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Problem with annotation #Autowired. how to decide?

There is a code:
package com.example.sweater3.domain;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class Message {
#Id
#GeneratedValue(strategy=GenerationType.AUTO)
private Integer id;
private String text;
private String tag;
public Message() {
}
public Message(String text, String tag) {
this.text = text;
this.tag = tag;
}
public void setText(String text) {
this.text = text;
}
public String getText() {
return text;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getTag() {
return tag;
}
public void setTag(String tag) {
this.tag = tag;
}
}
_
package com.example.sweater3.repos;
import com.example.sweater3.domain.Message;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
import java.util.List;
#Repository
public interface MessageRepo extends CrudRepository<Message, Long> {
List<Message> findByTag(String tag);
}
__
package com.example.sweater3;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
__
package com.example.sweater3;
import com.example.sweater3.repos.MessageRepo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
#Controller
public class GreetingController {
#Autowired
private MessageRepo messageRepo;
}
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>sweater3</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mustache</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>javax.persistence-api</artifactId>
<version>2.2</version>
</dependency>
<dependency>
<groupId>org.springframework.data</groupId>
<artifactId>spring-data-commons</artifactId>
<version>2.1.9.RELEASE</version>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
When the program starts, such an error crashes:
:: Spring Boot :: (v2.0.0.RELEASE)
2019-10-30 21:28:05.351 INFO 4044 --- [ restartedMain] com.example.sweater3.Application : Starting Application on IlyaPC with PID 4044 (D:\EPAM\1Spring2019(04.19-09.19)\My\TEST\5October\30\sweater3\target\classes started by Ilya in D:\EPAM\1Spring2019(04.19-09.19)\My\TEST\5October\30\sweater3)
2019-10-30 21:28:05.354 INFO 4044 --- [ restartedMain] com.example.sweater3.Application : No active profile set, falling back to default profiles: default
2019-10-30 21:28:05.779 INFO 4044 --- [ restartedMain] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#7f8d5a6e: startup date [Wed Oct 30 21:28:05 MSK 2019]; root of context hierarchy
2019-10-30 21:28:10.905 INFO 4044 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-10-30 21:28:10.967 INFO 4044 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-10-30 21:28:10.968 INFO 4044 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.28
2019-10-30 21:28:10.985 INFO 4044 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jdk1.8.0_212\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\Program Files\Java\jdk-12.0.1\bin\;C:\Program Files\Java\jdk1.8.0_212\bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\Program Files\Java\jre1.8.0_221\bin;C:\Users\Илья\AppData\Roaming\npm;.]
2019-10-30 21:28:11.243 INFO 4044 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-10-30 21:28:11.244 INFO 4044 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 5477 ms
2019-10-30 21:28:11.646 INFO 4044 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2019-10-30 21:28:11.656 INFO 4044 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2019-10-30 21:28:11.657 INFO 4044 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2019-10-30 21:28:11.657 INFO 4044 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2019-10-30 21:28:11.657 INFO 4044 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2019-10-30 21:28:11.741 WARN 4044 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'greetingController': Unsatisfied dependency expressed through field 'messageRepo'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.example.sweater3.repos.MessageRepo' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {#org.springframework.beans.factory.annotation.Autowired(required=true)}
2019-10-30 21:28:11.745 INFO 4044 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2019-10-30 21:28:11.780 INFO 4044 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-10-30 21:28:12.257 ERROR 4044 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Field messageRepo in com.example.sweater3.GreetingController required a bean of type 'com.example.sweater3.repos.MessageRepo' that could not be found.
Action:
Consider defining a bean of type 'com.example.sweater3.repos.MessageRepo' in your configuration.
If I comment on the #Autowired annotation everything works.
What is the problem and how to solve?
p.s. The code is as simplified as possible, since I removed extra pieces so that they would not interfere with reading the code and clutter up the review.
upd:
Response to comments:
1. Adina Fometescu https://stackoverflow.com/a/58631848/11688668
after adding the following error appears -
2019-10-30 21:46:01.861 WARN 2716 --- [ restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'inMemoryDatabaseShutdownExecutor' defined in class path resource [org/springframework/boot/devtools/autoconfigure/DevToolsDataSourceAutoConfiguration.class]: Unsatisfied dependency expressed through method 'inMemoryDatabaseShutdownExecutor' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class
2019-10-30 21:46:01.885 INFO 2716 --- [ restartedMain] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2019-10-30 21:46:01.943 INFO 2716 --- [ restartedMain] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-10-30 21:46:01.970 ERROR 2716 --- [ restartedMain] o.s.b.d.LoggingFailureAnalysisReporter :
***************************
APPLICATION FAILED TO START
***************************
Description:
Failed to auto-configure a DataSource: 'spring.datasource.url' is not specified and no embedded datasource could be auto-configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).

You must enable repositories in your application :
#SpringBootApplication
#EnableJpaRepositories
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
Also make sure that you add :
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
UPDATE :
You must configure your database connection and driver. Example with H2 (in memory database)
Add new dependency:
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
In application.properties add:
spring.datasource.url=jdbc:h2:mem:testdb
spring.datasource.driverClassName=org.h2.Driver
spring.datasource.username=root
spring.datasource.password=root
spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration'

I am trying to develop a sample spring boot application that has spring JPA and Hibernate implementation. While I managed to get my setup complete, I am getting the following error while running the application.
Error creating bean with name
'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration'
I suspect this is some kind of configuration based error, but I am unable to pin point the source of the error.
I have seen some posts with this error and tried those resolutions. But those didn't help me resolve the error.
Here is my application's setup.
POM.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.shandesh</groupId>
<artifactId>training</artifactId>
<version>1.0-SNAPSHOT</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.0.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.oracle</groupId>
<artifactId>ojdbc6</artifactId>
<version>11.2.0.4</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
<exclusions>
<exclusion>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jdbc</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>2.6.0</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.16</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
application.yml file :-
spring:
profiles: dev
datasource:
url: jdbc:oracle:thin:#//localhost:1521/orcl
driverClassName: oracle.jdbc.driver.OracleDriver
username: ****
password: ****
jpa:
show_sql: true
generate-ddl: false
hibernate:
ddl-auto: none
properties:
hibernate.dialect: org.hibernate.dialect.OracleDialect
Entity class :-
package com.shandesh.dao;
import lombok.Getter;
import lombok.Setter;
import javax.persistence.*;
import java.sql.Timestamp;
#Getter
#Setter
#Entity
#Table(name = "APPUSER")
public class AppUserDTO {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "USER_ID")
Long userId;
#Column(name = "USER_NAME")
String userName;
#Column(name = "USER_FIRST_NAME")
String userFirstName;
#Column(name = "USER_LAST_NAME")
String userLastName;
#Column(name = "LAST_UPDATED_BY")
String lastUpdatedBy;
#Column(name = "LAST_UPDATED_DATE")
Timestamp lastUpdatedDate;
}
Repository class :-
package com.shandesh.repository;
import com.shandesh.dao.AppUserDTO;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.stereotype.Repository;
import javax.transaction.Transactional;
import java.util.List;
#Repository
public interface AppUserRepository extends JpaRepository<AppUserDTO, Integer> {
List<AppUserDTO> findByUserName(String userName);
List<AppUserDTO> findByUserId(Integer userId);
List<AppUserDTO> findAll();
#Modifying
Long deleteByUserName(String userName);
#Modifying
Long deleteByUserid(Integer userId);
}
Service class :-
package com.shandesh.service;
import com.shandesh.dao.AppUserDTO;
import com.shandesh.repository.AppUserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
#Service
public class AppUserService {
#Autowired
private AppUserRepository appUserRepository;
public List<AppUserDTO> getAllAppUsers() {
return appUserRepository.findAll();
}
}
Controller class :-
package com.shandesh.controller;
import com.shandesh.dao.AppUserDTO;
import com.shandesh.service.AppUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import java.util.List;
#RestController
#EnableAutoConfiguration //(exclude={DataSourceAutoConfiguration.class})
public class UserController {
#Autowired
private AppUserService appUserService;
#RequestMapping(value = "/getAllUsers", produces = MediaType.APPLICATION_JSON_VALUE)
public List<AppUserDTO> getAllUsers() { return appUserService.getAllAppUsers(); }
}
Stack trace while running the application via IntelliJ console.
"C:\Program Files\Java\jdk1.8.0_141\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dspring.jmx.enabled=true -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2019.1.2\lib\idea_rt.jar=50180:C:\Program Files\JetBrains\IntelliJ IDEA 2019.1.2\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_141\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_141\jre\lib\rt.jar;G:\Shantanu\Learning\Technology\Projects\training\target\classes;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-web\2.1.0.RELEASE\spring-boot-starter-web-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter\2.1.0.RELEASE\spring-boot-starter-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot\2.1.0.RELEASE\spring-boot-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.1.0.RELEASE\spring-boot-autoconfigure-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.1.0.RELEASE\spring-boot-starter-logging-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\Shantanu.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\Shantanu.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.11.1\log4j-to-slf4j-2.11.1.jar;C:\Users\Shantanu.m2\repository\org\apache\logging\log4j\log4j-api\2.11.1\log4j-api-2.11.1.jar;C:\Users\Shantanu.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\Shantanu.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-core\5.1.2.RELEASE\spring-core-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-jcl\5.1.2.RELEASE\spring-jcl-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\yaml\snakeyaml\1.23\snakeyaml-1.23.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-json\2.1.0.RELEASE\spring-boot-starter-json-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.9.7\jackson-databind-2.9.7.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.9.0\jackson-annotations-2.9.0.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\jackson\core\jackson-core\2.9.7\jackson-core-2.9.7.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.9.7\jackson-datatype-jdk8-2.9.7.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.9.7\jackson-datatype-jsr310-2.9.7.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\jackson\module\jackson-module-parameter-names\2.9.7\jackson-module-parameter-names-2.9.7.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-tomcat\2.1.0.RELEASE\spring-boot-starter-tomcat-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\apache\tomcat\embed\tomcat-embed-core\9.0.12\tomcat-embed-core-9.0.12.jar;C:\Users\Shantanu.m2\repository\org\apache\tomcat\embed\tomcat-embed-el\9.0.12\tomcat-embed-el-9.0.12.jar;C:\Users\Shantanu.m2\repository\org\apache\tomcat\embed\tomcat-embed-websocket\9.0.12\tomcat-embed-websocket-9.0.12.jar;C:\Users\Shantanu.m2\repository\org\hibernate\validator\hibernate-validator\6.0.13.Final\hibernate-validator-6.0.13.Final.jar;C:\Users\Shantanu.m2\repository\javax\validation\validation-api\2.0.1.Final\validation-api-2.0.1.Final.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-web\5.1.2.RELEASE\spring-web-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-beans\5.1.2.RELEASE\spring-beans-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-webmvc\5.1.2.RELEASE\spring-webmvc-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-aop\5.1.2.RELEASE\spring-aop-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-context\5.1.2.RELEASE\spring-context-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-expression\5.1.2.RELEASE\spring-expression-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\com\oracle\ojdbc6\11.2.0.4\ojdbc6-11.2.0.4.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-data-jpa\2.1.0.RELEASE\spring-boot-starter-data-jpa-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-aop\2.1.0.RELEASE\spring-boot-starter-aop-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\aspectj\aspectjweaver\1.9.2\aspectjweaver-1.9.2.jar;C:\Users\Shantanu.m2\repository\javax\transaction\javax.transaction-api\1.3\javax.transaction-api-1.3.jar;C:\Users\Shantanu.m2\repository\javax\xml\bind\jaxb-api\2.3.1\jaxb-api-2.3.1.jar;C:\Users\Shantanu.m2\repository\org\springframework\data\spring-data-jpa\2.1.2.RELEASE\spring-data-jpa-2.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\data\spring-data-commons\2.1.2.RELEASE\spring-data-commons-2.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-orm\5.1.2.RELEASE\spring-orm-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-tx\5.1.2.RELEASE\spring-tx-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-aspects\5.1.2.RELEASE\spring-aspects-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\com\zaxxer\HikariCP\2.6.0\HikariCP-2.6.0.jar;C:\Users\Shantanu.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\Shantanu.m2\repository\org\springframework\boot\spring-boot-starter-jdbc\2.1.0.RELEASE\spring-boot-starter-jdbc-2.1.0.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\springframework\spring-jdbc\5.1.2.RELEASE\spring-jdbc-5.1.2.RELEASE.jar;C:\Users\Shantanu.m2\repository\org\projectlombok\lombok\1.16.16\lombok-1.16.16.jar;C:\Users\Shantanu.m2\repository\org\hibernate\hibernate-core\5.3.7.Final\hibernate-core-5.3.7.Final.jar;C:\Users\Shantanu.m2\repository\org\jboss\logging\jboss-logging\3.3.2.Final\jboss-logging-3.3.2.Final.jar;C:\Users\Shantanu.m2\repository\javax\persistence\javax.persistence-api\2.2\javax.persistence-api-2.2.jar;C:\Users\Shantanu.m2\repository\org\javassist\javassist\3.23.1-GA\javassist-3.23.1-GA.jar;C:\Users\Shantanu.m2\repository\net\bytebuddy\byte-buddy\1.9.3\byte-buddy-1.9.3.jar;C:\Users\Shantanu.m2\repository\antlr\antlr\2.7.7\antlr-2.7.7.jar;C:\Users\Shantanu.m2\repository\org\jboss\spec\javax\transaction\jboss-transaction-api_1.2_spec\1.1.1.Final\jboss-transaction-api_1.2_spec-1.1.1.Final.jar;C:\Users\Shantanu.m2\repository\org\jboss\jandex\2.0.5.Final\jandex-2.0.5.Final.jar;C:\Users\Shantanu.m2\repository\com\fasterxml\classmate\1.4.0\classmate-1.4.0.jar;C:\Users\Shantanu.m2\repository\javax\activation\javax.activation-api\1.2.0\javax.activation-api-1.2.0.jar;C:\Users\Shantanu.m2\repository\org\dom4j\dom4j\2.1.1\dom4j-2.1.1.jar;C:\Users\Shantanu.m2\repository\org\hibernate\common\hibernate-commons-annotations\5.0.4.Final\hibernate-commons-annotations-5.0.4.Final.jar;C:\Users\Shantanu.m2\repository\org\hibernate\hibernate-entitymanager\5.3.7.Final\hibernate-entitymanager-5.3.7.Final.jar" com.shandesh.Application
. ____ _ __ _ _
/\ / ' __ _ ()_ __ __ _ \ \ \ \
( ( )_ | '_ | '| | ' / ` | \ \ \ \
\/ )| |)| | | | | || (| | ) ) ) )
' |____| .|| ||| |__, | / / / /
=========|_|==============|___/=///_/
:: Spring Boot :: (v2.1.0.RELEASE)
2019-07-11 10:12:12.575 INFO 5872 --- [ main] com.shandesh.Application : Starting Application on SKD-PC with PID 5872 (G:\Shantanu\Learning\Technology\Projects\training\target\classes started by Shantanu in G:\Shantanu\Learning\Technology\Projects\training)
2019-07-11 10:12:12.582 INFO 5872 --- [ main] com.shandesh.Application : No active profile set, falling back to default profiles: default
2019-07-11 10:12:13.827 INFO 5872 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-07-11 10:12:13.925 INFO 5872 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 86ms. Found 1 repository interfaces.
2019-07-11 10:12:14.778 INFO 5872 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$bf78f5b2] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-07-11 10:12:15.211 INFO 5872 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-07-11 10:12:15.230 INFO 5872 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2019-07-11 10:12:15.231 INFO 5872 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/9.0.12
2019-07-11 10:12:15.238 INFO 5872 --- [ main] o.a.catalina.core.AprLifecycleListener : Loaded APR based Apache Tomcat Native library [1.2.21] using APR version [1.6.5].
2019-07-11 10:12:15.238 INFO 5872 --- [ main] o.a.catalina.core.AprLifecycleListener : APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
2019-07-11 10:12:15.238 INFO 5872 --- [ main] o.a.catalina.core.AprLifecycleListener : APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]
2019-07-11 10:12:15.242 INFO 5872 --- [ main] o.a.catalina.core.AprLifecycleListener : OpenSSL successfully initialized [OpenSSL 1.1.1a 20 Nov 2018]
2019-07-11 10:12:15.396 INFO 5872 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-07-11 10:12:15.396 INFO 5872 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2735 ms
2019-07-11 10:12:15.434 INFO 5872 --- [ main] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2019-07-11 10:12:15.439 INFO 5872 --- [ main] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/]
2019-07-11 10:12:15.440 INFO 5872 --- [ main] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/]
2019-07-11 10:12:15.440 INFO 5872 --- [ main] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'formContentFilter' to: [/]
2019-07-11 10:12:15.440 INFO 5872 --- [ main] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/]
2019-07-11 10:12:15.481 WARN 5872 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.zaxxer.hikari.HikariDataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Failed to determine a suitable driver class
2019-07-11 10:12:15.484 INFO 5872 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2019-07-11 10:12:15.523 INFO 5872 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2019-07-11 10:12:15.531 ERROR 5872 --- [ main] o.s.b.d.LoggingFailureAnalysisReporter :
APPLICATION FAILED TO START
Description:
Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.
Reason: Failed to determine a suitable driver class
Action:
Consider the following:
If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.
If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).
Process finished with exit code 1
I am hoping that this application would run successfully and I would be able to see JSON output of all user entries with https://localhost:8080/getAllUsers.

Change
findAppUserDTOSByUserName(String userName), findAppUserDTOSByUserId(Integer userId);
To
findByUserName(String userName), findByUserId(Integer userId);
The query builder mechanism built into Spring Data repository
infrastructure is useful for building constraining queries over
entities of the repository. The mechanism strips the prefixes find…By,
read…By, query…By, count…By, and get…By from the method and starts
parsing the rest of it. The introducing clause can contain further
expressions such as a Distinct to set a distinct flag on the query to
be created.
Also, note that you don't need to use #ResponseBody with #RestController as it is active by default. Change Return Type of getAllUsers() from Object to List<AppUserDTO>

Spring Boot Actuator not working and application.properties are Unknown in STS

Trying to test Spring Initializr Starter with Web and Actuator dependencies, but actuator endpoints are not becoming enabled.
I am expecting mapping /actuator/health in logs per documentation at Spring Boot Actuator: Production-ready features
I tried various properties, in application.properties:
management.security.enabled=false
management.endpoints.web.exposure.include=*
management.endpoints.web.expose=*
In STS, all three lines are yellow underlined with message indicating unknown property.
I did not touch the pom.xml file generated by Spring Initializr:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.geodepe.test</groupId>
<artifactId>health1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>health1</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
I would expect this to work, here is partial log without actuator mappings:
2018-08-06 21:06:14.235 INFO 52763 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 689 ms
2018-08-06 21:06:14.276 INFO 52763 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Servlet dispatcherServlet mapped to [/]
2018-08-06 21:06:14.279 INFO 52763 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-08-06 21:06:14.279 INFO 52763 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-08-06 21:06:14.280 INFO 52763 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-08-06 21:06:14.280 INFO 52763 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2018-08-06 21:06:14.355 INFO 52763 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-08-06 21:06:14.484 INFO 52763 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for #ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#a4102b8: startup date [Mon Aug 06 21:06:13 CDT 2018]; root of context hierarchy
2018-08-06 21:06:14.517 INFO 52763 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-08-06 21:06:14.517 INFO 52763 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-08-06 21:06:14.532 INFO 52763 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-08-06 21:06:14.532 INFO 52763 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-08-06 21:06:14.618 INFO 52763 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-08-06 21:06:14.653 INFO 52763 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2018-08-06 21:06:14.656 INFO 52763 --- [ main] c.f.test.health1.Health1Application : Started Health1Application in 1.347 seconds (JVM running for 1.741)
Curl test:
curl 'http://localhost:8080/actuator/health' -i -X GET
HTTP/1.1 404
Content-Type: application/json;charset=UTF-8
Transfer-Encoding: chunked
Date: Tue, 07 Aug 2018 03:09:02 GMT
{"timestamp":"2018-08-07T03:09:02.385+0000","status":404,"error":"Not Found","message":"No message available","path":"/actuator/health"}
Can any body tell me what I am missing and why STS does not recognize the properties?
This is not a duplicate to "actuator /refresh is not being provided in SpringBoot 2.0.1". The solution below shows that it was a JAR corruption problem.

After running
mvn clean install
I saw multiple errors even though IDE kept running without telling me about them (strange).
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.774 s
[INFO] Finished at: 2018-08-07T17:13:29-05:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project health1: Compilation failure: Compilation failure:
[ERROR] error reading /Users/xxx/.m2/repository/org/springframework/boot/spring-boot-actuator-autoconfigure/2.0.4.RELEASE/spring-boot-actuator-autoconfigure-2.0.4.RELEASE.jar; ZipFile invalid LOC header (bad signature)
[ERROR] error reading /Users/xxx/.m2/repository/org/springframework/boot/spring-boot-actuator/2.0.4.RELEASE/spring-boot-actuator-2.0.4.RELEASE.jar; ZipFile invalid LOC header (bad signature)
[ERROR] error reading /Users/xxx/.m2/repository/io/micrometer/micrometer-core/1.0.6/micrometer-core-1.0.6.jar; ZipFile invalid LOC header (bad signature)
[ERROR] /Users/georgedeprez/Documents/workspace-sts/health1/src/main/java/com/finantica/test/health1/Health1Application.java:[1,1] cannot access com.finantica.test.health1
[ERROR] invalid code lengths set
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project health1: Compilation failure
After deleting the jars:
rm /Users/xxx/.m2/repository/org/springframework/boot/spring-boot-actuator-autoconfigure/2.0.4.RELEASE/spring-boot-actuator-autoconfigure-2.0.4.RELEASE.jar
rm /Users/xxx/.m2/repository/org/springframework/boot/spring-boot-actuator/2.0.4.RELEASE/spring-boot-actuator-2.0.4.RELEASE.jar
rm /Users/xxx/.m2/repository/io/micrometer/micrometer-core/1.0.6/micrometer-core-1.0.6.jar
Followed by
mvn spring-boot:run
to force re-download.
Now I see logs indicating exposed endpoints:
/actuator/health now produces:

I my case I had to add my custom HealthIndicator:
#Component
public class HealthIndicator implements ReactiveHealthIndicator {
#Override
public Mono<Health> health() {
return checkDownstreamServiceHealth().onErrorResume(
ex -> Mono.just(new Health.Builder().down(ex).build())
);
}
private Mono<Health> checkDownstreamServiceHealth() {
return Mono.just(new Health.Builder().up().build());
}
}
I use spring boot actuator 2.2.3. From https://www.baeldung.com/spring-boot-actuators

Spring boot REST API 404 error

I am trying to create a basic spring boot application (JDK 1.8) with a REST API .
The following is my application code
package org.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ComponentScan;
#SpringBootApplication
#ComponentScan("org.demo")
#EnableAutoConfiguration
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
I have added a simple controller as follows
package org.demo.controllers;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
#RestController(value = "/hello")
public class HelloController {
#GetMapping
#ResponseBody
public String hello() {
return "Hello";
}
}
The POM file of my project is as follows
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.demo</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
When I run this application, it starts successfully. However, when I try to hit the URL localhost:8080 or loclahost:8080/hello, I get the 404 error message
The following are the startup logs
:: Spring Boot :: (v2.0.1.RELEASE)
2018-04-24 21:51:38.888 INFO 12068 --- [ main] org.demo.DemoApplication : Starting DemoApplication on DESKTOP-G2QR23G with PID 12068 (I:\demo\spring-boot\demo\target\classes started by chirayu in I:\demo\spring-boot\demo)
2018-04-24 21:51:38.892 INFO 12068 --- [ main] org.demo.DemoApplication : No active profile set, falling back to default profiles: default
2018-04-24 21:51:38.970 INFO 12068 --- [ main] ConfigServletWebServerApplicationContext : Refreshing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext#5745ca0e: startup date [Tue Apr 24 21:51:38 IST 2018]; root of context hierarchy
2018-04-24 21:51:39.617 INFO 12068 --- [ main] f.a.AutowiredAnnotationBeanPostProcessor : JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
2018-04-24 21:51:39.999 INFO 12068 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2018-04-24 21:51:40.030 INFO 12068 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2018-04-24 21:51:40.030 INFO 12068 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.29
2018-04-24 21:51:40.043 INFO 12068 --- [ost-startStop-1] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [I:\Program Files\Java\jdk1.8.0_66\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;I:\Program Files\Java\jdk1.8.0_66\bin;I:\Program Files\nodejs\;C:\Program Files (x86)\GtkSharp\2.12\bin;C:\Program Files (x86)\Skype\Phone\;I:\MinGW\bin;C:\Program Files (x86)\MySQL\MySQL Fabric 1.5 ^& MySQL Utilities 1.5\;C:\Program Files (x86)\MySQL\MySQL Fabric 1.5 ^& MySQL Utilities 1.5\Doctrine extensions for PHP\;I:\Program Files (x86)\maven\apache-maven-3.3.9\bin\;I:\Program Files (x86)\Heroku\bin;C:\Program Files (x86)\git\cmd;I:\Program Files\Git\cmd;I:\Program Files\PostgreSQL\9.6\bin;I:\RailsInstaller\Git\cmd;I:\RailsInstaller\Ruby2.2.0\bin;I:\Program Files (x86)\Python\Scripts\;I:\Program Files (x86)\Python\;C:\Users\chirayu\AppData\Roaming\npm;C:\Users\chirayu\AppData\Local\Microsoft\WindowsApps;I:\Program Files (x86)\Microsoft VS Code\bin;;.]
2018-04-24 21:51:40.164 INFO 12068 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2018-04-24 21:51:40.164 INFO 12068 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1198 ms
2018-04-24 21:51:40.215 INFO 12068 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-04-24 21:51:40.598 INFO 12068 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2018-04-24 21:51:40.633 INFO 12068 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with context path ''
2018-04-24 21:51:40.638 INFO 12068 --- [ main] org.demo.DemoApplication : Started DemoApplication in 2.2 seconds (JVM running for 2.797)
I am not sure what I might be missing. Please help.

I got the solution. It was due to package visibility. Main class was not able to found package in which controller class is present. So added all classes under same package. You can also place application class one level up. Got help from below link:
Spring Boot: Cannot access REST Controller on localhost (404)

Test as follow... did the trick for me remove the path from the notation #RestController then add the path #GetMapping notation as follow #GetMapping("/hello") test http://localhost:8080/hello you should get a correct response in order to have a response for this request http://localhost:8080/hello/hello need to add the follow:
#RestController
#RequestMapping(value = "/hello")

change to :
#RestController
#RequestMapping(value = "hello-controller")
public class HelloController {
#GetMapping(value="hello")
#ResponseBody
public String hello() {
return "Hello";
}
}
so you can use your api from : localhost:8080/hello-controller/hello
value in #RequestMapping below #RestController is define your class address.
value in #GetMapping is for your API address.
Hope this explanation help you.

Creating a RESTful web service with Spring Boot

I am learning RESTful web services using Spring boot. I am trying to create a web service that fetches address of a particular client.However when I try running the service i keep getting the following error:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing
this as a fallback.
Sun Jan 03 11:20:44 CST 2016 There was an unexpected error (type=Not
Found, status=404). No message available
The URL i am trying to access is
http://localhost:8084/showAddress
Can someone please tell me where am i going wrong. I downloaded a similar project from a friend's github account and it runs perfectly OK.
For the sake of simplicity i tried hard coding the values and created the following code in my controller class:
package com.digitek.controller;
import java.math.BigInteger;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
import com.example.model.Address;
#RestController
public class Controller {
private static BigInteger id;
private static Map<BigInteger, Address> addressMap;
//saves address objects into HashMap
private static void SaveAddress(Address address){
//instantiate hashmap when id is null
if(id == null){
id = BigInteger.ONE;
addressMap = new HashMap<BigInteger,Address>();
}
address.setId(id);
id.add(BigInteger.ONE);
addressMap.put(address.getId(), address);
}
static{
Address a1 = new Address();
a1.setAddress("29 East Judith Ann Drive");
SaveAddress(a1);
Address a2 = new Address();
a1.setAddress("2 East Judith Ann Drive");
SaveAddress(a2);
}
#RequestMapping(value = "/showAddress" ,method=RequestMethod.GET, produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Collection<Address>> showMessage(){
Collection<Address> address = addressMap.values();
return new ResponseEntity<Collection<Address>>(address , HttpStatus.OK);
}
}
Here is my pom.xml file
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>AddressService</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>AddressService</name>
<description>Demo project for Spring Boot</description>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Here is the console log
2016-01-03 11:09:30.359 INFO 6028 --- [ main] com.example.AddressServiceApplication : Starting AddressServiceApplication on Rishit with PID 6028 (started by Rishit Shah in D:\Rishit\Java workspaces\AddressService)
2016-01-03 11:09:30.364 INFO 6028 --- [ main] com.example.AddressServiceApplication : No active profile set, falling back to default profiles: default
2016-01-03 11:09:30.449 INFO 6028 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#33cb5951: startup date [Sun Jan 03 11:09:30 CST 2016]; root of context hierarchy 2016-01-03 11:09:31.655 INFO 6028 --- [ main] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2016-01-03 11:09:32.792 INFO 6028 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8084 (http)
2016-01-03 11:09:32.814 INFO 6028 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat 2016-01-03 11:09:32.816 INFO 6028 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.30 2016-01-03 11:09:32.965 INFO 6028 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2016-01-03 11:09:32.965 INFO 6028 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2521 ms
2016-01-03 11:09:33.628 INFO 6028
--- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-01-03 11:09:33.637 INFO 6028 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-01-03 11:09:33.639 INFO 6028
--- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-01-03 11:09:33.639 INFO 6028 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-01-03 11:09:33.639 INFO 6028
--- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-01-03 11:09:34.221 INFO 6028 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for #ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext#33cb5951: startup date [Sun Jan 03 11:09:30 CST 2016]; root of context hierarchy 2016-01-03 11:09:34.315 INFO 6028 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2016-01-03 11:09:34.317 INFO 6028 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2016-01-03 11:09:34.371 INFO 6028 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-01-03 11:09:34.371 INFO 6028 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2016-01-03 11:09:34.421 INFO 6028 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2016-01-03 11:09:34.588 INFO 6028 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-01-03 11:09:34.753 INFO 6028 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8084 (http)
2016-01-03 11:09:34.764 INFO 6028 --- [ main] com.example.AddressServiceApplication : Started AddressServiceApplication in 4.867 seconds (JVM running for 5.705)
2016-01-03 11:10:03.737 INFO 6028 --- [nio-8084-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring FrameworkServlet 'dispatcherServlet' 2016-01-03 11:10:03.737 INFO 6028 --- [nio-8084-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started 2016-01-03 11:10:03.759 INFO 6028 --- [nio-8084-exec-1] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 22 ms
P.S
I tried running the application on different ports, tried deleting and re creating it, and also tried running a similar application i downloaded from github created by my friend. Each time his application works but mine doesn't. I also made sure each and elements of our pom files match.
Thank you in advance

Make sure that your main class is in a root package above other classes.
When you run a Spring Boot Application, (i.e. a class annotated with #SpringBootApplication), Spring will only scan the classes below your main class package.
com
+- digitek
+- Application.java <--- your main class should be here, above your controller classes
|
+- model
| +- Address.java
+- controller
+- AddressController.java
The problem in your case was that Spring could not find the controller you created, because you placed it in a directory which was not scanned by Spring.
There is a chapter in the docs explaining how to structure your code using spring boot here.