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Spring MVC RestController 404 The requested resource is not available

I am trying to write a simple 'hello world' application using Spring MVC.
My goal is to send a GET response and receive a text message, however it keeps returning 404 "The requested resource [/api/hello] is not available". What can potentially be wrong? Below is my code:
package org.example.rest.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
#RequestMapping("/api")
public class MyRestController {
#GetMapping("/hello")
public String hello() {
return "Hello";
}
}
Config
package org.example.rest.configuration;
import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.orm.hibernate5.HibernateTransactionManager;
import org.springframework.orm.hibernate5.LocalSessionFactoryBean;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import javax.sql.DataSource;
import java.beans.PropertyVetoException;
import java.util.Properties;
#EnableWebMvc
#Configuration
#EnableTransactionManagement
#ComponentScan(basePackages = "org.example.rest")
public class MyConfig {
#Bean
public DataSource dataSource() {
ComboPooledDataSource dataSource = new ComboPooledDataSource();
try {
dataSource.setDriverClass("com.mysql.cj.jdbc.Driver");
dataSource.setJdbcUrl("jdbc:mysql://localhost:3306/my_db?useSSL=false&serverTimezone=UTC");
dataSource.setUser("bestuser");
dataSource.setPassword("bestuser");
} catch (PropertyVetoException e) {
throw new RuntimeException(e);
}
return dataSource;
}
#Bean
public LocalSessionFactoryBean sessionFactoryBean() {
LocalSessionFactoryBean sessionFactoryBean = new LocalSessionFactoryBean();
sessionFactoryBean.setDataSource(dataSource());
sessionFactoryBean.setPackagesToScan("org.example.rest.entity");
Properties hibernateProperties = new Properties();
hibernateProperties.setProperty("hibernate.dialect",
"org.hibernate.dialect.MySQLDialect");
hibernateProperties.setProperty("hibernate.show_sql",
"true");
sessionFactoryBean.setHibernateProperties(hibernateProperties);
return sessionFactoryBean;
}
#Bean
public HibernateTransactionManager hibernateTransactionManager() {
HibernateTransactionManager manager = new HibernateTransactionManager();
manager.setSessionFactory(sessionFactoryBean().getObject());
return manager;
}
}
package org.example.rest.configuration;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class MyWebInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
#Override
protected Class<?>[] getRootConfigClasses() {
return null;
}
#Override
protected Class<?>[] getServletConfigClasses() {
return new Class[]{MyConfig.class};
}
#Override
protected String[] getServletMappings() {
return new String[]{"/"};
}
}
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>org.example</groupId>
<artifactId>spring-rest</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.9.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.1</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.4.24.Final</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.32</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.4</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>5.3.9</version>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.22</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.11.3</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
I am using IntelliJ IDEA 2022.2.2 (Ultimate Edition).
Server is Tomcat 9.0.71

How to detect from where 404 error is coming? debugger calls the method and works fine but then stills it showing 404 error

package com.crudoperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
#Controller
public class EmployeeController {
#Autowired
private EmployeeService employeeService;
#RequestMapping("/")
public String helloGfg() {
return "hii";
}
#PostMapping("/saveEmployee")
public String saveEmployee(#ModelAttribute("employee") Employee employee) {
employeeService.saveEmployee(employee);
return "redirect:/showEmployee";
}
}
debugger comes in helloGfg method but then it still showing 404 error..i think there will be some other dependency or annotaion based issues......how could i find the issue?below is my pom.xml
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.crudoperation</groupId>
<artifactId>crudoperation</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>crudoperation Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<spring.version>5.1.0.RELEASE</spring.version>
</properties>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>javax.servlet.jsp.jstl-api</artifactId>
<version>1.2.1</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.thymeleaf</groupId>
<artifactId>thymeleaf-spring5</artifactId>
<version>3.0.11.RELEASE</version>
</dependency>
<dependency>
<groupId>org.postgresql</groupId>
<artifactId>postgresql</artifactId>
<version>42.3.2</version>
</dependency>
<dependency>
<groupId>org.apache.tomcat</groupId>
<artifactId>tomcat-jasper</artifactId>
<version>8.5.51</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.17.Final</version>
</dependency>
</dependencies>
<build>
<finalName>crudoperation</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>3.3.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
how to find from where the error is coming..in maven project in webapp directory when i seperately run as run on server then it did not even find seprate file..how to solve it?
this is my project structure..which thing i need to remove.i cannot understand.
here is the code for viewResolver
package com.crudoperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Description;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;
import org.thymeleaf.templateresolver.ServletContextTemplateResolver;
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = "com.crudoperation")
public class EmployeeAppConfig implements WebMvcConfigurer {
#Bean
public InternalResourceViewResolver resolver() {
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setViewClass(JstlView.class);
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".jsp");
return resolver;
}
#Bean
public SpringResourceTemplateResolver templateResolver() {
// SpringResourceTemplateResolver automatically integrates with Spring's own
// resource resolution infrastructure, which is highly recommended.
SpringResourceTemplateResolver templateResolver = new SpringResourceTemplateResolver();
templateResolver.setApplicationContext(this.applicationContext);
templateResolver.setPrefix("/WEB-INF/templates/");
templateResolver.setSuffix(".html");
// HTML is the default value, added here for the sake of clarity.
templateResolver.setTemplateMode(TemplateMode.HTML);
// Template cache is true by default. Set to false if you want
// templates to be automatically updated when modified.
templateResolver.setCacheable(true);
return templateResolver;
}
public void addResourceHandlers(ResourceHandlerRegistry resourceHandlerRegistry) {
resourceHandlerRegistry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
}

Try to define in webapp folder a hii.html file. helloGfg is returning hii but the resource with such name is missing.

Now that you have both the ViewResolver in place, you can add/set Order to them. Try,
templateResolver.setOrder(0); //or lower value

first I have to add
package com.crudoperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Description;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import org.thymeleaf.spring3.SpringTemplateEngine;
import org.thymeleaf.spring3.templateresolver.SpringResourceTemplateResolver;
import org.thymeleaf.spring3.view.ThymeleafViewResolver;
import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver;
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = "com.crudoperation")
#Qualifier(value = "EmployeeAppConfig")
public class EmployeeAppConfig implements WebMvcConfigurer {
#Autowired
ApplicationContext applicationContext;
#Override
public void addResourceHandlers(ResourceHandlerRegistry resourceHandlerRegistry) {
resourceHandlerRegistry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
#Bean
public ClassLoaderTemplateResolver yourTemplateResolver() {
ClassLoaderTemplateResolver configurer = new ClassLoaderTemplateResolver();
configurer.setPrefix("/WEB-INF/views/");
configurer.setSuffix(".html");
configurer.setCharacterEncoding("UTF-8");
configurer.setOrder(0); // this is important. This way spring //boot will listen to both places 0 and 1
configurer.setCacheable(false);
return configurer;
}
#Bean
public SpringResourceTemplateResolver templateResolver() {
SpringResourceTemplateResolver srtr = new SpringResourceTemplateResolver();
srtr.setApplicationContext(applicationContext);
srtr.setPrefix("/WEB-INF/views/");
srtr.setSuffix(".html");
return srtr;
}
#Bean
#Description("Thymeleaf template engine with Spring integration")
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine templateEngine = new SpringTemplateEngine();
templateEngine.setTemplateResolver(templateResolver());
return templateEngine;
}
#Bean
#Description("Thymeleaf view resolver")
public ViewResolver viewResolver() {
ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
viewResolver.setTemplateEngine(templateEngine());
viewResolver.setCharacterEncoding("UTF-8");
return viewResolver;
}
}
so that path can be found

Could not autowire. No beans of 'JobRepositoryTestUtils' type found. With SpringBatchTest Annotation added

I am working on a Spring Batch unit testing using the #SpringBatchTest annotation which is supposed to automatically add the beans for JobLauncherTestUtils and JobRepositoryTestUtils.
Here's the Job configuration class:
#Configuration
#EnableBatchProcessing
public class JobConfiguration {
#Bean
public Job getJob(JobBuilderFactory jobBuilderFactory,
#Qualifier("flow_master") Flow flowMaster) {
return jobBuilderFactory.get("job")
.incrementer(new RunIdIncrementer())
.start(flowMaster)
.build().build();
}
}
Here's the Test Class:
#ExtendWith(SpringExtension.class)
#SpringBatchTest
#ContextConfiguration(classes = JobConfiguration.class)
public class SpringBatchTest {
#Autowired
private JobLauncherTestUtils jobLauncherTestUtils;
#Before
public void clearJobExecutions() {
this.jobRepositoryTestUtils.removeJobExecutions();
}
#Test
public void testMyJob() throws Exception {
JobParameters jobParameters = this.jobLauncherTestUtils.getUniqueJobParameters();
JobExecution jobExecution = this.jobLauncherTestUtils.launchJob(jobParameters);
Assert.assertEquals(ExitStatus.COMPLETED, jobExecution.getExitStatus());
}
}
Problem:
I am getting the error messages:
Could not autowire. No beans of 'JobLauncherTestUtils' type found.
I have cloned some repo examples which are supposed to work but I am getting the same error for all of them.
Am I missing something?

You did not share your imports but you are probably mixing imports between junit4 and junit5. I'm not able to reproduce your error. Here is a complete example:
The job configuration class:
package com.example.demo;
import javax.sql.DataSource;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
#Configuration
#EnableBatchProcessing
public class MyJobConfig {
#Bean
public Job job(JobBuilderFactory jobs, StepBuilderFactory steps) {
return jobs.get("job")
.start(steps.get("step")
.tasklet((contribution, chunkContext) -> {
System.out.println("Hello world!");
return RepeatStatus.FINISHED;
}).build())
.build();
}
#Bean
public DataSource dataSource() {
return new EmbeddedDatabaseBuilder()
.setType(EmbeddedDatabaseType.H2)
.addScript("/org/springframework/batch/core/schema-h2.sql")
.build();
}
public static void main(String[] args) throws Exception {
ApplicationContext context = new AnnotationConfigApplicationContext(MyJobConfig.class);
JobLauncher jobLauncher = context.getBean(JobLauncher.class);
Job job = context.getBean(Job.class);
jobLauncher.run(job, new JobParameters());
}
}
The test class:
package com.example.demo;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.test.JobLauncherTestUtils;
import org.springframework.batch.test.JobRepositoryTestUtils;
import org.springframework.batch.test.context.SpringBatchTest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit.jupiter.SpringExtension;
#ExtendWith(SpringExtension.class)
#SpringBatchTest
#ContextConfiguration(classes = MyJobConfig.class)
class MyJobConfigTest {
#Autowired
private JobLauncherTestUtils jobLauncherTestUtils;
#Autowired
private JobRepositoryTestUtils jobRepositoryTestUtils;
#BeforeEach
public void clearJobExecutions() {
this.jobRepositoryTestUtils.removeJobExecutions();
}
#Test
public void testMyJob() throws Exception {
// given
JobParameters jobParameters = this.jobLauncherTestUtils.getUniqueJobParameters();
// when
JobExecution jobExecution = this.jobLauncherTestUtils.launchJob(jobParameters);
// then
Assertions.assertEquals(ExitStatus.COMPLETED, jobExecution.getExitStatus());
}
}
and the 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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>so67767525</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>so67767525</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.batch</groupId>
<artifactId>spring-batch-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.batch</groupId>
<artifactId>spring-batch-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
</plugins>
</build>
<!-- While this has "boot" in the name, it does not bring any Spring Boot feature. -->
<!-- It is used to manage Spring projects dependencies that are known to work correctly together -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>2.4.6</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
</project>
The test runs successfully without the error you mentioned.

Whitelabel Error Page This application .... There was an unexpected error (type=Unauthorized, status=401). Unauthorized

When I run the application, it displays this error (error 401).
How fix this problem and thank's :
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing
this as a fallback. There was an unexpected error (type=Unauthorized,
status=401). Unauthorized
pom.xml :
<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>
<artifactId>app-back</artifactId>
<name>app-back</name>
<description>module app backend </description>
<packaging>war</packaging>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
</parent>
<properties>
<start-class>app.AppApplication</start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>
<hibernate.core.version>5.4.2.Final</hibernate.core.version>
<maven.war.plugin.version>3.2.0</maven.war.plugin.version>
<jjwt.version>0.9.1</jjwt.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-security</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>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>${hibernate.core.version}</version>
</dependency>
<!-- Spring data JPA, default tomcat pool, exclude it -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- https://mvnrepository.com/artifact/io.jsonwebtoken/jjwt -->
<dependency>
<groupId>io.jsonwebtoken</groupId>
<artifactId>jjwt</artifactId>
<version>${jjwt.version}</version>
</dependency>
</dependencies>
<build>
<finalName>app</finalName>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>${maven.war.plugin.version}</version>
<configuration>
<packagingExcludes>WEB-INF/lib/tomcat-*.jar</packagingExcludes>
<warName>app</warName>
</configuration>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<executions>
<execution>
<id>copy-resources</id>
<phase>validate</phase>
<goals><goal>copy-resources</goal></goals>
<configuration>
<outputDirectory>${basedir}/target/classes/static/</outputDirectory >
<resources>
<resource>
<directory>../app-front/dist/app-front</directory>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
WebSecurityConfig.java :
package app.auth;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.AuthenticationEntryPoint;
#Configuration
#EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
private static final String[] ACCEPTED_FILES = {"/*.html", "/*.css", "/*.js", "/*.jpg", "/*.png", "/*.ico", "/*.txt", "/*.svg", "/*.eot", "/*.woff2", "/*.ttf", "/*.woff"};
#Autowired
public UserDetailsService userDetailsService;
#Autowired
JwtTokenProvider jwtTokenProvider;
#Bean
public BCryptPasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
};
#Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
}
#Bean("authenticationManager")
#Override
public AuthenticationManager authenticationManagerBean() throws Exception {
return super.authenticationManagerBean();
}
#Bean
public AuthenticationEntryPoint unauthorizedEntryPoint() {
return (request, response, authException) -> response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");
}
#Override
public void configure(WebSecurity web) throws Exception {
web
.ignoring()
.antMatchers("/assets/**","/home/**");
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http.cors().and()
.csrf().disable().sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and().authorizeRequests().antMatchers("/auth/sign-in").permitAll()
.and().authorizeRequests().antMatchers(ACCEPTED_FILES).permitAll()
.antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
.antMatchers("/auth/admin/**").hasRole("ADMIN")
.antMatchers("/object/admin/**").hasRole("ADMIN")
.and().authorizeRequests().anyRequest().authenticated()
.and().exceptionHandling().authenticationEntryPoint(unauthorizedEntryPoint())
.and().apply(new JwtConfigurer(jwtTokenProvider))
.and().httpBasic().disable();
}
}
Appl.java :
package myApp.app;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.servlet.support.SpringBootServletInitializer;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
#Configuration
#ComponentScan("app")
#EnableJpaRepositories("app.repositories")
#EntityScan( basePackages = {"app.entities"} )
#SpringBootApplication
#EnableAutoConfiguration
public class RefMetierApplication extends SpringBootServletInitializer {
public static void main(String[] args) {
SpringApplication.run(RefMetierApplication.class, args);
}
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(RefMetierApplication.class);
}
}
and this method in userServiceImpl.java :
#Override
public Map<String, String> login(appUser requestUser) {
UsernamePasswordAuthenticationToken authenticationTokenRequest = new UsernamePasswordAuthenticationToken(
requestUser.getUsername(), requestUser.getPassword());
try {
Authentication authentication = this.authenticationManager.authenticate(authenticationTokenRequest);
SecurityContext securityContext = SecurityContextHolder.getContext();
securityContext.setAuthentication(authentication);
appUser user = (appUser) authentication.getPrincipal();
String token = jwtTokenProvider.createToken(requestUser.getUsername(), user.getAuthorities());
Map<String, String> model = new HashMap<>();
model.put("username", requestUser.getUsername());
model.put("token", token);
if(user.hasRule(ParamsEnum.ROLE_ADMIN.getValue())) {
model.put("rule", "ADMIN");
}
else {
model.put("rule", "USER");
}
return model;
} catch (Exception e) {
e.printStackTrace();
throw new BadCredentialsException(ParamsEnum.BAD_CREDENTIALS.getValue());
}
}

You must not have setup ADMIN ROLE, for the User attempting request.

Swagger not working with Spring REST API

Hello i am trying to implement swagger with Spring REST, i am not using Spring Boot to create REST API's, i have used normal Spring REST API.
The problem when i run the application and if i navigate to this url
http://localhost:8080/spring-mvc-restfull-crud-example/swagger-ui.html
i am getting only the header of swagger-ui, there is nothing else. I am using Java config instead of XML config.
pom.xml
<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.boraji.tutorial.spring</groupId>
<artifactId>spring-mvc-restfull-crud-example</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<failOnMissingWebXml>false</failOnMissingWebXml>
</properties>
<dependencies>
<!-- Spring MVC Dependency -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.10.RELEASE</version>
</dependency>
<!-- Spring ORM -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>4.3.10.RELEASE</version>
</dependency>
<!-- Hibernate ORM -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.11.Final</version>
</dependency>
<!-- Hibernate-C3P0 Integration -->
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>5.2.11.Final</version>
</dependency>
<!-- c3p0 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!-- Mysql Connector -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.5</version>
</dependency>
<!-- Jackson API for JSON -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.8.7</version>
</dependency>
<!-- Servlet Dependency -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- this is for integrating swagger -->
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger2</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-swagger-ui</artifactId>
<version>2.6.1</version>
</dependency>
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-data-rest</artifactId>
<version>2.6.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.5.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
<!-- Embedded Apache Tomcat required for testing web application -->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
WebConfig.java
package com.boraji.tutorial.spring.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.config.annotation.CorsRegistry;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import com.google.common.base.Predicates;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = { "com.boraji.tutorial.spring.controller" })
public class WebConfig extends WebMvcConfigurerAdapter {
#Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("/**");
}
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("swagger-ui.html").addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
}
}
BookController.java
package com.boraji.tutorial.spring.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.DeleteMapping;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.PutMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RestController;
import com.boraji.tutorial.spring.model.Book;
import com.boraji.tutorial.spring.service.BookService;
import io.swagger.annotations.Api;
#CrossOrigin(origins = "*")
#RestController
public class BookController {
#Autowired
private BookService bookService;
/*---Add new book---*/
#PostMapping("/book")
public ResponseEntity<?> save(#RequestBody Book book) {
long id = bookService.save(book);
return ResponseEntity.ok().body("New Book has been saved with ID:" + id);
}
/*---Get a book by id---*/
#GetMapping("/book/{id}")
public ResponseEntity<Book> get(#PathVariable("id") long id) {
Book book = bookService.get(id);
return ResponseEntity.ok().body(book);
}
/*---get all books---*/
#GetMapping("/book")
public ResponseEntity<List<Book>> list() {
List<Book> books = bookService.list();
return ResponseEntity.ok().body(books);
}
/*---Update a book by id---*/
#PutMapping("/book/{id}")
public ResponseEntity<?> update(#PathVariable("id") long id, #RequestBody Book book) {
bookService.update(id, book);
return ResponseEntity.ok().body("Book has been updated successfully.");
}
/*---Delete a book by id---*/
#DeleteMapping("/book/{id}")
public ResponseEntity<?> delete(#PathVariable("id") long id) {
bookService.delete(id);
return ResponseEntity.ok().body("Book has been deleted successfully.");
}
}
In the resources folder, i have db.properties file
# MySQL properties
mysql.driver=com.mysql.cj.jdbc.Driver
mysql.url=jdbc:mysql://localhost:3306/bookdb
mysql.user=root
mysql.password=root
# Hibernate properties
hibernate.show_sql=true
hibernate.hbm2ddl.auto=update
#C3P0 properties
hibernate.c3p0.min_size=5
hibernate.c3p0.max_size=20
hibernate.c3p0.acquire_increment=1
hibernate.c3p0.timeout=1800
hibernate.c3p0.max_statements=150
MyWebAppInitializer.java
package com.boraji.tutorial.spring.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class MyWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
#Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] { AppConfig.class };
}
#Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] { WebConfig.class };
}
#Override
protected String[] getServletMappings() {
return new String[] { "/" };
}
}
can you please anyone help me that what is wrong in this? is there anything that i need to add?

You have not defined Docket bean and neither you have used the #EnableSwagger2
The configuration of Swagger mainly centers around the Docket bean. Swagger 2 is enabled through the #EnableSwagger2 annotation. Refer the below code.
#Configuration
#EnableSwagger2
public class SwaggerConfig {
#Bean
public Docket customImplementation() {
return new Docket(DocumentationType.SWAGGER_2).pathMapping("/data").apiInfo(apiInfo());
}
private ApiInfo apiInfo() {
return new ApiInfo("ISW ADR Application",
"ADR or is another business line within the Issuer services business group."
+ "The primary functionalities of ADR are maintained within the DR system (mainframe) "
+ "Four main functionalities that are imported : "
+" 1) Dividend Announcements"
+ " 2) Depositary Service fees"
+ " 3) DR Fees"
+ " 4) DR Gross revenue.",
"ADR V2", "Terms of service", "xyz", "License of API", "API license URL");
}
}

You have not enabled swagger using #EnableSwagger2 and also have not returned a Docket Bean. Refer this.
#Configuration
#EnableSwagger2
public class SwaggerConfig {
#Bean
public Docket demoApi() {
return new Docket(DocumentationType.SWAGGER_2).select()
.apis(RequestHandlerSelectors.basePackage("com.example.demo"))
.paths(PathSelectors.regex("/person.*")).build();
}
}