I am new to Spring boot.I am getting ClassNotFoundException :Spring Application while doing the sample example using spring 1.5.7. I googled for solution and added spring boot maven build plugin.But still the problem not resolved. Please help.
<?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>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>1.5.7.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>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Below is my main class
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
I am getting the below Exception :
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication
at com.example.demo.DemoApplication.main(DemoApplication.java:10)
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more
The best way to create a spring boot project from scratch irrespective of build tool (maven, gradle, etc..) is to use https://start.spring.io/ search for your dependencies like (Web, actuator, etc..) and generate the project. Unzip the downloaded project and type the respective command mvn spring-boot:run in your case.
It seems to me that relevant dependencies are not downloaded from maven repo.
Try following command and check if the package compiles okay!
./mvnw clean package
Related
I am taking that mistake but I am working to solve the mistake , really I do not know why I am taking error ? In stackoverflow , there is similar of my error . I tried these but it did not work again. I used java 1.8 jdk and spring boot 2.3.2
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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.3.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.javakerem</groupId>
<artifactId>SpringBootDemoo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>SpringBootDemoo</name>
<description>Demo project for Spring Boot</description>
<properties>
<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>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
SpringBootDemooApplication.java
package com.javakerem.SpringBootDemoo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class SpringBootDemooApplication {
public static void main(String[] args) {
SpringApplication.run(SpringBootDemooApplication.class, args);
}
}
ProductsController.java
package com.javakerem.SpringBootDemoo.apiTest;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
#RestController
public class ProductsController {
#GetMapping("/")
public String get()
{
return "Kerem Kagan";
}
}
I can write a little english , i am sorry if i wrote false.
Mistake is that :
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication
at com.javacourse.springBootDemo.SpringBootDemoApplication.main(SpringBootDemoApplication.java:10)
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.SpringApplication
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
... 1 more
cd to THE_PROJECT_FOLDER via the cmd or git bash
mvn clean
maven install
maven package
go to the project using your IDE and go to the class containing the main method
Click on the #SpringBootApplication and see to the left an icon like a lamp
Click on it and select download with maven
run the applcation
Try this it may work fine for you
I have been facing some problems with spring boot and maven.
It seems that the <packaging>pom</packaging> tag, when added to pom.xml, somehow makes spring completely unaware of the parent-level applications.properties configuration file. When running, spring still will show the banner and info-level logging regardless of the properties stated. Why would that be the case? Is there a way to add those properties to my parent such that all modules would operate under given configuration? Would this become an anti-pattern?
Main class:
package com.example.app; //could also be inside the app-client module
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);
}
}
application.properties:
spring.main.banner-mode=off
logging.level.root=info
(parent) 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>
<packaging>pom</packaging>
<modules>
<module>app-client</module>
</modules>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example.</groupId>
<artifactId>app</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>app</name>
<description>Demo app</description>
<properties>
<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>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Totally agreeing with the comment of Andy on your question I like to point out, that the use of the packaging type pom is appropriate if you want to denote an artifact as some kind of module container are base project where you collect dependency information for your (sub-)modules.
However the #SpringBootApplication in your case shows us that you want to use your artifact for running business code. That on the other hand leads to packaging types like jar or war. Switch it to one of them and everything should run fine.
For more information please consult also the Maven reference for packaging.
Do you know how to make it work? It is clean spring-boot script without any edits, so I don't know what the hell is wrong. Only thing i have done is reinstall JDK and I dont know what more can I do.
package com.example.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
#SpringBootApplication
public class DemoApplication {
public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
This is error message:
"D:\Program Files\Java\jdk1.8.0_171\bin\java.exe" -XX:TieredStopAtLevel=1 -noverify -Dspring.output.ansi.enabled=always -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=50742 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dspring.liveBeansView.mbeanDomain -Dspring.application.admin.enabled=true "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2018.1.1\lib\idea_rt.jar=50743:C:\Program Files\JetBrains\IntelliJ IDEA 2018.1.1\bin" -Dfile.encoding=UTF-8 -classpath "D:\Program Files\Java\jdk1.8.0_171\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\deploy.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\access-bridge-64.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\cldrdata.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\dnsns.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\jaccess.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\jfxrt.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\localedata.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\nashorn.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\sunec.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\sunjce_provider.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\sunmscapi.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\sunpkcs11.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\ext\zipfs.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\javaws.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\jce.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\jfr.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\jfxswt.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\management-agent.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\plugin.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\resources.jar;D:\Program Files\Java\jdk1.8.0_171\jre\lib\rt.jar;C:\Users\Kordian\Desktop\demo1\target\classes;C:\Users\Kordian\.m2\repository\org\springframework\boot\spring-boot-starter\2.0.1.RELEASE\spring-boot-starter-2.0.1.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\boot\spring-boot\2.0.1.RELEASE\spring-boot-2.0.1.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\spring-context\5.0.5.RELEASE\spring-context-5.0.5.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\spring-aop\5.0.5.RELEASE\spring-aop-5.0.5.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\spring-beans\5.0.5.RELEASE\spring-beans-5.0.5.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\spring-expression\5.0.5.RELEASE\spring-expression-5.0.5.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\boot\spring-boot-autoconfigure\2.0.1.RELEASE\spring-boot-autoconfigure-2.0.1.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\boot\spring-boot-starter-logging\2.0.1.RELEASE\spring-boot-starter-logging-2.0.1.RELEASE.jar;C:\Users\Kordian\.m2\repository\ch\qos\logback\logback-classic\1.2.3\logback-classic-1.2.3.jar;C:\Users\Kordian\.m2\repository\ch\qos\logback\logback-core\1.2.3\logback-core-1.2.3.jar;C:\Users\Kordian\.m2\repository\org\apache\logging\log4j\log4j-to-slf4j\2.10.0\log4j-to-slf4j-2.10.0.jar;C:\Users\Kordian\.m2\repository\org\apache\logging\log4j\log4j-api\2.10.0\log4j-api-2.10.0.jar;C:\Users\Kordian\.m2\repository\org\slf4j\jul-to-slf4j\1.7.25\jul-to-slf4j-1.7.25.jar;C:\Users\Kordian\.m2\repository\javax\annotation\javax.annotation-api\1.3.2\javax.annotation-api-1.3.2.jar;C:\Users\Kordian\.m2\repository\org\springframework\spring-core\5.0.5.RELEASE\spring-core-5.0.5.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\springframework\spring-jcl\5.0.5.RELEASE\spring-jcl-5.0.5.RELEASE.jar;C:\Users\Kordian\.m2\repository\org\yaml\snakeyaml\1.19\snakeyaml-1.19.jar;C:\Users\Kordian\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar" com.example.demo.DemoApplication
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.boot.SpringApplicationRunListener : org.springframework.boot.context.event.EventPublishingRunListener
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:448)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:427)
at org.springframework.boot.SpringApplication.getRunListeners(SpringApplication.java:413)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:312)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243)
at com.example.demo.DemoApplication.main(DemoApplication.java:10)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.context.event.EventPublishingRunListener]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: org/springframework/aop/framework/AopProxyUtils
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:182)
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:444)
... 6 more
Caused by: java.lang.NoClassDefFoundError: org/springframework/aop/framework/AopProxyUtils
at org.springframework.context.event.AbstractApplicationEventMulticaster.addApplicationListener(AbstractApplicationEventMulticaster.java:108)
at org.springframework.boot.context.event.EventPublishingRunListener.<init>(EventPublishingRunListener.java:57)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:170)
... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.aop.framework.AopProxyUtils
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 14 more
Process finished with exit code 1
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>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</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>
</project>
Problem with spring related dependency versions.
Check your sring boot and spring version compatibility.
Ok, my problem was easier than i thought. Bugged files in maven repository, I repaired it this way
1.Delete repository folder in .m3/
2.Then right mouse button on project -> Maven -> Download Sources
3.Now everything is ok!
In eclipse I create a new spring boot starter project. The Spring Boot Version is 1.5.9.RELEASE and the dependency I include is the spring-boot-starter-web (this is all done by the Spring Project wizard in eclipse, so likely no error there). When I run it as Spring Boot app, I get the error
Exception in thread "main" java.lang.IllegalArgumentException: Cannot instantiate interface org.springframework.context.ApplicationContextInitializer : org.springframework.boot.context.ConfigurationWarningsApplicationContextInitializer
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:413)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:392)
at org.springframework.boot.SpringApplication.getSpringFactoriesInstances(SpringApplication.java:383)
at org.springframework.boot.SpringApplication.initialize(SpringApplication.java:249)
at org.springframework.boot.SpringApplication.<init>(SpringApplication.java:225)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107)
at spring.demo.rest.DemoApplication.main(DemoApplication.java:10)
Caused by: java.lang.NoClassDefFoundError: org/springframework/beans/BeanUtils
at org.springframework.boot.SpringApplication.createSpringFactoriesInstances(SpringApplication.java:409)
... 7 more
Caused by: java.lang.ClassNotFoundException: org.springframework.beans.BeanUtils
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 8 more
The class BeanUtils is in the spring-beans library which is clearly imported
This is my pom
<?xml version="1.0" encoding="UTF-8"?>
http://maven.apache.org/xsd/maven-4.0.0.xsd">
4.0.0
<groupId>spring.demo.rest</groupId>
<artifactId>restdemo</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>1.5.9.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>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
Note: I am behind a corporate proxy and the nexus we have mirrors the maven central repo. I have setup the proxy in settings.xml
EDIT
What I noticed was that the spring-beans4.3.13.RELEASE.jar is installed to org/springframeword/spring-beans/4.3.13.RELEASE but the app looks for BeanUtils in org/springframework/beans/BeanUtils. There must be some version incompatability right?
I recently start to develop a web application with spring-boot, anf, following the guide in the offical site, manage to create this two files:
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>spring</groupId>
<artifactId>app</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>app</name>
<url>http://maven.apache.org</url>
<properties>
<start-class>com.spring.app.Application</start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.8.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
</project>
Application.java
#Configuration
#EnableAutoConfiguration
#ComponentScan
public class Application {
public static void main(String[] args) {
ApplicationContext ctx = SpringApplication.run(Application.class, args);
System.out.println("Let's inspect the beans provided by Spring Boot:");
String[] beanNames = ctx.getBeanDefinitionNames();
Arrays.sort(beanNames);
for (String beanName : beanNames) {
System.out.println(beanName);
}
}
}
but when I try run the application with java -jar appname i get the error: Cannot find the main class: com.spring.app.Application. Program will exit, and in the terminal: Exception in thread "main" java.lang.NoClassDefFoundError: com/spring/app/Application.
What I am doing wrong?
You have 2 things to do in your pom.xml.
First change the start-class to your application class.
Second add the super-cool Spring Boot maven builder to your pom.
Something like this:
<?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.sample</groupId>
<artifactId>beanlist</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<start-class>com.sample.Application</start-class>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.1.8.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project
Then use "mvn install" to create your jar. Your code runs just fine.
Value of the following tag should be changed to match real class with main method. Try to specify correct package and run "mvn install"
<start-class>com.sample.Application</start-class>
you Application is in this package:
package com.spring.app;
which means your Application full path should be package com.spring.app.Application and your error code said com.spring.Application not found.
Maybe you should check your run configuration
I was also getting same error. Its got resolved by converting the project to maven in eclipse as mentioned in below image:
Hope it will you. :)