java.lang.ClassNotFoundException:org.springframework.boot.SpringApplication with maven jar插件_Java_Spring_Maven_Spring Mvc

java.lang.ClassNotFoundException:org.springframework.boot.SpringApplication with maven jar插件

java spring maven spring-mvc

java.lang.ClassNotFoundException:org.springframework.boot.SpringApplication with maven jar插件,java,spring,maven,spring-mvc,Java,Spring,Maven,Spring Mvc,我对Spring和Maven是新手。我试图运行一个简单应用程序的jar，但收到以下错误： java -jar target/gs-rest-service-0.0.1-SNAPSHOT.jar Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication at hello.Application.main(Application.java:10

我对Spring和Maven是新手。我试图运行一个简单应用程序的jar，但收到以下错误：

java -jar target/gs-rest-service-0.0.1-SNAPSHOT.jar 
Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/boot/SpringApplication
    at hello.Application.main(Application.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:335)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 1 more

这是pom.xml文件：

<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>gs-rest-service</groupId>
  <artifactId>gs-rest-service</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>MyApp</name>
  <build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <archive>
                    <manifest>
                        <mainClass>hello.Application</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>
    </plugins>
  </build>
  <dependencies>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.3.10.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot</artifactId>
        <version>1.5.5.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-autoconfigure</artifactId>
        <version>1.5.5.RELEASE</version>
    </dependency>
  </dependencies>
</project>

我还可以看到org.springframework.boot.SpringApplication恰好位于Maven依赖项库中它应该位于的位置。所以我不确定是什么导致了这个错误

有什么想法吗？

为maven添加spring引导插件

<plugin>
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-maven-plugin</artifactId>
</plugin>


org.springframework.boot
springbootmaven插件

您可以尝试将

maven-jar-plugin

的版本升级到

3.0.2

和

<project>
  ...
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        <version>3.0.2</version>
        <configuration>
          <archive>
            <manifestFile>${project.build.outputDirectory}/META-INF/MANIFEST.MF</manifestFile>
          </archive>
        </configuration>
        ...
      </plugin>
    </plugins>
  </build>
  ...
</project>


...
org.apache.maven.plugins
stackoverflow链接，问题由soemirno
提供，您可以从中获得专家对此问题的合适答案。
请尝试以下pom：-
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
</parent>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- tag::actuator[] -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <!-- end::actuator[] -->
    <!-- tag::tests[] -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- end::tests[] -->
</dependencies>


org.springframework.boot
spring启动程序父级
1.5.3.1发布
org.springframework.boot
SpringBootStarterWeb
org.springframework.boot
弹簧靴起动器执行器
org.springframework.boot
弹簧起动试验
测试
复制和粘贴指南中准确的pom.xml，使其工作：


4.0.0
org.springframework
gs休息服务
0.1.0
org.springframework.boot
spring启动程序父级
1.5.5.1发布
org.springframework.boot
SpringBootStarterWeb
org.springframework.boot
弹簧起动试验
测试
com.jayway.jsonpath
json路径
测试
1.8
org.springframework.boot
springbootmaven插件
春假
https://repo.spring.io/libs-release
春假
https://repo.spring.io/libs-release
此问题是由于您的maven本地存储库存在spring boot maven依赖项问题造成的
尝试删除spring启动依赖项的本地maven存储库
{mvn_repo}\repository\org\springframework\boot-仅删除启动依赖项
从命令行
mvn-U安装

mvn spring启动：运行

希望这有帮助
<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.5.3.RELEASE</version>
</parent>

<dependencies>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- tag::actuator[] -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
    <!-- end::actuator[] -->
    <!-- tag::tests[] -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-test</artifactId>
        <scope>test</scope>
    </dependency>
    <!-- end::tests[] -->
</dependencies>

<?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.springframework</groupId>
    <artifactId>gs-rest-service</artifactId>
    <version>0.1.0</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.5.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-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.jayway.jsonpath</groupId>
            <artifactId>json-path</artifactId>
            <scope>test</scope>
        </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>

    <repositories>
        <repository>
            <id>spring-releases</id>
            <url>https://repo.spring.io/libs-release</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-releases</id>
            <url>https://repo.spring.io/libs-release</url>
        </pluginRepository>
    </pluginRepositories>
</project>