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Java 如何修复'；[警告]JAR将为空-未标记要包含的内容'；

java spring-boot maven intellij-idea

Java 如何修复'；[警告]JAR将为空-未标记要包含的内容'；,java,spring-boot,maven,intellij-idea,Java,Spring Boot,Maven,Intellij Idea,我正在尝试构建并运行springboot应用程序，但在运行“mvn clean install”命令时，仍会遇到上述错误。不过，构建仍然是成功的 我现在尝试了很多不同的方法，但都没有成功。我真的看不出有什么问题。我应该补充一点，我对Java和Maven非常陌生 以下是我运行mvn clean install时的警告： [INFO] --- maven-jar-plugin:3.2.0:jar (default-jar) @ finalproject --- [WARNING] JAR will

我正在尝试构建并运行springboot应用程序，但在运行“mvn clean install”命令时，仍会遇到上述错误。不过，构建仍然是成功的

我现在尝试了很多不同的方法，但都没有成功。我真的看不出有什么问题。我应该补充一点，我对Java和Maven非常陌生

以下是我运行mvn clean install时的警告：

[INFO] --- maven-jar-plugin:3.2.0:jar (default-jar) @ finalproject ---
[WARNING] JAR will be empty - no content was marked for inclusion!
[INFO] Building jar: /home/qa/Projects/Final-Project/backend/src/target/finalproject.jar
[INFO] 
[INFO] --- spring-boot-maven-plugin:2.3.5.RELEASE:repackage (repackage) @ finalproject ---
[INFO] Replacing main artifact with repackaged archive
[INFO] 
[INFO] --- maven-install-plugin:2.5.2:install (default-install) @ finalproject ---
[INFO] Installing /home/qa/Projects/Final-Project/backend/src/target/finalproject.jar to /home/qa/.m2/repository/com/qa/finalproject/0.0.1-SNAPSHOT/finalproject-0.0.1-SNAPSHOT.jar
[INFO] Installing /home/qa/Projects/Final-Project/backend/src/pom.xml to /home/qa/.m2/repository/com/qa/finalproject/0.0.1-SNAPSHOT/finalproject-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  2.311 s
[INFO] Finished at: 2020-11-09T12:16:51Z
[INFO] ------------------------------------------------------------------------
我的pom.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
         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>2.3.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <groupId>com.qa</groupId>
    <artifactId>finalproject</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>
    <name>Final-Project</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>

        <!--
        development only
        -->

        <dependency>
            <groupId>com.h2database</groupId>
            <artifactId>h2</artifactId>
            <scope>runtime</scope>
        </dependency>


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>

<!--        <dependency>-->
<!--            <groupId>javax.xml.bind</groupId>-->
<!--            <artifactId>jaxb-api</artifactId>-->
<!--        </dependency>-->

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-tomcat</artifactId>
            <scope>provided</scope>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
        </dependency>

        <dependency>
            <groupId>org.modelmapper</groupId>
            <artifactId>modelmapper</artifactId>
            <version>2.3.5</version>
        </dependency>

    </dependencies>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.qa.FinalProjectApplication</mainClass>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>3.2.0</version>
            </plugin>

        </plugins>
    </build>

</project>
我在这里真是不知所措。任何帮助都将不胜感激。谢谢

您的文件夹结构错误
Final Project/backend/src/target/
听起来像是您的
pom.xml
在
src
文件夹中。这是错误的。它需要位于
src
文件夹旁边的父目录中。非常感谢您的帮助。我遵循了一个关于对spring应用程序进行dockerizing的教程，它说pom.xml和dockerfile需要在src文件夹中，所以我把它们都放在那里。这个结构是maven文件夹结构，在每个项目中都是一样的。很高兴它现在能工作：）删除maven jar插件定义，同时删除finalName定义…不需要。谢谢提示！ 
[DEBUG] Application argument(s): 
[DEBUG] Environment variable(s): 
Error: Could not find or load main class com.qa.FinalProjectApplication
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  3.079 s
[INFO] Finished at: 2020-11-09T12:22:16Z
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.3.5.RELEASE:run (default-cli) on project finalproject: Application finished with exit code: 1 -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.3.5.RELEASE:run (default-cli) on project finalproject: Application finished with exit code: 1
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:215)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: org.apache.maven.plugin.MojoExecutionException: Application finished with exit code: 1
    at org.springframework.boot.maven.RunMojo.runWithForkedJvm (RunMojo.java:101)
    at org.springframework.boot.maven.AbstractRunMojo.doRunWithForkedJvm (AbstractRunMojo.java:296)
    at org.springframework.boot.maven.AbstractRunMojo.run (AbstractRunMojo.java:261)
    at org.springframework.boot.maven.AbstractRunMojo.execute (AbstractRunMojo.java:233)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:957)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:289)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:193)
    at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:498)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
[ERROR] 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException