如何借助IDEA快速生成可执行jar包


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缘由:

近期由于工作需要,又打开了电脑上沉睡已久的IDEA编辑器,写一些简单的Java代码做联通和功能性验证,在验证的时候除了直接在IDEA里运行之外,还需要将文件放到IDC服务器上面去跑(在生产环境中进行验证),这时就需要生成可执行jar包了,之前也操作过,但用的不多所以总忘,这次趁机整理一下,方便以后需要的时候进行参考。

正文:

参考解答:
方法一:除了IDEA不用额外依赖

ps: 没有提到的地方就是默认选择,直接点击next就行。

  1. 打开 Artifacts 工具

File -> Project Structure -> Project Settings -> Artifacts -> Click plus sign(点击+号按钮) -> Jar -> From modules with dependencies…(胖包)

  1. 进入打包界面,设置主类和文件保存位置

Main Class
JAR Files from libraries: extract to the target JAR

  1. Build-构建

Build -> Build Artifacts -> 选择刚才创建的Artifact -> Build

  1. 找到刚才编译构建出的文件

ProjectName | out | artifacts | ProjectName_jar | ProjectName.jar

方法二:借助Maven插件
  1. 在pom.xml中添加相关插件的Maven依赖
<!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-compiler-plugin -->
<dependency>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>3.10.0</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.apache.maven.plugins/maven-assembly-plugin -->
<dependency>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-assembly-plugin</artifactId>
    <version>3.3.0</version>
</dependency>
  1. 在pom.xml中的插件部分添加相关插件
<!-- 注意:插入在build下,而非pluginManagement下 -->
  <plugins>
    <plugin>
      <artifactId>maven-compiler-plugin</artifactId>
      <version>3.10.0</version>
      <configuration> <!--这里的版本可以注释掉,也可以按照自己的实际环境进行填写-->
        <source>1.8</source>
        <target>1.8</target>
      </configuration>
    </plugin>

    <plugin>
      <artifactId>maven-assembly-plugin</artifactId>
      <configuration>
        <descriptorRefs>
          <descriptorRef>fatjar</descriptorRef> <!--这部分内容会体现在生成的jar包文件名上-->
        </descriptorRefs>
        <archive>
          <manifest>
            <mainClass>com.example.TestMySQL</mainClass> <!--这里改成自己的主类位置-->
          </manifest>
        </archive>
      </configuration>
      <executions>
        <execution>
          <id>make-assembly</id>
          <phase>package</phase>
          <goals>
            <goal>single</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
  </plugins>
  1. 在右侧的Maven工具中进行package打包

Maven -> Lifecycle -> package

  1. 找到刚才生成的jar包

在target文件夹中。

参考链接:

How to build jars from IntelliJ properly? #verified,纯文字版,对新手来说没那么友好,但胜在简单直接
https://stackoverflow.com/questions/1082580/how-to-build-jars-from-intellij-properly

IDEA导出可执行jar包 #verified
https://blog.csdn.net/ouyang111222/article/details/73105086

IDEA系列:idea打包生成可执行jar包
https://blog.51cto.com/NIO4444/3842569

idea打包java可执行jar包
https://www.cnblogs.com/blog5277/p/5920560.html

IDEA中如何正确快速打jar包(包括瘦包、胖包) #verified
https://blog.csdn.net/qq_41704237/article/details/107032965

打胖瘦jar包的两种方式(idea与maven插件),多图详解 #verified
https://blog.csdn.net/qq_45363033/article/details/106639601

How can I create an executable JAR with dependencies using Maven?
https://stackoverflow.com/questions/574594/how-can-i-create-an-executable-jar-with-dependencies-using-maven

Can’t execute jar- file: “no main manifest attribute”
https://stackoverflow.com/questions/9689793/cant-execute-jar-file-no-main-manifest-attribute

Apache Maven Assembly Plugin
https://maven.apache.org/plugins/maven-assembly-plugin/index.html
https://maven.apache.org/plugins/maven-assembly-plugin/examples/sharing-descriptors.html

maven带依赖打包成jar
https://blog.51cto.com/u_15119353/3303718

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《“如何借助IDEA快速生成可执行jar包”》 有 1 条评论

  1. How to run a class from Jar which is not the Main-Class in its Manifest file
    https://stackoverflow.com/questions/5474666/how-to-run-a-class-from-jar-which-is-not-the-main-class-in-its-manifest-file
    `
    Execute Main-Class:
    $ java -jar MyJar.jar // will execute the Main-Class

    Execute another class with a public static void main method:
    $ java -cp MyJar.jar com.mycomp.myproj.AnotherClassWithMainMethod

    Note: the first uses -jar, the second uses -cp.
    `

    Run a Java Application from the Command Line
    https://www.baeldung.com/java-run-jar-with-arguments

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