使用Maven生成manifest

使用maven的maven-jar-plugin插件可以生成manifest文件，同时把依赖的jar写入manifest.

 <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-jar-plugin</artifactId>
        ...
        <configuration>
          <archive>
            <manifest>
              <addClasspath>true</addClasspath>
            </manifest>
          </archive>
        </configuration>
        ...
      </plugin>
    </plugins>
  </build>
  ...
  <dependencies>
    <dependency>
      <groupId>commons-lang</groupId>
      <artifactId>commons-lang</artifactId>
      <version>2.1</version>
    </dependency>
    <dependency>
      <groupId>org.codehaus.plexus</groupId>
      <artifactId>plexus-utils</artifactId>
      <version>1.1</version>
    </dependency>
  </dependencies>

build后生成的manifest文件将包含以下信息

Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven
Built-By: ${user.name}
Build-Jdk: ${java.version}
Class-Path: plexus-utils-1.1.jar commons-lang-2.1.jar

想生成可以执行的jar包，可以在<manifest></manifest>加入
 <mainClass>fully.qualified.MainClass</mainClass>

即把程序入口(含main方法的类)添加进manifest中

build后manifest文件信息

Manifest-Version: 1.0
Archiver-Version: Plexus Archiver
Created-By: Apache Maven
Built-By: ${user.name}
Build-Jdk: ${java.version}
Main-Class: fully.qualified.MainClass
Class-Path: plexus-utils-1.1.jar commons-lang-2.1.jar

可以使用java -jar  jarname    执行jar包