Maven工程产生Jar时Main-Class和Class-Path的配置文件

写这篇博客主要是为了自己以后能快速的查到。

 

在pom.xml文件的project节点中加入以下build内容：

 

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1. <build>  
2.     <plugins>  
3.         <plugin>  
4.             <groupId>org.apache.maven.plugins</groupId>  
5.             <artifactId>maven-jar-plugin</artifactId>  
6.             <version>2.3.2</version>  
7.             <configuration>  
8.                 <archive>  
9.                     <manifest>  
10.                         <!--change addClasspath to true if daks is desktop version-->  
11.                         <addClasspath>true</addClasspath>  
12.                         <classpathPrefix>lib/</classpathPrefix>  
13.                         <mainClass>com.daks.timesheethelper.App</mainClass>  
14.                         <addDefaultImplementationEntries>true</addDefaultImplementationEntries>  
15.                         <addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>  
16.                     </manifest>  
17.                     <manifestEntries>  
18.                         <Permissions>${Permissions}</Permissions>  
19.                         <Caller-Allowable-Codebase>${Caller-Allowable-Codebase}</Caller-Allowable-Codebase>  
20.                     </manifestEntries>  
21.                 </archive>  
22.             </configuration>  
23.         </plugin>  
24.         <plugin>  
25.             <groupId>org.apache.maven.plugins</groupId>  
26.             <artifactId>maven-dependency-plugin</artifactId>  
27.             <version>2.3</version>  
28.             <executions>  
29.                 <execution>  
30.                     <id>copy-dependencies</id>  
31.                     <phase>package</phase>  
32.                     <configuration>  
33.                         <overWriteReleases>false</overWriteReleases>  
34.                         <overWriteSnapshots>false</overWriteSnapshots>  
35.                         <overWriteIfNewer>true</overWriteIfNewer>  
36.                         <outputDirectory>  
37.                             ${project.build.directory}/lib  
38.                         </outputDirectory>  
39.                     </configuration>  
40.                     <goals>  
41.                         <goal>copy-dependencies</goal>  
42.                     </goals>  
43.                 </execution>  
44.             </executions>  
45.         </plugin>  
46.     </plugins>  
47. </build>  

 

最终的效果就是在target下多出一个lib目录，里面包含项目使用到的一些第三方的jar，或者自己的其他工程的jar，然后主jar包的MF文件中多了Main-Class和Class-Path的配置信息，这是保证该jar包可执行的条件。

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Xml代码  

1. <configuration>  
2.  <archive>  
3.   <manifest>  
4.    <mainClass>com.dongwei.test.Main</mainClass>  
5.    <addClasspath>true</addClasspath>  
6.    <classpathPrefix>lib/</classpathPrefix>  
7.   </manifest>  
8.   <manifestEntries>  
9.    <Class-Path>.</Class-Path>  
10.   </manifestEntries>  
11.  </archive>  
12. </configuration>   

 由于某些原因，如果maven生成的MANIFEST.MF中的Class-Path的内容缺少一些内容，比如当前执行目录(.)，那么可以通过上面manifestEntries的方式增加进来，增加后的效果：

Java代码  

1. Manifest-Version: 1.0  
2. Archiver-Version: Plexus Archiver  
3. Created-By: Apache Maven  
4. Built-By: wei.dong  
5. Build-Jdk: 1.6.0_24  
6. Main-Class: com.dongwei.test.Main  
7. Class-Path: . lib/spring-core-3.0.5.RELEASE.jar lib/spring-asm-3.0.5.R  
8.  ELEASE.jar lib/commons-logging-1.1.1.jar lib/spring-context-3.0.5.REL  
9.  EASE.jar lib/spring-aop-3.0.5.RELEASE.jar lib/aopalliance-1.0.jar lib  
10.  /spring-expression-3.0.5.RELEASE.jar lib/spring-context-support-3.0.5  
11.  .RELEASE.jar lib/spring-beans-3.0.5.RELEASE.jar lib/spring-jdbc-3.0.5  
12.  .RELEASE.jar lib/spring-tx-3.0.5.RELEASE.jar lib/log4j-1.2.14.jar lib  
13.  /slf4j-nop-1.4.3.jar lib/slf4j-api-1.4.3.jar lib/commons-lang-2.5.jar  
14.   lib/commons-dbcp-1.2.2.jar lib/commons-pool-1.3.jar lib/commons-io-1  
15.  .4.jar lib/commons-digester-2.0.jar lib/commons-beanutils-1.8.0.jar l  
16.  ib/commons-configuration-1.6.jar lib/commons-collections-3.2.1.jar li  
17.  b/commons-beanutils-core-1.8.0.jar lib/quartz-1.8.4.jar lib/jta-1.1.j  
18.  ar lib/mysql-connector-java-5.1.12.jar