Maven 的 HelloWorld

 <?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">
     <!--POM 版本类型-->
     <modelVersion>4.0.0</modelVersion>
     <!--组-->
     <groupId>org.zln.maven</groupId>
     <!--组中 id-->
     <artifactId>hello-world</artifactId>
     <!--版本-->
     <version>1.0-SNAPSHOT</version>
     <!--打包结果,默认 jar-->
     <packaging>jar</packaging>
     <!--更友好的项目名称-->
     <name>Maven Hello World Project</name>

     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>

     <!--设置依赖-->
     <dependencies>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
             <version>4.12</version>
         </dependency>
     </dependencies>

     <build>
         <plugins>
             <!-- 资源文件拷贝插件 -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-resources-plugin</artifactId>
                 <version>2.7</version>
                 <configuration>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
             <!-- java编译插件 -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.2</version>
                 <configuration>
                     <source>1.8</source>
                     <target>1.8</target>
                     <encoding>UTF-8</encoding>
                 </configuration>
             </plugin>
             <!--指定 main 方法-->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
                 <version>3.0.2</version>
                 <configuration>
                     <archive>
                         <manifest>
                             <addClasspath>true</addClasspath>
                             <mainClass>org.zln.maven.helloworld.HelloWorld</mainClass>
                         </manifest>
                     </archive>
                 </configuration>
             </plugin>
         </plugins>
     </build>

 </project>

测试：mvn clean test

打包：mvn clean package