文件结构说明:
项目构建生命周期:
清理
编译
測试
打包
执行
部署
清理与编译
hello\pom.xml
POM:Project Object Model,项目对象模型
pom.xml与ant的build.xml类似
<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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo.hello</groupId>
<artifactId>hello-world</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>hello</name>
</project>
说明:
modelVersion:指定当前POM模型的版本号,Maven2及Maven3仅仅能是4.0.0
groupId:项目组名称
artifactId:当前Maven项目在组中的唯一的id
version:版本号
hello\src\main\java下的Hello.java
package com.demo ;
public class Hello {
public void sayHi(){
System.out.println("hello world");
}
public static void main(String [] args){
new Hello().sayHi();
}
}执行清理及编译命令:
进入hello的目录路径,执行
mvn clean compile执行结果
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查看target目录的内容
查看本地仓库
測试:
hello\pom.xml
<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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo.hello</groupId>
<artifactId>hello-world</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>hello</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>dependencies:指明这个项目所须要的依赖包
hello\src\test\java\HelloTest.java
package com.demo; import org.junit.Test; public class HelloTest {
@Test
public void testHello(){
new Hello().sayHi();
}
}执行測试命令
mvn clean test查看结果
查看本地仓库
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打包
执行命令
mvn clean package
查看结果
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执行
又一次改造pom.xml,增加插件
pom.xml
<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">
<modelVersion>4.0.0</modelVersion>
<groupId>com.demo.hello</groupId>
<artifactId>hello-world</artifactId>
<version>1.0.0-SNAPSHOT</version>
<name>hello</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties> <dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
</dependencies> <build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.5</source>
<target>1.5</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.2.1</version>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>com.demo.Hello</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>又一次执行打包命令:
mvn clean package执行完成后,进入hello/target下,执行命令
java -jar hello-world-1.0.0-SNAPSHOT.jar查看结果:
安装到本地仓库,供其他项目依赖
执行命令
mvn clean install查看本地仓库
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