Java-Maven（六）：Eclipse中Maven插件的命令操作

　　之前几个章节学习了maven的概念，及maven插件安装后如何创建工程，那么maven工程中是如何使用maven命令呢？本章节将会学习这个话题。

在pom.xml中配置maven命令插件

如果向在maven工程中使用maven命令，就必须在pom.xml文件中配置maven命令插件。接下来基于上一章文章（《Java-Maven（五）：Eclipse&Maven下创建java工程&web工程》）中创建的java web maven工程之上，进行pom.xml下配置安装maven命令插件。

配置之前pom.xml内容如下：

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.dx</groupId>
  <artifactId>maven-web-project01</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>maven-web-project01 Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>maven-web-project01</finalName>
  </build>
</project>

配置之后pom.xml内容如下：

<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/maven-v4_0_0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.dx</groupId>
    <artifactId>maven-web-project01</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>maven-web-project01 Maven Webapp</name>
    <url>http://maven.apache.org</url>
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
    </dependencies>
    <build>
        <finalName>maven-web-project01</finalName>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <!-- 不设置采用最新的插件版本 ，也可以去http://maven.apache.org/components/plugins/maven-compiler-plugin/找自己需要的版本号 -->
                <version>3.1</version>
                <configuration>
                    <!-- 源代码使用的开发版本 -->
                    <source>1.8</source>
                    <!-- 需要生成的目标class文件的编译版本 -->
                    <target>1.8</target>
                    <encoding>UTF-8</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

配置之后，如果在pom.xml上右键-》Run As下包含如下截图内容，就说明安装成功。

在maven工程中执行maven命令：

我们可以基于上边的安装后maven命令插件后，测试体验下Maven install的作用，点击后控制台会打印信息：

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building maven-web-project01 Maven Webapp 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ maven-web-project01 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ maven-web-project01 ---
[INFO] Changes detected - recompiling the module!
[INFO] Compiling 1 source file to D:workspace4maven-web-project01	argetclasses
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ maven-web-project01 ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory D:workspace4maven-web-project01src	est
esources
[INFO] 
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ maven-web-project01 ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ maven-web-project01 ---
[INFO] 
[INFO] --- maven-war-plugin:2.2:war (default-war) @ maven-web-project01 ---
[INFO] Packaging webapp
[INFO] Assembling webapp [maven-web-project01] in [D:workspace4maven-web-project01	argetmaven-web-project01]
[INFO] Processing war project
[INFO] Copying webapp resources [D:workspace4maven-web-project01srcmainwebapp]
[INFO] Webapp assembled in [37 msecs]
[INFO] Building war: D:workspace4maven-web-project01	argetmaven-web-project01.war
[INFO] WEB-INFweb.xml already added, skipping
[INFO] 
[INFO] --- maven-install-plugin:2.4:install (default-install) @ maven-web-project01 ---
[INFO] Installing D:workspace4maven-web-project01	argetmaven-web-project01.war to C:UsersAdministrator.m2
epositorycomdxmaven-web-project010.0.1-SNAPSHOTmaven-web-project01-0.0.1-SNAPSHOT.war
[INFO] Installing D:workspace4maven-web-project01pom.xml to C:UsersAdministrator.m2
epositorycomdxmaven-web-project010.0.1-SNAPSHOTmaven-web-project01-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.263 s
[INFO] Finished at: 2017-06-28T02:16:57+08:00
[INFO] Final Memory: 18M/201M
[INFO] ------------------------------------------------------------------------