maven 三个基本插件 clean dependency compiler

<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.zzz</groupId>
  <artifactId>zzzz-core</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>zzzz-core</name>
  <url>http://maven.apache.org</url>

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

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  
  <build>
  
      <outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory><!-- 这句必须写，否则没有编译后存放class的地方 -->
      <resources><!-- 如果java包里面还有一些xml文件也需要放入classes文件中 --><!--使用resources 方法导致xml 文件无法编辑，所以不建议使用，改用 maven resources插件，见下-->
          <resource>
              <directory>src/main/java</directory>
              <includes>
                  <include>**/*.xml</include>
              </includes>
              <filtering>true</filtering>
          </resource>
      </resources>
      <plugins>
      
          <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-dependency-plugin</artifactId>
            <version>2.1</version>
            <executions>
                <execution>
                    <phase>compile</phase>
                    <goals>
                        <goal>copy-dependencies</goal>
                    </goals>
                    <configuration>
                        <outputDirectory>src/main/webapp/WEB-INF/lib</outputDirectory>
                    </configuration>
                </execution>
            </executions>
        </plugin>
        
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-clean-plugin</artifactId>
            <version>2.4.1</version>
            <configuration>
                <filesets>
                    <fileset>
                        <directory>src/main/webapp/WEB-INF/lib</directory>
                        <followSymlinks>false</followSymlinks>                        
                    </fileset>
                </filesets>
            </configuration>
        </plugin>
        
        
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>2.3.2</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
                <encoding>UTF-8</encoding>
            </configuration>
        </plugin>
      
      
      
          <plugin>
            <groupId>org.mybatis.generator</groupId>
            <artifactId>mybatis-generator-maven-plugin</artifactId>
            <version>1.3.2</version>
            <configuration>
                <configurationFile>src/main/resources/generatorConfig.xml</configurationFile>
                <verbose>true</verbose>
                <overwrite>true</overwrite>
            </configuration>
            <executions>
                <execution>
                    <id>Generate MyBatis Artifacts</id>
                    <goals>
                        <goal>generate</goal>
                    </goals>
                </execution>
            </executions>
            <dependencies>
                <dependency>
                    <groupId>org.mybatis.generator</groupId>
                    <artifactId>mybatis-generator-core</artifactId>
                    <version>1.3.2</version>
                </dependency>
                <dependency>
                <groupId>mysql</groupId>
                    <artifactId>mysql-connector-java</artifactId>
                    <version>5.1.30</version>
                    <scope>runtime</scope>
                </dependency>
            </dependencies>
        </plugin>
        
        
        
      </plugins>
  </build>
  
  
</project>

<plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>2.5</version>
              <executions>
                <execution>
                  <id>copy-resources</id>
                  <phase>validate</phase>
                  <goals>
                    <goal>copy-resources</goal>
                 </goals>
                <configuration>
                   <outputDirectory>src/main/webapp/WEB-INF/classes</outputDirectory>
                   <resources>          
                     <resource>
                       <directory>src/main/java</directory>
                    <includes>
                        <include>**/*.xml</include>
                    </includes>
                       <filtering>true</filtering>
                     </resource>
                   </resources>              
                 </configuration>            
               </execution>
             </executions>
           </plugin>