<pluginManagement>	
         <plugin>
					<groupId>org.apache.maven.plugins</groupId>
					<artifactId>maven-compiler-plugin</artifactId>
					<configuration>
						<source>1.6</source>
						<target>1.6</target>
					</configuration>
				</plugin>
				<plugin>
					<groupId>org.eclipse.m2e</groupId>
					<artifactId>lifecycle-mapping</artifactId>
					<version>1.0.0</version>
					<configuration>
						<lifecycleMappingMetadata>
							<pluginExecutions>
								<pluginExecution>
									<pluginExecutionFilter>
										<groupId>org.apache.maven.plugins</groupId>
										<artifactId>maven-dependency-plugin</artifactId>
										<versionRange>[2.0,)</versionRange>
										<goals>
											<goal>copy-dependencies</goal>
										</goals>
									</pluginExecutionFilter>
									<action>
										<ignore />
									</action>
								</pluginExecution>
							</pluginExecutions>
						</lifecycleMappingMetadata>
					</configuration>
				</plugin>
			</plugins>
		</pluginManagement>

	<plugins>
			<!-- remove jar plugins -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-clean-plugin</artifactId>
				<executions>
					<execution>
						<id>clean</id>
						<phase>install</phase>
						<goals>
							<goal>clean</goal>
						</goals>
						<configuration>
							<directory>/src/main/webapp/WEB-INF/lib</directory>
						</configuration>
					</execution>
				</executions>
			</plugin>

			<!-- copy jar plugins -->
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-dependency-plugin</artifactId>
				<executions>
					<execution>
						<id>copy-dependencies</id>
						<phase>package</phase>
						<goals>
							<goal>copy-dependencies</goal>
						</goals>
						<configuration>
							<outputDirectory>src/main/webapp/WEB-INF/lib</outputDirectory>
							<excludeTransitive>false</excludeTransitive>
							<stripVersion>false</stripVersion>  <!-- 复制jar 的时候去掉版本信息 true : 去掉 false： 不去掉 -->
							<includeScope>runtime</includeScope>
						</configuration>
					</execution>
				</executions>
			</plugin>