方式1、修改maven全局jdk

 修改 安裝目錄/maven2/conf/settings.xml

    <PRofile>       	<id>jdk-1.7</id>       	<activation>       	     <activeByDefault>true</activeByDefault>       	     <jdk>1.7</jdk>       	</activation>       	<properties>       	     <maven.compiler.source>1.7</maven.compiler.source>       	     <maven.compiler.target>1.7</maven.compiler.target>       	     <maven.compiler.compilerVersion>1.7</maven.compiler.compilerVersion>       	</properties>           </profile>     
  方式2、修改項目pom.xml
<build>      <plugins>          <plugin>              <groupId>org.apache.maven.plugins</groupId>              <artifactId>maven-compiler-plugin</artifactId>              <version>2.0.2</version>              <configuration>                  <source>1.6</source>                  <target>1.6</target>              </configuration>          </plugin>      </plugins>  </build>