maven配置文件中修改默认jre

方法一：打开%maven_home%\conf\setting.xml,只会在新建项目时自动使用1.6的导入项目不会

在<profiles>标签内添加如下配置：

<profile>

 <id>jdk-1.8</id>

 <activation>

  <activeByDefault>true</activeByDefault>

  <jdk>1.8</jdk>

 </activation>

 <properties>

  <maven.compiler.source>1.8</maven.compiler.source>

  <maven.compiler.target>1.8</maven.compiler.target>

  <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>

 </properties>

</profile>

方法二：不同的项目使用不同的jre，pom.xml里添加如下配置

导入项目可以这样配置然后进行maven project update：

<build>

    <plugins>

        <plugin>

            <groupId>org.apache.maven.plugins</groupId>

            <artifactId>maven-compiler-plugin</artifactId>

            <configuration>

                <source>1.8</source>

                <target>1.8</target>

            </configuration>

        </plugin>

    </plugins>

</build>

修正maven-dependency-plugin不支持m2e的问题：

<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings only. It has no influence on the Maven build itself.-->
<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>unpack</goal>
</goals>
</pluginExecutionFilter>
<action>
<ignore></ignore>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>