Eclipse + Maven：强制执行环境“JavaSE-1.6”而不是固定的 JDK
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Eclipse + Maven: force Execution Environment "JavaSE-1.6" instead of fixed JDK
提问by sjngm
I'm using Eclipse as IDE and Maven outside of it to keep all dependencies up to date and update the Eclipse-project as such. In Eclipse I usually specify the JRE system library as an execution environment for any Java-project, usually "JavaSE-1.6".
我使用 Eclipse 作为 IDE，在它之外使用 Maven 以保持所有依赖项最新并更新 Eclipse 项目。在 Eclipse 中，我通常指定 JRE 系统库作为任何 Java 项目的执行环境，通常是“JavaSE-1.6”。
In the pom.xml I use the following lines:
在 pom.xml 中，我使用以下几行：
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.8</version>
<configuration>
<projectNameTemplate>[groupId].[artifactId]</projectNameTemplate>
<downloadJavadocs>true</downloadJavadocs>
<wtpversion>2.0</wtpversion>
</configuration>
</plugin>
This seems to let Maven pick a JDK matching 1.6. It assigns its system libraries to the classpath of the project. However, it uses jdk1.6.20 directly rather than JavaSE-1.6.
这似乎让 Maven 选择了匹配 1.6 的 JDK。它将其系统库分配给项目的类路径。但是，它直接使用 jdk1.6.20 而不是 JavaSE-1.6。
Is there a way to make Maven use JavaSE-1.6 instead?
有没有办法让 Maven 改用 JavaSE-1.6？
EDIT: Here's the batch file that I use to run Maven:
编辑：这是我用来运行 Maven 的批处理文件：
SET JAVA_HOME=C:\Programme\java\jdk1.6.0_20
SET MAVEN_HOME=C:\Programme\apache-maven-2.2.1
SET MAVEN_OPTS=-Xmx512m -XX:MaxPermSize=128m
SET PATH=%JAVA_HOME%\bin;%MAVEN_HOME%\bin;%PATH%
SET EXTRA_MVN_OPTS=-Dmaven.test.skip=true
CD /D "%~dp0"
cmd /c mvn %EXTRA_MVN_OPTS% eclipse:clean eclipse:eclipse
cmd /c mvn %EXTRA_MVN_OPTS% clean install
回答by Sean Patrick Floyd
You can do it by setting a classpath container.
您可以通过设置类路径容器来实现。
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.8</version>
<configuration>
<classpathContainers>
<classpathContainer>
org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6
</classpathContainer>
</classpathContainers>
</configuration>
</plugin>
Reference:
参考：
回答by Dave G
Go into Window > Preferences > Java > Installed JREs > Execution Environments
进入 Window > Preferences > Java > Installed JREs > Execution Environments
Select JavaSE-1.6, click the checkbox on the right that should indicate "perfect match"
选择 JavaSE-1.6，单击右侧的复选框，应指示“完美匹配”
then use "update project configuration" from the maven menu.
然后使用 Maven 菜单中的“更新项目配置”。
回答by Raghuram
Since you are using mavenand eclipse, perhaps you should use M2Eclipseplugin. The maven project (built by maven by setting JAVA_HOME=C:\Program Files\Java\jdk1.6.0_23) imported in Eclipse, shows up with JRE System Libraryas JavaSE-1.6
由于您正在使用mavenand eclipse，也许您应该使用M2Eclipse插件。JAVA_HOME=C:\Program Files\Java\jdk1.6.0_23在 Eclipse 中导入的 maven 项目（由 maven 通过 setting 构建）显示JRE System Library为JavaSE-1.6
