Eclipse Maven 编译错误 Dynamic Web Module 3.0 requires Java 1.6 or newer 解决方案 (特别注意))
2017-08-29 21:20
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Eclipse Maven 开发一个 jee 项目时,编译时遇到以下错误:
Description Resource
Path Location
Type
Dynamic Web Module 3.0 requires Java 1.6 or newer.
bdp line 1
Maven Java EE Configuration Problem
Description Resource
Path Location
Type
One or more constraints have not been satisfied.
bdp line 1
Maven Java EE Configuration Problem
如图:
但是 Eclipse 明明已经将编译级别设置为 1.7:
这是由于你的 Maven 编译级别是 jdk1.5 或以下,而你导入了 jdk1.6 以上的依赖包:查看 Eclipse 的 Navigator 视图下该项目的 .classpath 文件:
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
解决办法:
使用 maven-compiler-plugin 将 maven 编译级别改为 jdk1.6 以上:
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<build>
<plugins>
4000
<!-- define the project compile level -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
参考资料
http://stackoverflow.com/questions/12857535/eclipse-maven-update-causes-corruption-of-jvm-setting
http://stackoverflow.com/questions/5783338/what-is-the-use-of-org-eclipse-jdt-launching-jre-container-in-eclipse
Description Resource
Path Location
Type
Dynamic Web Module 3.0 requires Java 1.6 or newer.
bdp line 1
Maven Java EE Configuration Problem
Description Resource
Path Location
Type
One or more constraints have not been satisfied.
bdp line 1
Maven Java EE Configuration Problem
如图:
但是 Eclipse 明明已经将编译级别设置为 1.7:
这是由于你的 Maven 编译级别是 jdk1.5 或以下,而你导入了 jdk1.6 以上的依赖包:查看 Eclipse 的 Navigator 视图下该项目的 .classpath 文件:
[html]
view plain
copy
print?
<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5">
<attributes>
<attribute name="maven.pomderived" value="true"/>
</attributes>
</classpathentry>
解决办法:
使用 maven-compiler-plugin 将 maven 编译级别改为 jdk1.6 以上:
[html]
view plain
copy
print?
<build>
<plugins>
4000
<!-- define the project compile level -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
参考资料
http://stackoverflow.com/questions/12857535/eclipse-maven-update-causes-corruption-of-jvm-setting
http://stackoverflow.com/questions/5783338/what-is-the-use-of-org-eclipse-jdt-launching-jre-container-in-eclipse
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