maven无法自动产生.classpath文件
在导入maven工程时，eclipse无法自动产生.classpath文件，原因是因为pom.xml里配了以下的代码：
<pluginManagement><plugins><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-compiler-plugin</artifactId><versionRange>[2.0,)</versionRange><goals><goal>compile</goal><goal>testCompile</goal></goals></pluginExecutionFilter><action><ignore /></action></pluginExecution></pluginExecutions></lifecycleMappingMetadata></configuration></plugin></plugins></pluginManagement>
