（转）idea不存在Servlet选项？更新.iml文件

在 新建Servlet步骤里，右键java源代码目录，无法看到Servlet选型，是因为.iml文件有问题。

1. 在IDEA中打开.iml文件
2. 添加如图所示的代码，或者复制此处代码覆盖j2ee.iml文件
3. 菜单-File->Close Project
4. 重新打开项目，就能够看到 新建Servlet步骤截图里的Servlet选项了

代码比较复制代码

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

<? xml  version = "1.0"  encoding = "UTF-8" ?> < module  org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule = "true"  type = "JAVA_MODULE"  version = "4" >    < component  name = "FacetManager" >      < facet  type = "web"  name = "Web" >        < configuration >          < descriptors >            < deploymentDescriptor  name = "web.xml"  url = "file://$MODULE_DIR$/src/main/webapp/WEB-INF/web.xml"  />          </ descriptors >          < webroots >            < root  url = "file://$MODULE_DIR$/src/main/webapp"  relative = "/"  />          </ webroots >          < sourceRoots >            < root  url = "file://$MODULE_DIR$/src/main/resources"  />            < root  url = "file://$MODULE_DIR$/src/main/java"  />          </ sourceRoots >        </ configuration >      </ facet >    </ component >    < component  name = "NewModuleRootManager"  LANGUAGE_LEVEL = "JDK_1_5" >      < output  url = "file://$MODULE_DIR$/target/classes"  />      < output-test  url = "file://$MODULE_DIR$/target/test-classes"  />      < content  url = "file://$MODULE_DIR$" >        < sourceFolder  url = "file://$MODULE_DIR$/src/main/resources"  type = "java-resource"  />        < sourceFolder  url = "file://$MODULE_DIR$/src/main/java"  isTestSource = "false"  />        < excludeFolder  url = "file://$MODULE_DIR$/target"  />      </ content >      < orderEntry  type = "inheritedJdk"  />      < orderEntry  type = "sourceFolder"  forTests = "false"  />      < orderEntry  type = "library"  scope = "TEST"  name = "Maven: junit:junit:3.8.1"  level = "project"  />    </ component > </ module >

出自：http://how2j.cn/k/idea/idea-maven-web/1356.html#nowhere