myEclipse菜单add hibernate capabilities反灰不可用解决

你如果点中单独一个文件，那么那个选项一直都是反灰，只有你点中整个项目名，那个选项就可用了。

 

不是什么版本问题

用myEclipse搭建hibernate框架后，有时搞乱了某些东西后，又想重新加载Hibernate包，但此时 add hibernate capabilities 功能菜单竟然是灰色的，不可用，尤其是初学的朋友往往要重建web项目，一切都要重新来过。

其实大可不必这么做。有个简单的方法可以解决这个问题：

切换到java的导航试图，在项目的根目录下又个项目配置文件：".project"，打开后如下代码所示。

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<?xml version="1.0" encoding="UTF-8"?>  
<projectDescription>  
    <name>CourseMS</name>  
    <comment></comment>  
    <projects>  
    </projects>  
    <buildSpec>  
        <buildCommand>  
            <name>com.genuitec.eclipse.j2eedt.core.WebClasspathBuilder</name>  
            <arguments>  
            </arguments>  
        </buildCommand>  
        <buildCommand>  
            <name>org.eclipse.jdt.core.javabuilder</name>  
            <arguments>  
            </arguments>  
        </buildCommand>  
        <buildCommand>  
            <name>com.genuitec.eclipse.j2eedt.core.J2EEProjectValidator</name>  
            <arguments>  
            </arguments>  
        </buildCommand>  
        <buildCommand>  
            <name>com.genuitec.eclipse.j2eedt.core.DeploymentDescriptorValidator</name>  
            <arguments>  
            </arguments>  
        </buildCommand>  
        <buildCommand>  
            <name>org.eclipse.wst.validation.validationbuilder</name>  
            <arguments>  
            </arguments>  
        </buildCommand>  
        <buildCommand>  
            <name>com.genuitec.eclipse.hibernate.HibernateBuilder</name>  
            <arguments>  
            </arguments>  
        </buildCommand>  
    </buildSpec>  
    <natures>  
        <nature>com.genuitec.eclipse.hibernate.hibernatenature</nature>  
        <nature>com.genuitec.eclipse.j2eedt.core.webnature</nature>  
        <nature>org.eclipse.jdt.core.javanature</nature>  
        <nature>org.eclipse.wst.jsdt.core.jsNature</nature>  
    </natures>  
</projectDescription> 
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
 <name>CourseMS</name>
 <comment></comment>
 <projects>
 </projects>
 <buildSpec>
  <buildCommand>
   <name>com.genuitec.eclipse.j2eedt.core.WebClasspathBuilder</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>org.eclipse.jdt.core.javabuilder</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>com.genuitec.eclipse.j2eedt.core.J2EEProjectValidator</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>com.genuitec.eclipse.j2eedt.core.DeploymentDescriptorValidator</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>org.eclipse.wst.validation.validationbuilder</name>
   <arguments>
   </arguments>
  </buildCommand>
  <buildCommand>
   <name>com.genuitec.eclipse.hibernate.HibernateBuilder</name>
   <arguments>
   </arguments>
  </buildCommand>
 </buildSpec>
 <natures>
  <nature>com.genuitec.eclipse.hibernate.hibernatenature</nature>
  <nature>com.genuitec.eclipse.j2eedt.core.webnature</nature>
  <nature>org.eclipse.jdt.core.javanature</nature>
  <nature>org.eclipse.wst.jsdt.core.jsNature</nature>
 </natures>
</projectDescription>

一般在最下方有：

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<buildCommand>  
            <name>com.genuitec.eclipse.hibernate.HibernateBuilder</name>  
            <arguments>  
            </arguments>  
        </buildCommand> 
<buildCommand>
   <name>com.genuitec.eclipse.hibernate.HibernateBuilder</name>
   <arguments>
   </arguments>
  </buildCommand>

和

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<nature>com.genuitec.eclipse.hibernate.hibernatenature</nature> 
<nature>com.genuitec.eclipse.hibernate.hibernatenature</nature>

将这两段删除即可