http 错误

运行是网页出现404 有可能是因为

 1)  , 在 eclipse 中 server > add and remove

 2)   ,  http://stackoverflow.com/questions/16340711/tomcat-http-status-404

1. 1. 1. 　
         1. Click on Window > Show view > Server OR right click on the server in "Servers" view, select "Properties".
         2. In the "General" panel, click on the "Switch Location" button.
         3. The "Location: [workspace metadata]" should replace by something else.
         4. Open the Overview screen for the server by double clicking it.
         5. In the Server locations tab , select "Use Tomcat location".
         6. Save the configurations and restart the Server.

         You may want to follow the steps above before starting the server. Because server location section goes grayed-unreachable.

         

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原文：http://www.cnblogs.com/xun99/p/3569274.html