eclipse更改workspace中出现The superclass "javax.servlet.http.HttpServlet" was not found on the Java----问题》》
第一步:那是因为在项目中没有告诉它应该在哪个tomcat中运行,右击项目名称-----》build path--》configure path---->library------>add library-------》server runtime-----》添加一个tomcat即可
具体详情可·参照http://jingyan.baidu.com/article/f79b7cb34f40569144023ef9.html
第二步:如果在server runtme中没有可选项就可以在windows中找server---》运行环境,具体内容可看http://blog.csdn.net/xyy511/article/details/46457665
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