Eclipse中出现The type javax.servlet.http.HttpServletRequest cannot be resolved.问题

The type javax.servlet.http.HttpServletRequest cannot be resolved. It is indirectly referenced from required .class files 问题原因：项目中缺少jar包：servlet-api.jar 解决方法有两种 解决办法： 方法1：把 servlet-api.jar 添加到项目中（该jar

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