The type javax.servlet.http.HttpServletRequest cannot be resolved. It is indirectly referenced from
The type javax.servlet.http.HttpServletRequest cannot be resolved. It is indirectly referenced from required .class files
无法解析javax.servlet.http.HttpServletRequest类型。它是从所需的.class文件间接引用的。
缺少 servlet-api.jar，添加此压缩包即可。
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