The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path解決方案

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The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path
           

項目右擊–>build path -->Add libraries–>server runtime–>next

選擇tomcat版本–>apply

然後如下圖 勾選相應tomcat版本–>apply–>apply and close

ok了！！！

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