Jsp頁面報錯The superclass "javax.servlet.http.HttpServlet" was not found on the Java

Eclipse創建jsp後報錯Multiple annotations found at this line:- The superclass “javax.servlet.http.HttpServlet” was not found on the JavaBuild Path- The superclass “javax.servlet.http.HttpServlet” was not found on the JavaBuild Path

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是因爲缺少servlet-api.jar右擊項目文件，選擇Build Path–>Configure Build Path…–>Libraries如果沒有Apache Tomcat，就點擊Add Library–>Server Runtime–>Next–>選擇Apache–>Finish，刷新項目看看錯誤是否消失。

如果有Apache Tomcat就點擊Add Library…–>Server Runtime–>Next–>點擊Apache tomcat->Finish–>ok，