在做Servlet的时候, 导入
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
则Eclipse提示错误:The import javax.servlet cannot be resolved
请问是什么原因, 如何处理???
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