06.转发和重定向

 

 

package com.ivan.web;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/RequestForward")
public class RequestForward extends HttpServlet{
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        //实现请求转发
        //request.getRequestDispatcher("/a1.jsp").forward(request, response);
        //重定向一个注意事项【需要添加一个项目路径=上下文路径】
        String cp = request.getContextPath();
        System.out.println(cp);
        response.sendRedirect(cp+"/a1.jsp");
    }
}