Response_案例1_重定向_代码实现与Response_案例1_重定向_特点

Response_案例1_重定向_代码实现

　　　　　　重定向代码实现案例

　　　　　　　　　　　　案例：

　　　　　　　　　　　　　　1.完成重定向

　　　　　　　　　　　　　　　　　　重定向：资源跳转的方式

　　　　　　　　　　　　　　　　　　代码实现：

  //访问responseDemo01，会自动跳转到/responseDemo02资源
                    //1.设置状态码为302；
                        response.setStatus(302);
                    //2.设置响应头location
                        response.setHeader("location","/day15/responseDemo02");

                     //简单的重定向方法
                        response.sendRedirect("/day15/responseDemo02");

package qh.xueqiang.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;

/**
 * 完成重定向
 */
@WebServlet("/responseDemo01")
public class ResponseDemo01 extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            this.doPost(request,response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

                System.out.println("geigei~你来了啊");

            //访问responseDemo01，会自动跳转到/responseDemo02资源
                  /*  //1.设置状态码为302；
                        response.setStatus(302);
                    //2.设置响应头location
                        response.setHeader("location","/day15/responseDemo02");*/

                   
    }
}

package qh.xueqiang.servlet;

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

@WebServlet("/responseDemo02")
public class ResponseDemo02 extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            this.doPost(request,response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("你干嘛~");
    }
}

　　　　　　　　　简单重定向

package qh.xueqiang.servlet;

import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.annotation.*;
import java.io.IOException;

/**
 * 完成重定向
 */
@WebServlet("/responseDemo01")
public class ResponseDemo01 extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            this.doPost(request,response);
    }

    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

                System.out.println("有请我们xxxx时代的练习生");

            //访问responseDemo01，会自动跳转到/responseDemo02资源
                  /*  //1.设置状态码为302；
                        response.setStatus(302);
                    //2.设置响应头location
                        response.setHeader("location","/day15/responseDemo02");*/

                     //简单的重定向方法
                        response.sendRedirect("/day15/responseDemo02");


    }
}