Servlet--转发操作

来源：互联网发布：滴滴算法岗年薪多少编辑：程序博客网时间：2024/06/05 03:00

package lzh.servlettest;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.RequestDispatcher;import javax.servlet.ServletException;import javax.servlet.annotation.WebServlet;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;/** *  * 测试Servlet转发 * 转发：当前请求未完成，服务器调用另一个程序继续完成整个请求。 * @author lzh * */@WebServlet(asyncSupported = true, urlPatterns = { "/RequestDispatherServlet" })public class RequestDispatherServlet extends HttpServlet {private static final long serialVersionUID = 1L;protected void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {// 设置响应浏览器的字符编码，可以支持中文response.setContentType("text/html;charset=UTF-8");// step1: 获得请求调度器// 参数：// 当前页面：http://localhost:8080/day06/RequestDispatherServlet// 目标页面：http://localhost:8080/day06/TestRequestServletRequestDispatcher dispatcher = request.getRequestDispatcher("TestRequestServlet");//需要将数据发送到浏览器PrintWriter out = response.getWriter();System.out.println("01:测试语句，服务器后台执行转发前");out.print("02:测试语句，页面转发前");// step2: 利用forward方法来执行转发操作，dispatcher.forward(request, response);  //将会执行下一个页面out.print("05:测试语句，页面转发后");System.out.println("06:测试语句，服务器后台执行转发后");}}

package lzh.servlettest;import java.io.IOException;import java.io.PrintWriter;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(asyncSupported = true, urlPatterns = { "/TestRequestServlet" })public class TestRequestServlet extends HttpServlet {private static final long serialVersionUID = 1L;protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {// 设置响应浏览器的字符编码，可以支持中文response.setContentType("text/html;charset=UTF-8");//输出内容System.out.println("03:转发页面测试，转发调用中。。。。。。");PrintWriter out = response.getWriter();  // 必须与调用的servlet使用的流相同out.print("04:测试语句，页面转发调用中。。。。。。");}}

0 0