JSP中利用URL重写传递参数的方法

时间：2021-05-02

本文讲解了在servlet页中重定向到index.jsp页，但重写index.jsp页的URL传递两个参数给index页。

1.Servlet页中的内容：

/**** @comefrom biye5u.com

*/

package MyServlet;

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

public class URLRewritingServlet extends HttpServlet {protected void processRequest(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html;charset=UTF-8");PrintWriter out = response.getWriter();String urI = response.encodeRedirectURL("http://localhost:8084/LearnServlet/index.jsp?sid=5748&name=hell");response.sendRedirect( urI );

try {out.println("<html>");out.println("<head>");out.println("<title>Servlet URLRewritingServlet</title>"); out.println("</head>");out.println("<body>");out.println("<h1>Servlet URLRewritingServlet at " + request.getContextPath () + "</h1>");out.println("</body>");out.println("</html>");} finally { out.close();}}

@Overridepublic void init(ServletConfig config)throws ServletException{super.init(config);}

@Overrideprotected void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {processRequest(request, response);}

@Overrideprotected void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {processRequest(request, response);}

@Overridepublic String getServletInfo() {return "Short description";}

}

2.index.jsp中的内容:

<%-- Document : indexCreated on : 2009-10-13, 12:59:28Author : lucifer--%>

<%@page contentType="text/html" pageEncoding="UTF-8"%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">

<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>翔宇亭IT乐园</title></head><body><%String name = request.getParameter("name");String a = request.getParameter("sid");out.print(a + "<br>" + name);%></body></html>

3.输出结果：

5748

hell

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