重定向的servlet

最新推荐文章于 2024-04-18 11:00:40 发布

iteye_6481

最新推荐文章于 2024-04-18 11:00:40 发布

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文章标签： java

本文介绍了一个简单的Servlet示例，该示例演示了如何使用Java进行URL的编码和解码操作。通过GET请求传递参数，并利用URLEncoder.encode()和URLDecoder.decode()方法实现了字符串的编码与解码。

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import java.io.IOException; import java.io.UnsupportedEncodingException; import java.net.URLDecoder; import java.net.URLEncoder; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; public class FormServlet extends HttpServlet { private String url = ""; private String url1 = ""; private String url2 = ""; public void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { url = request.getParameter("url"); url1 = encode(url); url2 = decode(url1); System.out.println(url1); System.out.println(url2); response.sendRedirect("index.jsp"); } private String encode(String url) throws UnsupportedEncodingException { return URLEncoder.encode(url, "utf-8"); } private String decode(String url1) throws UnsupportedEncodingException { return URLDecoder.decode(url1, "utf-8"); } }
<?xml version="1.0" encoding="GB18030"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> <servlet> <servlet-name>FormServlet</servlet-name> <servlet-class> FormServlet </servlet-class> </servlet> <servlet-mapping> <servlet-name>FormServlet</servlet-name> <url-pattern>/go</url-pattern> </servlet-mapping> </web-app>
<%@ page language="java" import="java.util.*" pageEncoding="GB18030"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page">  </head> <body> This is my JSP page. <br> </body> </html>