这篇文章主要介绍了AJAX+Servlet实现的数据处理显示功能,结合实例形式分析了前台ajax与后台Servlet生成随机数显示的相关交互操作技巧,需要的朋友可以参考下
本文实例讲述了AJAX+Servlet实现的数据处理显示功能。分享给大家供大家参考，具体如下：
实现功能：在输入框中输入字符，用AJAX传到后台Servlet处理后加上随机数，并返回到前台显示。
一、写前台jsp页面index.jsp
< page language="java" import="java.util.*" pageEncoding="utf-8"My JSP 'index.jsp' starting page
二、写后台Servlet加random随机数，关键代码如下：
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); //用utf-8转换获得传输过来的码 response.setContentType("text/html"); PrintWriter out = response.getWriter(); String txt = request.getParameter("txt"); // String tx = new String(txt.getBytes("iso-8859"),"utf-8"); out.print("txt="+txt+Math.random()); out.flush(); out.close(); } /** * The doPost method of the servlet.
* * This method is called when a form has its tag value method equals to post. * * @param request the request send by the client to the server * @param response the response send by the server to the client * @throws ServletException if an error occurred * @throws IOException if an error occurred */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setContentType("text/html;charset=UTF-8"); PrintWriter out = response.getWriter(); String username = request.getParameter("username"); // String txt = new String(username.getBytes("ISO-8859-1"),"UTF-8"); String txt = new String(username); out.print("txt="+txt+":"+Math.random()); out.flush(); out.close(); } 更多关于ajax相关内容感兴趣的读者可查看本站专题：《jquery中Ajax用法总结》、《JavaScript中ajax操作技巧总结》、《PHP+ajax技巧与应用小结》及《asp.net ajax技巧总结专题》
希望本文所述对大家ajax程序设计有所帮助。
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