【下载文档:  AJAX+Servlet实现的数据处理显示功能示例.txt 】

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AJAX+Servlet实现的数据处理显示功能示例
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"%>












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。