日期:2014-05-16 浏览次数:20484 次
下面这个方法是利用ajax技术去做的!同样经过测试,兼容IE和Firefox,和第一篇文章稍有不同!
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <title>numberDemo.xhtml</title> <meta http-equiv="keywords" content="enter,your,keywords,here" /> <meta http-equiv="description" content="A short description of this page." /> <meta http-equiv="content-type" content="text/html; charset=UTF-8" /> <!--<link rel="stylesheet" type="text/css" href="styles.css">--> </head> <script type="text/javascript" src="./scripts/prototype_1.6.js"></script> <script type="text/javascript" src="./scripts/OpenLayers_2.6_zy.js"></script> </head> <script type="text/javascript"> function init(){ var city = $("number"); //alert(city); var url="http://localhost:8080/ajax/my/numberServlet"; var options={method:"get"}; // 创建Ajax.Request对象,发起一个Ajax请求 var myAjax = new Ajax.Request( url, // 请求的URL { method: 'get', // 使用GET方式发送HTTP请求 onComplete: showResponse // 指定请求成功完成时需要执行的方法 } ); } function showResponse(response){ var doc = response.responseXML; var cs = doc.getElementsByTagName("number"); alert(cs.length) for(var i=0;i<cs.length;i++){ var a = cs[i]; var b = a.childNodes; var c=b[0]; var oOption = document.createElement("OPTION"); document.getElementById("number").options.add(oOption); oOption.innerHTML = c.nodeValue; oOption.value = i; } } </script> <body onload="init()"> <select id="number"> </select> </body> </html>
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package com.fys.js.demo; import java.io.IOException; import java.io.PrintWriter; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.dom4j.Document; import org.dom4j.DocumentFactory; import org.dom4j.Element; import org.dom4j.io.OutputFormat; import org.dom4j.io.XMLWriter; public class NumberServlet extends HttpServlet { public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { this.doPost(request, response); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/xml"); PrintWriter out = response.getWriter(); //开始利用Dom4j生成xml文件 Document doc = DocumentFactory.getInstance().createDocument(); doc.setXMLEncoding("UTF-8"); Element root = doc.addElement("numbers"); for(int i = 1 ; i <= 20 ; i++){ root.addElement("number").addText(i+""); } //文件写出去,但是没有写到磁盘,只是放在内存 XMLWriter writer = new XMLWriter(out,OutputFormat.createPrettyPrint()); writer.write(doc); out.flush(); out.close(); } }
?使用到了dom4j和一些外部的js文件!具体自己下载来看!