Jsp中使用xmlhttp进行数据交互

【 tulaoshi.com - Web开发 】

 1.客户端提交请求

Domain = " test.com"
sXml = "？xml version=""1.0"" encoding=""gb2312"" ？" &_
     "Package" &_
 
     "Domain" & Domain & "/Domain" &_
     "/Package"
 Set oD = Server.CreateObject("Microsoft.XMLHTTP")
 oD.Open "Post", "http://Server/Domain_Check.jsp", False
 oD.Send(sXml)
 
 If oD.Status = 200 Then
  Result = oD.responseText
  Set o = Server.CreateObject("Microsoft.XMLDOM")
  o.LoadXML(Result)
 
  Domain = CInt(o.selectSingleNode("//Result").text)
  Response.Write Domain
  Set o = Nothing
  Set oD = Nothing
 End If

2.服务器端解析数据包

%@ page import="java.util.*" %
%@ page import="java.text.*" %
%@ page import="java.io.*" %
%@ page import="org.w3c.dom.*" %
%@ page import="javax.xml.parsers.*" %
%@ page contentType="text/html; charset=gbk" %
%
 //获得数据包
 request.setCharacterEncoding("UTF-8");
 BufferedReader in = request.getReader();
 String line;
 String xmlRequest = "";
 String domain_name = "";
 
 while ((line = in.readLine()) != null)
 {
  //构造数据包
  xmlRequest = xmlRequest + line + "n";
 }
 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
 DocumentBuilder db = factory.newDocumentBuilder();
 ByteArrayInputStream stream = new ByteArrayInputStream(xmlRequest.getBytes("UTF-8"));
 Document doc = db.parse(stream);
 Element root = doc.getDocumentElement();
 NodeList Domain = root.getElementsByTagName("Domain");
 if (Domain.getLength() == 1) {
  Element e = (Element) Domain.item(0);
  domain_name = (String) e.getFirstChild().getNodeValue();
 }
//返回数据
 out.println("？xml version="1.0" encoding="gb2312" ？n");
 out.println("Packagen");
 out.println("tResult" + domain_name + "/Resultn");
 out.println("/Package");
%

3.得到返回结果

test.com