Jsp中使用xmlhttp进行数据交互_Java

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("<Package>\n");
out.println("\t<Result>" + domain_name + "</Result>\n");
out.println("</Package>");
%>

3.得到返回结果

test.com

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Jsp中使用xmlhttp进行数据交互