用socket发送HTTP请求时出现这样的错误，求教！

Question

学校内有一个网站提供了SOAP服务，
虽然通过web引用可以很方便地访问并取得返回信息，
但我想通过自己发送socket过去。
但是总是提示有错。
麻烦大侠们帮我看看。
我构造的socket如下：
package sockettest;import java.net.*;
import java.io.*;
/**
 *
 * @author 雁过留声
 */
public class Connect {
    static Socket socket;    public static boolean Connect(String ip, int port) throws Exception
    {
        try {
            socket = new Socket(ip, port);
            PrintStream out;
            BufferedReader in;            out = new PrintStream(socket.getOutputStream());
            in = new BufferedReader(new InputStreamReader(socket.getInputStream()));            StringBuffer sb = new StringBuffer("POST /netfilter/UserLogon.asmx HTTP/1.1\r\n");
            sb.append("Host: auth.stu.edu.cn\r\n");
            sb.append("Content-Type: text/xml; charset=utf-8\r\n");
            sb.append("Content-Length: 466\r\n");
            sb.append("SOAPAction: \"http://tempuri.org/ClientLogon\"\r\n\r\n");            sb.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
            sb.append("<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">");
            sb.append("<soap:Body>");
            sb.append("<ClientLogon xmlns=\"http://tempuri.org/\">");
            sb.append("<userName>07lslin1</userName>");
            sb.append("<password>123</password>");
            sb.append("<userIp>10.14.2.146</userIp>");
            sb.append("<hostName>null</hostName>");
            sb.append("<userMac>null</userMac>");
            sb.append("<userAgent>null</userAgent>");
            sb.append("<isVisiteForeign>true</isVisiteForeign>");
            sb.append("</ClientLogon>");
            sb.append("</soap:Body>\r\n");
            sb.append("</soap:Envelope>\r\n");            OutputStream socketOut = socket.getOutputStream();
            socketOut.write(sb.toString().getBytes());            InputStream socketIn = socket.getInputStream();
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            byte[] buff = new byte[1024];
            int len = -1;
            while((len=socketIn.read(buff))!=-1)
            {
                buffer.write(buff, 0, len);
            }
            System.out.println(new String (buffer.toByteArray()));
            return true;
        } catch (IOException ex) {//连接不成功
            System.out.println("异常："+ex.toString());
        }
        return false;
    }    public static void main(String[] rgs) throws Exception
    {
        boolean result = Connect("auth.stu.edu.cn",80);
        System.out.println(result);
    }
}但是发送出去时，打印出这样的信息：==============================================================================
HTTP/1.1 500 内部服务器错误。
Date: Sat, 19 Dec 2009 03:36:43 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 1.1.4322
Cache-Control: private
Content-Type: text/xml; charset=utf-8
Content-Length: 579<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <soap:Fault>
      <faultcode>soap:Client</faultcode>
      <faultstring>服务器无法读取请求。 --&gt; XML 文档(1, 439)中有错误。 --&gt; 行“1”上的开始标记“ClientLogon”与结束标记“ClientLogo”不匹配。 行 1，位置 457。</faultstring>
      <detail />
    </soap:Fault>
  </soap:Body>
</soap:Envelope>HTTP/1.1 400 Bad Request
Content-Type: text/html
Date: Sat, 19 Dec 2009 03:36:43 GMT
Connection: close
Content-Length: 35<h1>Bad Request (Invalid Verb)</h1>
true
成功生成（总时间：0 秒）==============================================================================
SOAP服务端要求发送请求的格式如下：******************************************************************************
ClientLogon测试
测试窗体只能用于来自本地计算机的请求。 
SOAP
下面是一个 SOAP 请求和响应示例。所显示的占位符需要由实际值替换。
//////////////////////////////////////请求示例POST /netfilter/UserLogon.asmx HTTP/1.1
Host: auth.stu.edu.cn
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://tempuri.org/ClientLogon"<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <ClientLogon xmlns="http://tempuri.org/">
      <userName>string</userName>
      <password>string</password>
      <userIp>string</userIp>
      <hostName>string</hostName>
      <userMac>string</userMac>
      <userAgent>string</userAgent>
      <isVisiteForeign>boolean</isVisiteForeign>
    </ClientLogon>
  </soap:Body>
</soap:Envelope>//////////////////////////////////////响应示例HTTP/1.1 200 OK
Content-Type: text/xml; charset=utf-8
Content-Length: length<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <ClientLogonResponse xmlns="http://tempuri.org/">
      <ClientLogonResult>string</ClientLogonResult>
    </ClientLogonResponse>
  </soap:Body>
</soap:Envelope>
******************************************************************************

Answer 1

“ClientLogon”与结束标记“ClientLogo”不匹配再看这句:
sb.append("Content-Length: 466\r\n");肯定是长度不够，466, 刚好到"ClientLogo",后面的没有传。这个长度要先拼出soap字符串，然后传字符串的长度.

Answer 2

有道理，不过，我改为501之后，出现了另一个错误：HTTP/1.1 500 内部服务器错误。
Date: Sat, 19 Dec 2009 04:22:56 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
X-AspNet-Version: 1.1.4322
Cache-Control: private
Content-Type: text/xml; charset=utf-8
Content-Length: 506<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <soap:Fault>
      <faultcode>soap:Client</faultcode>
      <faultstring>服务器无法读取请求。 --&gt; 这是一个意外的标记。标记应为“TAGEND”。 行 4，位置 16。</faultstring>
      <detail />
    </soap:Fault>
  </soap:Body>
</soap:Envelope>HTTP/1.1 400 Bad Request
Content-Type: text/html
Date: Sat, 19 Dec 2009 04:22:56 GMT
Connection: close
Content-Length: 35<h1>Bad Request (Invalid Verb)</h1>
true

Answer 3

sb.append("</soap:Body>\r\n");
sb.append("</soap:Envelope>\r\n");去掉\r\n试试看，如果还不行就自己安装个抓包工具，看看自己到底给服务端发了什么消息