HttpURLConnection 进行WebService请求

package com.soap.client;

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

/**
* WebService 发起请求
*
* @author Roger
*/
public class SoapRequestTest {

public static void main(String[] args) throws Exception {

// Web Service 请求参数
StringBuffer soapMessage = new StringBuffer();
soapMessage.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
soapMessage.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/\">");
soapMessage.append("  <soap:Body>");
soapMessage.append("    <GetBasicInfo xmlns=\"http://www.tech-trans.com.cn/\" />");
soapMessage.append("  </soap:Body>");
soapMessage.append("</soap:Envelope>");

String soapAction = "http://www.tech-trans.com.cn/GetBasicInfo";

// 进行soap请求并获取响应信息
String response = soapRequest(soapMessage.toString(), soapAction);
System.out.println(response);
}

/**
* Web Service 请求
*
* @param soapMessage
*            请求参数
* @param soapAction
*            请求soapAction
* @return 响应XML
*/
public static String soapRequest(String soapMessage, String soapAction) {
// 请求响应报文
StringBuilder response = new StringBuilder();

HttpURLConnection conn = null;
try {
conn = getConnection();
// 设置请求Header
conn.setRequestProperty("Content-Length",
String.valueOf(soapMessage.length()));
conn.setRequestProperty("SOAPAction", soapAction);

// request输出流
OutputStream output = conn.getOutputStream();
if (null != soapMessage) {
byte[] b = soapMessage.getBytes("utf-8");
// 发送soap请求报文
output.write(b, 0, b.length);
}
output.flush();
output.close();

// 获取soap响应报文
InputStream input = conn.getInputStream();

getResponseMessage(input, response);

input.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
conn.disconnect();
}
return response.toString();
}

/**
* 获取响应数据，进行转码，处理乱码
*
* @param input
*            InputStream
* @param response
*            响应数据
* @throws Exception
*/
public static void getResponseMessage(InputStream input,
StringBuilder response) throws Exception {
BufferedReader br = new BufferedReader(new InputStreamReader(input,
"UTF-8"));
int c = -1;
// sb为返回的soap响应报文字符串
while (-1 != (c = br.read())) {
response.append((char) c);
}
}

/**
* 获取HttpURLConnection
*
* @return HttpURLConnection
* @throws Exception
*/
public static HttpURLConnection getConnection() throws Exception {
// 设置soap请求报文的相关属性
// 服务端WSDL
URL url = new URL("http://192.168.1.1:1999/CRM_VIP_Proxy.asmx?WSDL");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
// 设置请求Header
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setDefaultUseCaches(false);
conn.setRequestProperty("Host", "58.42.235.140");
conn.setRequestProperty("Content-Type","text/xml; charset=utf-8");
conn.setRequestProperty("POST", "/CRM_VIP_Proxy.asmx HTTP/1.1");
return conn;
}

}