Android万能使用WebServices代码,Java代码库,德仔网

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【Java】 Android万能使用WebServices
作者:carbe / 发布于2015/7/22/ 630
WebServicesLib.java

	package com.example.testwebservices;

	import java.io.InputStream;
	import java.io.OutputStream;

	import java.net.HttpURLConnection;
	import java.net.URL;

	import java.util.Map;

	import org.xmlpull.v1.XmlPullParser;

	import android.util.Xml;

	//import javax.xml.parsers.DocumentBuilder;
	//import javax.xml.parsers.DocumentBuilderFactory;
	//
	//import org.w3c.dom.Document;
	//import org.w3c.dom.Element;
	//import org.w3c.dom.NodeList;

	public class WebServicesLib {

	 /**
	 * 调用WebServices
	 *
	 * @param SERVER_URL WebServices地址
	 * @param serviceNameSpace WebServices命名空间
	 * @param functionName 函数名
	 * @param params 参数列表(名称必须对应)
	 * @return 返回结果
	 * @throws Exception
	 */
	 public static String InvokeWS(String SERVER_URL, String serviceNameSpace, String functionName, Map<String, String> params) throws Exception {
	 StringBuffer strBuff = new StringBuffer();
	 strBuff.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
	 strBuff.append("<soap12:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap12=\"http://www.w3.org/2003/05/soap-envelope\">\n");
	 strBuff.append(" <soap12:Body>\n");
	 if (params==null||params.size()==0) {
	 strBuff.append(" <" + functionName + " xmlns=\""+ serviceNameSpace +"\" />\n");
	 } else {
	 strBuff.append(" <" + functionName + " xmlns=\""+ serviceNameSpace +"\">\n");
	 for(Map.Entry<String, String> entry : params.entrySet())
	 {
	 strBuff.append(" <"+entry.getKey()+">" + entry.getValue() + "</"+entry.getKey()+">\n");
	 }
	 strBuff.append(" </" + functionName + ">\n");
	 }

	 strBuff.append(" </soap12:Body>\n");
	 strBuff.append("</soap12:Envelope>");

	// return strBuff.toString();
	
	 byte[] data = strBuff.toString().getBytes();
	 // 提交Post请求
	 URL url = new URL(SERVER_URL);
	 HttpURLConnection conn = (HttpURLConnection) url.openConnection();
	 conn.setRequestMethod("POST");
	 conn.setConnectTimeout(5 * 1000);
	 conn.setDoOutput(true);
	 conn.setRequestProperty("Content-Type","application/soap+xml; charset=utf-8");
	 conn.setRequestProperty("Content-Length", String.valueOf(data.length));
	 OutputStream outStream = conn.getOutputStream();
	 outStream.write(data);
	 outStream.flush();
	 outStream.close();
	 int responseCode = conn.getResponseCode();
	 if (responseCode == 200) {
	 InputStream inStream = conn.getInputStream();
	 XmlPullParser parser = Xml.newPullParser();
	 parser.setInput(inStream, "UTF-8");
	 int eventType = parser.getEventType();// 产生第一个事件
	 while (eventType != XmlPullParser.END_DOCUMENT) {
	 // 只要不是文档结束事件
	 switch (eventType) {
	 case XmlPullParser.START_TAG:
	 String name = parser.getName();// 获取解析器当前指向的元素的名称
	 if ((functionName+"Result").equals(name)) {
	 return parser.nextText();
	 }
	 break;
	 }
	 eventType = parser.next();
	 }
	 return "";
	 }
	 return "Error:"+responseCode;
	 }
	}
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