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Android万能使用WebServices(不用引入外部包)
直接上代码
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 =http://www.mamicode.com/ 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; }}
调用方法
MainActivity.java
package com.example.testwebservices;import java.util.HashMap;import java.util.Map;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity { private TextView mobileAddress; private static final int MSG_SUCCESS = 0;// private static final int MSG_FAILURE = 1;// private Thread mThread; private boolean isRunning = false; /** * 异步调用 */ private Handler mHandler = new Handler() { public void handleMessage(Message msg) {// 此方法在UI线程运行 switch (msg.what) { case MSG_SUCCESS: mobileAddress.setText(msg.obj.toString()); Toast.makeText(getApplication(), "查询成功", Toast.LENGTH_LONG) .show(); break; case MSG_FAILURE: mobileAddress.setText(msg.obj.toString()); Toast.makeText(getApplication(), "查询失败", Toast.LENGTH_LONG) .show(); break; } isRunning=false; } }; Runnable runnable = new Runnable() { @Override public void run() { // 读取XML文件 try { Map<String, String> params = new HashMap<String, String>(); String add = WebServicesLib.InvokeWS( "http://192.168.1.149:6666/WebServices/SystemRoles.asmx", "http://tempuri.org/", "GetAllSystemRoles", params); mHandler.obtainMessage(MSG_SUCCESS, add).sendToTarget(); } catch (Exception e) { mHandler.obtainMessage(MSG_FAILURE,e.getMessage()).sendToTarget(); } } }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mobileAddress = (TextView) this.findViewById(R.id.mobileAddress); Button btnSearch = (Button) this.findViewById(R.id.btnSearch); btnSearch.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { // Android 4.0 之后不能在主线程中请求HTTP请求 if (!isRunning) { isRunning=true; mThread = new Thread(runnable); mThread.start();// 线程启动 } else { Toast.makeText(getApplication(), "线程已经启动。",Toast.LENGTH_LONG).show(); } } }); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; }}
Android万能使用WebServices(不用引入外部包)
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