本实例将向大家详细介绍，在Android中如何调用服务器端提供的 webservice 获取手机号码归属地信息，实现典型的分布式应用。
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package cn.itcast.mobile.address;
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import java.io.InputStream;
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import cn.itcast.service.MobileInfoService;
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import Android.app.Activity;
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import Android.os.Bundle;
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import Android.util.Log;
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import Android.view.View;
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import Android.widget.Button;
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import Android.widget.EditText;
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import Android.widget.TextView;
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import Android.widget.Toast;
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public class MainActivity extends Activity {
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private EditText mobileText;
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private TextView addressView;
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private static final String TAG = "MainActivity";
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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mobileText = (EditText)this.findViewById(R.id.mobile);
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addressView = (TextView)this.findViewById(R.id.address);
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Button button = (Button)this.findViewById(R.id.button);
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button.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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String mobile = mobileText.getText().toString();
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InputStream inStream =this.getClass().getClassLoader().getResourceAsStream("mobilesoap.xml");
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try {
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addressView.setText(MobileInfoService.getMobileAddress(inStream, mobile));
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} catch (Exception e) {
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Log.e(TAG, e.toString());
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Toast.makeText(MainActivity.this, "查询失败", 1).show();
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}
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}
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});
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}
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}
界面文件：
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"
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Android:orientation="vertical"
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Android:layout_width="fill_parent"
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Android:layout_height="fill_parent"
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>
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<TextView
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Android:layout_width="fill_parent"
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Android:layout_height="wrap_content"
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Android:text="@string/mobile"
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/>
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<EditText
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Android:layout_width="fill_parent"
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Android:layout_height="wrap_content"
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Android:id="@+id/mobile"
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/>
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<Button
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Android:layout_width="wrap_content"
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Android:layout_height="wrap_content"
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Android:text="@string/button"
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Android:id="@+id/button"
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/>
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<TextView
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Android:layout_width="fill_parent"
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Android:layout_height="wrap_content"
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Android:id="@+id/address"
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/>
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</LinearLayout>
重点实现代码：
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package cn.itcast.service;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.xmlpull.v1.XmlPullParser;
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import Android.util.Xml;
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import cn.itcast.utils.StreamTool;
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public class MobileInfoService {
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private static String readSoapFile(InputStream inStream, String mobile)throws Exception{
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byte[] data = StreamTool.readInputStream(inStream);
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String soapxml = new String(data);
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Map<String, String> params = new HashMap<String, String>();
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params.put("mobile", mobile);
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return replace(soapxml, params);
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}
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public static String replace(String xml, Map<String, String> params)throwsException{
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String result = xml;
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if(params!=null && !params.isEmpty()){
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for(Map.Entry<String, String> entry : params.entrySet()){
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String name = "\\{1}quot;+ entry.getKey();
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Pattern pattern = Pattern.compile(name);
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Matcher matcher = pattern.matcher(result);
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if(matcher.find()){
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result = matcher.replaceAll(entry.getValue());
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}
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}
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}
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return result;
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}
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public static String getMobileAddress(InputStream inStream, String mobile)throws Exception{
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String soap = readSoapFile(inStream, mobile);
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byte[] data = soap.getBytes();
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URL url = newURL("http://webservice.webxml.com.cn/WebServices/MobileCodeWS.asmx");
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HttpURLConnection conn = (HttpURLConnection)url.openConnection();
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conn.setRequestMethod("POST");
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conn.setConnectTimeout(5 * 1000);
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conn.setDoOutput(true);//如果通过post提交数据，必须设置允许对外输出数据
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conn.setRequestProperty("Content-Type", "application/soap+xml; charset=utf-8");
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conn.setRequestProperty("Content-Length", String.valueOf(data.length));
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OutputStream outStream = conn.getOutputStream();
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outStream.write(data);
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outStream.flush();
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outStream.close();
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if(conn.getResponseCode()==200){
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return parseResponseXML(conn.getInputStream());
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}
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return null;
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}
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private static String parseResponseXML(InputStream inStream) throwsException{
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XmlPullParser parser = Xml.newPullParser();
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parser.setInput(inStream, "UTF-8");
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int eventType = parser.getEventType();//产生第一个事件
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while(eventType!=XmlPullParser.END_DOCUMENT){//只要不是文档结束事件
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switch (eventType) {
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case XmlPullParser.START_TAG:
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String name = parser.getName();//获取解析器当前指向的元素的名称
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if("getMobileCodeInfoResult".equals(name)){
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return parser.nextText();
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}
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break;
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}
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eventType = parser.next();
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}
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return null;
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}
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}
最后提醒大家一句，记得在项目清单文件中，加入网络访问权限。
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<!-- 访问网络的权限 -->
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<uses-permission Android:name="android.permission.INTERNET"/>
