webservice(二)示例代码

下面由一个天气预报程序来示例webservice的实现及应用。

注意这里需要引入一个外部jar文件，ksoap2-android-assembly-2.4-jar-with-dependencies.jar。

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（1）工程结构

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（2）JAVA文件内容，EWeatherActivity.java

package com.exuan.eweather;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import java.io.UnsupportedEncodingException;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.widget.TextView;

public class EWeatherActivity extends Activity {
?? ?private DayWeather[] mWeatherData;
?? ?private TextView mDateaTextView;
?? ?private TextView mDatebTextView;
?? ?private TextView mDatecTextView;
?? ?private TextView mTemperatureaTextView;
?? ?private TextView mTemperaturebTextView;
?? ?private TextView mTemperaturecTextView;
?? ?private TextView mWindaTextView;
?? ?private TextView mWindbTextView;
?? ?private TextView mWindcTextView;
?? ?
?? ?/** Called when the activity is first created. */
?? ?@Override
?? ?public void onCreate(Bundle savedInstanceState) {
?? ??? ?super.onCreate(savedInstanceState);
?? ??? ?setContentView(R.layout.main);
?? ??? ?//init the view
?? ??? ?mDateaTextView = (TextView)findViewById(R.id.textview_datea);
?? ??? ?mDatebTextView = (TextView)findViewById(R.id.textview_dateb);;
?? ??? ?mDatecTextView = (TextView)findViewById(R.id.textview_datec);
?? ??? ?mTemperatureaTextView = (TextView)findViewById(R.id.textview_temperaturea);
?? ??? ?mTemperaturebTextView = (TextView)findViewById(R.id.textview_temperatureb);
?? ??? ?mTemperaturecTextView = (TextView)findViewById(R.id.textview_temperaturec);
?? ??? ?mWindaTextView = (TextView)findViewById(R.id.textview_winda);
?? ??? ?mWindbTextView = (TextView)findViewById(R.id.textview_windb);
?? ??? ?mWindcTextView = (TextView)findViewById(R.id.textview_windc);
?? ??? ?updateData();
?? ?}
?? ?
?? ?private void updateData()
?? ?{
?? ??? ?new Thread(){
?? ??? ??? ?public void run()
?? ??? ??? ?{
?? ??? ??? ??? ?String city = "北京";
?? ??? ??? ??? ?getWeather(city);
?? ??? ??? ??? ?mHandler.sendEmptyMessage(0);
?? ??? ??? ?}
?? ??? ?}.start();
?? ?}
?? ?
?? ?private Handler mHandler = new Handler(){
?? ??? ?public void handleMessage(Message msg)
?? ??? ?{
?? ??? ??? ?updateWeather();
?? ??? ?}
?? ?};
?? ?
?? ?private void updateWeather()
?? ?{
?? ??? ?if(null != mWeatherData)
?? ??? ?{
?? ??? ??? ?mDateaTextView.setText(mWeatherData[0].mDate);
?? ??? ??? ?mDatebTextView.setText(mWeatherData[1].mDate);
?? ??? ??? ?mDatecTextView.setText(mWeatherData[2].mDate);
?? ??? ??? ?mTemperatureaTextView.setText(mWeatherData[0].mTemperature);
?? ??? ??? ?mTemperaturebTextView.setText(mWeatherData[1].mTemperature);
?? ??? ??? ?mTemperaturecTextView.setText(mWeatherData[2].mTemperature);
?? ??? ??? ?mWindaTextView.setText(mWeatherData[0].mWind);
?? ??? ??? ?mWindbTextView.setText(mWeatherData[1].mWind);
?? ??? ??? ?mWindcTextView.setText(mWeatherData[2].mWind);
?? ??? ?}
?? ?}
?? ?
?? ?private static final String NAMESPACE = "http://WebXml.com.cn/";
?? ?// WebService address
?? ?private static final String URL = "http://www.webxml.com.cn/webservices/weatherwebservice.asmx";
?? ?// WebService method name
?? ?private static final String METHOD_NAME = "getWeatherbyCityName";
?? ?// WebService action
?? ?private static final String SOAP_ACTION = "http://WebXml.com.cn/getWeatherbyCityName";
?? ?private SoapObject mWeather;

?? ?public void getWeather(String cityName) {
?? ??? ?try {
?? ??? ??? ?//init soap object
?? ??? ??? ?SoapObject rpc = new SoapObject(NAMESPACE,METHOD_NAME);
?? ??? ??? ?rpc.addProperty("theCityName",cityName);
?? ??? ??? ?SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
?? ??? ??? ?envelope.bodyOut = rpc;
?? ??? ??? ?envelope.dotNet = true;
?? ??? ??? ?envelope.setOutputSoapObject(rpc);
?? ??? ??? ?HttpTransportSE ht = new HttpTransportSE(URL);
?? ??? ??? ?ht.debug = true;
?? ??? ??? ?//call the action
?? ??? ??? ?ht.call(SOAP_ACTION,envelope);
?? ??? ??? ?//get the response soap object
?? ??? ??? ?mWeather =(SoapObject) envelope.getResponse();
?? ??? ??? ?getWeather(mWeather,cityName);
?? ??? ??? ?return;
?? ??? ?} catch (Exception e) {
?? ??? ??? ?e.printStackTrace();
?? ??? ?}
?? ?}

?? ?private void getWeather(SoapObject detail,String local)throws UnsupportedEncodingException
?? ?{
?? ??? ?mWeatherData = new DayWeather[3];
?? ??? ?mWeatherData[0] = new DayWeather();
?? ??? ?mWeatherData[0].mDate = detail.getProperty(6).toString();
?? ??? ?mWeatherData[0].mTemperature = detail.getProperty(5).toString();
?? ??? ?mWeatherData[0].mWind = detail.getProperty(7).toString();
?? ??? ?mWeatherData[1] = new DayWeather();
?? ??? ?mWeatherData[1].mDate = detail.getProperty(13).toString();
?? ??? ?mWeatherData[1].mTemperature = detail.getProperty(12).toString();
?? ??? ?mWeatherData[1].mWind = detail.getProperty(14).toString();
?? ??? ?mWeatherData[2] = new DayWeather();
?? ??? ?mWeatherData[2].mDate = detail.getProperty(18).toString();
?? ??? ?mWeatherData[2].mTemperature = detail.getProperty(17).toString();
?? ??? ?mWeatherData[2].mWind = detail.getProperty(19).toString();
?? ?}
?? ?
?? ?//store a day's weather infomation
?? ?class DayWeather
?? ?{
?? ??? ?String mDate;
?? ??? ?String mTemperature;
?? ??? ?String mWind;
?? ?}
?? ?/*以下为LOG各property内容
?? ??? ?E/property1: 北京
?? ??? ?E/property4(: 2012-3-27 16:03:45
?? ??? ?E/property5(: 5℃/20℃
?? ??? ?E/property6: 3月27日 晴
?? ??? ?E/property7: 无持续风向微风
?? ??? ?E/property10: 今日天气实况：气温：23℃；风向/风力：西风 2级；湿度：8%；空气质量：较差；紫外线强度：中等。
?? ??? ?E/property12: 9℃/18℃
?? ??? ?E/property13: 3月28日 多云转阴
?? ??? ?E/property14: 无持续风向微风
?? ??? ?E/property17: 6℃/15℃
?? ??? ?E/property18(: 3月29日 阵雨转多云
?? ??? ?E/property19: 无持续风向微风转北风4-5级
?? ? */
}

（3）布局文件内容，main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<LinearLayout
??? android:layout_width="fill_parent"
??? android:layout_height="wrap_content"
??? android:orientation="vertical"
??? >
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_datea"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_temperaturea"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_winda"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>?????? ?
??? </LinearLayout>
<LinearLayout
??? android:layout_width="fill_parent"
??? android:layout_height="wrap_content"
??? android:orientation="vertical"
??? >
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_dateb"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_temperatureb"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_windb"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>?????? ?
??? </LinearLayout>
<LinearLayout
??? android:layout_width="fill_parent"
??? android:layout_height="wrap_content"
??? android:orientation="vertical"
??? >
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_datec"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_temperaturec"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>
???? <TextView
???????? android:layout_width="wrap_content"
???????? android:layout_height="wrap_content"
???????? android:id="@+id/textview_windc"
???????? android:text="@string/no_data"
???????? >
???????? </TextView>?????? ?
??? </LinearLayout>?????? ?
</LinearLayout>

（4）Manifest加上相应权限，AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET"></uses-permission>

（5）运行结果

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