获取城市天气信息的简单例子-----WebService

本例是通过第三方类库ksoap2来调用天气WebService的简单实例

前提：

1.下载kSoap2.jar包；

2.在AndroidManifest.xml文件中声明网络访问权限

<uses-permission android:name="android.permission.INTERNET" />//这句话放在</activity>标签后面即可；

先上代码：

1.activity_main.xml代码：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    
   >

    <EditText
        android:id="@+id/cityName"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="请输入城市名称"
        android:ems="10" >

        <requestFocus />
    </EditText>

    <Button
        android:id="@+id/getWeather"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="获取天气信息" />
    
   </LinearLayout>

2.MainActivity代码：

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import org.xmlpull.v1.XmlPullParserException;

import android.support.v7.app.ActionBarActivity;
import android.support.v7.app.ActionBar;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.Toast;
import android.os.Build;

public class MainActivity extends ActionBarActivity {
	final String NAMESPACE ="http://WebXml.com.cn/";
	//webService地址
	final String URL = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx";
	final String METHOD_NAME = "getWeatherbyCityName";
	final String SOAP_ACTION = "http://WebXml.com.cn/getWeatherbyCityName";
	
	private Button btnWeather;
	private EditText cityName;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		btnWeather = (Button) findViewById(R.id.getWeather);
		cityName = (EditText) findViewById(R.id.cityName);

		
		btnWeather.setOnClickListener(new OnClickListener() {	
			@Override
			public void onClick(View v) {
					
				 getWeather();

			}
		});
	}
	
	private  void getWeather(){
		Thread thread = new Thread( new Runnable() {
			
			//@Override
			public void run() {
				try {
					//获取输入的城市名称
					String cityname = cityName.getText().toString();
					
					final String NAMESPACE ="http://WebXml.com.cn/";
					//webService地址
					final String URL = "http://www.webxml.com.cn/WebServices/WeatherWebService.asmx";
					final String METHOD_NAME = "getWeatherbyCityName";
					final String SOAP_ACTION = "http://WebXml.com.cn/getWeatherbyCityName"; 	//命名空间+方法名
					// 创建HttpTransportSE对象，传递WebService服务器地址
					HttpTransportSE ht = new HttpTransportSE(URL);
					//1.创建SoapObject 并指定访问的名称空间及方法名
					SoapObject sop = new SoapObject(NAMESPACE,METHOD_NAME);
					//2.设置参数值
					sop.addProperty("theCityName",cityname);
					
					/**
						常量SoapEnvelope.VER10：对应于SOAP 1.0规范
					* 常量SoapEnvelope.VER11：对应于SOAP 1.1规范 
					* 常量SoapEnvelope.VER12：对应于SOAP 1.2规范
					* 这样，无论要调用的webservice采用了哪一个SOAP规范，你都可以轻松应对。
					* */
					
					// 实例化SoapSerializationEnvelope，传入WebService的SOAP协议的版本号  
					SoapSerializationEnvelope senp  = new SoapSerializationEnvelope(SoapEnvelope.VER11);
					//设置是否调用.net开发的webService
					senp.dotNet = true;
					//设置对象的bodyOut属性
					senp.setOutputSoapObject(sop);//senp.bodyOut = sop;	
					ht.debug=true;
						//执行call方法 发送请求
						//ht.call(null,senp);
						ht.call(SOAP_ACTION,senp);
						
					//获取结果
						SoapObject obj = (SoapObject) senp.bodyIn;
						SoapObject detail = (SoapObject) obj.getProperty("getWeatherbyCityNameResult");
						Log.i("MyTag",detail.toString());
						//效果 ： 会输出从网络获取的对应城市的天气信息
					} catch (IOException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					} catch (XmlPullParserException e) {
						// TODO Auto-generated catch block
						e.printStackTrace();
					}
			}
		});
		
		Log.i("MyTag","start");
		thread.start();
	}
	
}