在安卓中获取一个城市的天气情况

要在一个安卓应用中获取一个城市的天气需要第三方的api，从网上下载ksoap2-android-assembly-2.5.7-jar-with-dependencies.jar包，然后再工程中新建一个lib文件夹，将下载的jar包放入该文件夹下，并在工程Build
Path>Configure Build Path…>libraries 中选择“Add Externel JARs…”，选定ksoap2-android-assembly-2.5.7-jar-with-dependencies.jar，点击OK，这样就可以将ksoap2-android-assembly-2.5.7-jar-with-dependencies.jar库文件引入。然后在工程Build
Path>Configure Build Path…>Order and Export 中将引入的库文件ksoap2-android-assembly-2.5.7-jar-with-dependencies.jar 选中。

然后主要代码如下：

package weather.standopen;

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.Toast;

public class Weather {

private static final String NAMESPACE = "http://WebXml.com.cn/";

private static String URL = "http://www.webxml.com.cn/webservices/weatherwebservice.asmx";

private static final String METHOD_NAME = "getWeatherbyCityName";

private static String SOAP_ACTION = "http://WebXml.com.cn/getWeatherbyCityName";

private String weatherToday;

private SoapObject detail;

public String GetCityMessage(String CityName)//更具所给的城市名获取该城市的天气情况。

{

String message=null;

try{

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;

ht.call(SOAP_ACTION, envelope);

detail =(SoapObject) envelope.getResponse();

message=detail.toString();

}catch(Exception e){

e.printStackTrace();

}

return message;

}

public String GetWeather() throws UnsupportedEncodingException

{

//解析或得的信息得到天气信息，在该函数中药用到detail

//detail是定义的全局变量，但需要先调用 GetCityMessage函数

String date = detail.getProperty(6).toString();

weatherToday = weatherToday + "\n天气：" + date.split(" ")[1];

weatherToday = weatherToday + "\n气温："+ detail.getProperty(5).toString();

weatherToday = weatherToday + "\n风力："+ detail.getProperty(7).toString() ;

return weatherToday;

}

}