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();
}

}