android调用Webservice

最新推荐文章于 2025-06-04 10:37:50 发布

Mason Deng

最新推荐文章于 2025-06-04 10:37:50 发布

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分类专栏： Android Java 文章标签： webservice java interface 线程池 callback

本文链接：https://blog.youkuaiyun.com/dengmengxin/article/details/21378115

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本文介绍了一个用于调用WebService的实用工具类，包括创建线程池、设置命名空间、构造请求并处理响应等关键步骤。同时展示了如何通过回调接口在主线程中处理WebService返回的数据。

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package com.deng.webservice;

import java.io.IOException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

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

import android.os.Handler;
import android.os.Message;
import android.util.Log;

/**
 * 调用Webservice工具类
 * @version 2.0
 */

public class WebServiceUtils {
	
	/**
	 * 命名空间,这里是常量
	 */
	public static final String NAMESPACE ="http://WebXml.com.cn/";
	
	/**
	 * 创建线程池，线程数量为3
	 */
	public static final ExecutorService executorService = Executors.newFixedThreadPool(3);
	
	/**
	 * @param url 服务器地址
	 * @param mehodName 调用的方法名
	 * @param properties 参数
	 * @param webServiceCallBack 回调接口
	 */
	public static void callWebService(String url,final String mehodName,HashMap<String, String> properties,final WebServiceCallBack webServiceCallBack){
		// 创建HttpTransportSE对象，传递WebService服务器地址  
		final HttpTransportSE httpTransportSE = new HttpTransportSE(url);
		// 创建SoapObject对象  
		SoapObject soapObject = new SoapObject(NAMESPACE,mehodName);
		
		// SoapObject添加参数  
		if (soapObject != null) {
			for (Iterator<Map.Entry<String, String>> iterator = properties.entrySet().iterator(); iterator.hasNext();) {
				Map.Entry<String, String> entry =  iterator.next();
				soapObject.addProperty(entry.getKey(), entry.getValue());
			}
		}
		
		// 实例化SoapSerializationEnvelope，传入WebService的SOAP协议的版本号
		final SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
		soapEnvelope.setOutputSoapObject(soapObject);
		//调用的服务接口是否是Net服务接口
		soapEnvelope.dotNet = true;
		httpTransportSE.debug = true;
		
		// 用于子线程与主线程通信的Handler
		final Handler handler = new Handler(){
			
			public void handleMessage(Message msg) {
				super.handleMessage(msg);
				//将返回值回调到callBack的参数中 
				webServiceCallBack.callBack((SoapObject) msg.obj);
			};
		};
		
		// 开启线程去访问WebService 
		executorService.submit(new Runnable() {
			//创建一个接收结果的SoapObject对象
			SoapObject resultSoapObject = null;
			@Override
			public void run() {
				try {
					httpTransportSE.call(NAMESPACE+mehodName, soapEnvelope);
					if (soapEnvelope.getResponse() != null) {
						resultSoapObject = (SoapObject) soapEnvelope.bodyIn;
					}
				} catch (HttpResponseException e) {
					e.printStackTrace();
				} catch (IOException e) {
					e.printStackTrace();
				} catch (XmlPullParserException e) {
					e.printStackTrace();
				} catch (Exception e) {
					//System.out.print(""+e.getMessage());
					Log.d("deng", e.getMessage());
				}
				handler.sendMessage(handler.obtainMessage(0, resultSoapObject));
			}
		});
	}
	
}

/**
	*创建一个接口,此接口用于callWebService函数的参数
	*当调用callWebService函数的时候就会调用callBack函数
	*所以调用callWebService函数时必须实现callBack函数的主体
	*/
	public interface WebServiceCallBack{
		
		public void callBack(SoapObject result);
	}

方法调用

public void onclickShow(View view)
{
	String url="http://webservice.webxml.com.cn/webservices/qqOnlineWebService.asmx";
	String methodName="qqCheckOnline";
	HashMap<String, String> properties = new HashMap<String, String>();
	properties.put("qqCode", "10001");
	WebServiceUtils.callWebService(url, methodName, properties, new WebServiceCallBack() {
		
		@Override
		public void callBack(SoapObject result) {
			// TODO Auto-generated method stub
			if (result != null) {
				showMsg(result);
			}
		}
	});
}

public void showMsg(SoapObject result)
{
	String msg = result.getProperty(0).toString();
}