Android调用webservice（线程实现）

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本文是在Android环境下调用c#写的webservice，由于楼主也是入门初学者，所以过程一波三折，由于android4.0后不允许在主线连接网络，直接在主线程中写运行会出错，主线程不能直接访问WebService，需要新建一个线程访问WebService，然后把消息传回更改TextView。所以楼主写一下自己学习他人代码，然后利用线程实现的过程

第一步：新建一个安卓项目，导入webservice所需要的jar包ksoap2-android-assembly-2.4-jar-with-dependencies.jar

第二步：编写布局文件activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="${relativePackage}.${activityClass}" >    <TextView        android:id="@+id/result"        android:layout_width="wrap_content"        android:layout_height="wrap_content"         /></RelativeLayout>

第三步：编写WebServiceUtils

public class WebServiceUtils {public static final String WEB_SERVER_URL = "http://192.168.1.100:80/WebService1.asmx";// 含有3个线程的线程池private static final ExecutorService executorService = Executors.newFixedThreadPool(1);// 命名空间private static final String NAMESPACE = "http://tempuri.org/";/** *  * @param url *            WebService服务器地址 * @param methodName *            WebService的调用方法名 * @param properties *            WebService的参数 * @param webServiceCallBack *            回调接口 */public static void callWebService(String url, final String methodName,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, methodName);// 实例化SoapSerializationEnvelope，传入WebService的SOAP协议的版本号final SoapSerializationEnvelope soapEnvelope = new SoapSerializationEnvelope(SoapEnvelope.VER12);// 设置是否调用的是.Net开发的WebServicesoapEnvelope.setOutputSoapObject(soapObject);soapEnvelope.dotNet = true;httpTransportSE.debug = true;// 用于子线程与主线程通信的Handlerfinal Handler mHandler = new Handler() {@Overridepublic 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WebServiceexecutorService.submit(new Runnable() {@Overridepublic void run() {SoapObject resultSoapObject = null;try {httpTransportSE.call(NAMESPACE + methodName, soapEnvelope);System.out.println("soap envelop"+soapEnvelope.getResponse());if (soapEnvelope.getResponse() != null) {// 获取服务器响应返回的SoapObjectresultSoapObject = (SoapObject) soapEnvelope.bodyIn;}} catch (HttpResponseException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (XmlPullParserException e) {e.printStackTrace();} finally {// 将获取的消息利用Handler发送到主线程mHandler.sendMessage(mHandler.obtainMessage(0,resultSoapObject));}}});}public interface WebServiceCallBack {public void callBack(SoapObject result);}}

第四步：编写ProgressDialogUtils

public class ProgressDialogUtils {private static ProgressDialog mProgressDialog;/** * 显示ProgressDialog * @param context * @param message */public static void showProgressDialog(Context context, CharSequence message){if(mProgressDialog == null){mProgressDialog = ProgressDialog.show(context, "", message);}else{mProgressDialog.show();}}/** * 关闭ProgressDialog */public static void dismissProgressDialog(){if(mProgressDialog != null){mProgressDialog.dismiss();mProgressDialog = null;}}}

第五步：在配置文件AndroidManifest.xml中加入 <uses-permission android:name="android.permission.INTERNET"/>入网许可

最后运行结果

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