【android】web service访问

android对web service的访问。使用ksoap2-android外部jar。
首先下载jar，附件就是。
加入到libs包中，然后加入classpath。

对客户端服务端web service进行编程。
提供最简单的login。

@WebService(name = "Login", targetNamespace = "http://li.duduli.com/")public interface Login {@WebMethod(operationName = "log", action = "urn:Log")public String log(@WebParam(name = "arg0") String name,@WebParam(name = "arg1") String password);}

@WebService(targetNamespace = "http://li.duduli.com/", endpointInterface = "com.duduli.li.Login", portName = "LoginImplPort", serviceName = "LoginImplService")public class LoginImpl implements Login {@Overridepublic String log(String name, String password) {// TODO Auto-generated method stubif("duduli".equals(name) && "wiki".equals(password)){System.out.println("success");return "success";}else{System.out.println("failure");return "failure";}}}

其后为android客户端编程。
提供布局文件

<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" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBottom="@+id/userName"        android:layout_alignParentLeft="true"        android:layout_alignParentTop="true"        android:text="UserName" />    <EditText        android:id="@+id/userName"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentRight="true"        android:layout_alignParentTop="true"        android:ems="10" />    <TextView        android:id="@+id/textView3"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_below="@+id/userName"        android:layout_marginTop="28dp"        android:text="PassWord" />    <EditText        android:id="@+id/passWord"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignBaseline="@+id/textView3"        android:layout_alignBottom="@+id/textView3"        android:layout_alignParentRight="true"        android:ems="10" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_centerVertical="true"        android:text="Button" />    <TextView        android:id="@+id/retrunValue"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_alignParentLeft="true"        android:layout_below="@+id/passWord"        android:layout_marginTop="32dp"        android:text="Large Text"        android:textAppearance="?android:attr/textAppearanceLarge" /></RelativeLayout>

然后是实现。

package com.duduli.li;import java.io.IOException;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.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.TextView;import android.widget.Toast;public class MainActivity extends Activity {private TextView tv,tv2;private Button b;private EditText name,password;private MyHandler myHandler;private HttpTransportSE ht;private boolean processFlag = true;//private Handler handler;private SoapSerializationEnvelope envelope;private static final String SERVICE_NS = "http://li.duduli.com/";private static final String SERVICE_URL="http://10.0.2.2:8080/MyContact/services/LoginImplPort";    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        b = (Button) this.findViewById(R.id.button1);        tv = (TextView) this.findViewById(R.id.textView1);        tv2 = (TextView) this.findViewById(R.id.retrunValue);        name = (EditText) this.findViewById(R.id.userName);        password = (EditText) this.findViewById(R.id.passWord);        myHandler = new MyHandler();        b.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif (processFlag) {  processFlag = false;;//  new Thread(new MyThread()).start();                new TimeThread().start();               }else{             Toast.makeText(getApplicationContext(), "你点击太快了", Toast.LENGTH_SHORT).show();             }}});    }    class MyHandler extends Handler{@Overridepublic void handleMessage(Message msg) {// TODO Auto-generated method stubsuper.handleMessage(msg);Bundle b = msg.getData();tv2.setText(b.getString("value")); System.out.println(b.getString("value"));}        }        class MyThread implements Runnable{@Overridepublic void run() {// TODO Auto-generated method stubMessage msg = new Message();Bundle b = new Bundle();String values = "";        ht = new HttpTransportSE(SERVICE_URL);        ht.debug = true;        //使用soap1.1协议创建Envelop对象        envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);        //实例化SoapObject对象        SoapObject request = new SoapObject(SERVICE_NS, "log");                request.addProperty("arg0", name.getText().toString());        request.addProperty("arg1", password.getText().toString());                envelope.bodyOut = request;//你要执行的方法try {ht.call(null, envelope);if(envelope.getResponse()!=null){SoapObject result = (SoapObject) envelope.bodyIn;values = result.getProperty(0).toString();                }else{values = "nothing";}b.putString("value", values);System.out.println("ok");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (XmlPullParserException e) {// TODO Auto-generated catch blocke.printStackTrace();}msg.setData(b);//MainActivity.this.sendmyHandler.sendMessage(msg);}        }            /**      * 计时线程（防止在一定时间段内重复点击按钮）      */  private class TimeThread extends Thread {public void run() {try {sleep(1000);processFlag = true;} catch (Exception e) {e.printStackTrace();}}}        @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.activity_main, menu);        return true;    }}

在这里需要指出的是，在android 2.3以后对程序行为进行了规范。不允许主线程对网络等耗时操作进行了。
所以需要handler和多线程的配合。
另外，如果用户按钮点击过快的话，会导致服务器响应比较慢，所以需要设置一个flag和一个定时线程，来限制用户行为。

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