Android中 调用WebService详解 ksoap2-android

首先下载ksoap2-android jar包，下载地址为：https://code.google.com/p/ksoap2-android/

在项目下面建立一个libs文件夹，将刚刚下载的jar包放进去，再将其加入到工程的Build Path中

1. 布局文件/res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:gravity="center_horizontal"    android:orientation="vertical"     android:layout_margin="0px"    android:padding="0px">    <TextView                 android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginTop="30dp"        android:text="用户登录"        android:textColor="#3f8f3f"        android:textSize="30sp"/>    <TableLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_marginTop="80dp"        android:stretchColumns="0,3" >        <TableRow            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginBottom="10dp"            android:gravity="center" >            <TextView />            <TextView                android:layout_width="80dp"                android:layout_height="wrap_content"                android:gravity="left|center_vertical"                android:text="用户名："                android:textColor="#3f8f3f"                android:textSize="20sp" />            <EditText                android:id="@+id/username"                android:layout_width="160dp"                android:layout_height="38dp"                android:gravity="left|center_vertical"                android:textColor="#3f8fff"                android:textSize="18sp" />            <TextView />        </TableRow>        <TableRow            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_marginBottom="15dp"            android:gravity="center" >            <TextView />            <TextView                android:layout_width="80dp"                android:layout_height="wrap_content"                android:gravity="left|center_vertical"                android:text="密  码："                android:textColor="#3f8f3f"                android:textSize="20sp" />            <EditText                android:id="@+id/password"                android:layout_width="160dp"                android:layout_height="38dp"                android:inputType="textPassword"                android:gravity="left|center_vertical"                android:textColor="#3f8fff"                android:textSize="18sp" />            <TextView />        </TableRow>    </TableLayout>    <LinearLayout        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_gravity="center_horizontal"        android:orientation="horizontal"        android:layout_marginTop="10dp">        <Button            android:id="@+id/btn1"            android:layout_width="80dp"            android:layout_height="35dp"            android:layout_marginRight="10dp"            android:gravity="center"            android:text="登录"            android:textColor="#3f8f3f" />        <Button            android:id="@+id/btn2"            android:layout_width="80dp"            android:layout_height="35dp"            android:layout_marginLeft="10dp"            android:gravity="center"            android:text="注册"            android:textColor="#3f8f3f" />    </LinearLayout></LinearLayout>

效果图：

2.编写类MainActivity.java

package com.bibi.webservice;import java.io.IOException;import org.ksoap2.SoapEnvelope;import org.ksoap2.serialization.SoapObject;import org.ksoap2.serialization.SoapPrimitive;import org.ksoap2.serialization.SoapSerializationEnvelope;import org.ksoap2.transport.HttpTransportSE;import org.xmlpull.v1.XmlPullParserException;import android.os.Bundle;import android.app.Activity;import android.app.AlertDialog;import android.app.Dialog;import android.content.DialogInterface;import android.text.Editable;import android.util.Log;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.EditText;import android.widget.Toast;public class MainActivity extends Activity {private EditText username;private EditText password;private Button btn1;private Button btn2;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);username=(EditText) findViewById(R.id.username);password=(EditText) findViewById(R.id.password);btn1=(Button) findViewById(R.id.btn1);btn2=(Button) findViewById(R.id.btn2);btn1.setOnClickListener(new OnClickListener() {@Overridepublic void onClick(View v) {String uname=username.getText().toString().trim();String upass=password.getText().toString().trim();if(validate(uname, upass)){if(login(uname, upass)){Toast.makeText(MainActivity.this, "登陆成功", Toast.LENGTH_SHORT).show();show_Dialog("登陆成功");}else{Toast.makeText(MainActivity.this, "登陆失败", Toast.LENGTH_SHORT).show();show_Dialog("登录失败");}}}});}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}public boolean login(String username, String password) {boolean result = false;//1.创建HttpTransportSE对象，该对象用于调用Web Service操作HttpTransportSE htse = new HttpTransportSE("http://192.168.137.1:8080/WebServiceTest/UserDAOPort?wsdl");htse.debug = true;//2.使用SOAP1.1协议创建Envelope对象SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);//3.创建SoapObject对象，该对象需要传入Web Service的命名空间、方法名SoapObject request = new SoapObject("http://dao.bibi.com/", "login");//4.设置传给WebService的参数request.addProperty("arg0", username);request.addProperty("arg1", password);//5.将SoapObject设置为Envelope的传出SOAP消息体envelope.bodyOut=request;//6.调用HttpTransportSE对象的call方法，并将Envelope做为参数，调用远程Web Servicetry {//调用WebServicehtse.call(null, envelope);if (envelope.getResponse() != null) {//7.获取服务器响应返回的SOAP消息体SoapObject response = (SoapObject) envelope.bodyIn;Log.i("====response====", response.toString());//====response====  loginResponse{return=true; }SoapPrimitive sp = (SoapPrimitive) response.getProperty(0);Log.i("====getProperty====", response.getProperty(0).toString());//====getProperty====  trueLog.i("====sp====", sp.toString());//====sp====  trueif(("true").equals(sp.toString())){result = true;}}} catch (IOException ioe) {Log.i("==dddddd=",ioe.getMessage());ioe.printStackTrace();} catch (XmlPullParserException xppe) {Log.i("==dddddd123=",xppe.getMessage());xppe.printStackTrace();}return result;}public void show_Dialog(String msg){AlertDialog.Builder dialog =new AlertDialog.Builder(this);dialog.setTitle(msg);dialog.setCancelable(true);dialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubToast.makeText(MainActivity.this, "点击了确定", Toast.LENGTH_SHORT).show();}});dialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {@Overridepublic void onClick(DialogInterface dialog, int which) {// TODO Auto-generated method stubToast.makeText(MainActivity.this, "点击了取消", Toast.LENGTH_SHORT).show();}});//dialog.show();AlertDialog alert=dialog.create();alert.show();}public boolean validate(String username,String password){if(username.equals("")){show_Dialog("用户名不能为空！");return false;}if(password.equals("")){show_Dialog("密码不能为空！");return false;}return true;}}

3.访问网络的权限

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.bibi.webservice"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="10"        android:targetSdkVersion="10" />    <uses-permission android:name="android.permission.INTERNET"/>    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.bibi.webservice.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>

在调用某些WebService时，可能在第87行代码中，htse.call(null, envelope);

调用WebService时并不需要传入soapAction，将其置为null即可。