[轉]android通過webservice驗證用戶

本文轉自：http://danielzzu.blog.163.com/blog/static/118515304201011103562841/

 

在企業應用中，手機與企業數據的交互必不可少，在這里我們通過實例來描述android怎樣調用.net webservice

第一步：vs2008建webservice ,貼出代碼:

 

clsoptuser.cs

public class clsoptuser
{

　　//驗證方法
public bool Validate( string u, string p)
{
bool k = false ;
SqlConnection userConn = new SqlConnection( " 連接字符 " );
userConn.Open();
SqlCommand userComm = new SqlCommand( " select *from user " , userConn);
SqlDataReader userDr = userComm.ExecuteReader();
string tmpuser, tmppass;
while (userDr.Read())
{
int userindex = userDr.GetOrdinal( " user " );
int passindex = userDr.GetOrdinal( " password " );
tmpuser = userDr.GetString(userindex);
tmppass = userDr.GetString(passindex);

　　　　　　　　//用戶名和口令正確返回true
if ((tmpuser == u) && (tmppass == p))
{
k = true ;
break ;
}
}

return k;
}
}

 

Service.cs

[WebMethod]
public bool ValidateUsername( string username, string pass, string validate)
{
if (validate == " webservice驗證碼 " )
{
clsoptuser objoptuser = new clsoptuser();
return objoptuser.Validate(username, pass);

}
else
{

return false ;
}
}

 

以上是服務器端的代碼，把上面程序布署到IIS,布署以后可以用IE測試，具體布署我就不說了，網上到處有！

第二步：android客戶端

android調用webservice 要用到ksoap2-android-assembly-2.4-jar-with-dependencies.jar一個包，到網上可下載，然后在Eclipce項目中添加處部jar

　　1、布局文件

 

main.xml 

<? xml version = " 1.0 " encoding = " utf-8 " ?>
< LinearLayout xmlns:android = " http://schemas.android.com/apk/res/android "
android:orientation = " vertical "
android:layout_width = " fill_parent "
android:layout_height = " fill_parent "

android:background = " @drawable/login2 "

android:gravity = " bottom " >

< LinearLayout android:id = " @+id/LinearLayout02 "
android:layout_height = " wrap_content "
android:layout_width = " fill_parent " >
< TextView android:layout_width = " wrap_content "
android:layout_height = " wrap_content "
android:id = " @+id/labeluser "
android:text = " @string/labelname "
android:textStyle = " bold "
android:textSize = " 20sp " >
</ TextView >
< EditText android:layout_height = " wrap_content "
android:id = " @+id/EditTextUser "
android:width = " 150px "
android:layout_width = " fill_parent " >
</ EditText >
</ LinearLayout >
< LinearLayout android:id = " @+id/LinearLayout03 "
android:layout_height = " wrap_content "
android:layout_width = " fill_parent " >
< TextView android:layout_width = " wrap_content "
android:layout_height = " wrap_content "
android:id = " @+id/labelpass "
android:text = " 登錄密碼: "
android:textStyle = " bold "
android:textSize = " 20sp " >
</ TextView >
< EditText android:layout_height = " wrap_content "
android:id = " @+id/EditTextPassWord "
android:password = " true "
android:layout_width = " fill_parent " >
</ EditText >
</ LinearLayout >
< LinearLayout android:id = " @+id/LinearLayout04 "

　　android:layout_height = " wrap_content "

　　android:layout_width = " fill_parent "

　　android:gravity = " center " >

< CheckBox android:id = " @+id/CheckBox01 "

　　　　android:layout_width = " wrap_content "

　　　　android:layout_height = " wrap_content "

　　　　android:text = " 記住用戶名和密碼 "

　　　　android: checked = " true " >

　　</ CheckBox >
</ LinearLayout >





< LinearLayout android:id = " @+id/LinearLayout01 "

　　　　android:layout_height = " wrap_content "

　　　　android:layout_width = " fill_parent "

　　　　android:layout_gravity = " bottom "

　　　　android:gravity = " center " >

　　　　< Button android:id = " @+id/BtnLogin "

　　　　　　　　android:text = " 登 錄 "

　　　　　　　　android:layout_height = " wrap_content "

　　　　　　　　android:layout_width = " wrap_content "

　　　　　　　　android:layout_weight = " 1 " >

　　　　</ Button >

　　　　< Button android:layout_width = " wrap_content "

　　　　　　　　android:layout_height = " wrap_content "

　　　　　　　　android:id = " @+id/BtnExit "

　　　　　　　 android:text = " 退 出 "

　　　　　　　android:layout_weight = " 1 " >

　　　　</ Button >
</ LinearLayout >

</ LinearLayout >

想到每次進系統都要輸入用戶名和密碼都恐怖（android的虛擬鍵盤確實不怎的),所以上面加了個"記住用戶名和密碼"，方便下次不用輸用戶名和密碼.

2、login.java

login.java

package com.liwei.login;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;

import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapPrimitive;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.AndroidHttpTransport;

import com.liwei.prohotel.clswdy.HttpThread;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.Toast;


public class login extends Activity {
Button btnlogin,btnexit; //登錄和退出按鈕對像
EditText edituser,editpass; //用戶名和密碼輸入框對象
boolean data = false ; //調用webservice 近回的數據,驗證成功true,失敗false
HttpThread thread = null ; //線程對像
String name = "" ; //用戶名
String pass = "" ; //口令
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super .onCreate(savedInstanceState);
setContentView(R.layout.main);
btnlogin = (Button)findViewById(R.id.BtnLogin); //獲得用戶名和密碼按鈕實例
btnexit = (Button)findViewById(R.id.BtnExit);
edituser = (EditText)findViewById(R.id.EditTextUser); //獲得用戶名和密碼Edittext
editpass = (EditText)findViewById(R.id.EditTextPassWord);

　　　　 //獲取上次保存的用戶名和密碼
SharedPreferences sp = getSharedPreferences( " login " ,Context.MODE_PRIVATE);
String tempstr = sp.getString( " username " , "" );
edituser.setText(tempstr);
editpass.setText(sp.getString( " pass " , "" ));

　　　　　//退出按鈕點擊事件
btnexit.setOnClickListener( new View.OnClickListener() {

public void onClick(View arg0) {
// TODO Auto-generated method stub
finish();

}
});
//登錄按鈕點擊事件
btnlogin.setOnClickListener( new View.OnClickListener() {

public void onClick(View arg0) {
// TODO Auto-generated method stub


name = edituser.getText().toString();
pass = editpass.getText().toString();

ResponseOnClickLogin(name, pass);


}
});
}

public void ResponseOnClickLogin(String username,String password){

thread = new HttpThread(handlerwdy)； //建立線程實例

HashMap < String ,Object > params = new HashMap < String ,Object > ();
try{

  　　　　 String strvalidate = " galyglxxxt " ;
strvalidate = new String(strvalidate.toString().getBytes(), " UTF-8 " );
params.put( " username " , username); // 加入參數
params.put( " pass " , password);
params.put( " validate " , strvalidate);
} catch (Exception ex){
ex.printStackTrace();
}
String url = " 192.168.3.2:8080/loginweb/service.asmx " ;//webserivce地址
　　 String nameSpace = " http://tempuri.org/ " ; //空間名,可修改
　　 String methodName = " ValidateUsername " ; //需調用webservice名稱
　　 thread.doStart(url, nameSpace, methodName, params); //啟動線程

　 }

　　//生成消息對象
Handler handlerwdy = new Handler(){

public void handleMessage(Message m){
switch (m.what){
case 1 :
data = m.getData().getBoolean( " data " ); //從消息在拿出數據

if (data){
CheckBox cb = (CheckBox)findViewById(R.id.CheckBox01); //如果要保存用戶名和密碼
if (cb.isChecked())
{
SharedPreferences sp = getSharedPreferences( " login " ,Context.MODE_PRIVATE);
Editor editor = sp.edit();
String tempname = name;
editor.putString( " username " , name);
editor.putString( " pass " , pass);
editor.commit();
}
else
{
SharedPreferences sp = getSharedPreferences( " login " ,Context.MODE_PRIVATE);
Editor editor = sp.edit();
editor.putString( " username " , "" );
editor.putString( " pass " , "" );
editor.commit();
}

　　　　　　　　　　　//登錄成功后的提示　　　　　　　　　　　　　　　　　　
Toast.makeText(prohotel. this , getString(R.string.login_message), Toast.LENGTH_SHORT)
.show();

　　　　　　　　　　　　//成功后界面要交給項目的主界面了
Intent in = new Intent(prohotel. this ,promain. class );
//把用戶名傳給下一個activity
Bundle bundle = new Bundle();
bundle.putString( " KEY_USERNAME " ,name);
in.putExtras(bundle);
login. this .startActivity(in);

}
else
{

　　　　　　　　　　//驗證不通過,給出個提示
SharedPreferences sp = getSharedPreferences( " login " ,Context.MODE_PRIVATE);
Editor editor = sp.edit();
editor.putString( " username " , "" );
editor.putString( " pass " , "" );
editor.commit();
new AlertDialog.Builder(prohotel. this )
.setTitle(getString(R.string.login_message_title))
.setMessage(getString(R.string.login_message_title))
.setIcon(R.drawable.cancel)
.setNeutralButton(getString(R.string.login_button_text), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dlg, int sumthin) {
// do nothing ?C it will close on its own
}
})
.show();
}
break ;
case 2 :

　　　　　　　　　//收到了調用出錯的消息　　　　　　　
new AlertDialog.Builder(prohotel. this )
.setTitle( " 出錯: " )
.setMessage(m.getData().getString( " error " ))
.setNeutralButton( " Close " , new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dlg, int sumthin) {
// do nothing ?C it will close on its own
}
})
.show();
break ;

}
}
};

//線程類

public class HttpThread extends Thread{
private Handler handle = null ;
String url = null ;
String nameSpace = null ;
String methodName = null ;
HashMap < String ,Object > params = null ;
ProgressDialog progressDialog = null ;


public HttpThread(Handler hander){
handle = hander;
}
//線程開始

public void doStart(String url, String nameSpace, String methodName,
HashMap < String, Object > params) {
// 把參數傳進來
this .url = url;
this .nameSpace = nameSpace;
this .methodName = methodName;
this .params = params;
//告訴使用者，請求開始了
progressDialog = new ProgressDialog(prohotel. this );
progressDialog.setTitle( " 網絡連接 " );
progressDialog.setMessage( " 正在請求，請稍等...... " );
progressDialog.setIndeterminate( true );
// progressDialog=ProgressDialog.show(clswdy.this, "網絡連接","正在驗證，請稍等......",true,true);
progressDialog.setButton( " 取消 " , new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int i) {
progressDialog.cancel();

}
});
progressDialog.setOnCancelListener( new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface dialog) {
}
});
progressDialog.show();
this .start(); //線程開始了
}
/**

*/
@Override
public void run() {
// TODO Auto-generated method stub
super .run();
try {
// web service請求,result為返回結果
boolean result = CallWebService();

if (result){

// 取消進度對話框
progressDialog.dismiss();
// clswdy.this.setProgressBarIndeterminateVisibility(false);
// 構造消息,驗證通過了
Message message = handle.obtainMessage();
Bundle b = new Bundle();
message.what = 1 ; //這里是消息的類型
b.putBoolean( " data " , true ); //這里是消息傳送的數據

message.setData(b);
handle.sendMessage(message);
}
else
{
progressDialog.dismiss();

Message message = handle.obtainMessage();
Bundle b = new Bundle();
message.what = 1 ;
b.putBoolean( " data " , false );
message.setData(b);
handle.sendMessage(message);

}
} catch (Exception ex){
progressDialog.dismiss();
// 構造消息，程序出錯了
Message message = handle.obtainMessage();
Bundle b = new Bundle();
message.what = 2 ;

b.putString( " error " , ex.getMessage());

message.setData(b);
handle.sendMessage(message);


} finally {

}
}

/**

*
*/
protected boolean CallWebService() throws Exception{
String SOAP_ACTION = nameSpace + methodName;
boolean response = false ;
SoapObject request = new SoapObject(nameSpace,methodName);
// boolean request=false;
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);

envelope.dotNet = true ; //.net 支持

// 參數

if (params != null && ! params.isEmpty() ){
for (Iterator it = params.entrySet().iterator();it.hasNext();){
Map.Entry e = (Entry) it.next();
request.addProperty(e.getKey().toString(),e.getValue());

}
}
envelope.bodyOut = request;
//
AndroidHttpTransport androidHttpTrandsport = new AndroidHttpTransport(url);
// HttpTransportSE androidHttpTransport = new HttpTransportSE(url);
SoapObject result = null ;
try {
// web service請求
androidHttpTrandsport.call(SOAP_ACTION, envelope);
// 得到返回結果
Object temp = envelope.getResult();
response = Boolean.parseBoolean(temp.toString());
} catch (Exception ex){
throw ex;
}
return response;

}
}
}

以上驗證程序需要訪問網絡，別忘了在AndroidManifest.xml加入 <uses-permission android:name="android.permission.INTERNET" />