如何使用wcf服务为android创建登录

时间：2013-12-16 15:57:48

标签： c# android wcf

我已经为登录创建了wcf服务methot。

我想在android客户端中执行登录操作。但是当我以JSON格式将对象发布到WCF服务时，我得到一个Null对象（在Wrapped配置中）或者我得到一个字段为空的对象（在Bare配置中）。有人有解决方案吗？

这是我的Iservice1 

[OperationContract]
    [WebInvoke(Method = "GET", ResponseFormat = WebMessageFormat.Json, RequestFormat = WebMessageFormat.Json, UriTemplate = "login?name={name}&password={password}")]
    string login(string name, string password);

这是我在Service1上的登录方法

public string login(string name, string password)
  {        

        ads_dbDataContext db = new lidhaj_dbDataContext();
        var messages = from p in db.tblUNI_WEB_Users
                       where p.Student== name && p.Password== password
                       select p;
        if (messages.Count() > 0)
        {
            return "1";
        }
        else
        {

            return "0";

        }


    }

这是我在android的客户端

public class MainActivity extends Activity {
Button b;
EditText et,pass;
TextView tv;
HttpPost httppost;
HttpGet httpget;
StringBuffer buffer;
HttpResponse response;
HttpClient httpclient;
List<NameValuePair> nameValuePairs;
ProgressDialog dialog = null;


SessionManager session;



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    session=new SessionManager(getApplicationContext());

    b = (Button)findViewById(R.id.btnLogin);
    et = (EditText)findViewById(R.id.txtShfrytezuesi);
    pass= (EditText)findViewById(R.id.txtFjakalimi);
    tv = (TextView)findViewById(R.id.txterrorloginmessage);

    b.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            dialog = ProgressDialog.show(MainActivity.this, "",
                    "Validating user...", true);
            new Thread(new Runnable() {
                public void run() {
                    login();
                }
            }).start();
        }
    });
}

void login(){
    try{

        httpclient=new DefaultHttpClient();

        httppost=new HttpPost("http://10.0.2.2/Service1.svc/login");


        nameValuePairs = new ArrayList<NameValuePair>(2);

        nameValuePairs.add(new BasicNameValuePair("name",et.getText().toString().trim()));  // $Edittext_value = $_POST['Edittext_value'];
        nameValuePairs.add(new BasicNameValuePair("password",pass.getText().toString().trim()));
        httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
        //Execute HTTP Post Request
        response=httpclient.execute(httppost);
        // edited by James from coderzheaven.. from here....
        ResponseHandler<String> responseHandler = new BasicResponseHandler();
        final String response = httpclient.execute(httppost, responseHandler);
        System.out.println("Response : " + response);
        runOnUiThread(new Runnable() {
            public void run() {
                tv.setText("response form wcf : " + response);
                dialog.dismiss();
            }
        });

        if(response.equalsIgnoreCase("1")){
            runOnUiThread(new Runnable() {
                public void run() {
                    Toast.makeText(MainActivity.this,"Login Success", Toast.LENGTH_SHORT).show();
                }
            });

           // startActivity(new Intent(MainActivity.this, Njoftimet_e_studentit.class));
        }else{
            showAlert();

        }

    }catch(Exception e){
        dialog.dismiss();
        System.out.println("Exception : " + e.getMessage());          
    }
}
public void showAlert(){
    MainActivity.this.runOnUiThread(new Runnable() {
        public void run() {
            AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
            builder.setTitle("Login Error.");
            builder.setMessage("User not Found.")
                    .setCancelable(false)
                    .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int id) {
                        }
                    });
            AlertDialog alert = builder.create();
            alert.show();
        }
    });
}

但这不起作用。 我在日志猫上收到此错误：

Exception : Not Found

这是我完整的日志猫：

12-16 16:22:55.854    1152-1152/? D/AndroidRuntime﹕ Calling main entry com.android.commands.am.Am
12-16 16:22:55.924       80-253/system_process I/ActivityManager﹕ START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.cmd.cmduniverziteti/.MainActivity} from pid 1152
12-16 16:22:55.964       80-253/system_process W/WindowManager﹕ Failure taking screenshot for (240x394) to layer 21005
12-16 16:22:56.064    1152-1152/? D/AndroidRuntime﹕ Shutting down VM
12-16 16:22:56.104    1163-1163/? D/dalvikvm﹕ Not late-enabling CheckJNI (already on)
12-16 16:22:56.114    1152-1165/? I/AndroidRuntime﹕ NOTE: attach of thread 'Binder Thread #3' failed
12-16 16:22:56.164    1152-1156/? D/dalvikvm﹕ GC_CONCURRENT freed 101K, 77% free 483K/2048K, paused 1ms+2ms
12-16 16:22:56.164    1152-1158/? D/jdwp﹕ Got wake-up signal, bailing out of select
12-16 16:22:56.164    1152-1158/? D/dalvikvm﹕ Debugger has detached; object registry had 1 entries
12-16 16:22:56.214       80-206/system_process I/ActivityManager﹕ Start proc com.cmd.cmduniverziteti for activity com.cmd.cmduniverziteti/.MainActivity: pid=1163 uid=10040 gids={3003}
12-16 16:22:56.414       80-108/system_process I/WindowManager﹕ createSurface Window{41b1aab8 Starting com.cmd.cmduniverziteti paused=false}: DRAW NOW PENDING
12-16 16:22:56.854       80-118/system_process W/NetworkManagementSocketTagger﹕ setKernelCountSet(10040, 1) failed with errno -2
12-16 16:22:59.294       80-222/system_process I/WindowManager﹕ createSurface Window{41a29c00 com.cmd.cmduniverziteti/com.cmd.cmduniverziteti.MainActivity paused=false}: DRAW NOW PENDING
12-16 16:22:59.604       80-118/system_process W/NetworkManagementSocketTagger﹕ setKernelCountSet(10005, 0) failed with errno -2
12-16 16:22:59.794    1163-1163/com.cmd.cmduniverziteti D/gralloc_goldfish﹕ Emulator without GPU emulation detected.
12-16 16:23:00.634    1163-1163/com.cmd.cmduniverziteti W/TextLayoutCache﹕ computeValuesWithHarfbuzz -- need to force to single run
12-16 16:23:00.722        80-80/system_process W/InputManagerService﹕ Starting input on non-focused client com.android.internal.view.IInputMethodClient$Stub$Proxy@41965210 (uid=10005 pid=177)
12-16 16:23:00.881       80-108/system_process I/ActivityManager﹕ Displayed com.cmd.cmduniverziteti/.MainActivity: +4s857ms
12-16 16:23:09.457    1163-1163/com.cmd.cmduniverziteti D/InputEventConsistencyVerifier﹕ KeyEvent: ACTION_UP but key was not down.
    in android.widget.EditText@4178fcf0
    0: sent at 22117781000000, KeyEvent { action=ACTION_UP, keyCode=KEYCODE_TAB, scanCode=15, metaState=0, flags=0x8, repeatCount=0, eventTime=22117781, downTime=22117691, deviceId=0, source=0x101 }
12-16 16:23:19.274    1163-1166/com.cmd.cmduniverziteti D/dalvikvm﹕ GC_CONCURRENT freed 170K, 3% free 14295K/14599K, paused 11ms+23ms
12-16 16:23:20.484      133-133/com.android.systemui D/dalvikvm﹕ GC_FOR_ALLOC freed 863K, 35% free 15865K/24391K, paused 282ms
12-16 16:23:22.034    1163-1163/com.cmd.cmduniverziteti D/InputEventConsistencyVerifier﹕ KeyEvent: ACTION_UP but key was not down.
    in android.widget.EditText@4178fcf0
    0: sent at 22130473000000, KeyEvent { action=ACTION_UP, keyCode=KEYCODE_TAB, scanCode=15, metaState=0, flags=0x8, repeatCount=0, eventTime=22130473, downTime=22130387, deviceId=0, source=0x101 }
    -- recent events --
    1: sent at 22125272000000, (unhandled) KeyEvent { action=ACTION_UP, keyCode=KEYCODE_DEL, scanCode=14, metaState=0, flags=0x8, repeatCount=0, eventTime=22125272, downTime=22125211, deviceId=0, source=0x101 }
    2: sent at 22125211000000, (unhandled) KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_DEL, scanCode=14, metaState=0, flags=0x8, repeatCount=0, eventTime=22125211, downTime=22125211, deviceId=0, source=0x101 }
    3: sent at 22123234000000, (unhandled) KeyEvent { action=ACTION_UP, keyCode=KEYCODE_DEL, scanCode=14, metaState=0, flags=0x8, repeatCount=0, eventTime=22123234, downTime=22123139, deviceId=0, source=0x101 }
    4: sent at 22123139000000, (unhandled) KeyEvent { action=ACTION_DOWN, keyCode=KEYCODE_DEL, scanCode=14, metaState=0, flags=0x8, repeatCount=0, eventTime=22123139, downTime=22123139, deviceId=0, source=0x101 }
    5: sent at 22123047000000, (unhandled) KeyEvent { action=ACTION_UP, keyCode=KEYCODE_DEL, scanCode=14, metaState=0, flags=0x8, repeatCount=0, eventTime=22123047, downTime=22122983, deviceId=0, source=0x101 }
12-16 16:23:28.524       80-253/system_process I/WindowManager﹕ createSurface Window{41a46ca0 com.cmd.cmduniverziteti/com.cmd.cmduniverziteti.MainActivity paused=false}: DRAW NOW PENDING
12-16 16:23:29.714    1163-1179/com.cmd.cmduniverziteti W/SingleClientConnManager﹕ Invalid use of SingleClientConnManager: connection still allocated.
    Make sure to release the connection before allocating another one.
12-16 16:23:30.093    1163-1179/com.cmd.cmduniverziteti I/System.out﹕ Exception : Not Found
12-16 16:23:30.113    1163-1179/com.cmd.cmduniverziteti I/System.out﹕ nje error ka ndodhur ne konnektim
12-16 16:23:30.668        80-92/system_process W/InputManagerService﹕ Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@417ce870

1 个答案:

答案 0 :(得分：0)

警告：这不会直接回答您的问题，但它确实提供了另一种实现方式。

我建议使用WebAPI而不是WCF来与Android客户端进行通信。 WebAPI实现了可以更容易被Android使用的RESTful，JSON Web服务，并且比WCF更容易编写。请参阅http://www.asp.net/web-api开始使用。如果您熟悉ASP.Net MVC，切换到WebAPI应该是轻而易举的。

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