Retrofit2 Login

Question

Ich versuche, meine Anmeldung zu konvertieren meine alten LoginActivity retrofit2 hier:

public class LoginActivity extends Activity { 
private static final String TAG = RegisterActivity.class.getSimpleName(); 

// GPSTracker class 
GPSTracker gps; 

private Button btnLogin; 
private Button btnLinkToRegister; 
private EditText inputEmail; 
private EditText inputPassword; 
private ProgressDialog pDialog; 
private SessionManager session; 
private SQLiteHandler db; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_login); 

    inputEmail = (EditText) findViewById(R.id.email); 
    inputPassword = (EditText) findViewById(R.id.password); 
    btnLogin = (Button) findViewById(R.id.btnLogin); 
    btnLinkToRegister = (Button) findViewById(R.id.btnLinkToRegisterScreen); 

    // Progress dialog 
    pDialog = new ProgressDialog(this); 
    pDialog.setCancelable(false); 

    // SQLite database handler 
    db = new SQLiteHandler(getApplicationContext()); 

    // Session manager 
    session = new SessionManager(getApplicationContext()); 

    // Check if user is already logged in or not 
    if (session.isLoggedIn()) { 
     // User is already logged in. Take him to main activity 
     Intent intent = new Intent(LoginActivity.this, MainActivity.class); 
     startActivity(intent); 
     finish(); 
    } 

    // Login button Click Event 
    btnLogin.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View view) { 
      String email = inputEmail.getText().toString().trim(); 
      String password = inputPassword.getText().toString().trim(); 

      // Check for empty data in the form 
      if (!email.isEmpty() && !password.isEmpty()) { 
       // login user 
       checkLogin(email, password); 
      } else { 
       // Prompt user to enter credentials 
       Toast.makeText(getApplicationContext(), 
         R.string.login_pleaseentercredentials, Toast.LENGTH_LONG) 
         .show(); 
      } 
     } 

    }); 

    // Link to Register Screen 
    btnLinkToRegister.setOnClickListener(new View.OnClickListener() { 

     public void onClick(View view) { 
      Intent i = new Intent(getApplicationContext(), 
        RegisterActivity.class); 
      startActivity(i); 
      finish(); 
     } 
    }); 

} 

/** 
* function to verify login details in mysql db 
* */ 
private void checkLogin(final String email, final String password) { 
    // Tag used to cancel the request 
    String tag_string_req = "req_login"; 

    pDialog.setMessage(getResources().getString(R.string.login_txt_loggingin)); 
    showDialog(); 

    StringRequest strReq = new StringRequest(Method.POST, 
      AppConfig.API_URL + "/login", new Response.Listener<String>() { 

     @Override 
     public void onResponse(String response) { 
      Log.d(TAG, "Login Response: " + response.toString()); 
      hideDialog(); 

      try { 
       JSONObject jObj = new JSONObject(response); 
       boolean error = jObj.getBoolean("error"); 

       // Check for error node in json 
       if (!error) { 
        // user successfully logged in 
        // Create login session 

        // Now store the user in SQLite 
        String uid = jObj.getString("uid"); 

        String name = jObj.getString("name"); 
        String email = jObj.getString("email"); 
        String created_at = jObj.getString("created_at"); 
        String apiKey = jObj.getString("apiKey"); 
        String status = jObj.getString("status"); 

        if(status.equals("1")) { 
         // Launch main activity 
         Intent intent = new Intent(LoginActivity.this, UserBlockedActivity.class); 
         startActivity(intent); 
         finish(); 
        } else { 
         session.setLogin(true); 

         // Inserting row in users table 
         db.addUser(name, email, uid, created_at, apiKey); 

         // Launch main activity 
         Intent intent = new Intent(LoginActivity.this, MainActivity.class); 
         startActivity(intent); 
         finish(); 
        } 
       } else { 
        // Error in login. Get the error message 
        String errorMsg = jObj.getString("message"); 

        if (errorMsg.equals("login_incorrectcredentials")) { 
         Toast.makeText(getApplicationContext(), R.string.login_incorrectcredentials, Toast.LENGTH_LONG).show(); 
        } else { 
         Toast.makeText(getApplicationContext(), errorMsg, Toast.LENGTH_LONG).show(); 
        } 
       } 
      } catch (JSONException e) { 
       // JSON error 
       e.printStackTrace(); 
       Toast.makeText(getApplicationContext(), "Json error: " + e.getMessage(), Toast.LENGTH_LONG).show(); 
      } 

     } 
    }, new Response.ErrorListener() { 

     @Override 
     public void onErrorResponse(VolleyError error) { 
      Log.e(TAG, "Login Error: " + error.getMessage()); 
      Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show(); 
      hideDialog(); 
     } 
    }) { 

     @Override 
     protected Map<String, String> getParams() { 
      // Posting parameters to login url 
      Map<String, String> params = new HashMap<String, String>(); 
      params.put("email", email); 
      params.put("password", password); 

      return params; 
     } 

    }; 

    // Adding request to request queue 
    AppController.getInstance().addToRequestQueue(strReq, tag_string_req); 
} 

private void showDialog() { 
    if (!pDialog.isShowing()) 
     pDialog.show(); 
} 

private void hideDialog() { 
    if (pDialog.isShowing()) 
     pDialog.dismiss(); 
} 
} 

Mein neues LoginActivity

public class LoginActivity extends AppCompatActivity { 

private static final String TAG = LoginActivity.class.getSimpleName(); 

private EditText inputEmail; 
private EditText inputPassword; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_login); 

    inputEmail = (EditText) findViewById(R.id.email); 
    inputPassword = (EditText) findViewById(R.id.password); 
} 

// When Button Login clicked 
public void Signin(View v) { 

    String email = inputEmail.getText().toString().trim(); 
    String password = inputPassword.getText().toString().trim(); 

    //Calling method of field validation 
    if (CheckFieldValidation()) { 

     ApiInterface apiService = 
       RestClient.getClient().create(ApiInterface.class); 

     HashMap<String, String> parameters = new HashMap<>(); 
     parameters.put("email", email); 
     parameters.put("password", password); 

     //Calling method to get check login 

     Call<LoginModal> call = apiService.Login(parameters); 
     call.enqueue(new Callback<LoginModal>() { 
      @Override 
      public void onResponse(Call<LoginModal> call, Response<LoginModal> response) { 
       if (response.body().getStatus().equals("1")) { 
        Toast.makeText(LoginActivity.this, "Logged in", Toast.LENGTH_SHORT).show(); 
       } else { 
        Toast.makeText(LoginActivity.this, "Invalid UserName/Pass ", Toast.LENGTH_SHORT).show(); 
       } 
      } 

      @Override 
      public void onFailure(Call<LoginModal> call, Throwable t) { 
       // something went completely south (like no internet connection) 
       Toast.makeText(LoginActivity.this, "An error occurred. Please try again", Toast.LENGTH_SHORT).show(); 
       Log.d("Error", t.getMessage()); 
      } 
     }); 

    } 
} 

//checking field are empty 
private boolean CheckFieldValidation() { 

    boolean valid = true; 
    if (inputEmail.getText().toString().equals("")) { 
     inputEmail.setError("Can't be Empty"); 
     valid = false; 
    } else if (inputPassword.getText().toString().equals("")) { 
     inputPassword.setError("Can't be Empty"); 
     valid = false; 
    } 

    return valid; 

} 
} 

Und mein RestClient sieht wie folgt aus:

public class RestClient { 

public static final String BASE_URL = "http://api.fitnessm8.dk/v2/"; 
private static Retrofit retrofit = null; 

public static Retrofit getClient() { 
    if (retrofit==null) { 

     HttpLoggingInterceptor interceptor = new HttpLoggingInterceptor(); 
     interceptor.setLevel(HttpLoggingInterceptor.Level.BODY); 
     OkHttpClient client = new OkHttpClient.Builder() 
       .addInterceptor(interceptor) 
       //.addInterceptor(REWRITE_CACHE_CONTROL_INTERCEPTOR) 
       .addNetworkInterceptor(new Interceptor() { 

        @Override 

        public okhttp3.Response intercept(Chain chain) throws IOException { 
         Request request = chain.request().newBuilder() 
           // .addHeader(Constant.Header, authToken) 
           .build(); 
         return chain.proceed(request); 
        } 
       }).build(); 

     retrofit = new Retrofit.Builder() 
       .baseUrl(BASE_URL) 
       .addConverterFactory(GsonConverterFactory.create()) 
       .client(client) 
       .build(); 
    } 
    return retrofit; 
    } 
} 

ApiInterface.java

public interface ApiInterface { 
    @FormUrlEncoded 
    @POST("login") 
    Call<LoginModal> Login(@Body HashMap<String, String> parameters); 
} 

LoginModal.java

public class LoginModal { 

@SerializedName("id") 
@Expose 
private String id; 
@SerializedName("fullname") 
@Expose 
private String fullname; 
@SerializedName("email") 
@Expose 
private String email; 
@SerializedName("api_key") 
@Expose 
private String apiKey; 
@SerializedName("status") 
@Expose 
private String status; 
@SerializedName("created_at") 
@Expose 
private String createdAt; 

/** 
* 
* @return 
* The id 
*/ 
public String getId() { 
    return id; 
} 

/** 
* 
* @param id 
* The id 
*/ 
public void setId(String id) { 
    this.id = id; 
} 

/** 
* 
* @return 
* The fullname 
*/ 
public String getFullname() { 
    return fullname; 
} 

/** 
* 
* @param fullname 
* The fullname 
*/ 
public void setFullname(String fullname) { 
    this.fullname = fullname; 
} 

/** 
* 
* @return 
* The email 
*/ 
public String getEmail() { 
    return email; 
} 

/** 
* 
* @param email 
* The email 
*/ 
public void setEmail(String email) { 
    this.email = email; 
} 

/** 
* 
* @return 
* The apiKey 
*/ 
public String getApiKey() { 
    return apiKey; 
} 

/** 
* 
* @param apiKey 
* The api_key 
*/ 
public void setApiKey(String apiKey) { 
    this.apiKey = apiKey; 
} 

/** 
* 
* @return 
* The status 
*/ 
public String getStatus() { 
    return status; 
} 

/** 
* 
* @param status 
* The status 
*/ 
public void setStatus(String status) { 
    this.status = status; 
} 

/** 
* 
* @return 
* The createdAt 
*/ 
public String getCreatedAt() { 
    return createdAt; 
} 

/** 
* 
* @param createdAt 
* The created_at 
*/ 
public void setCreatedAt(String createdAt) { 
    this.createdAt = createdAt; 
} 
} 

Dann bekomme ich versuchen, auf der App anmelden ich einen Fehler:

Verursacht durch: java.lang.IllegalArgumentException: @Body Parameter nicht mit Formular oder mehreren verwendet werden können, Teil Codierung. (Parameter # 1)

Ich bin neu in der Android-Entwicklung, also was ich falsch mache, ist im API Interface mit dem Körper, aber wie kann ich es zur Arbeit bringen? :)

Ich bin mit dem REST-API von androidhive, dieser Code aber ich geändert, meine App passen:

http://www.androidhive.info/2014/01/how-to-create-rest-api-for-android-app-using-php-slim-and-mysql-day-12-2/

Answer 1

Wenn Sie @FormUrlEncoded hinzufügen, die Daten in Form param1 gesendet wird = Wert1 & Param2 = Wert2, also Formularkodierung. Wenn Sie @Body verwenden, wird der Parameter in JSON konvertiert und gesendet. Abhängig von Ihrem serverseitigen Code sollten Sie einen auswählen, nicht beide.