java为什么我在POST上遇到500服务器错误？

2 日，15 小时 Questions & Answers 132

我无法通过post方法获取密钥（令牌），当我运行应用程序时，它显示了一个错误（500），响应为空，我尝试了很多次，但找不到正常的解决方案。为了清楚起见，我将Hometask和代码放在下面：

所以家庭任务是：

创建一页授权，其中有两个字段-合作伙伴登录和密码

测试的合作伙伴帐户：

密码：密码

1）授权：

http://client-api.instaforex.com/Home/GetAPIUsageInfo

您需要获得令牌“requestmobbinetapitoken”

请求URL:http://client-api.instaforex.com/api/Authentication/RequestMoblieCabinetApiToken

方法：邮寄

请求：

{

“登录”：“合作伙伴登录”

“密码”：“合作伙伴密码”

}

作为回应，您将获得“密钥”（您的令牌）

我的代码：

ApiInterface

package com.example.instaforexapp.Rest;
import com.example.instaforexapp.Modal.ApiAccount;

import retrofit2.Call;
import retrofit2.http.Body;
import retrofit2.http.Field;
import retrofit2.http.FormUrlEncoded;
import retrofit2.http.POST;

public interface InstaForexApi {

    @FormUrlEncoded
    @POST("api/Authentication/RequestMoblieCabinetApiToken")
    Call<ApiAccount> createAccount( @Field("Login") String login,
                                    @Field("Password") String password);

}

ApiClient

package com.example.instaforexapp.Rest;

import okhttp3.OkHttpClient;
import okhttp3.logging.HttpLoggingInterceptor;
import retrofit2.Retrofit;
import retrofit2.converter.gson.GsonConverterFactory;

public class ApiClient {

    private static final String BASE_URL = "http://client-api.instaforex.com/";

    private static Retrofit retrofit = null;

    public static Retrofit getRetrofit() {
        HttpLoggingInterceptor httpLoggingInterceptor = new HttpLoggingInterceptor();
        httpLoggingInterceptor.level(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient okHttpClient = new OkHttpClient.Builder()
                .addInterceptor(httpLoggingInterceptor)
                .build();
        if (retrofit == null) {

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

ApiAccount Class

import com.google.gson.annotations.SerializedName;

public class ApiAccount {

    @SerializedName("Login")
    private String login;

    @SerializedName("Password")
    private String password;

    public ApiAccount(String login, String password) {
        this.login = login;
        this.password = password;
    }

    public String getLogin() {
        return login;
    }

    public String getPassword() {
        return password;
    }

}

MainActivity

import 安卓.support.v7.app.AppCompatActivity;
import 安卓.os.Bundle;
import 安卓.util.Log;
import 安卓.view.View;
import 安卓.widget.Button;
import 安卓.widget.EditText;
import 安卓.widget.Toast;

import com.example.instaforexapp.Modal.ApiAccount;
import com.example.instaforexapp.Rest.ApiClient;
import com.example.instaforexapp.Rest.InstaForexApi;

import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;

public class MainActivity extends AppCompatActivity {
    private EditText txt_login,txt_password;
    private Button btn_confirm;
    public static final String TAG = "com.MainActivity";

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

        txt_login = findViewById(R.id.txt_login);
        txt_password = findViewById(R.id.txt_pass);
        btn_confirm = findViewById(R.id.btn_confirm);
        btn_confirm.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String login = txt_login.getText().toString();
                String password= txt_password.getText().toString();
                createAccount(login,password);
                Log.i(TAG, "login :"+login +" password: "+password);

            }
        });


    }

    private void createAccount(String login,String password){
            InstaForexApi api = ApiClient.getRetrofit().create(InstaForexApi.class);
            Call<ApiAccount> call = api.createAccount(login,password);
            call.enqueue(new Callback<ApiAccount>() {
                @Override
                public void onResponse( Call<ApiAccount> call, Response<ApiAccount> response) {
                    if (!response.isSuccessful()){
                        Toast.makeText(MainActivity.this, "Error: "+response.code(),
                                Toast.LENGTH_SHORT).show();
                    }

                    ApiAccount account = response.body();
                    String toast = null;
                    if (account != null) {
                        toast = account.getLogin()+" : " + account.getPassword();
                    }
                    Toast.makeText(MainActivity.this, toast, Toast.LENGTH_SHORT).show();


                }

                @Override
                public void onFailure(Call<ApiAccount> call, Throwable t) {
                    Toast.makeText(MainActivity.this, t.getMessage(),
                            Toast.LENGTH_SHORT).show();

                }
            });


    }
}

请帮助获取“密钥”

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