使用改装的Android POST call获取服务器500错误

这似乎是一个非常简单的问题,但我无法解决。我调用的API在Postman中运行良好,并形成了应用程序的iOS版本。只是安卓让我大吃一惊。咖啡可能不够。我正在使用Android Studio进行最新更新。

API接受一个长URL作为JSON主体,并返回一个短URL作为字符串。

错误屏幕截图:

Android Error Screenshot

投递电话:

private void getShortURL() {
    //Get full url
    final String fullURL = Constants.SHARE_BASE_URI + urlParameters;

    //Convert URL to JSON formatted data
    Map<String,String> data = new HashMap<String,String>();
    data.put("URL",fullURL);
    String jsonData = new GsonBuilder().create().toJson(data,Map.class);

    //Call API and pass in JSON to get Short URL
    Call<ResponseBody> getDynamicLinkCall = RetrofitAdapter.getRetroInterface(Constants.BASE_URI).getDynamicLink_String(Constants.getTimestamp(),Constants.APPLICATION,"application/json", jsonData);

    getDynamicLinkCall.enqueue(new Callback<ResponseBody>() {
        @Override
        public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
            if (response == null ||  response.code() != Constants.SUCCESS) {
                //Share Short URL
                share(response.body().toString());
            }
            else
            {
                //If Short URl Failed share long URL
                share(fullURL);
            }
        }

        @Override
        public void onFailure(Call<ResponseBody> call, Throwable t) {
            //If Short URl Failed share long URL
            share(fullURL);
        }
    });
}

改装接口。JAVA

@POST("URLShortner")
Call<ResponseBody> getDynamicLink_String(@Header("TimeStamp") String timestamp, @Header("Application") String application, @Header("Content-Type") String contentType, @Body String jsonData);

邮差截图:

Screenshot from Postman showing Body settings

改装适配器代码:

package com.company.appname.util;
import android.content.Context;
import com.company.appname.Constants;
import java.net.CookieHandler;
import java.net.CookieManager;
import java.net.CookiePolicy;
import java.util.concurrent.TimeUnit;
import okhttp3.CookieJar;
import okhttp3.JavaNetCookieJar;
import okhttp3.OkHttpClient;
import retrofit2.Retrofit;
import retrofit2.converter.jackson.JacksonConverterFactory;

public class RetrofitAdapter {
    public static OkHttpClient okHttpClient;
    public static Context context;

public static RetrofitInterface getRetroInterface(String endPoint){
    return createRestAdapter(endPoint).create(RetrofitInterface.class);
}

public static Retrofit createRestAdapter(String endPoint){
    boolean isMobileAPI = false;

    //Check if the endpoint is the mobile api
    if(endPoint.equalsIgnoreCase(Constants.MOBILE_SERVICE_BASE_URI)){
        isMobileAPI = true;
    }

    //Create a rest adapter
    return  new Retrofit.Builder()
            .client(createOkClient(isMobileAPI))
            .baseUrl(endPoint)
            .addConverterFactory(JacksonConverterFactory.create())
            .build();
}

public static OkHttpClient createOkClient(boolean isMobileAPI){

    NextModel next = NextModel.getInstance();

    if(next.okClient == null || !isMobileAPI) {
        //Create ok http Client
        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
        //Set timeouts
        httpClient.readTimeout(Constants.TIMEOUT, TimeUnit.MILLISECONDS);
        httpClient.connectTimeout(Constants.TIMEOUT, TimeUnit.MILLISECONDS);

        CookieJar cookieJar = new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(context));

        //Add cookieJar to Http Client
        httpClient.cookieJar(cookieJar);

        //Create OkHttpClient
        okHttpClient = httpClient.build();

        return okHttpClient;
    }else{
        //Return already created okclient
        return next.okClient;
    }
}


public static OkHttpClient getOkClient() {
    return okHttpClient;
}

}

我错过了什么?

提前感谢!