火通话

@Headers("Content-Type: application/json")
@POST("/set_data")
Call<CommonResponse> setPreferences(@Body RequestData request);

注意:使用Retrofit的GSON库

import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;

public class RequestData {

    @SerializedName("access_token")
    @Expose
    private String accessToken;

    @SerializedName("data")
    @Expose
    private Data data;
    // The above 'Data' is another similar class to add inner JSON objects. JSONObject within a JSONObject.

    public void setAccessToken(String accessToken) {
        this.accessToken = accessToken;
    }

    public void setData(Data data) {
        this.data = data;
    }
}

我想这将有所帮助，您可能已经拥有了所有集成，我们不需要任何花哨的东西来使用上面的代码片段。它非常适合我。

我特别喜欢Jake对上面TypedString子类的建议。实际上，您可以基于计划推送的POST数据类型创建各种子类，每个子类都有自己的自定义一致调整集。

您还可以选择在您的Retrofit API中为您的JSON POST方法添加头注释…

@Headers( "Content-Type: application/json" )
@POST("/json/foo/bar/")
Response fubar( @Body TypedString sJsonBody ) ;

但是使用子类显然是自文档化的。

@POST("/json/foo/bar")
Response fubar( @Body TypedJsonString jsonBody ) ;

经过如此多的努力，发现基本的区别是您需要发送JsonObject而不是JsonObject作为参数。

1)——添加依赖关系

 compile 'com.google.code.gson:gson:2.6.2'
compile 'com.squareup.retrofit2:retrofit:2.3.0'
compile 'com.squareup.retrofit2:converter-gson:2.3.0'

2)创建Api Handler类

    public class ApiHandler {


  public static final String BASE_URL = "URL";  

    private static Webservices apiService;

    public static Webservices getApiService() {

        if (apiService == null) {

           Gson gson = new GsonBuilder()
                    .setLenient()
                    .create();
            Retrofit retrofit = new Retrofit.Builder().addConverterFactory(GsonConverterFactory.create(gson)).baseUrl(BASE_URL).build();

            apiService = retrofit.create(Webservices.class);
            return apiService;
        } else {
            return apiService;
        }
    }


}

3)从Json模式2 pojo制作bean类

还记得 -目标语言:Java -源类型:JSON 注释风格:Gson -select包含getter和setter -你也可以选择允许附加属性

http://www.jsonschema2pojo.org/

4)建立API调用接口

    public interface Webservices {

@POST("ApiUrlpath")
    Call<ResponseBean> ApiName(@Body JsonObject jsonBody);

}

如果你有一个表单数据参数，那么在下面添加

@Headers("Content-Type: application/x-www-form-urlencoded")

其他方式的表单数据参数检查此链接

5)make JsonObject作为参数传递给body

 private JsonObject ApiJsonMap() {

    JsonObject gsonObject = new JsonObject();
    try {
        JSONObject jsonObj_ = new JSONObject();
        jsonObj_.put("key", "value");
        jsonObj_.put("key", "value");
        jsonObj_.put("key", "value");


        JsonParser jsonParser = new JsonParser();
        gsonObject = (JsonObject) jsonParser.parse(jsonObj_.toString());

        //print parameter
        Log.e("MY gson.JSON:  ", "AS PARAMETER  " + gsonObject);

    } catch (JSONException e) {
        e.printStackTrace();
    }

    return gsonObject;
}

6)像这样调用Api

private void ApiCallMethod() {
    try {
        if (CommonUtils.isConnectingToInternet(MyActivity.this)) {
            final ProgressDialog dialog;
            dialog = new ProgressDialog(MyActivity.this);
            dialog.setMessage("Loading...");
            dialog.setCanceledOnTouchOutside(false);
            dialog.show();

            Call<ResponseBean> registerCall = ApiHandler.getApiService().ApiName(ApiJsonMap());
            registerCall.enqueue(new retrofit2.Callback<ResponseBean>() {
                @Override
                public void onResponse(Call<ResponseBean> registerCall, retrofit2.Response<ResponseBean> response) {

                    try {
                        //print respone
                        Log.e(" Full json gson => ", new Gson().toJson(response));
                        JSONObject jsonObj = new JSONObject(new Gson().toJson(response).toString());
                        Log.e(" responce => ", jsonObj.getJSONObject("body").toString());

                        if (response.isSuccessful()) {

                            dialog.dismiss();
                            int success = response.body().getSuccess();
                            if (success == 1) {



                            } else if (success == 0) {



                            }  
                        } else {
                            dialog.dismiss();


                        }


                    } catch (Exception e) {
                        e.printStackTrace();
                        try {
                            Log.e("Tag", "error=" + e.toString());

                            dialog.dismiss();
                        } catch (Resources.NotFoundException e1) {
                            e1.printStackTrace();
                        }

                    }
                }

                @Override
                public void onFailure(Call<ResponseBean> call, Throwable t) {
                    try {
                        Log.e("Tag", "error" + t.toString());

                        dialog.dismiss();
                    } catch (Resources.NotFoundException e) {
                        e.printStackTrace();
                    }
                }

            });

        } else {
            Log.e("Tag", "error= Alert no internet");


        }
    } catch (Resources.NotFoundException e) {
        e.printStackTrace();
    }
}

我想比较排射的速度和改装的发送和接收数据，我写在下面的代码(改装部分)

第一个依赖:

dependencies {
     implementation 'com.squareup.retrofit2:retrofit:2.4.0'
     implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
}

然后界面:

 public interface IHttpRequest {

    String BaseUrl="https://example.com/api/";

    @POST("NewContract")
    Call<JsonElement> register(@Body HashMap registerApiPayload);
}

和一个函数来设置参数，张贴数据到服务器(在MainActivity):

private void Retrofit(){

    Retrofit retrofitRequest = new Retrofit.Builder()
            .baseUrl(IHttpRequest.BaseUrl)
            .addConverterFactory(GsonConverterFactory.create())
            .build();

    // set data to send
    HashMap<String,String> SendData =new HashMap<>();
    SendData.put("token","XYXIUNJHJHJHGJHGJHGRTYTRY");
    SendData.put("contract_type","0");
    SendData.put("StopLess","37000");
    SendData.put("StopProfit","48000");

    final IHttpRequest request=retrofitRequest.create(IHttpRequest.class);

    request.register(SendData).enqueue(new Callback<JsonElement>() {
        @Override
        public void onResponse(Call<JsonElement> call, Response<JsonElement> response) {
            if (response.isSuccessful()){
                Toast.makeText(getApplicationContext(),response.body().toString(),Toast.LENGTH_LONG).show();
            }
        }

        @Override
        public void onFailure(Call<JsonElement> call, Throwable t) {

        }
    });

}

对我来说，改装比截击更快。

在创建OkHttpClient时，将用于Retrofit。

像这样增加一个拦截器。

 private val httpClient = OkHttpClient.Builder()
        .addInterceptor (other interceptors)
        ........................................

        //This Interceptor is the main logging Interceptor
        .addInterceptor { chain ->
            val request = chain.request()
            val jsonObj = JSONObject(Gson().toJson(request))

            val requestBody = (jsonObj
            ?.getJSONObject("tags")
            ?.getJSONObject("class retrofit2.Invocation")
            ?.getJSONArray("arguments")?.get(0) ?: "").toString()
            val url = jsonObj?.getJSONObject("url")?.getString("url") ?: ""
            
            Timber.d("gsonrequest request url: $url")
            Timber.d("gsonrequest body :$requestBody")

            chain.proceed(request)
        }
        
        ..............
        // Add other configurations
        .build()

现在，您的每个Retrofit调用的URL和请求正文将被记录在Logcat中。用"gsonrequest"过滤