Android Retrofit 2:随机代码400 (错误请求)响应

public interface ApiService {
    @GET("endpoint")
    Call<ResponseBody> getData(@Query("param") String param);

    @POST("endpoint")
    Call<ResponseBody> postData(@Body RequestBody body);
}

// 创建 Retrofit 实例
Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("https://api.example.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build();

// 创建服务实例
ApiService apiService = retrofit.create(ApiService.class);

// 发送 GET 请求
Call<ResponseBody> callGet = apiService.getData("value");
callGet.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
        if (response.isSuccessful()) {
            // 处理成功响应
        } else {
            // 处理错误响应，例如 HTTP 400
            Log.e("API Error", "Error Code: " + response.code());
        }
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        // 处理网络请求失败
        Log.e("API Failure", t.getMessage());
    }
});

// 发送 POST 请求
RequestBody requestBody = RequestBody.create(MediaType.parse("application/json"), "{\"key\":\"value\"}");
Call<ResponseBody> callPost = apiService.postData(requestBody);
callPost.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call, Response<ResponseBody> response) {
        // 处理响应
    }

    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        // 处理失败
    }
});