改造2-响应状态为422(不可处理实体)时，响应主体为null [英] Retrofit 2 - Response body null when response status is 422 (unprocessable entity)

问题描述

我正在使用Retrofit在Web服务器中发出POST请求.

I'm using Retrofit to make a POST Request in my web server.

但是，当响应状态为422 (unprocessable entity)时，我似乎无法获得响应正文.响应正文始终为null.

However, I can't seem to get the response body when the response status is 422 (unprocessable entity). The response body is always null.

我想知道我是否做错了什么，或者是否有解决方法.因为我在请求中使用了与邮递员的相同json，并且它正常返回身体.

I want to know if I'm doing something wrong or if there's a workaround for this. Because I'm using the same json in the request with Postman, and it returns the body normally.

这是方法:

@Headers("Content-Type: application/vnd.api+json")
@POST("my_endpoint")
Call<JsonObject> postEntry(@Header("Authorization") String authorization, @Body JsonObject json);

主体是一个JsonObject，我没有像文档所说的那样进行序列化.但是我不认为这是问题所在.

The body is a JsonObject, I'm not serializing like the documentation say. But I don't think this is the problem.

推荐答案

默认情况下，服务器返回错误代码response.body()时始终为null.您要查找的是response.errorBody().常见的方法是这样的:

By default, when your server is returning an error code response.body() is always null. What you are looking for is response.errorBody(). A common approach would be something like this:

    @Override
    public void onResponse(Response<JsonObject> response, Retrofit retrofit) {
        if (response.isSuccess()) {
            response.body(); // do something with that
        } else {
            response.errorBody(); // do something with that
        }
    }

如果您需要真正高级的东西，请查看拦截器和如何使用它们

If you need something really advanced take a look at Interceptors and how to use them

这篇关于改造2-响应状态为422(不可处理实体)时，响应主体为null的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！