使用Moshi处理服务器响应失败 [英] Broken server response handling with Moshi

问题描述

服务器的预期json响应应为:

The expected json response from server should be :

{
  "teacher": {
    "123": {
      "_id": "389",
      "name": "test_fast_teacher1"
    }
  }
}

服务器返回json:

{
  "teacher": [

  ]
}

无论如何处理这个损坏的json响应? 在我从Gson切换之前，该教师对象仍将反序列化，只是它将为null.通过使用Moshi，将抛出错误，并且我无法继续正确序列化的其他json.

Anyway to handle this broken json response? Before I switching from Gson, the teacher object will still be deserialised, just that it will be null. By using Mos the error would be threw and I can't proceed with the other json which is serialised correctly.

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推荐答案

这样的事情怎么样?

Moshi moshi = new Moshi.Builder()
    .add(DefaultOnDataMismatchAdapter.newFactory(Teacher.class, null))
    .build();

JsonAdapter<Teacher> adapter = moshi.adapter(Teacher.class);

Teacher teacher = adapter.fromJson(json);
// teacher == null

其中DefaultOnDataMismatchAdapter是您可以将Jesse的代码复制到代码库中.

当Teacher类型以意外的格式返回时，会产生JsonDataException，它将默认返回到您的设置值(在这种情况下为null).

When the Teacher type comes back in an unexpected format that would produce a JsonDataException, it will default back to your set value (in this case, null).

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