如何通过改造获得 POJO 和原始响应字符串？

Question

FATAL EXCEPTION: main Process: com.packagename, PID: 11371 java.lang.IllegalStateException: Cannot read raw response body of a converted body.

In retrofit, you can only ever read response.body() once, since it's a stream and it automatically closes once you call .string() or when it auto-converts to whatever model class you have in Response<T> return type. If you try to read twice, then you get the above error.

I need both the raw response string as well as the model class . What's the best way to do this? I do not want to make the API call twice. Is there some way to duplicate the response body? Ideally, I'd like to simply get String and T back with the response. That is, to not have to give up the generic type converter goodies that come with retrofit

Answer 1

You could get the raw response body by adding an interceptor ( https://square.github.io/okhttp/interceptors/ ) and copying the responsebody BufferedSource before returning the response. I'm having trouble seeing why someone would want to do this though.

Response response = chain.proceed(request);
ResponseBody responseBody = response.body();

ByteArrayOutputStream output = new ByteArrayOutputStream();
responseBody.source().getBuffer().copyTo(output);
String rawResponseBody = output.toString();

return response;

Answer 2

example for model class:

public class Post {
    @SerializedName("text")
    private String text;
    private User   user;

    public String getText() {
        return text;
    }

    public User getUser() {
        return user;
    }
}

class User{
    @SerializedName("id")
    private int id;
    @SerializedName("name")
    private String name;

    public int getId() {
        return id;
    }

    public String getName() {
        return name;
    }
}}

for better answer: put your model class and onResponse method body in your question