Retrofit入门--Json解析

public classCustomGsonConverterFactoryextendsConverter.Factory {

private  finalMediaTypeMEDIA_TYPE= MediaType.parse("application/json; charset=UTF-8");

private  finalCharsetUTF_8= Charset.forName("UTF-8");

private finalGsongson;

privateCustomGsonConverterFactory(Gson gson) {

if(gson ==null)throw newNullPointerException("gson == null");

this.gson= gson;

}

public staticCustomGsonConverterFactorycreate() {

returncreate(newGson());

}

public staticCustomGsonConverterFactorycreate(Gson gson) {

return newCustomGsonConverterFactory(gson);

}

@Override

publicConverterresponseBodyConverter(Type type,Annotation[] annotations,Retrofit retrofit) {

TypeAdapter adapter =gson.getAdapter(TypeToken.get(type));

return newCustomGsonResponseBodyConverter<>(gson,adapter);

}

@Override

publicConverterrequestBodyConverter(Type type,Annotation[] parameterAnnotations,Annotation[] methodAnnotations,Retrofit retrofit) {

TypeAdapter adapter =gson.getAdapter(TypeToken.get(type));

return newCustomGsonRequestBodyConverter<>(gson,adapter);

}

final classCustomGsonRequestBodyConverterimplementsConverter {

private finalGsongson;

private finalTypeAdapteradapter;

CustomGsonRequestBodyConverter(Gson gson,TypeAdapter adapter) {

this.gson= gson;

this.adapter= adapter;

}

@Override

publicRequestBodyconvert(Tvalue)throwsIOException {

Buffer buffer =newBuffer();

Writer writer =newOutputStreamWriter(buffer.outputStream(),UTF_8);

JsonWriter jsonWriter =gson.newJsonWriter(writer);

adapter.write(jsonWriter,value);

jsonWriter.close();

returnRequestBody.create(MEDIA_TYPE,buffer.readByteString());

}

}

final classCustomGsonResponseBodyConverterimplementsConverter {

private finalGsongson;

private finalTypeAdapteradapter;

CustomGsonResponseBodyConverter(Gson gson,TypeAdapter adapter) {

this.gson= gson;

this.adapter= adapter;

}

@Override

publicTconvert(ResponseBody value)throwsIOException {

String response = value.string();

HttpStatus httpStatus =gson.fromJson(response,HttpStatus.class);

if(httpStatus.isCodeInvalid()) {

value.close();

throw newApiException(httpStatus.getCode(),httpStatus.getMessage());

}

MediaType contentType = value.contentType();

Charset charset = contentType !=null? contentType.charset(UTF_8) :UTF_8;

InputStream inputStream =newByteArrayInputStream(response.getBytes());

Reader reader =newInputStreamReader(inputStream,charset);

JsonReader jsonReader =gson.newJsonReader(reader);

try{

returnadapter.read(jsonReader);

}finally{

value.close();

}

}

}

}

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