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();
}
}
}
}
