1、Gson
依赖
implementation 'com.google.code.gson:gson:2.8.6'Gson gson = new Gson();实体类(Bean)转JSON
String json = gson.toJson(new Bean());JSON转实体类(Bean)
Bean b = gson.fromJson('json',Bean.class);Map转Json
gson.toJson(map)Json转Map
Map map = gson.fromJson("json",new TypeToken>() {}.getType()); List 转JSON
LList list = new ArrayList<>();
list.add(new Bean());
gson.toJson(list) JSON转List
List list = gson.fromJson('json',new TypeToken>(){}.getType()); 2、FastJson
依赖
implementation 'com.alibaba:fastjson:1.2.70'实体类(Bean)转JSON
JSON.toJSONString(new Bean())JSON转实体类(Bean)
Bean b = JSON.parseObject('json',Bean.class);Map转Json
JSON.toJSONString('map')Json转Map
JSONObject jsonObject = JSONObject.parseObject(JSON.toJSONString(new Bean()));
Map map = (Map)jsonObject;
Object object = map.get("array"); List 转JSON
List list = new ArrayList<>();
list.add(new Bean());
JSON.toJSONString(list) JSON转List
JSON.parseArray('json',Bean.class);3、JackJson
依赖
implementation 'com.fasterxml.jackson.core:jackson-databind:2.11.0'需要 throws JsonProcessingException
private static ObjectMapper MAPPER = new ObjectMapper();
实体类(Bean)转JSON
MAPPER.writeValueAsString(new Bean())JSON转实体类(Bean)
MAPPER.readValue('json', Bean.class)Map转Json
MAPPER.writeValueAsString('map')Json转Map
Map map = MAPPER.readValue('json',Map.class);List 转JSON
List list = new ArrayList<>();
list.add(new Bean());
String ljson = MAPPER.writeValueAsString(list); JSON转List
MAPPER.readValue('json', ArrayList.class)4、ProtoBuf
配置依赖 具体配置查看 demo
implementation 'com.googlecode.protobuf-java-format:protobuf-java-format:1.2'ProtoBuf转Json
BeanBuf beanBuf = BeanBuf.newBuilder().setName("测试").build();
String jsonFormat = JsonFormat.printToString(beanBuf);Json转ProtoBuf
BeanBuf bean = BeanBuf.newBuilder().build();
JsonFormat.merge('json', bean.toBuilder());Proto序列化
BeanBuf bean = BeanBuf.newBuilder().setAge(11111111).build();
byte[] byteArray1 = bean.toByteArray();
Arrays.toString(byteArray1)Proto反序列化
BeanBuf bean = BeanBuf.newBuilder().setAge(11111111).build();
try {
BeanBuf buf = BeanBuf.parseFrom(bean.toByteArray());
mBinding.textView.setText(buf.toString());
} catch (IOException e) {
e.printStackTrace();
}