step1:在工程的build.gradle中添加依赖库
step2:使用Gson...
1) 数组转json 字符串
Gson g = new Gson();
String jsonString = g.toJson(labelInfo.boundingBox);
2) json字符串转数组
Gson gson = new Gson();
int [] rectValue = gson.fromJson(faceRectJson, new TypeToken<int []>() {
}.getType());
3) 自定义的实体类:
Gson gson = new Gson();
Response<User> response1 = gson.fromJson(fileInfoJson, new TypeToken<Response<User>>() {
}.getType());