本文出自:https://github.com/alibaba/fastjson/wiki/Samples-DataBind
import com.alibaba.fastjson.JSON; Group group = new Group(); group.setId(0L); group.setName("admin"); User guestUser = new User(); guestUser.setId(2L); guestUser.setName("guest"); User rootUser = new User(); rootUser.setId(3L); rootUser.setName("root"); group.addUser(guestUser); group.addUser(rootUser); String jsonString = JSON.toJSONString(group); System.out.println(jsonString);
{"id":0,"name":"admin","users":[{"id":2,"name":"guest"},{"id":3,"name":"root"}]}
String jsonString = ...; Group group = JSON.parseObject(jsonString, Group.class);