java json 嵌套解析

// 引入相关的库 import com.google.gson.Gson; // 定义Java类来映射JSON数据 class Person { String name; int age; Address address; } class Address { String street; String city; } // 解析JSON数据 Gson gson = new Gson(); String json = "{\"name\":\"John\",\"age\":30,\"address\":{\"street\":\"123 Street\",\"city\":\"New York\"}}"; Person person = gson.fromJson(json, Person.class); System.out.println(person.name); System.out.println(person.address.city);