鍦↗ava涓紝鍙互浣跨敤Jackson搴撲腑鐨凧sonNode绫绘潵澶勭悊澶嶆潅鐨凧SON鏁版嵁銆備互涓嬫槸涓€涓畝鍗曠殑绀轰緥锛屾紨绀哄浣曚娇鐢↗sonNode澶勭悊澶嶆潅JSON鏁版嵁锛?/p>

鍋囪鏈変互涓婮SON鏁版嵁锛?/p>

{
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York"
  },
  "children": [
    {
      "name": "Alice",
      "age": 5
    },
    {
      "name": "Bob",
      "age": 8
    }
  ]
}

鍙互浣跨敤JsonNode鏉ヨ鍙栧拰鎿嶄綔杩欎釜JSON鏁版嵁锛?/p>

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class Main {
    public static void main(String[] args) {
        String json = "{\"name\":\"John\",\"age\":30,\"address\":{\"street\":\"123 Main St\",\"city\":\"New York\"},\"children\":[{\"name\":\"Alice\",\"age\":5},{\"name\":\"Bob\",\"age\":8}]}";

        try {
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode rootNode = objectMapper.readTree(json);

            String name = rootNode.get("name").asText();
            int age = rootNode.get("age").asInt();
            String street = rootNode.get("address").get("street").asText();
            String city = rootNode.get("address").get("city").asText();

            System.out.println("Name: " + name);
            System.out.println("Age: " + age);
            System.out.println("Street: " + street);
            System.out.println("City: " + city);

            JsonNode children = rootNode.get("children");
            for (JsonNode child : children) {
                String childName = child.get("name").asText();
                int childAge = child.get("age").asInt();
                System.out.println("Child name: " + childName);
                System.out.println("Child age: " + childAge);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

涓婇潰鐨勭ず渚嬩唬鐮佹紨绀轰簡濡備綍浣跨敤JsonNode绫绘潵璇诲彇澶嶆潅鐨凧SON鏁版嵁銆傞鍏堬紝鎴戜滑浣跨敤ObjectMapper绫诲皢JSON瀛楃涓茶浆鎹负JsonNode瀵硅薄銆傜劧鍚庯紝鎴戜滑鍙互浣跨敤get()鏂规硶鍜宎sXxx()鏂规硶鏉ヨ幏鍙朖SON瀵硅薄鐨勫睘鎬у€硷紝骞惰繘琛岀浉搴旂殑澶勭悊銆?/p>

閫氳繃浠ヤ笂鏂规硶锛屽彲浠ュ緢瀹规槗鍦板鐞嗗鏉傜殑JSON鏁版嵁锛屾彁鍙栨墍闇€鐨勪俊鎭苟杩涜杩涗竴姝ョ殑澶勭悊銆?/p>