json 工具类

package com.api.util;

import cn.hutool.core.util.StrUtil;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class HmoJsonUtils {
    /**
     * 解析json字符串
     * @return  List<Map<String, Object>>
     */
    public static List<Map<String, Object>> getListMapByJsonStr(String json) {
        if (StrUtil.isBlank(json)) {
            return new ArrayList<>();
        }
        ObjectMapper objectMapper = new ObjectMapper();
        try {
            return objectMapper.readValue(json, new TypeReference<List<Map<String, Object>>>() {
            });
        } catch (JsonProcessingException e) {
            e.printStackTrace();
        }
        return new ArrayList<>();
    }

    public static void main(String[] args) {
        // JSON字符串
        String json = "[{"name":"Alice", "age":25}, {"name":"Bob", "age":30}]";
        ObjectMapper objectMapper = new ObjectMapper();
        List<Map<String, Object>> list = null;
        try {
            list = objectMapper.readValue(json, new TypeReference<List<Map<String, Object>>>() {
            });
        } catch (JsonProcessingException e) {
            e.printStackTrace();
        }

        for (Map<String, Object> map : list) {
            System.out.println("Name: " + map.get("name"));
            System.out.println("Age: " + map.get("age"));
        }
    }
}

//Name: Alice
Age: 25
Name: Bob
Age: 30