fastjson和jackson序列化数据的区别

Riva ·

更新时间:2024-09-20

· 950 次阅读

fastjson和jackson序列化数据的区别直奔主题一言不合就上代码注意 直奔主题

1、fastjson将字符串反序列化为对象时，只会处理第一层，内部会序列化为JsonObject或者JsonArray，使用二级结构和三级结构时还要再次处理，优点就是快，特别快。
2、jackson会将深层字符串一起序列化

一言不合就上代码

public class Demo {
    public static void main(String [] args){
        String orderInfo = "{\n" +
                "\"orderId\":\"100\",\n" +
                "\"orderCode\":\"O3138141\",\n" +
                "\"orderGoodsInfo\":[\n" +
                "{\n" +
                "\"orderGoodsId\":\"4000\",\n" +
                "\"orderGoodsName\":\"鞋子\"\n" +
                "},{\n" +
                "\"orderGoodsId\":\"5000\",\n" +
                "\"orderGoodsName\":\"袜子\"\n" +
                "}\n" +
                "],\n" +
                "\"address\":{\n" +
                "\"provCode\":\"1907\",\n" +
                "\"provName\":\"江苏省\",\n" +
                "\"provEnName\":\"jiangsusheng\",\n" +
                "\"provEnHeader\":\"j\",\n" +
                "\"detail\":\"江苏省南京市软件大道\"\n" +
                "}\n" +
                "}";
        System.out.println(orderInfo);
        System.out.println("\n\n\n======================== fastjson ===========================");
        LinkedHashMap fastjson = JSON.parseObject(orderInfo, LinkedHashMap.class);
        fastjson.forEach((key, value) -> {
            String valueType = value.getClass().getName();
            System.out.println(key + " ===== " + value + " ====== " + valueType);
        });
        System.out.println("\n\n\n======================== jackson ===========================");
        LinkedHashMap jackson = JsonTools.defaultMapper().fromJson(orderInfo, LinkedHashMap.class);
        jackson.forEach((key, value) -> {
            String valueType = value.getClass().getName();
            System.out.println(key + " ===== " + value + " ====== " + valueType);
        });
    }
}

运行结果：
在这里插入图片描述看到以上的序列化结果的区别了吧