fastjson和和jackson序列化数据的区别序列化数据的区别
fastjson和和jackson序列化数据的区别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
一言不合就上代码一言不合就上代码
public class Demo {
public static void main(String [] args){
String orderInfo = "{" +
"\"orderId\":\"100\"," +
"\"orderCode\":\"O3138141\"," +
"\"orderGoodsInfo\":[" +
"{" +
"\"orderGoodsId\":\"4000\"," +
"\"orderGoodsName\":\"鞋子\"" +
"},{" +
"\"orderGoodsId\":\"5000\"," +
"\"orderGoodsName\":\"袜子\"" +
"}" +
"]," +
"\"address\":{" +
"\"provCode\":\"1907\"," +
"\"provName\":\"江苏省\"," +
"\"provEnName\":\"jiangsusheng\"," +
"\"provEnHeader\":\"j\"," +
"\"detail\":\"江苏省南京市软件大道\"" +
"}" +
"}";
System.out.println(orderInfo);
System.out.println("======================== 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("======================== 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：
看到以上的序列化结果的区别了吧
注意注意
如果不知名反序列化的数据结构， fastjson会按照HashMap处理， 而jackson 按照 LinkedHashMap 处理
作者：*大魔王*
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