json的几种标准格式

#json的几种标准格式| 来源: 网络整理| 查看: 265

目录 1、简介2、JSON的标准格式2.1 JSON数值2.2 JSON字符串2.3 JSON数组2.4 JSON对象2.5 JSON对象数组2.6 JSON数组对象

1、简介

什么是 JSON ？

JSON 指的是 JavaScript 对象表示法（JavaScript Object Notation）JSON 是轻量级的文本数据交换格式JSON 独立于语言JSON 具有自我描述性，更易理解JSON 使用 JavaScript 语法来描述数据对象，但是 JSON 仍然独立于语言和平台。JSON 解析器和 JSON 库支持许多不同的编程语言。

w3c的标准说明如下： JSON(JavaScript Object Notation) 是一种轻量级的数据交换格式。易于人阅读和编写。同时也易于机器解析和生成。它基于JavaScript Programming Language, Standard ECMA-262 3rd Edition - December 1999的一个子集。 JSON采用完全独立于语言的文本格式，但是也使用了类似于C语言家族的习惯（包括C, C++, C#, Java, JavaScript, Perl, Python等）。这些特性使JSON成为理想的数据交换语言。

2、JSON的标准格式

JSON具有以下这些形式：对象是一个无序的“‘名称/值’对”集合。一个对象以“{”（左括号）开始，“}”（右括号）结束。每个“名称”后跟一个“:”（冒号）；“‘名称/值’ 对”之间使用“,”（逗号）分隔。

2.1 JSON数值格式：{ “key” : value}示例： {“key1”:100,“key2”:20} { "key1":100, "key2":20 } 2.2 JSON字符串格式：{ “key” : “value”}示例： {“key1” : “张三”,“key2” : “大忽悠”} { "key1" : "张三", "key2" : "大忽悠" } 2.3 JSON数组格式：{ “key” : [value]}示例：{key" : [000, 111111],“key1” : [18874, 15157]} { "key" : [000, 111111], "key1" : [18874, 15157] } 2.4 JSON对象格式：{ “key” : {value}}示例： {“key” : {“1”: “亚索”},“key1” : {“2”: “刘备”}} { "key" : {"1": "亚索"}, "key1" : {"2": "刘备"} } 2.5 JSON对象数组格式：{ “key” : [{“key1”: “value1”},{“key2”: “value2”}]}示例：{“我”:[{“key”: “好好学习”},{“key1”:“天天向上”}]} { "我" : [ {"key": "好好学习"}, {"key1": "天天向上"} ] } 2.6 JSON数组对象格式：{“key”:{“key1”:[value1,value2]}}示例：{“我”:{“你” : [18874,15157]}} { "我" : { "你" : [18874,15157] } }

综合运用示例：

{"cm":{"ln":"-55.0","sv":"V2.9.6","os":"8.0.4","g":"[email protected]","mid":"489","nw":"3G","l":"es","vc":"4","hw":"640*960","ar":"MX","uid":"489","t":"1593123253541","la":"5.2","md":"sumsung-18","vn":"1.3.4","ba":"Sumsung","sr":"I"},"ap":"app","et":[{"ett":"1593050051366","en":"loading","kv":{"extend2":"","loading_time":"14","action":"3","extend1":"","type":"2","type1":"201","loading_way":"1"}},{"ett":"1593108791764","en":"ad","kv":{"activityId":"1","displayMills":"78522","entry":"1","action":"1","contentType":"0"}},{"ett":"1593111271266","en":"notification","kv":{"ap_time":"1593097087883","action":"1","type":"1","content":""}},{"ett":"1593066033562","en":"active_background","kv":{"active_source":"3"}},{"ett":"1593135644347","en":"comment","kv":{"p_comment_id":1,"addtime":"1593097573725","praise_count":973,"other_id":5,"comment_id":9,"reply_count":40,"userid":7,"content":"辑赤蹲慰鸽抿肘捎"}}],"id":"1593136280858"}

看着不方便，用解析器解析一下：

{ "cm":{ "ln":"-55.0", "sv":"V2.9.6", "os":"8.0.4", "g":"[email protected]", "mid":"489", "nw":"3G", "l":"es", "vc":"4", "hw":"640*960", "ar":"MX", "uid":"489", "t":"1593123253541", "la":"5.2", "md":"sumsung-18", "vn":"1.3.4", "ba":"Sumsung", "sr":"I" }, "ap":"app", "et":[ { "ett":"1593050051366", "en":"loading", "kv":{ "extend2":"", "loading_time":"14", "action":"3", "extend1":"", "type":"2", "type1":"201", "loading_way":"1" } }, { "ett":"1593108791764", "en":"ad", "kv":{ "activityId":"1", "displayMills":"78522", "entry":"1", "action":"1", "contentType":"0" } }, { "ett":"1593111271266", "en":"notification", "kv":{ "ap_time":"1593097087883", "action":"1", "type":"1", "content":"" } }, { "ett":"1593066033562", "en":"active_background", "kv":{ "active_source":"3" } }, { "ett":"1593135644347", "en":"comment", "kv":{ "p_comment_id":1, "addtime":"1593097573725", "praise_count":973, "other_id":5, "comment_id":9, "reply_count":40, "userid":7, "content":"辑赤蹲慰鸽抿肘捎" } } ], "id":"1593136280858" }

【本文地址】

公司简介

联系我们