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                [TOC] # Json的格式與解析 json有兩種格式: 1)對象格式:`{"key1":obj,"key2":obj,"key3":obj...}` 2)數組/集合格式:`[obj,obj,obj...]` 例如:user對象 用json數據格式表示 `{"username":"zhangsan","age":28,"password":"123","addr":"北京"}` List<Product> 用json數據格式表示 `[{"pid":"10","pname":"小米4C"},{},{}]` 注意:對象格式和數組格式可以互相嵌套 注意:json的key是字符串 jaon的value是Object # Json的轉換插件 將java的對象或集合轉成json形式字符串 json的轉換插件是通過java的一些工具,直接將java對象或集合轉換成json字符串。 常用的json轉換工具有如下幾種: 1)jsonlib 2)Gson:google 3)fastjson:阿里巴巴
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