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最近用springmvc开发系统 在后台用@responsebody自动转json到前台，一开始用list很ok，但是到了map 转出来的json缺是一大堆的对象 无法使用以前的数组遍历的方法 就是length为undefined 比如list转换的为["asd","zxc","qwe"] map转换为{"123":"asd","234":"zxc","345":"qwe"}
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Converting map to json is an object. In Java, JSONObjct is implemented internally by Map. The internal implementation of JSONArray is List. If it is a json array, it can only be linear such as list, array, set. How can map convert an array?
JSONObjct
Map
JSONArray
List
Question:
1、你是要把谁转成数组?键还是值? 2、Map是无顺的，那顺序怎么定?
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Converting map to json is an object. In Java,
JSONObjctis implemented internally byMap. The internal implementation ofJSONArrayisList. If it is a json array, it can only be linear such as list, array, set. How can map convert an array?Question: