JSON 对象中值的顺序是否重要

我的问题是，JSON对象的顺序在服务器端真的很重要吗？

这should not件事很重要.根据各种JSON规范，属性的顺序并不重要.例如:

"对象是一组无序的名称/值对."(来源json.org)

对象是零个或多个名称/值对的无序集合，其中名称是字符串，值是字符串、数字、布尔值、null、对象或数组(来源RFC 7159)

Unfortunately, there are nitwits out there¹ who ignore that aspect of the specs, and place some significance on the order of the attributes. (The mistake is usually made when there is a disconnect between the people specifying the APIs and those implementing them, and the people doing the specification work don't really understand JSON.)

Fortunately, the chances are that whoever designed / implemented the server didn't make that mistake. Most Java JSON parsers I've come across don't preserve the attribute order when parsing ... by default². It would be hard to accidentally implement a server where the order of the JSON attributes being parsed was significant.

If yes, how can i change the order?

在困难的情况下，我担心:

• You could generate the JSON by hand.
• There is at least one JSON for java implementation³ that allows you to supply the Map object that holds a JSON object's attributes. If you use a LinkedHashMap or TreeMap, it should retain the insertion order or the lexical order of the attribute keys.

^{1-例如，这个可怜的开发者为之工作的傻瓜...https://stackoverflow.com/a/4515863/139985}

^{2-RFC 7159也这样说:"人们观察到JSON解析库在是否使调用软件的对象成员的顺序可见方面存在差异.Implementations whose behavior does not depend on member ordering will be interoperable in the sense that they will not be affected by these differences.".据我所知，这建议JSON库should对应用程序代码隐藏对的任何顺序}

^{3 - JSON-simple : https://code.google.com/p/json-simple/. There could be others too.}