1.2.3版後 JSONObject.toJSONString回傳的字串不再依key值排序了

[limhi]

即便使用了 SerializerFeature.SortField 亦得到錯誤結果
測試程式：

String str = "{\"Format\":\"json\",\"Name\":\"wwqqzz\",\"Para\":{\"myuser\":333,\"mynum\":\"222\", \"mylist\":[11,55,\"33\"]},\"Reserved\":{},\"Type\":\"request\",\"Version\":\"1.0\"}";
System.out.println("str = \t\t" + str);

JSONObject json = JSONObject.parseObject(str);

System.out.println("0.0 json  = \t" + JSONObject.toJSONString(json));
System.out.println("0.1 json  = \t" + JSONObject.toJSONString(json, SerializerFeature.SortField));

使用1.2.2版時輸出 => 正常

str =       {"Format":"json","Name":"wwqqzz","Para":{"myuser":333,"mynum":"222", "mylist":[11,55,"33"]},"Reserved":{},"Type":"request","Version":"1.0"}
0.0 json  =     {"Format":"json","Name":"wwqqzz","Para":{"mylist":[11,55,"33"],"mynum":"222","myuser":333},"Reserved":{},"Type":"request","Version":"1.0"}
0.1 json  =     {"Format":"json","Name":"wwqqzz","Para":{"mylist":[11,55,"33"],"mynum":"222","myuser":333},"Reserved":{},"Type":"request","Version":"1.0"}

使用1.2.3~1.2.6版時輸出 => 亂序

str =       {"Format":"json","Name":"wwqqzz","Para":{"myuser":333,"mynum":"222", "mylist":[11,55,"33"]},"Reserved":{},"Type":"request","Version":"1.0"}
0.0 json  =     {"Type":"request","Format":"json","Para":{"mynum":"222","mylist":[11,55,"33"],"myuser":333},"Version":"1.0","Name":"wwqqzz","Reserved":{}}
0.1 json  =     {"Type":"request","Format":"json","Para":{"mynum":"222","mylist":[11,55,"33"],"myuser":333},"Version":"1.0","Name":"wwqqzz","Reserved":{}}

[FkinH]

try this.

@JSONType(orders = {})

[limhi]

在我這個案例中，並不存在需要反序列化的java物件，也就沒有地方可以放annotation

[wenshao]

原来是将其他类型的Map转为TreeMap再序列化，这样开销较大，如果需要，用ValueFilter将Map转成TreeMap。

[limhi]

wenshao提供的ValueFilter方式，僅能調整value物件
但是key本身在輸出的json 字串中，依然是無序的

[Arisono]

LinkedHashMap<String, Object> root=JSON.parseObject(map.toString(),new TypeReference<LinkedHashMap<String, Object>>(){} ); 这样对于单map对象可以解决顺序问题，嵌套的map还没有尝试，不过这可以是一种解决方法，希望对你有帮助@limhi

[sesames]

That is good