这字符串json格式有问题，怎么转jsonarray的时候会报错？

字符串如下

 [{postUser:自由的翅膀,content:please,where do you find this picture?,dateTime:2016-12-14 12:29:286}]

把这字符串转jsonarray的时候就会抱错
JSONArray array=new JSONArray(str);

报错：

 org.json.JSONException: Expected a ':' after a key at character 64

我看不出这字符串的json格式哪里有问题，而且我生成这字符串也是用jsonobject,jsonarray来生成然后再toString()的，求指点

where do you find this picture? where do you find this picture? 这里你不是按json的格式来的
你要“where do you find this picture?：’‘ ”格式要配上啊

参考格式：{ "people": [

{ "firstName": "Brett", "lastName":"McLaughlin", "email": "aaaa" },

{ "firstName": "Jason", "lastName":"Hunter", "email": "bbbb"},

{ "firstName": "Elliotte", "lastName":"Harold", "email": "cccc" }

]}

http://blog.csdn.net/taxiangwuhen/article/details/7849711
http://www.bkjia.com/Javabc/1017059.html

改成下面这样：

  [{"postUser":"自由的翅膀","content":"please,where do you find this picture?","dateTime":"2016-12-14 12:29:286"}]

http://json.cn/

检查或者格式化，可以用上面那个地址。

这不是json字符格式，所以报错