fastJson --JSONException syntax error, expect {, actual string, pos...

{
　　"apiResponseID": "00018001CCBA1C3FED965D6004D0F53F",
   "apiErrorMsg": "",
   "apiResultCode": "A1000",
   "apiResultData": "{\"requestId\":\"4ab012b15c3a4f3a8e8425c485edd0df\",\"success\":true}"
}

格式化成对象：

str = str.replace("\\", "").replace("\"{", "{").replace("}\"", "}");
SfResult sfResult = JSONObject.parseObject(str, SfResult.class);