如何使用 Z6716608096280862A88268CDDB0DEZ 访问以 NULL 开头的 JSON object？

Question

I am trying to access a web API by using gson to parse through it into a string. The URL returns:

NULL { "status": "yes", "problem": "400072500002031600000009007000150400000396010090000003003015002065000000000703000", "result": "489672531752831649316549827238157496547396218691284753873415962165928374924763185", "time": "0.0472550392151" }

The above json element starts with NULL, is what is causing a problem for me to access its objects. I want to get the numbers in "result" object as a string. Using Gson only to parse the JSON objects please. Any help would be appreciated!

Answer 1

This (with NULL) is not a valid JSON. Use any online validator to prove, if you need it.

If it happens constantly try to contact API provider or just remove this null in the beginning, before parsing.

EDIT:

If you can process original answer before passing to Gson deserializer you can probably do:

String originalJson = "NULL { \"status\": \"yes\", \"problem\": "
+ "\"400072500002031600000009007000150400000396010090000003003015002065000000000703000\", "
+ "\"result\": \"489672531752831649316549827238157496547396218691284753873415962165928374924763185\", "
 + "\"time\": \"0.0472550392151\" }";
        
String json = originalJson.startsWith("NULL ") ? originalJson.replaceFirst("NULL ", "") : originalJson;