java - Unable to convert null String into JSON object -


this question has answer here:

this code work fine me when take output response in form of string code is:

try       {                         string id;             string uname;             string arg = "{\"id\":\"ets7qkt1luugsj828jugs8vuq5\",\"module_name\":\"users\",\"name_value_list\":{\"user_id\":{\"name\":\"user_id\",\"value\":\"1\"},\"user_name\":{\"name\":\"user_name\",\"value\":\"dbmadmin\"},\"user_language\":{\"name\":\"user_language\",\"value\":\"en_us\"},\"user_currency_id\":{\"name\":\"user_currency_id\",\"value\":\"-99\"},\"user_is_admin\":{\"name\":\"user_is_admin\",\"value\":true},\"user_default_team_id\":{\"name\":\"user_default_team_id\",\"value\":null},\"user_default_dateformat\":{\"name\":\"user_default_dateformat\",\"value\":\"d-m-y\"},\"user_default_timeformat\":{\"name\":\"user_default_timeformat\",\"value\":\"h:ia\"},\"user_number_seperator\":{\"name\":\"user_number_seperator\",\"value\":\",\"},\"user_decimal_seperator\":{\"name\":\"user_decimal_seperator\",\"value\":\".\"},\"mobile_max_list_entries\":{\"name\":\"mobile_max_list_entries\",\"value\":null},\"mobile_max_subpanel_entries\":{\"name\":\"mobile_max_subpanel_entries\",\"value\":null},\"user_currency_name\":{\"name\":\"user_currency_name\",\"value\":\"indian rupee\"}}}";             jsonobject obj = new jsonobject(arg);             id = obj.get("id").tostring();             log.e("temp", "id  "+id);             jsonobject objuserlist = obj.getjsonobject("name_value_list");             jsonobject objusername = objuserlist.getjsonobject("user_name");             uname = objusername.getstring("value");             log.e("temp", "uname = "+uname);             tvtest.settext(uname);                          log.d("temp", "json  "+objuserlist.tostring());          } catch (jsonexception e) {               log.e("log_tag", "error parsing data "+e.tostring());          }     } }

when retrieve code server gives me error java.lang.string.cannot converted jsonobject. code is:

try {                          bufferedreader reader = new bufferedreader(new inputstreamreader(is,"iso-8859-1"),8);                         stringbuilder sb = new stringbuilder();                          string line = null;                         while ((line = reader.readline()) != null)                          {                                 sb.append(line+"\n");                               //  toast.maketext(getapplicationcontext(), "input reading pass", toast.length_short).show();                         }                         is.close();                          result=sb.tostring();                         log.i("sbvalue",result);                     }                     catch(exception e)                     {                        log.e("log_tag", "error converting result "+e.tostring());                     toast.maketext(getapplicationcontext(), " input reading fail", toast.length_short).show();                      }                      try{                        jsonobject obj = new jsonobject(result);                          string id = obj.get("id").tostring();                         log.d("temp", "id  "+id);                         jsonobject objuserlist = obj.getjsonobject("name_value_list");                         jsonobject objusername = objuserlist.getjsonobject("user_name");                         string uname = objusername.getstring("value");                         log.d("temp", "uname = "+uname);

the error get:

error parsing data org.json.jsonexception: value  {"id":"e8nod37hu0dtuu78oue2pg52u3","module_name":"users","name_value_list":{"user_id": {"name":"user_id","value":"1"},"user_name": {"name":"user_name","value":"dbmadmin"},"user_language": {"name":"user_language","value":"en_us"},"user_currency_id": {"name":"user_currency_id","value":"-99"},"user_is_admin": {"name":"user_is_admin","value":true},"user_default_team_id": {"name":"user_default_team_id","value":null},"user_default_dateformat": {"name":"user_default_dateformat","value":"d-m-y"},"user_default_timeformat": {"name":"user_default_timeformat","value":"h:ia"},"user_number_seperator": {"name":"user_number_seperator","value":","},"user_decimal_seperator": {"name":"user_decimal_seperator","value":"."},"mobile_max_list_entries": {"name":"mobile_max_list_entries","value":null},"mobile_max_subpanel_entries": {"name":"mobile_max_subpanel_entries","value":null},"user_currency_name": {"name":"user_currency_name","value":"indian rupee"}}} of type java.lang.string cannot converted jsonobject

you have null values. jsonobject can't accept null values.

see how set value null org.json.jsonobject in java?


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