android - How to handle gson error
In my application if you click on the button then it calls the web service for the response and after mapping this response to some class using GSON at the time of mapping I'm getting the following error:
com.google.gson.JsonParseException: The JsonDeserializer com.google.gson.DefaultTypeAdapters$CollectionTypeAdapter@44c51f20 failed to deserialized json object
How to handle it. can anybody help me
My Code
private OnClickListener exit3Listener = new OnClickListener(){
public void onClick(View v){
if(!exit3status){
System.out.println("exit3 visible");
//System.out.println("size"+RB_Constant.upcomingexits_obj.response.size());
// Web service calling for exit restaurants.
Exitexpand_pd = ProgressDialog.show(RB_UpcomingExits.this, "", "Please wait...", true);
Thread t = new Thread(){
public void run(){
try {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_NOSENSOR);
ExitRestaurantsResponse = getExitsRestaurants();
System.out.println("exit3response"+ExitRestaurantsResponse);
} catch (SoapFault e) {
e.printStackTrace();
}
rb_Exitexpand_Handler.post(rb_exitrestaurantres_HandlerResp);
Exitex开发者_C百科pand_pd.dismiss();
}
};
t.start();
listLayout3.setVisibility(View.VISIBLE);
exit3status = true;
if(!exit1status || exit2status || exit4status || exit5status)
{
//System.out.println("exit2 GONE");
listLayout1.setVisibility(View.GONE);
listLayout2.setVisibility(View.GONE);
listLayout4.setVisibility(View.GONE);
listLayout5.setVisibility(View.GONE);
exit1status = false;
exit2status = false;
exit4status = false;
exit5status = false;
}
} else {
System.out.println("exit3 GONE");
listLayout3.setVisibility(View.GONE);
exit3status = false;
}
//LLExitDetails.invalidate();
}
};
final Runnable rb_exitrestaurantres_HandlerResp = new Runnable(){
public void run(){
try{
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_SENSOR);
check_exitrestrepWSResponse();
} catch(Exception e){
e.printStackTrace();
}
}
};
public void check_exitrestrepWSResponse() throws Exception{
try{
com.google.gson.Gson gson = new com.google.gson.Gson(); // Or use new GsonBuilder().create();
RB_Constant.exitsrestaurants_obj = gson.fromJson(ExitRestaurantsResponse, Exitsrestaurants.class); // deserializes json into target2
if( RB_Constant.exitsrestaurants_obj.status.equals("FAILED") != true &&
RB_Constant.exitsrestaurants_obj.status.equals("SUCCESS") == true)
{
//System.out.println("total size:"+RB_Constant.exitsrestaurants_obj.totalrecords);
System.out.println("res size:"+RB_Constant.exitsrestaurants_obj.response.size());
if(ExitRestaurantsResponse.contains("Timeout expired") != true &&
ExitRestaurantsResponse.contains("Cannot open database") != true &&
ExitRestaurantsResponse.contains("error") != true )
{
// if Exits size is more zero or not
if(RB_Constant.exitsrestaurants_obj.response.size() > 0){
if(RB_Constant.exitsrestaurants_obj.response.size() > 2){
if(RB_Constant.exitsrestaurants_obj.response.get(0).listRestaurants.size() > 0){
System.out.println("Exit3 Restaurants");
// Create the views on the fly instead of using the ListView
rbupcadapter3 = new UpcomingResultsListViewAdapter3(this);
int numItems3 = 0;
if(RB_Constant.exitsrestaurants_obj.response.get(0).listRestaurants.size() > 0)
{
numItems3 = RB_Constant.exitsrestaurants_obj.response.get(0).listRestaurants.size();
System.out.println("Exit3 restaurants size:"+numItems3);
}
//linearLayout2
for(int position=0; position < numItems3; position++)
{
View convertview = null;
convertview = rbupcadapter1.getView(position, convertview, null);
listLayout3.addView(convertview);
}
} else {
System.out.println("No results in Exit3");
//toastMsg("No results in Exit3");
}
}
}
}
}
}
catch(JsonParseException e)
{
System.out.println("Exception in check_exitrestrepWSResponse::"+e.toString());
}
}
By using a try-catch-block?
try{
// Try your GSON thing
} catch (JsonParseException e){
// Do your Error handling
}
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