Volley gson exception Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 11
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20-12-2019 - |
Question
i used json befor the only new thing
is that am using google volley
on android app
client side:
public void onResponse(JSONObject response) {
Log.i("asaf","jsone="+response.toString());
WorkerSeekerContiner wsc=new WorkerSeekerContiner();
Gson gsonConvertFrom = new Gson();
wsc=gsonConvertFrom.fromJson(response.toString(), WorkerSeekerContiner.class);
Log.i("asaf","list size="+wsc.getList().size());
server side:
Gson gsonConvertTo = new Gson();
String jsonString = gsonConvertTo.toJson(send);
JSONObject myJsonObj;
try {
myJsonObj = new JSONObject(jsonString);
out.print( myJsonObj.toString());
tostring of the JSONObject response: (hold the right data )
{ "list":[ [251,"t1","t1","Nov 7, 2018",31.483521,34.596634,9000,"Nov 10, 2013","yardwork","a"] ,[252,"t1","t1","Nov 7, 2018",31.483521,34.696634,9000,"Nov 10, 2013","yardwork","a"] ] }
but when i try to gsonConvertFrom.fromJson it throws exception:
wsc=gsonConvertFrom.fromJson(response.toString(), WorkerSeekerContiner.class);
11-15 16:50:52.792: E/AndroidRuntime(17804): com.google.gson.JsonSyntaxException: java.lang.IllegalStateException:
Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 11
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:180)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:176)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.Gson.fromJson(Gson.java:755)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.Gson.fromJson(Gson.java:721)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.Gson.fromJson(Gson.java:670)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.Gson.fromJson(Gson.java:642)
11-15 16:50:52.792: E/AndroidRuntime(17804): at asaf.findwork.linkup$1.onResponse(linkup.java:131)
11-15 16:50:52.792: E/AndroidRuntime(17804): at asaf.findwork.linkup$1.onResponse(linkup.java:1)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.android.volley.toolbox.JsonRequest.deliverResponse(JsonRequest.java:65)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run(ExecutorDelivery.java:99)
11-15 16:50:52.792: E/AndroidRuntime(17804): at android.os.Handler.handleCallback(Handler.java:615)
11-15 16:50:52.792: E/AndroidRuntime(17804): at android.os.Handler.dispatchMessage(Handler.java:92)
11-15 16:50:52.792: E/AndroidRuntime(17804): at android.os.Looper.loop(Looper.java:153)
11-15 16:50:52.792: E/AndroidRuntime(17804): at android.app.ActivityThread.main(ActivityThread.java:5037)
11-15 16:50:52.792: E/AndroidRuntime(17804): at java.lang.reflect.Method.invokeNative(Native Method)
11-15 16:50:52.792: E/AndroidRuntime(17804): at java.lang.reflect.Method.invoke(Method.java:511)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
11-15 16:50:52.792: E/AndroidRuntime(17804): at dalvik.system.NativeStart.main(Native Method)
11-15 16:50:52.792: E/AndroidRuntime(17804): Caused by: java.lang.IllegalStateException: Expected BEGIN_OBJECT but was BEGIN_ARRAY at line 1 column 11
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.stream.JsonReader.expect(JsonReader.java:339)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.stream.JsonReader.beginObject(JsonReader.java:322)
11-15 16:50:52.792: E/AndroidRuntime(17804): at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:168)
11-15 16:50:52.792: E/AndroidRuntime(17804): ... 22 more
and last my object just hold a list of objects:
public class WorkerSeekerContiner {
List<WorkerSeeker> list;
Workerseeker class:
@Entity
public class WorkerSeeker implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@Temporal(javax.persistence.TemporalType.DATE)
private Calendar startdate;
@Temporal(javax.persistence.TemporalType.DATE)
private Calendar enddate;
private Double offerprice;
private Double latitude;
private Double longitude;
private String address;
private String userName;
private String type;
private String description;
god dam it :((
the problem was useing createNativeQuery wich on use of (List)q3.getResultList(); gave me a list of objects and not a list of WorkerSeeker
errrrrrrrrrrrrrrrrrrr
if anyone run in to this problem the fix is really easy just add
createNativeQuery (sqlqury,urclass.class); will return arrayof urclass not objects
Solution
createNativeQuery will retrun list of objects on Query.getResultList(); not list of workseeker
am an idot;/