Using GSON to json envelop Android

Question

While attempting to read and store a json envelop using GSON library using the 2 lines below, the application crash (see error log). What is wrong with the parsing.

Type listType = new TypeToken<ArrayList<MRechercheResult>>() {}.getType();
        List<MRechercheResult>search_results  = new Gson().fromJson(envelop, listType);

The error log

04-21 11:16:59.971: E/AndroidRuntime(19633): FATAL EXCEPTION: main
04-21 11:16:59.971: E/AndroidRuntime(19633): com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected a string but was BEGIN_ARRAY at line 1 column 178
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:176)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.TypeAdapterRuntimeTypeWrapper.read(TypeAdapterRuntimeTypeWrapper.java:40)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:81)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.CollectionTypeAdapterFactory$Adapter.read(CollectionTypeAdapterFactory.java:60)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.Gson.fromJson(Gson.java:803)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.Gson.fromJson(Gson.java:768)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.Gson.fromJson(Gson.java:717)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at waoo.app.fragment.RechercheResult.saveJson(RechercheResult.java:255)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at waoo.app.fragment.RechercheResult$1$1.handleMessage(RechercheResult.java:218)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at android.os.Handler.dispatchMessage(Handler.java:99)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at android.os.Looper.loop(Looper.java:137)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at android.app.ActivityThread.main(ActivityThread.java:5306)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at java.lang.reflect.Method.invokeNative(Native Method)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at java.lang.reflect.Method.invoke(Method.java:511)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1102)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:869)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at dalvik.system.NativeStart.main(Native Method)
04-21 11:16:59.971: E/AndroidRuntime(19633): Caused by: java.lang.IllegalStateException: Expected a string but was BEGIN_ARRAY at line 1 column 178
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.stream.JsonReader.nextString(JsonReader.java:821)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.TypeAdapters$13.read(TypeAdapters.java:358)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.TypeAdapters$13.read(TypeAdapters.java:346)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.read(ReflectiveTypeAdapterFactory.java:93)
04-21 11:16:59.971: E/AndroidRuntime(19633):    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$Adapter.read(ReflectiveTypeAdapterFactory.java:172)
04-21 11:16:59.971: E/AndroidRuntime(19633):    ... 16 more

The model

public class MRechercheResult {


    public String id_profil;
    public String id_customer;
    public String profil;
    public String profil_photo;
    public String email;
    public String agenda;

    public List<Activite> activite;

}

public class Activite {

    public String day;
    public String from;
    public String to;

}

You can find the json envelop here:

http://pastie.org/private/ipirfc9pgftd8lmjaoipog

Answer 1

Hope this helps.. Using gson you need to be careful about the variable name and type :)

public class MRechercheResult {


        public String id_profil;
        public String id_customer;
        public String profil;
        public String profil_photo;
        public String email;
        public Agenda[] agenda;

        public Activite[] activite;

    }

    public class Activite {

        public String day;
        public String from;
        public String to;

    }

        public class Agenda {
        String day;
        String from;
        String to;
    }

}