Question

我正在运行google places api我收到的回复是json格式我还在json viewer中查看过，

{
   "html_attributions" : [],
   "next_page_token" : "CvQB7AAAAKcVCYUk92u8YbCxucwIYZZoVsNOAX1utAinxpRnjirhCWRGYI1ozjaw-9JauOVcr8iOqsvGVR3n183oJ-saMliylmFcPdJ8HwhIpxwWr8EsXDuTk4SCIYfSfcpSflBaWMqorPnNHAVMz9HS3r4q8Hq-UUobHHfD8HZ4auX9eOzVHETQezM0eT8164h1qsRChdvzEQdsxu1nze6c3GI6xO_PByuSeI8tksFlrPm2P45cZda-_qpQlmn_ksZiCzTRnpPGYG0U7AgtpoiUK85WTAX5CkH7jFpjYFap6LSSv33ujQtFFk52CECLu_iudN78IhIQri7z9TjtM4StCVCRS0Do6RoUrMm6kpd4rUbKD7LkTqbq3o7DOZU",
   "results" : [
      {
         "geometry" : {
            "location" : {
               "lat" : -33.8599827,
               "lng" : 151.2021282
            },
            "viewport" : {
               "northeast" : {
                  "lat" : -33.8552624,
                  "lng" : 151.2031401
               },
               "southwest" : {
                  "lat" : -33.8657895,
                  "lng" : 151.2000123
               }
            }
         },
         "icon" : "http://maps.gstatic.com/mapfiles/place_api/icons/geocode-71.png",
         "id" : "92f1bbd4ecab8e9add032bccee40a57a8dfd42b4",
         "name" : "Barangaroo",
         "place_id" : "ChIJ1ZL9NkGuEmsRUEkzFmh9AQU",
         "reference" : "CpQBhQAAAE4kOaitGfNEGHyhPnHMiP5NVmC9UsUYoYyOtBcO7zKBMNHR07V90Ohq6AV8qEWIAy0xpMvzlEimcdzW0KwdtCbUpWYKXFhby57oPCCUbMiIy_9yxPhtmnzcWFOMZqWWUnVxpYOW6hHR_JbLUbFRPZCSYqMJ9VL6xpxAbjulKVJFmJP4enq7MyeMe8rO0lJRCRIQelNwAky9wPZz9iyjcT7-UhoUGMbpbFWZZeZDjpOxJyipeWTTRxk",
         "scope" : "GOOGLE",
         "types" : [ "locality", "political" ],
         "vicinity" : "Barangaroo"
      }]
}

我用这种方式模型 1.GooglePlacesModel是包含List结果的主要模型;和 2.PlacesMainModel包含List几何;再次根据需要使用的子模型现在我能够在结果数组中接收字符串字段，如名称，图标，但是无法接收像位置这样的几何字段我遇到了以下堆栈跟踪

GooglePlacesModel plcModel = gson.fromJson(resultedPLaces, GooglePlacesModel.class);
where resultedPLaces is the json string as it is above,




 googleapis.com:443][total kept alive: 1; route allocated: 1 of 2; total allocated: 1 of 20]
    com.google.gson.JsonParseException: The JsonDeserializer com.google.gson.DefaultTypeAdapters$CollectionTypeAdapter@356dd6e9 failed to deserialized json object {"geometry":{"location":{"lat":-33.8599827,"lng":151.2021282}}} given the type com.google.gson.ParameterizedTypeImpl@53b59b06
        at com.google.gson.JsonDeserializerExceptionWrapper.deserialize(JsonDeserializerExceptionWrapper.java:63)
        at com.google.gson.JsonDeserializationVisitor.invokeCustomDeserializer(JsonDeserializationVisitor.java:88)
        at com.google.gson.JsonObjectDeserializationVisitor.visitFieldUsingCustomHandler(JsonObjectDeserializationVisitor.java:116)
        at com.google.gson.ObjectNavigator.navigateClassFields(ObjectNavigator.java:158)
        at com.google.gson.ObjectNavigator.accept(ObjectNavigator.java:131)
        at com.google.gson.JsonDeserializationContextDefault.fromJsonObject(JsonDeserializationContextDefault.java:73)
        at com.google.gson.JsonDeserializationContextDefault.deserialize(JsonDeserializationContextDefault.java:51)
        at com.google.gson.Gson.fromJson(Gson.java:568)
        at com.google.gson.Gson.fromJson(Gson.java:515)
        at com.google.gson.Gson.fromJson(Gson.java:484)
        at com.google.gson.Gson.fromJson(Gson.java:434)
        at com.google.gson.Gson.fromJson(Gson.java:406)
        at com.webapp.actions.api.places.NearByPlacesAction.getNrByPlaces(NearByPlacesAction.java:88)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.glassfish.jersey.server.model.internal.ResourceMethodInvocationHandlerFactory$1.invoke(ResourceMethodInvocationHandlerFactory.java:81)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher$1.run(AbstractJavaResourceMethodDispatcher.java:140)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.invoke(AbstractJavaResourceMethodDispatcher.java:158)
        at org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:152)
        at org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:101)

Answer 1

2.PlacesMainModel包含List geometry;

Geometry不是JSONArray，所以你不能将它作为一个简单的嵌套json对象列表。

为Geometry创建另一个模型并使用它代替List Geometry。

JsonParseException：JsonDeserializer com.google.gson.DefaultTypeAdapters在运行google places api时

1 个答案: