Java 意外的输入结束：OBJECT 的预期关闭标记
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Unexpected end-of-input: expected close marker for OBJECT
提问by Lucía Román González
I'm trying to create a geopoint in my app engine application but when I try to deserialize it I got this annoying message:
我正在尝试在我的应用引擎应用程序中创建一个地理点，但是当我尝试反序列化它时，我收到了这条烦人的消息：
Uncaught exception from servlet
org.codehaus.Hymanson.JsonParseException: Unexpected end-of-input: expected close marker for OBJECT (from [Source: java.io.StringReader@1a21658; line: 1, column: 0]).
This is my JSON code:
这是我的 JSON 代码：
{
"id": 31,
"name": "pepe",
"mail": "[email protected]",
"password": 123,
"age":10,
"birthday": "01-06-1991",
"desc" : " bla bla",
"gp": {
"latitude": 64.124596,
"longitude": -147.8632
}
}
and this is the declaration of geopoint and my custom deserialize method:
这是 geopoint 的声明和我的自定义反序列化方法：
GeoPoint gp;
public GeoPoint getGp() {
return gp;
}
@JsonDeserialize(using = CustomGeoPintDeserializer.class)
public void setGp(GeoPoint gp) {
this.gp = gp;
}
public class CustomGeoPintDeserializer extends JsonDeserializer<GeoPoint> {
@Override
public GeoPoint deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
System.out.println("ENTRA");
ObjectMapper mapper = new ObjectMapper();
JsonNode actualObj = mapper.readValue(jsonParser.getText(), JsonNode.class);
double latitude = actualObj.get("latitude").getDoubleValue();
double longitude = actualObj.get("longitude").getDoubleValue();
return new GeoPoint(latitude,longitude);
}
}
采纳答案by Micha? Ziober
It looks like your GeoPointclass has constructor like this: public GeoPoint(double latitude, double longitude). In this case we can use MixIn feature. We have to create additional abstract class in which we will provide mapping between your POJOand JSON.
它看起来像你的GeoPoint类有构造是这样的：public GeoPoint(double latitude, double longitude)。在这种情况下，我们可以使用MixIn 功能。我们必须创建额外的抽象类，我们将在其中提供您POJO和JSON.
abstract class GeoPointMixIn {
GeoPointMixIn(@JsonProperty("latitude") double latitude, @JsonProperty("longitude") double longitude) {
}
}
And simple usage:
和简单的用法：
ObjectMapper mapper = new ObjectMapper();
mapper.addMixInAnnotations(GeoPoint.class, GeoPointMixIn.class);
System.out.println(mapper.readValue(JSON, YourRootPojo.class));
As you can see you do not have to implement custom deserializer for GeoPointclass.
如您所见，您不必为GeoPoint类实现自定义反序列化器。
回答by Irina
For me it was much simple solution.
对我来说，这是非常简单的解决方案。
I forgot to close brackets in my SwaggerUI request like that:
我忘记在我的 SwaggerUI 请求中关闭括号，如下所示：
{
"jobGroup": "Authorizer-CCC",
"jobName": "Authorizer-2NO5-101"
