Java @JsonRootName 不能如我所愿
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/24132884/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
@JsonRootName not work as I want
提问by Auf
This is my FacilityDTO
这是我的 FacilityDTO
@JsonRootName("Facility")
@XmlAccessorType(XmlAccessType.NONE)
@XmlType(name = "Facility", propOrder = { "id", "name", "totalQuantity" })
public class FacilityDTO implements Serializable {
private static final long serialVersionUID = 1L;
@XmlElement(required = true)
private String id;
@XmlElement(required = true)
private String name;
@XmlElement(required = true)
private double totalQuantity;
public FacilityDTO() {
}
public FacilityDTO(Facility facility) {
this.name = facility.getName();
this.totalQuantity = facility.getTotalQuantity();
this.id = facility.getId();
}// getters setter
This is my message body writer
这是我的消息正文作者
ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new Jdk7Module());
mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
mapper.writeValue(out, object);
int bytesCount = out.size();
byte[] bytes = out.toByteArray();
entityStream.write(bytes);
entityStream.flush();
The output of JSON format is like this
JSON格式的输出是这样的
My Questions are:
我的问题是：
- Why the results seem not correct? I was put @JsonRootName("Facility") and also enable the wrap root feature.
- Any part I miss?
- 为什么结果似乎不正确？我被放置了 @JsonRootName("Facility") 并启用了 wrap root 功能。
- 有我想念的部分吗？
采纳答案by PhiLho
See Hymanson JSON Deserialization with Root Element
According to the above, you need to configure deserialization as follows:
mapper.configure(DerializationFeature.UNWRAP_ROOT_VALUE, true);
根据以上，需要配置反序列化如下：
mapper.configure(DerializationFeature.UNWRAP_ROOT_VALUE, true);
