杰克逊JSON Java类 - 字段是序列化多次 [英] Jackson JSON java class - fields are serialized multiple times

问题描述

我有一个下面的类定义

@JsonTypeName("PhotoSetUpdater")
public class PhotoSetUpdater {
@JsonProperty("Title")
private String title;
@JsonProperty("Caption")
private String caption;
@JsonProperty("Keywords")
private String[] keywords;
@JsonProperty("Categories")
private int[] categories;
@JsonProperty("CustomReference")
    private String customReference;      // new in version 1.1


public String getTitle() {
    return title;
}

public void setTitle(String title) {
    this.title = title;
}

public String getCaption() {
    return caption;
}

public void setCaption(String caption) {
    this.caption = caption;
}


public String getCustomReference() {
    return customReference;
}


public void setCustomReference(String customReference) {
    this.customReference = customReference;
}


public void setKeywords(String[] keywords) {
    this.keywords = keywords;
}

public String[] getKeywords() {
    return keywords;
}


public void setCategories(int[] categories) {
    this.categories = categories;
}


public int[] getCategories() {
    return categories;
}

}

问题是，在我这个序列化类杰克逊JSON序列，字段在结果有效载荷insetrted两次入手一部以较低的字母，一个用大写字母：

The problem is that after I serialize this class with Jackson JSON serializer, the fields are insetrted twice in the result payload: one starting with lower letter, one with capital letter:

... {标题：AA，标题：AA，...}

... {"Caption":"aa","caption":"aa",...}

什么可能是错误的类型定义？

What may be wrong with type definition?

问候

推荐答案

尝试使用 @JsonAutoDetect（getterVisibility = Visibility.NONE）的类。

这篇关于杰克逊JSON Java类 - 字段是序列化多次的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！