泽西/杰克逊@JsonIgnore在二传手 [英] Jersey/Jackson @JsonIgnore on setter

问题描述

我有一个带有以下注释的类：

i have an class with the following annotations:

class A {
public Map<String,List<String>> references;

@JsonProperty
public Map<String,List<String>> getReferences() {
...
}

@JsonIgnore
public void setReferences(Map<String,List<String>>) {
}
...
}
}

我尝试的是什么是在反序列化时忽略json。但它不起作用。始终当JSON String到达时，Jackson lib会填充references属性。如果我只使用@JsonIgnore注释，则getter不起作用。有没有解决这个问题的方法？

What I try is to ignore the json on deserialization. But it doesn't work. Always when JSON String arrives the Jackson lib fill the references attribute. If I use only the @JsonIgnore annotation the getter doesn't work. Are there any solutions for this problem?

谢谢

推荐答案

我我认为有两个关键部分可以让你根据需要拥有只读集合。首先，除了忽略setter之外，还要确保字段还标有 @JsonIgnore ：

I think there are two key pieces that should enable you to have "read-only collections" as desired. First, in addition to ignoring the setter, ensure that your field is also marked with @JsonIgnore:

class A {

  @JsonIgnore
  public Map<String,List<String>> references;

  @JsonProperty
  public Map<String,List<String>> getReferences() { ... }

  @JsonIgnore
  public void setReferences(Map<String,List<String>>) { ... }

}

其次，为了防止getter被用作setter，请禁用 USE_GETTERS_AS_SETTERS 功能：

Second, in order to prevent the getters from being used as setters, disable the USE_GETTERS_AS_SETTERS feature:

ObjectMapper mapper = new ObjectMapper();
mapper.disable(MapperFeature.USE_GETTERS_AS_SETTERS);

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