Jackson 绑定具有不同名称的对象列表 [英] Jackson bind List of objects with different name

问题描述

所以我有两个班级:

public class Catalog{
 private List<Country> countries = new ArrayList<>();

 public List<Country> getCountries() {
    return countries;
 }

 public void setCountries(List<Country> countries) {
    this.countries = countries;
 }
}

第二个:

public class Country{
 private String name;

 public String getName() {
    return name;
 }

 public void setName(String name) {
     this.name = name;
 }

}

我想要什么?创建xml但名称不同

What I want ? Create the xml but with different names

<Catalogue>
    <Countries>
        <Country>
            <name>RO</name>
        </Country>
        <Country>
            <name>RO</name>
        </Country>
    </Countries>
</Catalogue>

我使用以下方法编写 xml:

I write the xml using:

    Catalogue catalogue = new Catalogue();

    Country country = new Country();
    country.setName("RO");
    catalogue.getCountries().add(country);
    catalogue.getCountries().add(country);

    String xml = xmlMapper.writeValueAsString(catalogue);  // serializing
    System.out.println("The xml is " + xml);

我该怎么做?我尝试在元素、@JsonGetter 和 @JsonSetter 上使用 @JsonProperty，但我无法做到这一点.

How do I do this? I tried with @JsonProperty on element, @JsonGetter and @JsonSetter but I'm unable to do this.

当我添加这些注释时，它会做类似的事情

When I add those annotations it does something like

<Countries>
   <Countries>
      <name>RO</name>
   </Countries>
</Countries>

推荐答案

JacksonXmlProperty 和 JacksonXmlElementWrapper 注释应该适合您:

JacksonXmlProperty and JacksonXmlElementWrapper annotations should work for you:

@JacksonXmlRootElement(localName = "Catalogue")
class Catalog{

    @JacksonXmlProperty(localName = "Country")
    @JacksonXmlElementWrapper(localName = "Countries")
    private List<Country> countries = new ArrayList<>();

    //...
}

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