JSON Jackson 将不同的键解析到同一字段中

使用JSON Jackson库可以方便地解析和生成JSON数据。在处理JSON数据时，有时候我们需要将不同的键解析到同一个字段中。这种情况下，我们可以使用Jackson库提供的注解来实现。

json
{
  "name": "John Smith",
  "age": 30,
  "gender": "male",
  "occupation": "engineer"
}

java
public class Person {
  private String name;
  private int age;
  private String gender;
  @JsonProperty(value = {"occupation", "job"})
  private String occupation;
  // 省略构造方法和其他getter/setter方法
}

java
import com.fasterxml.jackson.databind.ObjectMapper;
public class Main {
  public static void main(String[] args) {
    String json = "{\"name\":\"John Smith\",\"age\":30,\"gender\":\"male\",\"job\":\"engineer\"}";
    try {
      ObjectMapper objectMapper = new ObjectMapper();
      Person person = objectMapper.readValue(json, Person.class);
      System.out.println("Name: " + person.getName());
      System.out.println("Age: " + person.getAge());
      System.out.println("Gender: " + person.getGender());
      System.out.println("Occupation: " + person.getOccupation());
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

Name: John Smith
Age: 30
Gender: male
Occupation: engineer