使用Jackson将名为“class”的字段反序列化为POJO

Question

This may look a dumb question, but I would like to deserialize a JSON object to a POJO MyObject with a field named class , which is a reserved keyword in Java... If possible, I'd like to keep MyObject Jackson/Json/Whatever-dependency free.

Do I need to add a (standard or Jackson-specific) Java annotation to my class field member to handle this? Or is there another work-around to have a "pure" java object? I can configure the Jackson object mapper if needed.

public class MyObject {
  public String field1;
  public String class; // FAIL
}

Answer 1

Since class is a reserved Java keyword, you cannot use it directly. If you simply want the generated JSON to have it, use @JsonProperty and set its value attribute.

public class MyObject {
    public String field1;

    @JsonProperty(value = "class")
    public String clazz; 
}