여기 내 해결책이 있습니다. 변형 열거 형을 만들고 싶습니다 {id: ..., name: ...}
.
Jackson 1.x 사용 :
pom.xml :
<properties>
<jackson.version>1.9.13</jackson.version>
</properties>
<dependencies>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>${jackson.version}</version>
</dependency>
</dependencies>
Rule.java :
import org.codehaus.jackson.map.annotate.JsonSerialize;
import my.NamedEnumJsonSerializer;
import my.NamedEnum;
@Entity
@Table(name = "RULE")
public class Rule {
@Column(name = "STATUS", nullable = false, updatable = true)
@Enumerated(EnumType.STRING)
@JsonSerialize(using = NamedEnumJsonSerializer.class)
private Status status;
public Status getStatus() { return status; }
public void setStatus(Status status) { this.status = status; }
public static enum Status implements NamedEnum {
OPEN("open rule"),
CLOSED("closed rule"),
WORKING("rule in work");
private String name;
Status(String name) { this.name = name; }
public String getName() { return this.name; }
};
}
NamedEnum.java :
package my;
public interface NamedEnum {
String name();
String getName();
}
NamedEnumJsonSerializer.java :
package my;
import my.NamedEnum;
import java.io.IOException;
import java.util.*;
import org.codehaus.jackson.JsonGenerator;
import org.codehaus.jackson.JsonProcessingException;
import org.codehaus.jackson.map.JsonSerializer;
import org.codehaus.jackson.map.SerializerProvider;
public class NamedEnumJsonSerializer extends JsonSerializer<NamedEnum> {
@Override
public void serialize(NamedEnum value, JsonGenerator jgen, SerializerProvider provider) throws IOException, JsonProcessingException {
Map<String, String> map = new HashMap<>();
map.put("id", value.name());
map.put("name", value.getName());
jgen.writeObject(map);
}
}
Jackson 2.x 사용 :
pom.xml :
<properties>
<jackson.version>2.3.3</jackson.version>
</properties>
<dependencies>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
</dependencies>
Rule.java :
import com.fasterxml.jackson.annotation.JsonFormat;
@Entity
@Table(name = "RULE")
public class Rule {
@Column(name = "STATUS", nullable = false, updatable = true)
@Enumerated(EnumType.STRING)
private Status status;
public Status getStatus() { return status; }
public void setStatus(Status status) { this.status = status; }
@JsonFormat(shape = JsonFormat.Shape.OBJECT)
public static enum Status {
OPEN("open rule"),
CLOSED("closed rule"),
WORKING("rule in work");
private String name;
Status(String name) { this.name = name; }
public String getName() { return this.name; }
public String getId() { return this.name(); }
};
}
Rule.Status.CLOSED
로 번역되었습니다 {id: "CLOSED", name: "closed rule"}
.