我有问题，当我写一些信息''我有价值的数据库'udhg&#bdldd'但当我红和解码这个消息，我有'？？？'*

@Entity
public class Message {

    @Id
    private Integer id;

    @Column
    private String message;

    @Column(name = "message")
    public String getMessage() {
        return String(Base64.encodeBase64(message.getBytes())) : null;
    }

    @JsonIgnore
    public void setMessage(String message) {
        byte[] base64 = message.getBytes();
        this.body = new String(Base64.decodeBase64(base64));
    }
}