javabean 中使用@Transient属性处理临时字段

import javax.persistence.Transient;

package com.xy.base.domain;
import lombok.Data;
import javax.persistence.Column;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.persistence.Transient;
import java.util.Date;
import java.util.List;
@Entity
@Table(name = "T_SS_LLJLB")
@Data
@Accessors(chain = true)
public class TSsLljlb extends BaseEntity {
    public static final String TABLE = "T_SS_LLJLB";
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "id", nullable = false)
    private Integer id;
    @ApiModelProperty(value = "操作人")
    @Column(name = "user_id", length = 50)
    private String userId;
    @ApiModelProperty(value = "摄像机ID")
    @Column(name = "camera_id", length = 50)
    private String cameraId;
    @ApiModelProperty(value = "摄像机名称")
    @Column(name = "camera_name", length = 50)
    private String cameraName;
    @ApiModelProperty(value = "设备ID")
    @Column(name = "device_id", length = 50)
    private String deviceId;
    @ApiModelProperty(value = "通道ID")
    @Column(name = "channel_id", length = 50)
    private String channelId;
    @ApiModelProperty(value = "线路编码")
    @Column(name = "line_code", length = 50)
    private String lineCode;
    @ApiModelProperty(value = "线路名称")
    @Column(name = "line_name", length = 50)
    private String lineName;
    @ApiModelProperty(value = "操作类型，1-拉流 0-关流")
    @Column(name = "operation")
    private Integer operation;
    @ApiModelProperty(value = "拉流时间(页面请求视频流的时间)")
    @Column(name = "pull_time")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date pullTime;
    @ApiModelProperty(value = "推流时间(页面获取视频URL的时间)")
    @Column(name = "push_time")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date pushTime;
    @ApiModelProperty(value = "页面关流时间(页面请求关闭视频流的时间)")
    @Column(name = "page_close_time")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date pageCloseTime;
    @ApiModelProperty(value = "服务关流时间(分转发服务实际关闭视频流的时间)")
    @Column(name = "service_close_time")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date serviceCloseTime;
    @ApiModelProperty(value = "取流状态(取流成功-200，取流失败-报错编码)")
    @Column(name = "status")
    private Integer status;
    @ApiModelProperty(value = "创建记录时间")
    @Column(name = "create_time")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date createTime;
    @ApiModelProperty(value = "更新记录时间")
    @Column(name = "update_time")
    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date updateTime;
    @ApiModelProperty(value = "临时记录摄像头拉流次数")
    @Transient
    private Integer num;
    public TSsLljlb initTSsLljlb(TSsLljlb tSsLljlb) {
        return this.setCreateTime(new Date());
    }
}