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HQL(JPQL)和原生SQL实现查询自定义返回类

维修申请实例RepairApplyInstance:

package com.byx.scaffold.common.entity.jpa;

import com.byx.scaffold.common.entity.jpaEnum.RepairStatusConstant;
import lombok.Data;

import javax.persistence.Convert;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import java.time.LocalDateTime;

/**
 * 维修申请实例
 * @author xiaoping
 * @date 2024/12/26
 **/
@Data
@Table(name = "repair_apply_instance")
@Entity(name = "common_RepairApplyInstance") //若存在同名Bean,可定义name区分
public class RepairApplyInstance {
    @Id // 默认使用 uuid
    private String businessKey;

    /** 工单编号(区域编号+日期+时间+uuid前八位) */
    private String repairNumber;
    /** 工单类型 */
    private String orderType;

    /** 故障类型,多个故障以“;”隔开 */
    private String faultTypes;
    /** 故障描述 */
    private String faultDescription;

    /** 维修优先级(一级,二级,三级) */
    private String priority;
    /** 故障时间 */
    private LocalDateTime faultTime;
    /** 备注 */
    private String remark;
    /** 开始时间 */
    private LocalDateTime startTime;
    /** 结束时间 */
    private LocalDateTime endTime;

    /** 区分平台报修和导入(0:人工;1:市局,2:巡检) */
    private int platformRepair;

    /** 工单状态(-4:已移交,-3:关闭,-2:取消,-1:拒绝,0:待响应,1:维修中,2:待观察,3:维修完成) */
    @Convert(converter = RepairStatusConstant.RepairStatusEnumConverter.class)
    private RepairStatusConstant repairStatus;

}

工单对应设备RepairDevice:

package com.byx.scaffold.common.entity.jpa;

import lombok.Data;

import javax.persistence.*;

/**
 * @author xiaoping
 * @date 2024/12/26
 **/
@Data
@Table(name = "repair_devices")
@Entity(name = "common_RepairDevice")
public class RepairDevice {

    @Id
    private String id;
    /** 设备编号 */
    private  String deviceNumber;
    /** 设备名称 */
    private  String deviceName;
    /** 设备类型 */
    private  String deviceType;
    /** 设备品牌 */
    private  String deviceBrand;
    /**
     * 设备使用状态
     */
    private String deviceState;
    /** 维修工单 */
    @ManyToOne
    @JoinColumn(name = "business_key") // TODO 把 order_id 改为这个
    private RepairApplyInstance applyInstance;
    /** 对应设备总览的UUID */
    private  String deviceUUID;

}

枚举类RepairStatusConstant:

package com.byx.scaffold.common.entity.jpaEnum;

import com.fasterxml.jackson.annotation.JsonValue;

/**
 * 维修工单对应状态枚举
 * 
 * @author xiaoPing
 * @createdTime 2022年3月31日下午1:52:35
 */
public enum RepairStatusConstant implements BaseEnum<Integer> {

TRANSFER(-4, "已移交"),
CLOSED(-3, "关闭"),
CANCEL(-2, "取消"),
REJECTED(-1, "拒绝"),
WAIT_RESPONSE(0, "待响应"),
REPAIRING (1, "维修中"),
WAIT_OBSERVE (2, "待观察"),
FINISHED(3, "维修完成");

// 维修工单状态key
private final Integer value;
// 维修工单状态
private final String statusName;

RepairStatusConstant(Integer value, String statusName) {
this.value = value;
this.statusName = statusName;
}


原文地址:https://blog.csdn.net/gp_911014/article/details/145137557

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