Java开发笔记6(添加区域)（小小）

1.Controller:

/**
 * 添加区域
 *
 * @return
 */
@PostMapping("/save")
public Result save(@RequestBody StationRegionDTO dto) {
    return Result.ok(stationRegionService.save(dto));
}


2.Service:
/**
 * 根据dto保存区域数据
 *
 * @param dto
 * @return
 */
String save(StationRegionDTO dto);



3.ServiceImpl:

@Transactional
@Override
public String save(StationRegionDTO dto) {
    StationRegion region = getStationRegion(dto);
    StationRegion save = stationRegionDao.save(region);
    return save.getId();
}

/**
 * 构建车站区域信息方法
 * @param  dto
 * @return com.cars.ict.rbpsems.entity.base.StationRegion
 * @author xueyj
 * @date   2019/7/23-9:51
 */
private StationRegion getStationRegion(StationRegionDTO dto) {
    StationRegion region = new StationRegion();
    region.setName(dto.getName());
    region.setCode(generateCode(dto.getPid()));
    region.setAbbreviation(dto.getAbbreviation());
    //加入排序  2022/2/18 gs
    region.setIndex(dto.getIndex());
    String pid = dto.getPid();
    if (!StringUtils.isEmpty(pid)) {
        StationRegion parent = stationRegionDao.findById(pid).orElse(null);
        if (parent != null) {
            region.setParent(parent);
            region.setStation(parent.getStation());
        }
    }
    /**
     * @Description:添加自定义区域照片
     */
    if (!StringUtils.isEmpty(dto.getStationRegionPic())) {
        String path = filePath + dto.getStationRegionPic();
        File file = new File(path);
        if (file.exists()) {
            region.setStationRegionPic(dto.getStationRegionPic());
        }
    }
    return region;
}

4.DTO:

package com.cars.ict.rbpsems.dto.base;
/**
 * StationRegionDTO class
 *
 * @author duke.ma
 * @date 2019.04。08
 */
public class StationRegionDTO implements java.io.Serializable{

   private String id;

   /**
    * 区域名称
    */
   private String name;

   /**
    * 区域简称
    */
   private String abbreviation;

   /**
    * 区域编码
    */
   private String code;

   /**
    * 站点id
    * 
    */
   private String stationId;

   /**
    * 上级区域ID
    */
   private String pid;


   /**
    * 车站区域照片
    */
   private String stationRegionPic;


   /**
    * 类型
    */
   private String type;


   private Integer index;

   public String getStationRegionPic() {
      return stationRegionPic;
   }

   public void setStationRegionPic(String stationRegionPic) {
      this.stationRegionPic = stationRegionPic;
   }

   public String getId() {
      return id;
   }

   public void setId(String id) {
      this.id = id;
   }

   public String getName() {
      return name;
   }

   public void setName(String name) {
      this.name = name;
   }

   public String getCode() {
      return code;
   }

   public void setCode(String code) {
      this.code = code;
   }

   public String getStationId() {
      return stationId;
   }

   public void setStationId(String stationId) {
      this.stationId = stationId;
   }

   public String getPid() {
      return pid;
   }

   public void setPid(String pid) {
      this.pid = pid;
   }

   public String getAbbreviation() {
      return abbreviation;
   }

   public void setAbbreviation(String abbreviation) {
      this.abbreviation = abbreviation;
   }

   public String getType() {
      return type;
   }

   public void setType(String type) {
      this.type = type;
   }

   public Integer getIndex() {
      return index;
   }

   public void setIndex(Integer index) {
      this.index = index;
   }

   @Override
   public String toString() {
      return "StationRegionDTO{" +
            "id='" + id + '\'' +
            ", name='" + name + '\'' +
            ", abbreviation='" + abbreviation + '\'' +
            ", code='" + code + '\'' +
            ", stationId='" + stationId + '\'' +
            ", pid='" + pid + '\'' +
            ", stationRegionPic='" + stationRegionPic + '\'' +
            ", type='" + type + '\'' +
            '}';
   }
}


5.entity:


package com.cars.ict.rbpsems.entity.base;

import com.fasterxml.jackson.annotation.JsonIgnore;
import lombok.Data;
import org.hibernate.annotations.GenericGenerator;

import javax.persistence.*;
import java.io.Serializable;
import java.util.List;

/**
 * 车站区域
 *
 * @author mike
 */
@Entity
@Data
@Table(name = "b_station_region_dict")
public class StationRegion implements Serializable {

    private static final long serialVersionUID = 1L;
    @Id
    @GenericGenerator(name = "uuid", strategy = "uuid")
    @GeneratedValue(generator = "uuid")
    @Column(length = 32, name = "s_id")
    private String id;
    /**
     * 区域名称
     */
    @Column(length = 100, name = "s_name")
    private String name;

    /**
     * 区域编码
     */
    @Column(length = 50, name = "s_code")
    private String code;

    /**
     * 区域编码
     */
    @Column(name = "s_area_code")
    private String areaCode;

    /**
     * 区域类型简称
     */
    @Column(length = 50, name = "s_abbreviation")
    private String abbreviation;

    /**
     * 站点
     */
    @ManyToOne
    @JoinColumn(name = "s_station_id")
    private Station station;

    /**
     * 类型： 0 区域 1 车站
     */
    @Column(length = 50, name = "s_type")
    private String type = "0";
    /**
     * 车站区域照片
     */
    @Column(length = 50, name = "s_station_region_pic")
    private String stationRegionPic = "";

    /**
     * 排序
     */
    @Column(name = "i_index")
    private Integer index;

    /**
     * 上级区域
     */
    @JsonIgnore
    @ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "s_pid")
    private StationRegion parent;

    /**
     * 车站区域是否被监控管理
     */
    @Column(name = "s_ismonitored")
    private String ismonitored = "0";

    @OneToMany(fetch = FetchType.EAGER, mappedBy = "parent")
    private List<StationRegion> children;

    public StationRegion() {
        super();
    }

    public StationRegion(String name, String code, String abbreviation, Station station, String type,
                         StationRegion parent, List<StationRegion> children) {
        super();
        this.name = name;
        this.code = code;
        this.abbreviation = abbreviation;
        this.station = station;
        this.type = type;
        this.parent = parent;
        this.children = children;
    }

    public String getStationRegionPic() {
        return stationRegionPic;
    }

    public void setStationRegionPic(String stationRegionPic) {
        this.stationRegionPic = stationRegionPic;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public Station getStation() {
        return station;
    }

    public void setStation(Station station) {
        this.station = station;
    }

    public StationRegion getParent() {
        return parent;
    }

    public void setParent(StationRegion parent) {
        this.parent = parent;
    }

    public String getAbbreviation() {
        return abbreviation;
    }

    public void setAbbreviation(String abbreviation) {
        this.abbreviation = abbreviation;
    }

    public List<StationRegion> getChildren() {
        return children;
    }

    public void setChildren(List<StationRegion> children) {
        this.children = children;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getIsmonitored() {
        return ismonitored;
    }

    public void setIsmonitored(String ismonitored) {
        this.ismonitored = ismonitored;
    }

    public Integer getIndex() {
        return index;
    }

    public void setIndex(Integer index) {
        this.index = index;
    }
}

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来源： https://www.cnblogs.com/sensenh/p/15917579.html