shop--6.店铺注册--Dto之ShopExecution的实现
在实现Service层之前 需要考虑
在操作Shop时候 会有个操作状态(成功或者失败) 并且需要返回给Controller层
创建Enum类ShopStateEnum
用来表示店铺的状态
public enum ShopStateEnum { CHECK(0,"审核中"),OFFLINE(-1,"非法店铺"),SUCCESS(1,"操作成功") ,PASS(2,"通过认证"),INNER_ERROR(-1001,"内部系统错误"), NULL_SHOPID(-1002,"ShopId为空"),NULL_SHOP(-1003,"店铺信息为空"); private int state; private String stateInfo; //构造器是私有的 不希望第三方来改Enum的值 private ShopStateEnum(int state,String stateInfo) { this.state = state; this.stateInfo = stateInfo; } /** * 依据传入的state返回相应的enum的值 * */ public static ShopStateEnum stateOf(int state) { for (ShopStateEnum stateEnum : values()) { if (stateEnum.getState() == state) { return stateEnum; } } return null; } public int getState() { return state; } public String getStateInfo() { return stateInfo; } }
dto中ShopExection类的创建
包含店铺的状态信息 (枚举类型)
店铺的数量
店铺的实体类
public class ShopExecution { //结果状态 private int state; //状态标识 private String stateInfo; //店铺数量 private int count; //操作的shop(增删改店铺的时候用到) private Shop shop; //shop列表(查询店铺列表的时候使用) private List<Shop> shopList; public ShopExecution() { } //店铺操作失败的时候使用的构造器 public ShopExecution(ShopStateEnum stateEnum) { this.state = stateEnum.getState(); this.stateInfo = stateEnum.getStateInfo(); } //店铺操作成功的时候使用的构造器 店铺操作成功才能返回Shop信息 public ShopExecution(ShopStateEnum stateEnum,Shop shop) { this.state = stateEnum.getState(); this.stateInfo = stateEnum.getStateInfo(); this.shop = shop; } //店铺操作成功的时候使用的构造器 public ShopExecution(ShopStateEnum stateEnum,List<Shop> shopList) { this.state = stateEnum.getState(); this.stateInfo = stateEnum.getStateInfo(); this.shopList = shopList; } public int getState() { return state; } public void setState(int state) { this.state = state; } public String getStateInfo() { return stateInfo; } public void setStateInfo(String stateInfo) { this.stateInfo = stateInfo; } public int getCount() { return count; } public void setCount(int count) { this.count = count; } public Shop getShop() { return shop; } public void setShop(Shop shop) { this.shop = shop; } public List<Shop> getShopList() { return shopList; } public void setShopList(List<Shop> shopList) { this.shopList = shopList; } }