package service;
import common.Constant;
import common.Response;
import entity.Pet;
import java.util.ArrayList;
import java.util.List;
public class BusinessService {
    private static List<Pet> businessList = new ArrayList<>();
    static {
        businessList.add(new Pet("1","小猫","男","2","2"));
        businessList.add(new Pet("2","小狗","男","2","2"));
        businessList.add(new Pet("3","小兔","男","2","2"));
    }
    // 查询
    public Response query(String name){
        if(name == null || "".equals(name)){
            return new Response("error","编号为空。");
        }
        for(Pet pet : businessList){
            if(name.equals(pet.getPetId())){
                return new Response("success","查询成功。", pet);
            }
        }
        return new Response("error","未查询到此"+ Constant.MAIN_CLASS +"，请重新输入：");
    }
    // 增加
    public Response add(Pet pet){
        for(Pet p : businessList){
            if(p.getPetId().equals(pet.getPetId())){
                return new Response("error","该"+ Constant.MAIN_CLASS+"已存在。");
            }
        }
        businessList.add(pet);
        return new Response("success", Constant.MAIN_CLASS+"添加成功。", pet);
    }
    // 编辑
    public Response checkProp(Pet pet, String prop, String value){
        if(prop == null || "".equals(prop)){
            return new Response("error","属性为空。");
        }
        String[] props = {"petId","petName","petSex","petAge","petWeight"};
        switch(prop){
            case "petId" :
                pet.setPetId(value);
                break;
            case "petName" :
                pet.setPetName(value);
                break;
            case "petSex" :
                pet.setPetSex(value);
                break;
            case "petAge" :
                pet.setPetAge(value);
                break;
            case "petWeight" :
                pet.setPetWeight(value);
                break;
            default:
                return new Response("error","该属性不存在。");
        }
        return new Response("success","编辑成功。");
    }
    // 删除
    public Response delete(String name){
        if(name == null || "".equals(name)){
            return new Response("error", Constant.MAIN_CLASS+"编号为空。");
        }
        for(Pet pet: businessList){
            if(pet.getPetId().equals(name)){
                businessList.remove(pet);
                return new Response("success", Constant.MAIN_CLASS+"删除成功。");
            }
        }
        return new Response("error", Constant.MAIN_CLASS+"不存在。");
    }
}

package service;
import common.Account;
import common.Response;
import entity.User;
import java.util.ArrayList;
import java.util.List;
public class LoginService {
    private static List<User> userList = new ArrayList();
    static{
        userList.add(new User(Account.ADMIN.getUsername(), Account.ADMIN.getPassword()));
        userList.add(new User(Account.USER1.getUsername(), Account.USER1.getPassword()));
        userList.add(new User(Account.USER2.getUsername(), Account.USER2.getPassword()));
        userList.add(new User(Account.USER3.getUsername(), Account.USER3.getPassword()));
    }
    public Response login(String username, String password){
        if(username == null || "".equals(username)){
            return new Response("error","用户名为空，请输入用户名。");
        }
        if(password == null || "".equals(password)){
            return new Response("error","密码为空，请输入密码。");
        }
        for (User user : userList){
            if(username.equals(user.getUsername()) && password.equals(user.getPassword())){
                return new Response("success","登陆成功！");
            }
        }
        return new Response("error","用户名或密码输入错误，请检查并重新输入。");
    }
}