java书店系统毕业设计用户模块（2）

本文实例为大家分享了java书店系统毕业设计第二篇，供大家参考，具体内容如下

1、用户管理（user.txt）

字段名和顺序

说明：其中的type为int类型，用来表示操作用户的类型。
1——表示为admin，可以进行全部操作
2——表示为能操作图书模块的人员
3——表示为能操作进货模块的人员
4——表示为能操作销售模块的人员
5——表示为能操作库存模块的人员

type用了枚举实现

package cn.hncu.bookStore.user.common;
public enum UserTypeEnum {
 AdMIN(1,"超级管理员"),BOOK(2,"图书管理员"),IN(3,"进货管理员"),OUT(4,"销售管理员"),STOCK(5,"库存管理员");
 private final int type;
 private final String name;
 UserTypeEnum(int type,String name){//默认private
  this.name =name;
  this.type=type;
 }
 public int getType() {
  return type;
 }
 public String getName() {
  return name;
 }
 public static int getTypeByName(String name){
  for(UserTypeEnum utm:UserTypeEnum.values()){
   if(utm.getName().equals(name.trim())){
    return utm.getType();
   }
  }
  throw new IllegalArgumentException("没有该""+name+""对应的用户类型");//非法参数异常
 }
 public static String getNameByType(int type){
  for(UserTypeEnum utm:UserTypeEnum.values()){
   if(utm.getType()==type){
    return utm.getName();
   }
  }

  throw new IllegalArgumentException("没有该""+type+""对应的用户类型");//非法参数异常
 }

}

package cn.hncu.bookStore.user.vo;
import java.io.Serializable;
import cn.hncu.bookStore.user.common.UserTypeEnum;

public class UserModel implements Serializable{
 private static final long serialVersionUID = 1L;
 private String uuid,name,pwd;//用户编号，用户名称，用户密码
 private int type;//用户类型
 public UserModel() {
 }
 public String getUuid() {
  return uuid;
 }
 public void setUuid(String uuid) {
  this.uuid = uuid;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public String getPwd() {
  return pwd;
 }
 public void setPwd(String pwd) {
  this.pwd = pwd;
 }
 public int getType() {
  return type;
 }
 public void setType(int type) {
  this.type = type;
 }
 @Override
 public int hashCode() {
  final int prime = 31;
  int result = 1;
  result = prime * result + ((uuid == null) ? 0 : uuid.hashCode());
  return result;
 }
 @Override
 public boolean equals(Object obj) {
  if (this == obj)
   return true;
  if (obj == null)
   return false;
  if (getClass() != obj.getClass())
   return false;
  UserModel other = (UserModel) obj;
  if (uuid == null) {
   if (other.uuid != null)
    return false;
  } else if (!uuid.equals(other.uuid))
   return false;
  return true;
 }
 @Override
 public String toString() {
  return uuid + "," + name +"," + UserTypeEnum.getNameByType(type);
 }
}

package cn.hncu.bookStore.user.vo;
public class UserQueryModel extends UserModel{
 private static final long serialVersionUID = 1L;
}

dao层：

package cn.hncu.bookStore.user.dao.dao;

import java.util.List;

import cn.hncu.bookStore.user.vo.UserModel;
import cn.hncu.bookStore.user.vo.UserQueryModel;

public interface UserDAo {

 
 public boolean create(UserModel user);
 
 public boolean delete(String uuid);
 
 public boolean update(UserModel user);
 
 public UserModel getSingle(String uuid);
 
 public List getByCondition(UserQueryModel user);
 
 public List getAll();
}

package cn.hncu.bookStore.user.dao.impl;

import java.util.ArrayList;
import java.util.List;

import cn.hncu.bookStore.user.dao.dao.UserDAo;
import cn.hncu.bookStore.user.vo.UserModel;
import cn.hncu.bookStore.user.vo.UserQueryModel;
import cn.hncu.bookStore.utils.FileIOUtil;

public class UserDAOFileImpl implements UserDAo {

 private final static String FILE_NAME="a.txt";
 @Override
 public boolean create(UserModel user) {
  if(user==null){//如果待注册的用户信息为null，则不能注册，返回false
   return false;
  }
  List list=getAll();//获取文件中已存在的所有用户对象
  for(UserModel u:list){//遍历
   if(u.getUuid().equals(user.getUuid())){//如果此用户已存在，则不能注册
    return false;
   }
  }
  //经过上面的遍历，说明user不存在，则可以注册
  list.add(user);
  return FileIOUtil.writeToFile(list, FILE_NAME);
 }

 @Override
 public boolean delete(String uuid) {
  List list=getAll();
  for(int i=0;i list=getAll();
  for(int i=0;i list=getAll();
  for(UserModel u:list){
   if(u.getUuid().equals(uuid)){
    return u;
   }
  }
  return null;
 }

 @Override
 public List getByCondition(UserQueryModel user) {

  List list=getAll();
  List reslist=new ArrayList();
  for(UserModel u:list){
   if(user.getUuid()!=null && user.getUuid().trim().length()>0){
    if(!user.getUuid().trim().equals(u.getUuid())){
     continue;
    }
   }
   if(user.getName()!=null && user.getName().trim().length()>0){
    if(u.getName().indexOf(user.getName())==-1){
     continue;
    }
   }
   if(user.getType()>0){
    if(u.getType()!=user.getType()){
     continue;
    }
   }
   reslist.add(u);
  }
  return reslist;
 }

 @Override
 public List getAll() {
  return FileIOUtil.readFromFile(FILE_NAME);
 }

}

package cn.hncu.bookStore.user.dao.factory;

import cn.hncu.bookStore.user.dao.dao.UserDAo;
import cn.hncu.bookStore.user.dao.impl.UserDAOFileImpl;
public class UserDAOFactory {
 private UserDAOFactory(){
 }
 public static UserDAo getUserDAo(){
  return new UserDAOFileImpl();
 }
}

业务逻辑层：

package cn.hncu.bookStore.user.business.ebi;

import java.util.List;

import cn.hncu.bookStore.user.vo.UserModel;
import cn.hncu.bookStore.user.vo.UserQueryModel;

public interface UserEbi {


 public boolean create(UserModel user);
 public boolean delete(String uuid);
 public boolean update(UserModel user);
 public UserModel getSingle(String uuid);
 public List getByCondition(UserQueryModel user);
 public List getAll();
 public abstract List getAllIn();
 public List getAllOut();
}

package cn.hncu.bookStore.user.business.ebo;

import java.util.List;

import cn.hncu.bookStore.common.uuidModelConstance;
import cn.hncu.bookStore.common.uuid.dao.factory.uuidDAOFactory;
import cn.hncu.bookStore.user.business.ebi.UserEbi;
import cn.hncu.bookStore.user.common.UserTypeEnum;
import cn.hncu.bookStore.user.dao.dao.UserDAo;
import cn.hncu.bookStore.user.dao.factory.UserDAOFactory;
import cn.hncu.bookStore.user.vo.UserModel;
import cn.hncu.bookStore.user.vo.UserQueryModel;

public class UserEbo implements UserEbi {

 //注入
 UserDAo dao = UserDAOFactory.getUserDAo();
 @Override
 public boolean create(UserModel user) {
  String uuid=uuidDAOFactory.getUuidDAO().getNextNum(uuidModelConstance.User);
  user.setUuid(uuid);
  return dao.create(user);
 }

 @Override
 public boolean delete(String uuid) {
  return dao.delete(uuid);
 }

 @Override
 public boolean update(UserModel user) {
  return dao.update(user);
 }

 @Override
 public UserModel getSingle(String uuid) {
  return dao.getSingle(uuid);
 }

 @Override
 public List getByCondition(UserQueryModel user) {
  return dao.getByCondition(user);
 }

 @Override
 public List getAll() {
  return dao.getAll();
 }
 @Override
 public List getAllIn() {
  UserQueryModel user=new UserQueryModel();
  user.setType(UserTypeEnum.IN.getType());
  return dao.getByCondition(user);
 }
 public List getAllOut() {
  UserQueryModel user=new UserQueryModel();
  user.setType(UserTypeEnum.OUT.getType());
  return dao.getByCondition(user);
 }

}

package cn.hncu.bookStore.user.business.factory;

import cn.hncu.bookStore.user.business.ebi.UserEbi;
import cn.hncu.bookStore.user.business.ebo.UserEbo;

public class UserEbiFactory {

 private UserEbiFactory() {
 }
 public static UserEbi getUserEbi(){
  return new UserEbo();
 }
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持考高分网。

java书店系统毕业设计 用户模块（2）

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