java实现简单的客户信息管理系统

时间：2022-06-06 14:30 来源：未知作者：时间是测谎仪收藏

这篇文章主要为大家详细介绍了java实现简单的客户信息管理系统，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

本文实例为大家分享了java实现简单客户信息管理系统的具体代码，供大家参考，具体内容如下

全篇文章开源，源码供读者使用。这是一篇关于java的客户信息管理系统的文章，里面简单实现了数据库管理系统的基本功能，可以算是算笔者的学习笔记，也为大家学习提供便利。所以代码都是在一个包下完成的，所以没有使用导包的操作，省去了外卖project的申明，剩下的就写的文章里了。话不多说，看文章吧。
首先给大家看一下总的操作界面（别看简单，里面的还是有东西的），后面就附上实现源码、要求和注释

java实现简单的客户信息管理系统

Customer类

下面是关于Customer类的编写要求：

* 用来封装客户的以下信息
* Sting name
* int age
* char gender
* Stirng phone
* String email
* 提供getset方法
* 构造器自行设定

public class Customer {
 private String name;
 private int age;
 private String gender;
 private String phone;
 private String email;
 
 public Customer() {
  
 }
 
 public Customer(String name,int age,String gender,String phone,String email) {
  this.name = name;
  this.age = age;
  this.gender = gender;
  this.phone = phone;
  this.email = email;
 }
 
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public int getAge() {
  return age;
 }
 public void setAge(int age) {
  this.age = age;
 }
 public String getGender() {
  return gender;
 }
 public void setGender(String gender) {
  this.gender = gender;
 }
 public String getPhone() {
  return phone;
 }
 public void setPhone(String phone) {
  this.phone = phone;
 }
 public String getEmail() {
  return email;
 }
 public void setEmail(String email) {
  this.email = email;
 }
 
}

CustomerList类

下面是关于CustomerList类的编写要求：

* CustomerList类的设计
* Customer[] 用来保存客户信息
* int total 用来保存当前存入客户数量
* 该类至少提供以下的构造器和方法
* public CustomerLIst(int totalCustomer);
* public boolean addCustomer(Customer customer);
* public boolean replaceCustomer(int index,Customer cust);
* public boolean deleteCustomer(int index);
* public Customer[] getallCustomer();
* public Customer getCustomer(int index);
* public int getToal();

public class CustomerList {
 private static Customer customers[];
 private static int total;
 
 public CustomerList(int totalCustomer) {
  customers = new Customer[totalCustomer];
 }
 
 // 添加客户
 public boolean addCustomer(Customer customer) {
  if(total >= customers.length) {
   return false;
  }
  customers[total++] = customer;
  return true;
 }
 
 // 修改指定位置的客户信息
 public boolean replaceCustomer(int index,Customer cust) {
  if(index < 0 || index >= total) {
   return false;
  }
  customers[index] = cust;
  return true;
 }
 
 // 删除指定位置的客户
 public boolean deleteCustomer(int index) {
  if(index < 0 || index >= total) {
   return false;
  }
  for(int i = index;i < total - 1;i++) {
   customers[i] = customers[i+1];
  }
  customers[total - 1] = null;
  total--;
  return true;
 }
 
 // 得到所有客户的信息
 public static Customer[] getallCustomer() {
  Customer[] custs = new Customer[total];
  for(int i = 0;i < total;i++) {
   custs[i] = customers[i];
  }
  return custs;
 }
 
 // 得到指定客户的信息
 public Customer getCustomer(int index) {
  if(index < 0 || index >= total) {
   return null;
  }
  return customers[index];
 }
 
 // 得到Customers中所有客户的个数
 public static int getTotal() {
  return total;
 }
 
}

CustomerView类

CustomerView类的编写

* 主模块：用于用户界面的展示、与用户交互
* CustomerList customerList = new CustomerList(10)
* 应含有的构造器和方法
* private void enterMainMenue()
* private void addNewCustomer()
* private void modifyCustomer()
* private void deleteCustomer()
* private void listAllCustomers()
* private static void main(String[] args)

public class CustomerView {

 CustomerList customerList = new CustomerList(10);

 public CustomerView() {
  Customer customer = new Customer("王龙", 20, "Male", "18965391649", "465989777@qq.com");
  customerList.addCustomer(customer);
 }

 // 用户主菜单
 private void enterMainMenue() {
  System.out.println("-----------------客户信息管理系统 --------------------");
  System.out.println("     1-添加客户");
  System.out.println("     2-修改客户");
  System.out.println("     3-删除客户");
  System.out.println("     4-客户列表");
  System.out.println("     5-退出");
  System.out.println("请选择1-5:");
 }

 // 添加客户
 private void addNewCustomer() {
  // System.out.println("添加客户的操作");
  System.out.println("-----------------添加客户-------------------------");
  Scanner in = new Scanner(System.in);
  System.out.print("姓名：");
  String name = in.nextLine();
  System.out.print("年龄：");
  int age = in.nextInt();
  System.out.print("性别：");
  String gender = in.nextLine();
  System.out.print("电话：");
  String phone = in.nextLine();
  System.out.print("邮箱：");
  String email = in.nextLine();

  // 将上述数据封装到Customer中
  Customer customer = new Customer(name, age, gender, phone, email);
  boolean isSuccess = customerList.addCustomer(customer);
  if (isSuccess == true) {
   System.out.println("---------------添加完成---------------------");
  } else {
   System.out.println("---------------客户目录已满，添加失败！---------------------");
  }
 }

 // 修改客户
 private void modifyCustomer() {
  // System.out.println("修改客户的操作");
  Scanner in = new Scanner(System.in);
  Customer cust;
  int num;
  System.out.print("请选择待修改客户的编号（-1退出）：");
  while (true) {
   num = in.nextInt();
   if (num == -1) {
    return;
   }
   cust = customerList.getCustomer(num - 1);
   if (cust == null) {
    System.out.print("无法找到指定客户，请选择待修改客户的编号（-1退出）：");
   } else {
    break;
   }
  }

  // 开始修改客户信息
  System.out.print("姓名(" + cust.getName() + "):");
  String name = in.nextLine();
  System.out.print("性别(" + cust.getGender() + "):");
  String gender = in.nextLine();
  System.out.print("年龄(" + cust.getAge() + "):");
  int age = in.nextInt();
  System.out.print("电话(" + cust.getPhone() + "):");
  String phone = in.nextLine();
  System.out.print("邮箱(" + cust.getEmail() + "):");
  String email = in.nextLine();

  Customer cust2 = new Customer(name, age, gender, phone, email);
  boolean isreplace = customerList.replaceCustomer(num - 1, cust2);
  if (isreplace == true) {
   System.out.println("---------------修改完成---------------------");
  } else {
   System.out.println("---------------修改失败---------------------");
  }
 }

 // 删除用户
 private void deleteCustomer() {
  // System.out.println("删除客户的操作");
  Scanner in = new Scanner(System.in);
  int num;
  System.out.println("------------------刪除客戶-----------------------");
  while (true) {
   System.out.println("输入要删除的客户的序号（-1退出）：");
   num = in.nextInt();
   if (num == -1) {
    return;
   }
   Customer customer = customerList.getCustomer(num - 1);
   if (customer == null) {
    System.out.println("------------------刪除失败！-----------------------");
    return;
   }

   // 执行删除操作
   System.out.print("是否确认删除(y/n):");
   char isdelete = in.nextLine().charAt(0);
   if (isdelete == 'y') {
    boolean is = customerList.deleteCustomer(num - 1);
    if(is) {
     System.out.println("------------------刪除成功-----------------------");     
    }else {
     System.out.println("------------------刪除失败-----------------------");     
    }
   }else {
    break;
   }
  }
 }

 // 列出所有客户信息
 private void listAllCustomers() {
  System.out.println("---------------客户列表--------------------");
  int total = CustomerList.getTotal();
  if (total == 0) {
   System.out.println("没有客户记录！");
  } else {
   System.out.println("编号\t姓名\t性别\t电话\t\t邮箱\t");
   Customer custs[] = CustomerList.getallCustomer();
   for (int i = 0; i < custs.length; i++) {
    Customer cust = custs[i];
    System.out.println((i + 1) + "\t" + cust.getName() + "\t" + cust.getGender() + "\t" + cust.getPhone()
      + "\t" + cust.getEmail());
   }
  }

  System.out.println("---------------客户列表加载完成--------------------");
 }

 // 主函数
 public static void main(String[] args) {
  CustomerView view = new CustomerView();
  Scanner in = new Scanner(System.in);

  boolean isFlag = true;
  while (isFlag) {
   view.enterMainMenue();
   char menu = in.nextLine().charAt(0);
   switch (menu) {
   case '1':
    view.addNewCustomer();
    break;
   case '2':
    view.modifyCustomer();
    break;
   case '3':
    view.deleteCustomer();
    break;
   case '4':
    view.listAllCustomers();
    break;
   case '5':
    System.out.print("确认是否退出(y/n):");
    char flag = in.nextLine().charAt(0);
    if (flag == 'y') {
     isFlag = false;
    }
    break;
   }
   // isFlag = false;
  }
  in.close();
 }
}

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