java课程设计 客户管理系统源代码

完整代码：

1.客户类（class person）：

package客户管理系统;

public class Person {

private int num;

private String name;

private String address;

private String sex;

public Person(){}

public Person(int num,String name,String address,String sex){ this.num=num;

https://www.360docs.net/doc/bb16949716.html,=name;

this.address=address;

this.sex=sex;

}

public void setNum(int num){

this.num=num;

}

public int getNum(){

return num;

}

public void setName(String name){

https://www.360docs.net/doc/bb16949716.html,=name;

}

public String getName(){

return name;

}

public void setAddress(String address){ this.address=address;

}

public String getAddress(){

return address;

}

public void setSex(String sex){

this.sex=sex;

}

public String getSex(){

return sex;

}

public String toString() {

return"\t"+num+"\t"+name+"\t"+address+"\t"+sex;

}

}

2.菜单类(class Menu)：

package客户管理系统;

import java.util.Scanner;

public class Menu {

Scanner input=new Scanner(System.in);

public Menu() {}

public int showMenu() {

System.out.println("***********************************");

System.out.println("客户管理系统");

System.out.println("===================================");

System.out.println("【1】增加");

System.out.println("【2】删除");

System.out.println("【3】修改");

System.out.println("【4】查询");

System.out.println("【5】浏览");

System.out.println("【6】退出");

System.out.println("***********************************");

System.out.print("请选择操作：");

return input.nextInt();

}

public int subMenu() {

System.out.println("\t【查询客户】");

System.out.println("\t[1]按客户编号查询");

System.out.println("\t[2]按客户姓名查询");

System.out.println("\t[3]按地址查询");

System.out.println("\t[4]退出");

System.out.println("\t请选择查询编号");

return input.nextInt();

}

}

3.实际操作类（class FileOperate ）：package客户管理系统;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileNotFoundException; import java.io.FileReader;

import java.io.IOException;

import java.io.PrintWriter;

import java.util.ArrayList;

import java.util.List;

import java.util.Scanner;

public class FileOperate {

private static String INFO="D:/info.dat";

File file = new File(INFO);

Scanner input=new Scanner(System.in);

public FileOperate() {

if (!file.exists()) {

try {

file.createNewFile();

}catch(IOException e) {

e.printStackTrace();

}

}

}

public List getList() throws NumberFormatException,IOException{ BufferedReader br=new BufferedReader(new FileReader(file));

String msg=null;

List list =new ArrayList();

while ((msg =br.readLine())!=null) {

String arr[]=msg.split("\t");

int num=Integer.parseInt(arr[0]);

String name =arr[1];

String address=arr[2];

String sex=arr[3];

Person person =new Person(num,name,address,sex);

list.add(person);

}

br.close();

return list;

}

private void savelist(List list)throws FileNotFoundException{ PrintWriter pw=new PrintWriter(new File(INFO));

for (Person c:list) {

pw.format("%d\t %s\t %s\t %s\t

\r\n",c.getNum(),c.getName(),c.getAddress(),c.getSex());

}

pw.close();

}

public int getper(int num) throws NumberFormatException,IOException{ List list=getList();

for (int i=0;i

Person per=list.get(i);

if(num==per.getNum()) {

return i;

}

}

return -1;

}

//增加

public void insert() throws NumberFormatException,IOException{ System.out.println("请输入编号：");

int num=input.nextInt();

int index=getper(num);

if (index!=-1) {

System.out.println("此编号已存在！");}

else{

System.out.println("请输入姓名：");

String name=input.next();

System.out.println("请输入地址：");

String address=input.next();

System.out.println("请输入性别：");

String sex=input.next();

Person person=new Person(num,name,address,sex);

List list=getList();

list.add(person);

savelist(list);

System.out.println("新增成功！");

}

}

//删除

public void delete() throws NumberFormatException,IOException{ System.out.println("请输入要删除的编号：");

int num=input.nextInt();

List list=getList();

boolean flag=false;

for(int i=0;i

Person per=list.get(i);

if(num==per.getNum()) {

showTitle();

System.out.println(per);

System.out.println("是否确定删除（Y/N）？");

String answer=input.next();

if("Y".equalsIgnoreCase(answer)) {

list.remove(i);

savelist(list);

System.out.println("删除成功!");

}

flag=true;

break;

}

}

if (!flag) {

System.out.println("该客户不存在！");

}

}

//修改

public void update() throws NumberFormatException,IOException{ shoAll();

System.out.println("请输入编号：\n");

int num=input.nextInt();

int Id=getper(num);

if (Id!=-1) {

System.out.println("请输入姓名:");

String name=input.next();

System.out.println("请输入地址:");

String address=input.next();

System.out.println("请输入性别:");

String sex=input.next();

Listlist=getList();

Person per=list.get(Id);

per.setName(name);

per.setAddress(address);

per.setSex(sex);

showTitle();

System.out.println(per);

savelist(list);

System.out.println("修改成功！");

}else {

System.out.println("编号不存在！");

}

}

//查询

public void search() throws NumberFormatException,IOException{ boolean flag=true;

Listlist=getList();

if(list.size()!=0) {

while(flag) {

int slt=new Menu().subMenu();

switch (slt) {

case 1:

System.out.print("\t请输入编号：");

findId(input.nextInt());

break;

case 2:

System.out.print("\t请输入姓名：");

findName(input.next());

break;

case 3:

System.out.print("\t请输入地址：");

findAddress(input.next());

break;

case 4:flag=quit();

break;

}

}

}else {

System.out.println("无任何信息！");

}

}

//按编号查询

public void findId(int num) throws NumberFormatException,IOException{ Listlist=getList();

boolean flag=false;

for (int i=0;i

Person per =list.get(i);

if(num==per.getNum()) {

showTitle();

System.out.println(per);

flag=true;

break;

}

}

if (!flag) {

System.out.println("\t该客户不存在！");

}

}

//按姓名查询

public void findName(String name) throws NumberFormatException,IOException{ Listlist=getList();

boolean flag=false;

for (int i=0;i

Person per =list.get(i);

if(name.equals(per.getName())) {

showTitle();

System.out.println(per);

flag=true;

break;

}

}

if (!flag) {

System.out.println("\t该客户不存在！");

}

}

//按地址查找

public void findAddress(String address) throws NumberFormatException,IOException{

Listlist=getList();

boolean flag=false;

for (int i=0;i

Person per =list.get(i);

if(address.equals(per.getAddress())) {

showTitle();

flag=true;

System.out.println(per);

break;

}

}

if (!flag) {

System.out.println("\t该客户不存在！");

}

}

//退出查询

public boolean quit() {

System.out.println("是否确定退出（Y/N）？");

if ("Y".equalsIgnoreCase(input.next())) {

System.out.println("退出成功！");

return false;

}else {

return true;

}

}

//浏览

public void shoAll() throws NumberFormatException,IOException{ Listlist=getList();

if (list.size()!=0) {

showTitle();

for (Person person:list) {

System.out.println(person.toString());

}

}else {

System.out.println("无任何信息！");

}

}

public void showTitle() {

System.out.println("客户信息为：\n\t编号\t姓名\t地址\t性别");

}

//退出系统

public boolean exit() {

System.out.println("是否确定退出（Y/N）？");

return!"Y".equalsIgnoreCase(input.next())?true:false;

}

}

4.测试类（class Text）:

package客户管理系统;

import java.io.IOException;

public class Test {

public static void main(String[] args) throws NumberFormatException, IOException {

Menu m=new Menu();

boolean flag=true;

FileOperate fo=new FileOperate(); while(flag) {

int slt=m.showMenu();

switch(slt) {

case 1:fo.insert();//增加

break;

case 2:fo.delete();//删除

break;

case 3:fo.update();//修改

break;

case 4:fo.search();//查询

break;

case 5:fo.shoAll();//浏览

break;

case 6: //退出

flag=fo.exit();

if(!flag)