Java模拟公司置办货物系统（二）

比眉伴天荒 2022-08-04 11:44 59阅读 0赞

采用MVC风格，将数据写入文件，模拟公司置办货物系统。   
A类表示普通员工，B类表示部门精力，C类表示采购部，D类表示资源管理部。

订单状态 1.表示申请状态 2.表示通过审批 3.表示未通过审批 4.表示订单完成，购物完成

第三步：创建Po类，代表采购部批准的订单类.

package com.jereh14;
    
    public class Po implements java.io.Serializable{ 
    
        public int getPor_no() {
            return por_no;
        }
        public void setPor_no(int por_no) {
            this.por_no = por_no;
        }
        public String getPart_desc() {
            return part_desc;
        }
        public int getPo_no() {
            return po_no;
        }
        public void setPo_no(int po_no) {
            this.po_no = po_no;
        }
        public double getPrice() {
            return price;
        }
        public void setPrice(double price) {
            this.price = price;
        }
        public String getComp() {
            return comp;
        }
        public void setComp(String comp) {
            this.comp = comp;
        }
        public String getOrd_date() {
            return ord_date;
        }
        public void setOrd_date(String ord_date) {
            this.ord_date = ord_date;
        }
        public String getOrd_emp() {
            return ord_emp;
        }
        public void setOrd_emp(String ord_emp) {
            this.ord_emp = ord_emp;
        }
        public void setPart_desc(String part_desc) {
            this.part_desc = part_desc;
        }
        public String getPart_type() {
            return part_type;
        }
        public void setPart_type(String part_type) {
            this.part_type = part_type;
        }
        public int getCount() {
            return count;
        }
        public void setCount(int count) {
            this.count = count;
        }
    
        public String getPnd() {
            return pnd;
        }
        public void setPnd(String pnd) {
            this.pnd = pnd;
        }
    
        public int getStus() {
            return stus;
        }
        public void setStus(int stus) {
            this.stus = stus;
        }
    
        private int po_no;
        private int por_no;
        private String part_desc;
        private String part_type;
        private int count;
        private double price;
        private String comp;
        private String pnd;
        private String ord_date;
        private String ord_emp;
        private int stus;
    
    }

定义PoBiz类，实现购买的物品入库方法.

package com.jereh14;
    
    import java.io.*;
    import java.util.*;
    
    public class PoBiz {
    
    private List<Po> list = new ArrayList<Po>();
    
        public void addPo(Po po){
    
            readDb();
            list.add(po);
            writeDb();
        }
        public void showPo(){
    
            readDb();
            Iterator<Po> i = list.iterator();
                while(i.hasNext()){
                    Po p = i.next();
                    System.out.println(p.getPo_no()+"\t"+p.getPor_no()+"\t"+p.getPart_desc()+"\t"+p.getPart_type()+"\t"+
                            p.getCount()+"\t"+p.getPrice()+"\t"+p.getStus()+"\t"+p.getComp()+"\t"+p.getPnd()+"\t"+p.getOrd_date()+"\t"+
                            p.getOrd_emp());
                }
            writeDb();
        }
    
        public boolean check(int por_no){
            Iterator<Po> i = list.iterator();
            boolean bool = false;
            while(i.hasNext()){
                Po p = i.next();
                if(p.getPor_no() == por_no){
                    bool = true;
                    break;
                }else{
                    bool = false;
                }
            }
            return bool;
        }
    
        public void readDb(){
    
            FileInputStream fis  = null;
            ObjectInputStream is = null;
            try {
                fis = new FileInputStream("F:\\test\\Po.txt");
                is = new ObjectInputStream(fis);
                list = (List<Po>) is.readObject();
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (ClassNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                try {
                    is.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
    
        }
    
        public void writeDb(){
    
            FileOutputStream fos  = null;
            ObjectOutputStream os = null;
            try {
                fos = new FileOutputStream("F:\\test\\Po.txt");
                os  = new ObjectOutputStream(fos);
                os.writeObject(list);
            } catch (FileNotFoundException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } finally {
                try {
                    os.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }
    }

定义PoView类，用于采购部确定经过审批的界面，订单状态变为4。

package com.jereh14;
    
    import java.text.SimpleDateFormat;
    import java.util.Date;
    import java.util.Scanner;
    
    public class PoView {
    
        private int i = 0;
        public void showInfoView(){
    
            Scanner scn = new Scanner(System.in);
            PorBiz pb   = new PorBiz();
            PoBiz  pbz  = new PoBiz();
            Po po = null;
            Por por = null;
    
    
            System.out.println("=======================================订单审批=======================================\n");
            System.out.println("编号\t名称\t型号\t数量\t用途\t需要日期\t申请日期\t状态\t申请者\t批准日期\t审核者\n");
            pb.showPor(3);
            while(true){
    
                System.out.println("\n******************************1、选单订货\t\t2、退出*******************************");
                System.out.print("请选择您的操作：");
                int chooseNum = scn.nextInt();
                int porId = -1;
                switch(chooseNum){
                case 1:
                    System.out.print("请输入您要操作的单号：");
                    porId = scn.nextInt();
                    if((por=pb.getPor(porId))!=null){
                        System.out.print("请输入订货数量：");
                        int por_num = scn.nextInt();
                        System.out.print("请输入单价：");
                        double price = scn.nextDouble();
                        System.out.print("请输入供应商：");
                        String comp = scn.next();
    
                        Date date = new Date();
                        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM");
                        po = new Po();
                        po.setPo_no(i++);
                        po.setPor_no(por.getPor_no());
                        po.setPart_desc(por.getPart_desc());
                        po.setPart_type(por.getPart_type());
                        po.setCount(por_num);
                        po.setPrice(price);
                        po.setComp(comp);
                        po.setPnd(por.getPnd());
                        po.setOrd_date(sdf.format(date));
                        po.setOrd_emp(por.getRgdt_emp());
                        po.setStus(4);
    
                        pbz.addPo(po);
                        pb.changeStuts(porId, 3);
                        if(pb.check(porId)){
                            System.out.println("--添加成功！--");
                        }else{
                            System.out.println("--添加失败！--");
                        }
                    }else{
                        System.out.println("--该订单不存在！--\n");
                    }
                    break;
                case 2:
                    System.exit(0);
                    System.out.println("谢谢您的使用!");
                    break;
                    default:
                        System.out.println("--输入有误！--");
                        break;
                }
            }
        }
    }

![这里写图片描述][20150824194708467]  
定义PoCfView类，用来仓库物品查询.

package com.jereh14;
    
    import java.util.Scanner;
    
    public class PoCfView {
    
        public void showInfoView(){
            Scanner scn = new Scanner(System.in);
            PorBiz pb   = new PorBiz();
            PoBiz  pbz  = new PoBiz();
    
            while(true){
                System.out.println("=======================================仓库查询=======================================\n");
                System.out.println("========================请选择您的操作：1、查看仓库\t\t2、退出======================");
                int chooseNum = scn.nextInt();
                switch(chooseNum){
                case 1:
                    System.out.println("\n订货编号\t申请编号\t名称\t型号\t数量\t单价\t状态\t供应商\t需要日期\t订货日期\t订货者\n");
                    pbz.showPo();
                    System.out.println("\n************************************************************************************");               break;
                case 2:
                    System.out.println("谢谢您的使用！");
                    System.exit(0);
                    break;
                    default:
                        System.out.println("--输入有误！--");
                        break;
                }
            }
        }
    
    }

运行效果图：![这里写图片描述][20150824195000035]  
第四歩：定义Test类将各个View组合起来。

package com.jereh14;
    
    import java.util.Scanner;
    
    public class Test {
    
        public static void main(String[] args){
    
            Scanner scn      = new Scanner(System.in);
            EmployeerBiz elb = new EmployeerBiz();
            EmployeerView elv = new EmployeerView();
            PorView prv       = new PorView();
            PorCfView pcv    = new PorCfView();
            PoCfView pfv      = new PoCfView();
            PoView pv        = new PoView();
    
    
            System.out.println("==========================欢迎来到大冰公司===========================");
            while(true){    
                System.out.print("\n\t\t\t请输入工号：");
                int userId = scn.nextInt();
                System.out.print("\t\t\t请输入密码：");
                String password = scn.next();
                String type = elb.searchPor(userId, password);
                if(type!=null){
                    char ch = type.charAt(0);
                    switch(ch){
                    case 'A':
                        System.out.println("\n经检测，你的身份是普通员工，可以进行订单申请\n");
                        prv.porView();
                        break;
                    case 'B':
                        System.out.println("\n经检测，你的身份是部门经理,可以进行订单处理\n");
                        pcv.showInfoView();
                        break;
                    case 'C':
                        System.out.println("\n经检测，你的身份是采购部人员，可以将批准的订单\n");
                        pv.showInfoView();
                        break;
                    case 'D':
                        System.out.println("\n经检测，你的身份是资源管理部人员\n");
                        pfv.showInfoView();
                        break;
                        default:
                            break;
                    }
                }else if(userId==0&&password.equals("0")){
                    System.out.println("\n经检测您是尊贵的管理员\n");
                    elv.empView();
                }else{
                    System.out.println("你不是本公司员工！");
                }
            }
        }
    }

[20150824194708467]: /images/20220731/98069a8e55d04541933da48da5832160.png
[20150824195000035]: /images/20220731/552b6e7058c0433fa1f0042c8d5c98ac.png