Java模拟公司置办货物系统（一）

￡神魔★判官ぃ 2022-08-04 11:44 70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

第一步：首先创建Employeer类，代表员工类.

package com.jereh14;
    
    public class Employeer implements java.io.Serializable{ 
    
        private String name;
        private int empNo;
        private String pwd;
        private String lev;
    
        public String getName() {
            return name;
        }
        public void setName(String name) {
            this.name = name;
        }
        public int getEmpNo() {
            return empNo;
        }
        public void setEmpNo(int empNo) {
            this.empNo = empNo;
        }
        public String getPwd() {
            return pwd;
        }
        public void setPwd(String pwd) {
            this.pwd = pwd;
        }
        public String getLev() {
            return lev;
        }
        public void setLev(String lev) {
            this.lev = lev;
        }
    }

定义EmployeerBiz类，实现员工增删改查功能.

package com.jereh14;
    
    import java.io.*;
    import java.util.*;
    
    public class EmployeerBiz {
    
        private List<Employeer> list = new ArrayList<Employeer>();
    
        public void addEmp(Employeer emp){
    
            readDb();
            list.add(emp);
            writeDb();
        }
    
        public void updateEmp(Employeer emp){
    
            readDb();
            Iterator<Employeer> i = list.iterator();
            while(i.hasNext()){
                Employeer e = i.next();
                if(e.getEmpNo()==emp.getEmpNo()){
                    list.remove(e);
                    list.add(emp);
                }
            }
            writeDb();
        }
    
        public void deleteEmp(int empNo){
    
            readDb();
            Iterator<Employeer> i = list.iterator();
            while(i.hasNext()){
                Employeer e = i.next();
                if(e.getEmpNo() == empNo){
                    list.remove(e);
                    break;
                }
            }
            writeDb();
        }
    
        public String searchPor(int userId,String pwd){
            readDb();
            String type = "";
            Iterator<Employeer> i = list.iterator();
            while(i.hasNext()){
                Employeer e = i.next();
                if(e.getEmpNo()==userId&&e.getPwd().equals(pwd)){
                    type = e.getLev();
                    break;
                }else{
                    type = null;
                }
            }
            writeDb();
            return type;
        }
    
        public void showEmp(){
    
            readDb();
            Iterator<Employeer> i = list.iterator();
            while(i.hasNext()){
                Employeer e = i.next();
                System.out.println("\t"+e.getEmpNo()+"\t"+e.getName()+"\t"+e.getPwd()+"\t"+e.getLev());
            }
            writeDb();
        }
    
        public boolean check(int upEmpNo){
    
            Iterator<Employeer> i = list.iterator();
            boolean bool = false;
            while(i.hasNext()){
                Employeer e = i.next();
                if(e.getEmpNo() == upEmpNo){
                    bool = true;
                    break;
                }else{
                    bool = false;
                }
            }
            return bool;
        }
    
        public void readDb(){
    
            FileInputStream fis  = null;
            ObjectInputStream is = null;
            InputStreamReader isr = null;
            BufferedReader bis = null;
            try {
                fis = new FileInputStream("F:\\test\\Employeer.txt");
                is = new ObjectInputStream(fis);
                list = (List<Employeer>) 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\\Employeer.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EmployeerView，用于与用户交互。

package com.jereh14;
    
    import java.util.*;
    
    public class EmployeerView {
    
        public void empView(){
    
            Scanner scn      = new Scanner(System.in);
            Employeer emp    = null;
            EmployeerBiz elb = new EmployeerBiz();
    
            System.out.println("===============欢迎来到雇员管理===============");
    
            while(true){
                System.out.println("\t\t1、添加雇员\n\t\t2、修改雇员\n\t\t3、删除雇员\n\t\t4、查看雇员\n\t\t5、退出系统");
                System.out.println("********************************************");
                System.out.print("请选择您的操作：");
    
                int chooseNum = scn.nextInt();
                switch(chooseNum){
                case 1:
                    System.out.println("===================添加雇员==================");
                    System.out.print("请输入雇员编号：");
                    int empNo = scn.nextInt();
                    System.out.print("请输入雇员姓名：");
                    String name = scn.next();
                    System.out.print("请输入登录密码：");
                    String pwd = scn.next();
                    System.out.print("请输入雇员类型：");
                    String lev = scn.next();
    
                    emp = new Employeer();
                    emp.setEmpNo(empNo);
                    emp.setName(name);
                    emp.setPwd(pwd);
                    emp.setLev(lev);
    
                    elb.addEmp(emp);
    
                    if(elb.check(empNo)){
                        System.out.println("--添加成功！--");
                    }else{
                        System.out.println("--添加失败！--");
                    }
                    System.out.println("********************************************");
                    break;
                case 2:
                    System.out.println("===================修改雇员==================");
                    System.out.print("请输入雇员编号：");
                    int upEmpNo = scn.nextInt();
                    if(elb.check(upEmpNo)){
                        System.out.print("请输入要修改的姓名：");
                        String upName = scn.next();
                        System.out.print("请输入要修改的密码：");
                        String upPwd = scn.next();
                        System.out.print("请输入要修改的类型：");
                        String upLev = scn.next();
    
                        emp = new Employeer();
                        emp.setEmpNo(upEmpNo);
                        emp.setName(upName);
                        emp.setPwd(upPwd);
                        emp.setLev(upLev);
    
                        elb.updateEmp(emp);
    
                        System.out.println("--修改成功！--");
    
                    }else{
                        System.out.println("没有该雇员！");
                    }
                    System.out.println("********************************************");
                    break;
                case 3:
                    System.out.println("===================删除雇员==================");
                    System.out.print("请输入雇员编号：");
                    int delEmpNo = scn.nextInt();
                    if(elb.check(delEmpNo)){
                        elb.deleteEmp(delEmpNo);
                        System.out.println("--删除成功！--");
                    }else{
                        System.out.println("没有该雇员！");
                    }
                    System.out.println("********************************************");
                    break;
                case 4:
                    System.out.println("===================查看雇员==================");
                    System.out.println("\t编号\t姓名\t密码\t类型");
                    elb.showEmp();
                    System.out.println("********************************************");
                    break;
                case 5:
                    System.out.println("谢谢您的使用！");
                    System.exit(0);
                    break;
                }
            }
        }
    }

运行效果图：   
![这里写图片描述][20150824191724776]   
第二步：创建Por类代表订单类。

package com.jereh14;
    
    public class Por 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 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 getPart_use() {
            return part_use;
        }
        public void setPart_use(String part_use) {
            this.part_use = part_use;
        }
        public String getPnd() {
            return pnd;
        }
        public void setPnd(String pnd) {
            this.pnd = pnd;
        }
        public String getRgdt() {
            return rgdt;
        }
        public void setRgdt(String rgdt) {
            this.rgdt = rgdt;
        }
        public int getStus() {
            return stus;
        }
        public void setStus(int stus) {
            this.stus = stus;
        }
        public String getRgdt_emp() {
            return rgdt_emp;
        }
        public void setRgdt_emp(String rgdt_emp) {
            this.rgdt_emp = rgdt_emp;
        }
        public String getCf_date() {
            return cf_date;
        }
        public void setCf_date(String cf_date) {
            this.cf_date = cf_date;
        }
        public String getCf_emp() {
            return cf_emp;
        }
        public void setCf_emp(String cf_emp) {
            this.cf_emp = cf_emp;
        }
        private int por_no;
        private String part_desc;
        private String part_type;
        private int count;
        private String part_use;
        private String pnd;
        private String rgdt;
        private int stus;
        private String rgdt_emp;
        private String cf_date;
        private String cf_emp;
    }

定义PorBiz类，实现订单的增删改查。

package com.jereh14;
    
    import java.io.*;
    import java.util.*;
    
    public class PorBiz {
    
        private List<Por> list = new ArrayList<Por>();
    
        public void addPor(Por por){
    
            readDb();
            list.add(por);
            writeDb();
        }
    
        public void updatePor(Por por){
    
            readDb();
            Iterator<Por> i = list.iterator();
            while(i.hasNext()){
                Por p = i.next();
                if(p.getPor_no()==por.getPor_no()){
                    list.remove(p);
                    list.add(por);
                }
            }
            writeDb();
        }
    
        public boolean changeStuts(int porId,int chooseNum){
            readDb();
            boolean bool = false;
            Iterator<Por> i = list.iterator();
            while(i.hasNext()){
                Por p = i.next();
                if(p.getPor_no() == porId){
                    if(chooseNum == 1){
                        p.setStus(2);
                    }else if(chooseNum == 2){
                        p.setStus(3);
                    }else {
                        p.setStus(4);
                    }
                    bool = true;
                    break;
                }else{
                    bool = false;
                }
            }
            writeDb();
            return bool;
        }
    
        public void deletePor(int del_por_no){
            readDb();
            Iterator<Por> i = list.iterator();
            while(i.hasNext()){
                Por p = i.next();
                if(p.getPor_no() == del_por_no){
                    list.remove(p);
                    break;
                }
            }
            writeDb();
        }
    
    
        //传入type,决定输入的订单类型,1表示全部输出,2表示只输出状态为1的订单.
        public void showPor(int type){
    
            readDb();
            Iterator<Por> i = list.iterator();
            if(type == 1){
                while(i.hasNext()){
                    Por p = i.next();
                    System.out.println(p.getPor_no()+"\t"+p.getPart_desc()+"\t"+p.getPart_type()+"\t"+p.getCount()+"\t"+
                            p.getPart_use()+"\t"+p.getPnd()+"\t"+p.getRgdt()+"\t"+p.getStus()+"\t"+p.getRgdt_emp()+"\t"+
                            p.getCf_date()+"\t"+p.getCf_emp());
                }
            }else if(type == 2){
                while(i.hasNext()){
                    Por p = i.next();
                    if(p.getStus()==1){
                    System.out.println(p.getPor_no()+"\t"+p.getPart_desc()+"\t"+p.getPart_type()+"\t"+p.getCount()+"\t"+
                            p.getPart_use()+"\t"+p.getPnd()+"\t"+p.getRgdt()+"\t"+p.getStus()+"\t"+p.getRgdt_emp()+"\t"+
                            p.getCf_date()+"\t"+p.getCf_emp());
                    }
                }
            }else{
                while(i.hasNext()){
                    Por p = i.next();
                    if(p.getStus()==2){
                    System.out.println(p.getPor_no()+"\t"+p.getPart_desc()+"\t"+p.getPart_type()+"\t"+p.getCount()+"\t"+
                            p.getPart_use()+"\t"+p.getPnd()+"\t"+p.getRgdt()+"\t"+p.getStus()+"\t"+p.getRgdt_emp()+"\t"+
                            p.getCf_date()+"\t"+p.getCf_emp());
                    }
                }
            }
            writeDb();
        }
    
        public boolean check(int por_no){
            Iterator<Por> i = list.iterator();
            boolean bool = false;
            while(i.hasNext()){
                Por p = i.next();
                if(p.getPor_no() == por_no){
                    bool = true;
                    break;
                }else{
                    bool = false;
                }
            }
            return bool;
        }
    
        public Por getPor(int porId){
    
            Iterator<Por> i = list.iterator();
            while(i.hasNext()){
                Por p = i.next();
                if(p.getPor_no() == porId){
                    return p;
                }else{
                    p = null;
                }
            }
            return null;
        }
    
        public void readDb(){
    
            FileInputStream fis  = null;
            ObjectInputStream is = null;
            try {
                fis = new FileInputStream("F:\\test\\Por.txt");
                is = new ObjectInputStream(fis);
                list = (List<Por>) 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\\Por.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PorView类，用于与用户交互。

package com.jereh14;
    
    import java.util.Scanner;
    
    public class PorView {
    
        public void porView(){
    
            Scanner scn = new Scanner(System.in);
            Por por     = null;
            PorBiz pb   = new PorBiz();
    
            System.out.println("===============欢迎来到采购申请===============");
    
            while(true){
                System.out.println("\t\t1、添加申请\n\t\t2、修改申请\n\t\t3、删除申请\n\t\t4、查看申请\n\t\t5、退出系统");
                System.out.println("********************************************");
                System.out.print("请选择您的操作：");
    
                int chooseNum = scn.nextInt();
                switch(chooseNum){
                case 1:
                    System.out.println("===================添加申请==================");
                    System.out.print("请输入订单编号：");
                    int por_no = scn.nextInt();
                    System.out.print("请输入订单物品：");
                    String part_desc = scn.next();
                    System.out.print("请输入物品型号：");
                    String part_type = scn.next();
                    System.out.print("请输入物品数量：");
                    int count = scn.nextInt();
                    System.out.print("请输入物品用途：");
                    String part_use = scn.next();
                    System.out.print("请输入需要日期：");
                    String pnd = scn.next();
                    System.out.print("请输入申请日期：");
                    String rgdt = scn.next();
                    System.out.print("请输入订单状态：");
                    int stus = scn.nextInt();
                    System.out.print("请输入申请者：");
                    String rgdt_emp = scn.next();
                    System.out.print("请输入批准日期：");
                    String cf_date = scn.next();
                    System.out.print("请输入审核者：");
                    String cf_emp = scn.next();
    
                    por = new Por();
                    por.setPor_no(por_no);
                    por.setPart_desc(part_desc);
                    por.setPart_type(part_type);
                    por.setCount(count);
                    por.setPart_use(part_use);
                    por.setPnd(pnd);
                    por.setRgdt(rgdt);
                    por.setStus(stus);
                    por.setRgdt_emp(rgdt_emp);
                    por.setCf_date(cf_date);
                    por.setCf_emp(cf_emp);
    
                    pb.addPor(por);
    
                    if(pb.check(por_no)){
                        System.out.println("--添加成功！--");
                    }else{
                        System.out.println("--添加失败！--");
                    }
                    System.out.println("********************************************");
                    break;
                case 2:
                    System.out.println("===================修改申请==================");
                    System.out.print("请输入申请编号：");
                    int up_por_no = scn.nextInt();
                    if(pb.check(up_por_no)){
                        System.out.print("请输入订单物品：");
                        String up_part_desc = scn.next();
                        System.out.print("请输入物品型号：");
                        String up_part_type = scn.next();
                        System.out.print("请输入物品数量：");
                        int up_count = scn.nextInt();
                        System.out.print("请输入物品用途：");
                        String up_part_use = scn.next();
                        System.out.print("请输入需要日期：");
                        String up_pnd = scn.next();
                        System.out.print("请输入申请日期：");
                        String up_rgdt = scn.next();
                        System.out.print("请输入订单状态：");
                        int up_stus = scn.nextInt();
                        System.out.print("请输入申请者：");
                        String up_rgdt_emp = scn.next();
                        System.out.print("请输入批准日期：");
                        String up_cf_date = scn.next();
                        System.out.print("请输入审核者：");
                        String up_cf_emp = scn.next();
    
                        por = new Por();
                        por.setPor_no(up_por_no);
                        por.setPart_desc(up_part_desc);
                        por.setPart_type(up_part_type);
                        por.setCount(up_count);
                        por.setPart_use(up_part_use);
                        por.setPnd(up_pnd);
                        por.setRgdt(up_rgdt_emp);
                        por.setStus(up_stus);
                        por.setRgdt_emp(up_rgdt_emp);
                        por.setCf_date(up_cf_date);
                        por.setCf_emp(up_cf_emp);
    
                        pb.updatePor(por);
    
                        System.out.println("--修改成功！--");
    
                    }else{
                        System.out.println("--没有该申请！--");
                    }
                    System.out.println("********************************************");
                    break;
                case 3:
                    System.out.println("===================删除申请==================");
                    System.out.print("请输入申请编号：");
                    int del_por_no = scn.nextInt();
                    if(pb.check(del_por_no)){
                        pb.deletePor(del_por_no);
                        System.out.println("--删除成功！--");
                    }else{
                        System.out.println("--没有该申请！--");
                    }
                    System.out.println("********************************************");
                    break;
                case 4:
                    System.out.println("===================查看申请==========================================================\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(1);
                    System.out.println("\n************************************************************************************");
                    break;
                case 5:
                    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][20150824192421393]  
定义PorCfView类，用于审批订单。

package com.jereh14;
    
    import java.util.Scanner;
    
    public class PorCfView {
    
        public void showInfoView(){
    
            Scanner scn = new Scanner(System.in);
            PorBiz pb   = new PorBiz();
    
            while(true){
                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(2);
                System.out.println("\n******************************1、批准\t2、驳回\t3、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(pb.changeStuts(porId,1)){
                        System.out.println("--订单审批完成！--\n");
                    }else{
                        System.out.println("--该订单不存在！--\n");
                    }
                    break;
                case 2:
                    System.out.print("请输入您要操作的单号：");
                    porId = scn.nextInt();
                    if(pb.changeStuts(porId,2)){
                        System.out.println("--该订单被拒绝！--\n");
                    }else{
                        System.out.println("--该订单不存在！--\n");
                    }
                    break;
                case 3:
                    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][20150824192929283]

下篇继续。

[20150824191724776]: /images/20220731/6a782f5cdc6d4036a4b5b99103f58e86.png
[20150824192421393]: /images/20220731/87e6c7306d854b8fb36e01e2f076afd6.png
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