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Fallbeispiel: Verwendung von Java zur Entwicklung und Implementierung eines Buchhaltungssystems (vollständiger Code)
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- 2018-08-02 12:02:419503Durchsuche
Dieser Artikel ist reiner Code und sehr vollständig. Es handelt sich um ein in Java entwickeltes und implementiertes Buchhaltungssystem. Wenn es etwas Unklares gibt, können Sie es gemeinsam besprechen Auf eventuelle Mängel im Code können Sie uns gerne hinweisen.
Java-Buchhaltungssystem
package com.ss.file;
import java.io.*;
public class FileIO {
private String filename = "tally.txt";
public FileIO() {
File file = new File(filename);
if(!file.exists()) {
try {
file.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public void write(String data,boolean mode) {
try {
FileWriter fw = new FileWriter(filename,mode);
BufferedWriter bw = new BufferedWriter(fw);
bw.write(data);
bw.close();
fw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public String read() {
FileReader fr;
String line = "";
String fileStr = "";
try {
fr = new FileReader(filename);//不能一行行的读
BufferedReader br = new BufferedReader(fr);//可以一行行的读效率高
while((line = br.readLine()) != null) {
fileStr += line + "\n";
}
br.close();
fr.close();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return fileStr;
}
public String getFilename() {
return filename;
}
public void setFilename(String filename) {
this.filename = filename;
}
}package com.ss.oper;
import java.util.Vector;
import com.ss.file.FileIO;
import com.ss.util.Tool;
public class Operation {
FileIO io = new FileIO();
public void add(String data) {
io.write(data, true);
}
public void delete(String data) {
io.write(data, false);
}
public void update(String data) {
io.write(data, false);
}
/*
* 全部查询
*/
public Vector select() {
String str = io.read();
Tool tool = new Tool();
return tool.StringToVec(str);
}
/*
* 条件查询
*/
public Vector select(String type,String remark) {
Vector vecData = new Vector();
Vector vecAll = select();
for(int i = 0;i < vecAll.size();i++) {
Vector smallVec = (Vector)vecAll.get(i);
boolean select = (smallVec.get(1).toString().equals(type) || type.equals(""))
&&
(smallVec.get(4).toString().equals(remark) || remark.equals(""));
if(select) {
vecData.add(smallVec);
}
}
return vecData;
}
}package com.ss.util;
import java.text.SimpleDateFormat;
import java.util.*;
import com.ss.file.FileIO;
public class Tool {
public String getTime() {
Date date = new Date();
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String str = sdf.format(date);
return str;
}
/*
* 将String转化成Vector类型
*/
public Vector StringToVec(String data) {
Vector bigVec = new Vector();
if(data != null && !data.equals("")) {
String[] array = data.split("\n");
for(int i=0;i<array.length;i++) {
String[] a = array[i].split(",");
Vector smallVec = new Vector();
smallVec.add(a[0]);
smallVec.add(a[1]);
smallVec.add(a[2]);
smallVec.add(a[3]);
smallVec.add(a[4]);
smallVec.add(a[5]);
smallVec.add(a[6]);
smallVec.add(a[7]);
smallVec.add(a[8]);
smallVec.add(a[9]);
smallVec.add(a[10]);
bigVec.add(smallVec);
}
}
return bigVec;
}
/*
* 获取下一个流水账号
*/
public int getNewID() {
int id = 1;
FileIO io = new FileIO();
String data = io.read();
if(data != null && !data.equals("")) {
Vector bigVec = StringToVec(data);
Vector smallVecLast = (Vector)bigVec.get(bigVec.size()-1);
String str = (String)smallVecLast.get(0);
id = Integer.parseInt(str) + 1;
}
return id;
}
}package com.ss.view;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import com.ss.oper.Operation;
import com.ss.util.Tool;
import java.util.Vector;
import java.awt.*;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
public class UI_t extends JFrame{
private JComboBox<String> typeCom = new JComboBox<String>();
private JComboBox<String> typeCom2 = new JComboBox<String>();
private JTextField moneyText = new JTextField();
private JTextField stateText = new JTextField();
private JTextField tjText = new JTextField();
private JTextField kehuText = new JTextField();
private JTextField jishuText = new JTextField();
private JTextField jsmoneyText = new JTextField();
private JTextField jsfenchengText = new JTextField();
private JTextField yingliText = new JTextField();
private JTextField wanchengText = new JTextField();
private JTable table = new JTable();
private DefaultTableModel dtm = new DefaultTableModel();
private Vector<String> colName = new Vector<String>();
public UI_t(){
super("个人账目管理系统");
this.setBounds(300, 200, 1200, 800);
init();
}
public void init(){
JScrollPane p1 = new JScrollPane(setTable());
final JSplitPane p2 = new JSplitPane(JSplitPane.VERTICAL_SPLIT,setInfo(),p1);
p2.addComponentListener(new ComponentListener(){
@Override
public void componentResized(ComponentEvent arg0) {
p2.setpiderLocation(0.4);
}
@Override
public void componentHidden(ComponentEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void componentMoved(ComponentEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void componentShown(ComponentEvent arg0) {
// TODO Auto-generated method stub
}
});
this.add(p2);
}
public static void main(String[] args) {
// TODO Auto-generated method stub
new UI_t().setVisible(true);
}
public JPanel setInfo(){
JPanel jp = new JPanel();
jp.setLayout(null);
JLabel label1 = new JLabel("类型");
label1.setBounds(10, 50, 30, 30);
jp.add(label1);
typeCom.addItem("生旦净末丑");
typeCom.addItem("齐怪了");
typeCom.setBounds(50, 50, 60, 30);
jp.add(typeCom);
JLabel label2 = new JLabel("客户名");
label2.setBounds(120, 50, 60, 30);
jp.add(label2);
kehuText.setBounds(160, 50, 60, 30);
jp.add(kehuText);
JLabel jishulabel = new JLabel("技术名");
jishulabel.setBounds(240, 50, 60, 30);
jp.add(jishulabel);
jishuText.setBounds(280, 50, 60, 30);
jp.add(jishuText);
JLabel dingdanlabel = new JLabel("订单金额");
dingdanlabel.setBounds(340, 50, 60, 30);
jp.add(dingdanlabel);
moneyText.setBounds(400, 50, 60, 30);
jp.add(moneyText);
JLabel jsjiagelabel = new JLabel("技术价格");
jsjiagelabel.setBounds(460, 50, 60, 30);
jp.add(jsjiagelabel);
jsmoneyText.setBounds(520, 50, 60, 30);
jp.add(jsmoneyText);
JLabel jsfenchenglabel = new JLabel("技术分成");
jsfenchenglabel.setBounds(580, 50, 60, 30);
jp.add(jsfenchenglabel);
jsfenchengText.setBounds(640, 50, 60, 30);
jp.add(jsfenchengText);
JLabel yinglilabel = new JLabel("盈利");
yinglilabel.setBounds(700, 50, 40, 30);
jp.add(yinglilabel);
yingliText.setBounds(740, 50, 60, 30);
jp.add(yingliText);
JLabel wanchenglabel = new JLabel("完成时间");
wanchenglabel.setBounds(820, 50, 60, 30);
jp.add(wanchenglabel);
wanchengText.setBounds(880, 50, 60, 30);
jp.add(wanchengText);
JLabel statelabel4 = new JLabel("状态信息");
statelabel4.setBounds(940, 50, 60, 30);
stateText.setBounds(1000, 50, 40, 30);
jp.add(statelabel4);
jp.add(stateText);
JButton addBut = new JButton("增加");
addBut.setBounds(400, 100, 60, 30);
jp.add(addBut);
addBut.addMouseListener(new MouseListener() {
@Override
public void mouseReleased(MouseEvent arg0) {
}
@Override
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent arg0) {
}
@Override
public void mouseEntered(MouseEvent arg0) {
}
@Override
public void mouseClicked(MouseEvent arg0) {
String type = (String)typeCom.getSelectedItem();//返回当前所选项
String kehuname=kehuText.getText();
String jishuname=jishuText.getText();
String dingdanmoney=moneyText.getText();
String jishumoney=jsmoneyText.getText();
String jishufencheng=jsfenchengText.getText();
String yingli=yingliText.getText();
String finnishdata=wanchengText.getText();
String remark = stateText.getText();
Tool tool = new Tool();
String kaishitime = tool.getTime();
int id = tool.getNewID();
//修改部分
String data = id + "," + type + "," + kehuname + "," + jishuname + "," +dingdanmoney + ","+jishumoney + ","+jishufencheng + ","+yingli + ","+kaishitime+","+finnishdata+","+remark +"\n";
Operation oper = new Operation();
oper.add(data);
select();
}
});
JButton xgBut = new JButton("修改");
xgBut.setBounds(500, 100, 60, 30);
jp.add(xgBut);
xgBut.addMouseListener(new MouseListener() {
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseClicked(MouseEvent e) {
String data = changeTableData();
Operation oper = new Operation();
oper.update(data);
}
});
JButton deleteBut = new JButton("删除");
deleteBut.setBounds(600, 100, 60, 30);
jp.add(deleteBut);
deleteBut.addMouseListener(new MouseListener() {
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseClicked(MouseEvent e) {
int i = table.getSelectedRow();
dtm.removeRow(i);
String data = changeTableData();
Operation oper = new Operation();
oper.delete(data);
}
});
JLabel chaxunlabel = new JLabel("按店铺查询");
chaxunlabel.setBounds(100, 200, 100, 30);
jp.add(chaxunlabel);
typeCom2.addItem("");
typeCom2.addItem("生旦净末丑");
typeCom2.addItem("齐怪了");
typeCom2.setBounds(180, 200, 60, 30);
jp.add(typeCom2);
JLabel tianjiaolabel = new JLabel("按条件查询");
tianjiaolabel.setBounds(280, 200, 100, 30);
jp.add(tianjiaolabel);
tjText.setBounds(380,200,100,30);
jp.add(tjText);
JButton selectBut = new JButton("查询");
selectBut.setBounds(500, 200, 60, 30);
jp.add(selectBut);
selectBut.addMouseListener(new MouseListener() {
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseClicked(MouseEvent e) {
String type = (String) typeCom2.getSelectedItem();
String remark = tjText.getText();
Operation oper = new Operation();
Vector data = oper.select(type,remark);
dtm.setDataVector(data, colName);
table.setModel(dtm);
}
});
return jp;
}
public JTable setTable(){
colName.add("流水账号");
colName.add("类型");
colName.add("客户名");
colName.add("技术名");
colName.add("订单金额");
colName.add("技术价格");
colName.add("技术分成");
colName.add("盈利");
colName.add("开始时间");
colName.add("完成时间");
colName.add("状态信息");
Operation oper = new Operation();
Vector data = oper.select();
dtm.setDataVector(data, colName);
table.setModel(dtm);
return table;
}
/*
* 从文件中重新读取一遍数据相当于刷新
*/
public void select(){
Operation oper = new Operation();
Vector data = oper.select();
dtm.setDataVector(data, colName);
table.setModel(dtm);
}
/*
* 获取表格内容
*/
public String changeTableData(){
String data = "";
int row = table.getRowCount();
for(int i=0;i<row;i++){
String line = "";
for(int j=0;j<11;j++){
line += dtm.getValueAt(i, j)+",";
}
line += "\n";
data += line;
}
return data;
}
}
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