Java ：个人账目管理系统
先贴上项目地址：https://github.com/sunlechuan/PersonTally
这个程序是学期末，实训老师带着写的，主要功能有：1.添加账目，2.修改账目，3.删除帐目，4.查询账目。
这是程序的主要界面：
类的构成：1.FileIO主要是创建新的文本文档和写入读取文件。
2.Tool获取时间，流水账号，将文本中的String类型转化成Vector；
3.Operation操作类添加、修改、查询数据。
4.UI_t界面类，设置页面，添加监听器。
程序中有点瑕疵，如果说是存入的数据为空，就会直接报异常，这时候需要把文本文档删除才可以，所以我自己在‘增加’的监听器中增加了一个if语句判断金额输入框和备注框是否为空，如果为空的话就跳出方法。
if(money.equals("") || remark.equals(""))
{
return ;
}
如果想要修改数据需要在表格中输入完成后点击一下其他表格，再点击一下'修改'按钮即可。
以下是代码：
FileIO类
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;
}
}Tool类
package com.ss.util;
import java.text.SimpleDateFormat;
import java.util.*;
import com.slc.file.FileIO;
public class Tool {
/*
* 获取时间
*/
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;iOperation类
package com.ss.oper;
import java.util.Vector;
import com.slc.file.FileIO;
import com.slc.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;
}
}UI_t(界面)类
package com.ss.view;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import com.slc.oper.Operation;
import com.slc.util.Tool;
import java.awt.*;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.Vector;
public class UI_t extends JFrame{
private JComboBox typeCom = new JComboBox();
private JComboBox typeCom2 = new JComboBox();
private JTextField moneyText = new JTextField();
private JTextField loteText = new JTextField();
private JTextField tjText = new JTextField();
private JTable table = new JTable();
private DefaultTableModel dtm = new DefaultTableModel();
private Vector colName = new Vector();
public UI_t(){
super("个人账目管理系统");
this.setBounds(300, 200, 800, 600);
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.setDividerLocation(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) {
new UI_t().setVisible(true);
}
/*
* 设置JPanel的界面
*/
public JPanel setInfo(){
JPanel jp = new JPanel();
jp.setLayout(null);
JLabel label1 = new JLabel("类型");
label1.setBounds(100, 50, 30, 30);
jp.add(label1);
typeCom.addItem("收入");
typeCom.addItem("֧支出");
typeCom.setBounds(150, 50, 60, 30);
jp.add(typeCom);
JLabel label2 = new JLabel("金额");
label2.setBounds(250, 50, 30, 30);
jp.add(label2);
moneyText.setBounds(300, 50, 60, 30);
jp.add(moneyText);
JLabel label3 = new JLabel("备注");
label3.setBounds(380, 50, 30, 30);
loteText.setBounds(430, 50, 60, 30);
jp.add(label3);
jp.add(loteText);
JButton addBut = new JButton("增加");
addBut.setBounds(520, 50, 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 money = moneyText.getText();
String remark = loteText.getText();
Tool tool = new Tool();
String time = tool.getTime();
int id = tool.getNewID();
String data = id + "," + type + "," + money + "," + time + "," + remark +"\n";
Operation oper = new Operation();
oper.add(data);
select();
}
});
JButton xgBut = new JButton("修改");
xgBut.setBounds(610, 50, 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(700, 50, 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 label4 = new JLabel("按类型查询");
label4.setBounds(100, 100, 70, 30);
jp.add(label4);
typeCom2.addItem("");
typeCom2.addItem("收入");
typeCom2.addItem("支出");
typeCom2.setBounds(200, 100, 60, 30);
jp.add(typeCom2);
JLabel label5 = new JLabel("按条件查询");
label5.setBounds(280, 100, 100, 30);
jp.add(label5);
tjText.setBounds(380,100,100,30);
jp.add(tjText);
JButton selectBut = new JButton("查询");
selectBut.setBounds(500, 100, 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("金额");
colName.add("日期");
colName.add("备注");
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 从这个项目中学到了很多，首先是关于分包的概念(虽然我还是不会分)，然后是每个功能都是一个类调用另一个基础的类，一层层的调用，写一个项目之前要构思好从文件或是数据库的底层开始一层层的向上写。我之前也写过一个ATM的，返回来看发现自己的代码功能要不是凌乱的在外边，要不就是挤在了监听器中，总之还有很多需要改进的地方。