Java实现超市管理系统(含数据库)
作者:AiY.. 来源:https://blog.csdn.net/qq_44859533
序言: 学Java已经有几个月了,上一次总结是针对GUI界面写的简易计算器,实现加减乘除功能以及计算器标准型和科学型之间的转换,有兴趣可以看看 Java混合计算器以及界面切换 . 这次写的超市管理系统,实现的功能有账户的注册、登录,超市商品类别的添加、修改和删除以及商品的添加、修改和删除的功能。用户注册之后把注册信息导入数据库;用户登录时候查询用户表,方可登录进去;商品类别和商品的增加也如注册信息一样,把信息导入商品类别表和商品表。由于快期末考试了,超市管理系统的一些功能还没有完善,后续还会更新顾客登录超市系统后,只能拥有查询商品的权限,并且还可以实现购买商品的功能,哈~哈 ~…
1、首先是建立数据库表:
2、实现主页面:
3、实现用户注册:
核心代码:
public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new Register().setVisible(true);
}
});
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
String name=this.jTextField1.getText();
String age=this.jTextField3.getText();
String QQ=this.jTextField4.getText();
String userName=this.jTextField5.getText();
String password1=this.jPasswordField1.getText();
String password2=this.jPasswordField2.getText();
if(StringUtil.isEmpty(name)){
JOptionPane.showMessageDialog(null,"姓名不能为空");
return;
}
if(StringUtil.isEmpty(age)){
JOptionPane.showMessageDialog(null,"年龄不能为空");
return;
}
if(StringUtil.isEmpty(QQ)){
JOptionPane.showMessageDialog(null,"QQ不能为空");
return;
}
if(StringUtil.isEmpty(userName)){
JOptionPane.showMessageDialog(null,"注册账号不能为空");
return;
}
if(StringUtil.isEmpty(password1)){
JOptionPane.showMessageDialog(null,"注册密码不能为空");
return;
}
if(StringUtil.isEmpty(password2)){
JOptionPane.showMessageDialog(null,"确认密码不能为空");
return;
}
if(!password1.equals(password2)){
JOptionPane.showMessageDialog(null,"两个密码填写不一致");
return;
}
User user=new User(userName,password1);
Connection con=null;
try{
con=dbUtil.getCon();
int n=userDao.add(con,user);
if(n==1){
JOptionPane.showMessageDialog(null,"用户注册成功!");
}else{
JOptionPane.showMessageDialog(null,"注册失败!!");
}
}catch (Exception e){
e.printStackTrace();
JOptionPane.showMessageDialog(null,"注册失败!!");
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//上一步
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
dispose();
new HomePage().setVisible(true);
}
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
注册成功之后可以返回上一步,重新登录
4、实现用户登录:
核心代码:
//重置
private void resetValueActionPerformed(ActionEvent evt) {
this.userNameTxt.setText("");
this.passwordTxt.setText("");
}
//登录事件处理
private void loginActionPerformed(ActionEvent evt) {
String userName=this.userNameTxt.getText();
String password=new String(this.passwordTxt.getPassword());
if(StringUtil.isEmpty(userName)){
JOptionPane.showMessageDialog(null,"用户名不能为空!");
return;
}
if(StringUtil.isEmpty(password)){
JOptionPane.showMessageDialog(null,"密码不能为空");
return;
}
User usr=new User(userName,password);
Connection con=null;
try{
con=dbUtil.getCon();
User currentUser=userDao.login(con,usr);
if(currentUser!=null){
dispose();
new MainFrm().setVisible(true);
}else{
JOptionPane.showMessageDialog(null,"登录失败,用户名密码错误!");
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
12345678910111213141516171819202122232425262728293031323334353637383940
接下来是商品类别和商品的实现,主要是在JFrame窗口中加入Inter窗口
5、主菜单之关于:
核心代码:
6、主菜单之商品类别管理:
核心代码:
private void jButton1ActionPerformed(ActionEvent evt) {
String goodsTypeName=this.goodsTypeNameTxt.getText();
String goodsTypeDesc=this.goodsTypeDescTxt.getText();
if(StringUtil.isEmpty(goodsTypeName)){
JOptionPane.showMessageDialog(null,"商品类别不能为空");
return;
}
GoodsType goodsType=new GoodsType(goodsTypeName,goodsTypeDesc);
Connection con=null;
try{
con=dbUtil.getCon();
int n=goodsTypeDao.add(con,goodsType);
if(n==1){
JOptionPane.showMessageDialog(null,"商品类别添加成功!");
jButton2ActionPerformed(evt);
}else{
JOptionPane.showMessageDialog(null,"添加失败!!");
}
}catch (Exception e){
e.printStackTrace();
JOptionPane.showMessageDialog(null,"添加失败!!");
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//重置
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
this.goodsTypeNameTxt.setText("");
this.goodsTypeDescTxt.setText("");
}
123456789101112131415161718192021222324252627282930313233343536
//表格行点击事件
private void jTable1MousePressed(java.awt.event.MouseEvent evt) {
int row=jTable1.getSelectedRow();//获取行数
idTxt.setText((String)jTable1.getValueAt(row,0));
goodsTypeNameTxt.setText((String)jTable1.getValueAt(row,1));
goodsTypeDescTxt.setText((String)jTable1.getValueAt(row,2));
}
//鼠标单击后,删除
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
String id=idTxt.getText();
if(StringUtil.isEmpty(id)){
JOptionPane.showMessageDialog(null,"请选择要删除的记录");
return;
}
int n=JOptionPane.showConfirmDialog(null,"Are you 确定delete this记录?");
if(n==0){
Connection con=null;
try{
con=dbUtil.getCon();
int deleteNum=goodsTypeDao.delect(con,id);
//System.out.println(deleteNum);
if(deleteNum==1){
JOptionPane.showMessageDialog(null,"删除成功");
this.resetValue();
this.fillTable(new GoodsType());
}else{
JOptionPane.showMessageDialog(null,"删除失败");
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
}
//鼠标单击后,修改
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String id=idTxt.getText();
String goodsTypeName=goodsTypeNameTxt.getText();
String goodsTypeDesc=goodsTypeDescTxt.getText();
if(StringUtil.isEmpty(id)){
JOptionPane.showMessageDialog(null,"请选择要修改的记录");
return;
}
GoodsType goodsType=new GoodsType(Integer.parseInt(id),goodsTypeName,goodsTypeDesc);
Connection con=null;
try{
con=dbUtil.getCon();
int modifyNum=goodsTypeDao.update(con,goodsType);
if(modifyNum==1){
JOptionPane.showMessageDialog(null,"修改成功");
this.resetValue();
this.fillTable(new GoodsType());
}else{
JOptionPane.showMessageDialog(null,"修改失败");
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//查询商品类型
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
String t_goodsTypeName=this.jTextField2.getText();
GoodsType goodsType=new GoodsType();
goodsType.setGoodsTypeName(t_goodsTypeName);
this.fillTable(goodsType);
}
//插入商品类型
private void fillTable(GoodsType goodsType){
DefaultTableModel dtm=(DefaultTableModel)jTable1.getModel();
dtm.setRowCount(0);
Connection con=null;
try{
con=dbUtil.getCon();
ResultSet rs=goodsTypeDao.list(con,goodsType);
while(rs.next()){
Vector v=new Vector();
v.add(rs.getString("id"));
v.add(rs.getString("goodsTypeName"));
v.add(rs.getString("goodsTypeDesc"));
dtm.addRow(v);
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//修改后重置
private void resetValue(){
this.idTxt.setText("");
this.goodsTypeNameTxt.setText("");
this.goodsTypeDescTxt.setText("");
}
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112
7、主菜单之商品管理:
核心代码:
//查询
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
String t_goodsName=this.s_goodsNameTxt.getText();
Goods goods=new Goods();
goods.setGoodsName(t_goodsName);
this.fillTable(goods);
}
//下拉框
private void fillGoodsType(String type){
Connection con=null;
GoodsType goodsType=null;
try{
con=dbUtil.getCon();
ResultSet rs=goodsTypeDao.list(con,new GoodsType());
if("search".equals(type)){
goodsType=new GoodsType();
goodsType.setGoodsTypeName("请选择");
goodsType.setId(-1);
this.s_goodsJcb.addItem(goodsType);
}
while(rs.next()){
goodsType=new GoodsType();
goodsType.setGoodsTypeName(rs.getString("goodsTypeName"));
goodsType.setId(rs.getInt("id"));
if("search".equals(type)){
this.s_goodsJcb.addItem(goodsType);
}else if("modify".equals(type)){
}
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//表
private void fillTable(Goods goods){
DefaultTableModel dtm=(DefaultTableModel) jTable1.getModel();
dtm.setRowCount(0);
Connection con=null;
try{
con=dbUtil.getCon();
ResultSet rs=goodsDao.list(con,goods);
while(rs.next()){
Vector v=new Vector();
v.add(rs.getInt("id"));
v.add(rs.getString("goodsName"));
v.add(rs.getFloat("price"));
v.add(rs.getString("goodsDesc"));
dtm.addRow(v);
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//鼠标点击表格事件
private void jTable1MousePressed(java.awt.event.MouseEvent evt) {
int row=jTable1.getSelectedRow();
this.idTxt.setText((Integer)jTable1.getValueAt(row,0)+"");
this.goodsNameTxt.setText((String)jTable1.getValueAt(row,1));
this.priceTxt.setText((Float)jTable1.getValueAt(row,2)+"");
this.goodsDescTxt.setText((String)jTable1.getValueAt(row,3));
}
//鼠标单击后,修改
private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
String id=this.idTxt.getText();
if(StringUtil.isEmpty(id)){
JOptionPane.showMessageDialog(null,"请选择要修改的记录");
return;
}
String goodsName=this.goodsNameTxt.getText();
String price=this.priceTxt.getText();
String goodsDesc=this.goodsDescTxt.getText();
if(StringUtil.isEmpty(goodsName)){
JOptionPane.showMessageDialog(null,"商品名称不能为空");
return;
}
if(StringUtil.isEmpty(price)){
JOptionPane.showMessageDialog(null,"商品价钱不能为空");
return;
}
if(StringUtil.isEmpty(goodsDesc)){
JOptionPane.showMessageDialog(null,"商品描述不能为空");
return;
}
Goods goods=new Goods(Integer.parseInt(id),goodsName, Float.parseFloat(price),goodsDesc);
Connection con=null;
try{
con=dbUtil.getCon();
int modifyNum=goodsDao.update(con,goods);
if(modifyNum==1){
JOptionPane.showMessageDialog(null,"修改成功");
this.resetValue();
this.fillTable(new Goods());
}else{
JOptionPane.showMessageDialog(null,"修改失败");
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
//鼠标单击后删除
private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {
String id=idTxt.getText();
if(StringUtil.isEmpty(id)){
JOptionPane.showMessageDialog(null,"请选择要删除的记录");
return;
}
int n=JOptionPane.showConfirmDialog(null,"Are you 确定delete this记录?");
if(n==0){
Connection con=null;
try{
con=dbUtil.getCon();
int deleteNum=goodsDao.delete(con,id);
if(deleteNum==1){
JOptionPane.showMessageDialog(null,"删除成功");
this.resetValue();
this.fillTable(new Goods());
}else{
JOptionPane.showMessageDialog(null,"删除失败");
}
}catch (Exception e){
e.printStackTrace();
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
}
//修改后重置
private void resetValue(){
this.idTxt.setText("");
this.goodsNameTxt.setText("");
this.goodsDescTxt.setText("");
}
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160
private void jButton2ActionPerformed(ActionEvent evt) {
this.resetValue();
}
//商品添加
private void jButton1ActionPerformed(ActionEvent evt){
String goodsName=this.goodsNameTxt.getText();
String price=this.priceTxt.getText();
String goodsDesc=this.goodsDecTxt.getText();
if(StringUtil.isEmpty(goodsName)){
JOptionPane.showMessageDialog(null,"商品类别名称不能为空");
return;
}
if(StringUtil.isEmpty(price)){
JOptionPane.showMessageDialog(null,"商品价格不能为空");
return;
}
GoodsType goodsType=(GoodsType)goodsTypeJcb.getSelectedItem();
int goodsTypeId=goodsType.getId();
Goods goods=new Goods(goodsName,Float.parseFloat(price),goodsDesc);
Connection con=null;
try{
con=dbUtil.getCon();
int addNum=goodsDao.add(con,goods);
if(addNum==1){
JOptionPane.showMessageDialog(null,"商品添加成功");
resetValue();
}else{
JOptionPane.showMessageDialog(null,"商品添加失败");
}
}catch (Exception e){
e.printStackTrace();
JOptionPane.showMessageDialog(null,"商品添加失败");
}finally {
try{
dbUtil.closeCon(con);
}catch (Exception e){
e.printStackTrace();
}
}
}
/**
* 重置表单
*/
private void resetValue(){
this.goodsNameTxt.setText("");
this.priceTxt.setText("");
this.goodsDecTxt.setText("");
if(this.goodsTypeJcb.getItemCount()>0){
this.goodsTypeJcb.setSelectedIndex(0);
}
}
//初始化商品类别下拉框
private void fillGoodsType(){
Connection con=null;
GoodsType goodsType=null;
try{
con=dbUtil.getCon();
ResultSet rs=goodsTypeDao.list(con,new GoodsType());
while(rs.next()){
goodsType=new GoodsType();
goodsType.setId(rs.getInt("id"));
goodsType.setGoodsTypeName(rs.getString("goodsTypeName"));
this.goodsTypeJcb.addItem(goodsType);
}
}catch (Exception e){
e.printStackTrace();
}finally {
}
}
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273
8、退出:
评论