Java实现超市管理系统(含数据库)

共 16179字,需浏览 33分钟

 ·

2021-01-23 14:13

来源:https://blog.csdn.net/qq_44859533



序言: 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。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。

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);    }

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(); } }
    }

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("");    }


//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("");    }

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("");    }


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 {
}    }

8、退出:

喜欢就三连


关注 Stephen,一起学习,一起成长。

浏览 34
点赞
评论
收藏
分享

手机扫一扫分享

分享
举报
评论
图片
表情
推荐
点赞
评论
收藏
分享

手机扫一扫分享

分享
举报