商品订购及货物采购信息系统（代码分析）

 商品订购及货物采购信息系统代码

登录主界面及客服主界面





登录界面及登录按钮监视器代码

package hxy;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingConstants;

public class LogIn {
private JFrame frame;
private JTextField textField;
private JPasswordField passwordField;
ConnectDatabase conn=null;
Statement state=null;
ResultSet re=null;
public LogIn() {
initialize();
}
private void initialize() {
frame = new JFrame();
frame.setVisible(true);
frame.getContentPane().setLayout(null);
frame.setBounds(100, 100, 529, 347);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

JLabel lblHang = new JLabel("Hang&650");
lblHang.setHorizontalAlignment(SwingConstants.CENTER);
lblHang.setFont(new Font("宋体", Font.PLAIN, 18));
lblHang.setBounds(223, 30, 106, 38);
frame.getContentPane().add(lblHang);

JLabel lblUsername = new JLabel("UserName");
lblUsername.setHorizontalAlignment(SwingConstants.CENTER);
lblUsername.setFont(new Font("宋体", Font.PLAIN, 16));
lblUsername.setBounds(72, 75, 86, 27);
frame.getContentPane().add(lblUsername);

textField = new JTextField();
textField.setBounds(193, 76, 183, 27);
frame.getContentPane().add(textField);
textField.setColumns(10);

JLabel lblPassword = new JLabel("PassWord");
lblPassword.setHorizontalAlignment(SwingConstants.CENTER);
lblPassword.setFont(new Font("宋体", Font.PLAIN, 16));
lblPassword.setBounds(73, 130, 85, 27);
frame.getContentPane().add(lblPassword);

JButton btnLogin = new JButton("Login");   //////////////////登录按钮监视器

passwordField = new JPasswordField();
passwordField.setFont(new Font("宋体", Font.PLAIN, 16));
passwordField.setEchoChar('*');
passwordField.setBounds(193, 130, 183, 27);
frame.getContentPane().add(passwordField);

passwordField.addKeyListener(new KeyListener() {
@SuppressWarnings("deprecation")
@Override
public void keyPressed(KeyEvent e) {
if(e.getKeyCode()==(char)10){
if((!"".equals(textField.getText().trim()))&&(!"".equals(passwordField.getText().trim()))){/////判断输入的值是否为空
conn=new ConnectDatabase();  /////////将连接数据库对象实例化准备用户名密码验证
String cmd=null;
cmd="select password,role from staff_Infor where username='"+textField.getText().trim()+"';";
try {
re=conn.state.executeQuery(cmd);
if(re.next()){
if(passwordField.getText().equals(re.getString(1).trim())){ ///////////密码验证成功
System.out.println("Log in succeed!!!");
frame.dispose(); /////////登录界面退出
if(re.getString(2).trim().equals("Administrator".trim())){    ////////判断权限进入不同的界面，管理员
new OwnerForm();
}
else if(re.getString(2).trim().equals("Buyer".trim())){//////////采购员
new BuyerForm();
}
else if(re.getString(2).trim().equals("Service".trim())){                  /////////////客服
new ServiceForm(textField.getText().trim());
}
else{
JOptionPane.showMessageDialog(frame, "用户权限不存在！！！\n请重新登录");
}
}
else{                                  ///////////////////密码验证失败
JOptionPane.showMessageDialog(frame, "密码错误！！！\n请重新输入");
}
}
else{
JOptionPane.showMessageDialog(frame, "用户名不存在！！！\n请重新输入");
}
conn.conn.close();
} catch (SQLException e1) {
e1.printStackTrace();
JOptionPane.showMessageDialog(frame, e1);
}
}

}
}
});

btnLogin.addActionListener(new ActionListener() {
@SuppressWarnings("deprecation")
public void actionPerformed(ActionEvent arg0) {
if((!"".equals(textField.getText().trim()))&&(!"".equals(passwordField.getText().trim()))){/////判断输入的值是否为空
try {
conn=new ConnectDatabase();  /////////将连接数据库对象实例化准备用户名密码验证
String cmd=null;
cmd="select password,role from staff_Infor where username='"+textField.getText().trim()+"';";
re=conn.state.executeQuery(cmd);
if(re.next()){
if(passwordField.getText().equals(re.getString(1).trim())){ ///////////密码验证成功
System.out.println("Log in succeed!!!");
frame.dispose(); /////////登录界面退出
if(re.getString(2).trim().equals("Administrator".trim())){    ////////判断权限进入不同的界面，管理员
new OwnerForm();
}
else if(re.getString(2).trim().equals("Buyer".trim())){//////////采购员
new BuyerForm();
}
else if(re.getString(2).trim().equals("Service".trim())){                  /////////////客服
new ServiceForm(textField.getText().trim());
}
else{
JOptionPane.showMessageDialog(frame, "用户权限不存在！！！\n请重新登录");
}
}
else{                                  ///////////////////密码验证失败
JOptionPane.showMessageDialog(frame, "密码错误！！！\n请重新输入");
}
}
else{
JOptionPane.showMessageDialog(frame, "用户名不存在！！！\n请重新输入");
}
conn.conn.close();
} catch (Exception e) {
JOptionPane.showMessageDialog(frame, "Database connection Error!!!"+e);
e.printStackTrace();
}
}else{
JOptionPane.showMessageDialog(frame, "请输入用户名和密码!!!");
}
}
});
btnLogin.setBounds(193, 189, 68, 23);
frame.getContentPane().add(btnLogin);

JButton btnRegister = new JButton("Register");
btnRegister.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
JOptionPane.showMessageDialog(btnRegister, "请以管理员身份进入添加信息！！！");
}
});
btnRegister.setBounds(279, 189, 92, 23);
frame.getContentPane().add(btnRegister);
}
}

客服主界面代码

package hxy;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Date;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
import javax.swing.border.BevelBorder;
import javax.swing.border.SoftBevelBorder;
import javax.swing.border.TitledBorder;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

public class ServiceForm {
private JFrame frmHuang;
private JTable goodsInfoTable;
private JLabel lblInformationOfGoods;
private JLabel lblNewLabel;
private JPanel panel;
private JPanel enInfoPanel;
private JLabel enName;
private JTextField tfEnName;
private JLabel enLinkMan;
private JTextField tfShortName;
private JLabel enShortName;
private JLabel enAdress;
private JTextField tfAdress;
private JLabel enPostCode;
private JTextField tfPostCode;
private JButton addGoodsButton;
private JMenuBar menuBar;
private JMenu menu;
private JMenuItem maintainMenuItem;
private JMenu menu_1;
private JMenuItem searchMenuItem;
private JTextField tfPhone;
private JTextField tfEmail;
private JTextField tfLinkMan;
private int recoder=0;
private int counter=0;                        ////////////商品记录计数器

private JLabel label;
private JTextField tfOrderDate;
private JLabel label_1;
private JTextField tfSendDate;
private JLabel label_2;
private JTextField tfSendAddress;
private JLabel label_3;
private JTextField tfSpecial;
private JLabel label_4;
private JLabel label_5;
private JLabel label_6;
private JMenu menu_2;
private JMenuItem menuItem;
public ServiceForm(String uername) {
initialize();
}
private void initialize() {
frmHuang = new JFrame();  ////////////订货主窗口的设置
frmHuang.setVisible(true);
frmHuang.setTitle("Huang&650");
frmHuang.setBounds(0, 0, 985, 674);
frmHuang.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmHuang.getContentPane().setLayout(null);

//////////商品信息的显示
////////////表头信息的设置
Object head[]={"ID","商品名称", "包装方式", "计量单位", "商品产地", "保质期", "特征描述", "售价"};
Object goods[][]=new Object[35][8];
ConnectDatabase conn=new ConnectDatabase();
String cmd="select id,name,packstyle,unite,productarea,keeptime,description,price from Infor_Goods;";
try {
ResultSet re=conn.state.executeQuery(cmd);
if(re.isBeforeFirst()){
while(re.next()){
for(int i=0;i<7;i++){
goods[counter][i]=re.getString(i+1);
}
goods[counter++][7]=re.getFloat(8);
}
}
re.close();
conn.conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
goodsInfoTable = new JTable(goods,head);
JScrollPane jsp=new JScrollPane(goodsInfoTable);
frmHuang.getContentPane().add(jsp);
jsp.setBounds(10, 54, 531, 545);

lblInformationOfGoods = new JLabel("Information Of Goods");   /////////////商品信息标签
lblInformationOfGoods.setFont(new Font("宋体", Font.PLAIN, 16));
lblInformationOfGoods.setHorizontalAlignment(SwingConstants.CENTER);
frmHuang.getContentPane().add(lblInformationOfGoods);
lblInformationOfGoods.setBounds(125, 25, 233, 30);

lblNewLabel = new JLabel("\u5BA2\u6237\u9009\u8D2D");
lblNewLabel.setHorizontalAlignment(SwingConstants.CENTER);
lblNewLabel.setFont(new Font("宋体", Font.PLAIN, 16));
lblNewLabel.setBounds(694, 15, 115, 15);
frmHuang.getContentPane().add(lblNewLabel);

panel = new JPanel();
panel.setBorder(new SoftBevelBorder(BevelBorder.LOWERED, null, null, null, null));
frmHuang.getContentPane().add(panel);
panel.setBounds(562, 40, 382, 585);
panel.setLayout(null);

enInfoPanel = new JPanel();
panel.add(enInfoPanel);
enInfoPanel.setBounds(10, 10, 362, 208);
enInfoPanel.setLayout(null);

enName = new JLabel("\u4F01\u4E1A\u540D\u79F0");
enName.setBounds(10, 10, 54, 15);
enInfoPanel.add(enName);

tfLinkMan = new JTextField();
tfLinkMan.setBounds(74, 72, 96, 21);
enInfoPanel.add(tfLinkMan);
tfLinkMan.setColumns(10);

tfEnName = new JTextField();
tfEnName.addFocusListener(new FocusAdapter() {
@SuppressWarnings("deprecation")
@Override
public void focusLost(FocusEvent arg0) {       ////////////////////企业名称文本框失去焦点监视器，即查询企业信息和联系人信息填入相应的控件中
String enName=tfEnName.getText().trim();
if(!"".equals(enName)){ ///////////////////查询企业信息
ConnectDatabase conn=new ConnectDatabase();     /////////////////创建数据库链接对象准备连接数据库
String cmd="select Enterprise.id,Enterprise.company_name,Enterprise.short_name,Enterprise.address,Enterprise.postcode,Linkman.name,Linkman.telephone,Linkman.phone,Linkman.email,Enterprise.address from Linkman,Enterprise where Enterprise.company_name=Linkman.company_name and Enterprise.company_name='"+enName+"'";
try {
ResultSet re=conn.state.executeQuery(cmd);
if(re.next()){
re.beforeFirst();
int counter=0;
Object []linkman=null;
String [][]linkManInfo=null;
while(re.next()){        ///////////////处理结果集判断企业联系人的个数
counter++;
}
re.beforeFirst();
linkman=new Object[counter];
linkManInfo=new String[counter][3];
counter=0;
while(re.next()){        //////////////将联系人存到数组中
linkman[counter]=re.getString(6);
linkManInfo[counter][0]=re.getString(6);   //////////联系人姓名
linkManInfo[counter][1]=re.getString(8);   //////////电话
linkManInfo[counter++][2]=re.getString(9);  //////////电子信箱
}

for(int k=0;k<linkManInfo.length;k++){
System.out.println(linkManInfo[k][0]+"   "+linkManInfo[k][1]+"   "+linkManInfo[k][2]);
}

re.first();     //////////////添加企业信息到相应的控件
{
tfShortName.setText(re.getString(3));
tfAdress.setText(re.getString(4));
tfPostCode.setText(re.getString(5));  /////////////生成弹出式选择对话框中的选择的内容
Object selectValve=JOptionPane.showInputDialog(null, "ChooseLinkMan","LinkMan",JOptionPane.INFORMATION_MESSAGE,null,linkman,linkman[0]);

for(int i=0;i<linkManInfo.length;i++){
if(selectValve.toString().equals(linkManInfo[i][0].trim())){   /////////////找到选中的联系人并将信息填入到相应的控件中
tfLinkMan.setText(selectValve.toString());
tfPhone.setText(linkManInfo[i][1]);
tfEmail.setText(linkManInfo[i][2]);
break;
}
}
}
Date today=new Date();
tfOrderDate.setText((today.getYear()+1900)+"-"+(today.getMonth()+1)+"-"+today.getDate());
tfSendDate.setText((today.getYear()+1900)+"-"+(today.getMonth()+1)+"-"+(today.getDate()+1));
tfSendAddress.setText(re.getString(10));
re.close();
conn.conn.close();
}
else{
JOptionPane.showMessageDialog(frmHuang, "该公司不存在！！！请检查名称\n如果新伙伴请先注册！！！");
}

} catch (SQLException e) {
e.printStackTrace();
}
}
}
});
tfEnName.setBounds(74, 7, 96, 21);
enInfoPanel.add(tfEnName);
tfEnName.setColumns(10);

enLinkMan = new JLabel("\u4F01\u4E1A\u8054\u7CFB\u4EBA");
enLinkMan.setBounds(10, 75, 66, 15);
enInfoPanel.add(enLinkMan);

tfShortName = new JTextField();
tfShortName.setBounds(243, 7, 109, 21);
enInfoPanel.add(tfShortName);
tfShortName.setColumns(10);

enShortName = new JLabel("\u4F01\u4E1A\u7B80\u79F0");
enShortName.setBounds(180, 10, 54, 15);
enInfoPanel.add(enShortName);

enAdress = new JLabel("\u4F01\u4E1A\u5730\u5740");
enAdress.setBounds(10, 41, 54, 15);
enInfoPanel.add(enAdress);

tfAdress = new JTextField();
tfAdress.setBounds(74, 38, 96, 21);
enInfoPanel.add(tfAdress);
tfAdress.setColumns(10);

enPostCode = new JLabel("\u90AE\u7F16");
enPostCode.setBounds(190, 41, 54, 15);
enInfoPanel.add(enPostCode);

tfPostCode = new JTextField();
tfPostCode.setBounds(243, 38, 109, 21);
enInfoPanel.add(tfPostCode);
tfPostCode.setColumns(10);

JLabel laPhone = new JLabel("\u8054\u7CFB\u7535\u8BDD");
laPhone.setBounds(180, 72, 54, 15);
enInfoPanel.add(laPhone);

tfEmail = new JTextField();
tfEmail.setBounds(74, 103, 145, 21);
enInfoPanel.add(tfEmail);
tfEmail.setColumns(10);

JLabel laEmail = new JLabel("\u7535\u5B50\u4FE1\u7BB1");
laEmail.setBounds(10, 106, 54, 15);
enInfoPanel.add(laEmail);

tfPhone = new JTextField();
tfPhone.setBounds(243, 69, 109, 21);
enInfoPanel.add(tfPhone);
tfPhone.setColumns(10);

label = new JLabel("\u8BA2\u5355\u65E5\u671F");
label.setBounds(10, 134, 54, 15);
enInfoPanel.add(label);

tfOrderDate = new JTextField();
tfOrderDate.setBounds(74, 128, 96, 21);
enInfoPanel.add(tfOrderDate);
tfOrderDate.setColumns(10);

label_1 = new JLabel("\u9001\u8D27\u65E5\u671F");
label_1.setBounds(180, 134, 54, 15);
enInfoPanel.add(label_1);

tfSendDate = new JTextField();
tfSendDate.setBounds(243, 131, 109, 21);
enInfoPanel.add(tfSendDate);
tfSendDate.setColumns(10);

label_2 = new JLabel("\u9001\u8D27\u5730\u5740");
label_2.setBounds(10, 164, 54, 15);
enInfoPanel.add(label_2);

tfSendAddress = new JTextField();
tfSendAddress.setBounds(74, 159, 278, 21);
enInfoPanel.add(tfSendAddress);
tfSendAddress.setColumns(10);

label_3 = new JLabel("\u7279\u6B8A\u8BF4\u660E");
label_3.setBounds(10, 189, 54, 15);
enInfoPanel.add(label_3);

tfSpecial = new JTextField();
tfSpecial.setBounds(74, 186, 278, 21);
enInfoPanel.add(tfSpecial);
tfSpecial.setColumns(10);

label_4 = new JLabel("\u5E74");
label_4.setHorizontalAlignment(SwingConstants.CENTER);
label_4.setBounds(253, 109, 25, 15);
enInfoPanel.add(label_4);

label_5 = new JLabel("\u6708");
label_5.setHorizontalAlignment(SwingConstants.CENTER);
label_5.setBounds(276, 109, 25, 15);
enInfoPanel.add(label_5);

label_6 = new JLabel("\u65E5");
label_6.setHorizontalAlignment(SwingConstants.CENTER);
label_6.setBounds(298, 109, 25, 15);
enInfoPanel.add(label_6);

JPanel panel_2 = new JPanel();
panel_2.setBorder(new TitledBorder(null, "", TitledBorder.LEADING, TitledBorder.TOP, null, null));
panel.add(panel_2);
panel_2.setLayout(null);
panel_2.setBounds(10, 253, 362, 295);

Object []headGoods={"ID","商品名称","计量单位","单价","数量"};
Object [][]goodsData=new Object[20][5];
JTable goodsTable=new JTable(goodsData,headGoods);

JScrollPane scrollPane = new JScrollPane(goodsTable);
scrollPane.setBounds(0, 0, 362, 285);
panel_2.add(scrollPane);

JLabel enOrderForm = new JLabel("\u8BA2\u5355\u8BE6\u60C5");
enOrderForm.setHorizontalAlignment(SwingConstants.CENTER);
enOrderForm.setBounds(10, 228, 54, 15);
panel.add(enOrderForm);

addGoodsButton = new JButton("\u6DFB\u52A0\u5546\u54C1");
addGoodsButton.addActionListener(new ActionListener() {    ////////////////////订单商品添加按钮监视器
public void actionPerformed(ActionEvent arg0) {
if(goodsInfoTable.getSelectedRow()>=0&&goodsInfoTable.getSelectedRow()<counter){      /////////////选中的商品存在
if(recoder<=goodsTable.getRowCount()){
goodsTable.setValueAt(goodsInfoTable.getValueAt(goodsInfoTable.getSelectedRow(), 0), recoder, 0);   /////////////选中信息栏的商品添加到订单栏
goodsTable.setValueAt(goodsInfoTable.getValueAt(goodsInfoTable.getSelectedRow(), 1), recoder, 1);
goodsTable.setValueAt(goodsInfoTable.getValueAt(goodsInfoTable.getSelectedRow(), 3), recoder, 2);
goodsTable.setValueAt(goodsInfoTable.getValueAt(goodsInfoTable.getSelectedRow(), 7), recoder++, 3);
}
else{           /////////////当记录数大于表格的行数时
}
}
else{
JOptionPane.showMessageDialog(frmHuang, "请选择商品！！！");
}
}
});
addGoodsButton.setBounds(177, 228, 93, 23);
panel.add(addGoodsButton);

JButton submitButton = new JButton("\u63D0\u4EA4\u8BA2\u5355");
submitButton.addActionListener(new ActionListener() {                     ///////////提交订单按钮监视器
public void actionPerformed(ActionEvent arg0) {
if(recoder>0){
Date orderTime=new Date();
@SuppressWarnings("deprecation")
String orderID="650"+tfPhone.getText().trim()+orderTime.getYear()+(orderTime.getMonth()>10?orderTime.getMonth()+1:"0"+(orderTime.getMonth()+1))+(orderTime.getDate()>10?orderTime.getDate()+1:"0"+(orderTime.getDate()+1));  /////////生成订单号
try {
ConnectDatabase conn=new ConnectDatabase();
String validCmd="select bookMan from orderInfo where orderID='"+orderID+"'";
ResultSet re=conn.state.executeQuery(validCmd);       ////////////////////判断是否已经提交了一次订单
if(re.next()){
JOptionPane.showMessageDialog(frmHuang, "对不起，你今天已经提交了订单！！！\n订单号为："+orderID);
conn.conn.close();
re.close();
}
else{
String cmd="insert into orderInfo values('";        //////////添加订单信息表，订单号自动生成（设置为时间加订货人手机号）
cmd=cmd+orderID+"','"+tfOrderDate.getText().trim()+"','"+tfSendDate.getText().trim()+"','"+tfSendAddress.getText().trim()+"','"+tfSpecial.getText().trim()+"','"+tfLinkMan.getText().trim()+"')";
conn.state.executeUpdate(cmd);
System.out.println("Order has been created!!!");
//conn.state.close();
///////////////订单详情的生成
try{
//ConnectSQLServer conn=new ConnectSQLServer();
cmd="insert into orderGoodsInfo values('"+orderID+"','";
int count=0;
while(goodsTable.getValueAt(count, 0)!=null){     //////////判断表格中的行中有数据
cmd=cmd+goodsTable.getValueAt(count, 0)+"','"+goodsTable.getValueAt(count, 1)+"',"+Float.parseFloat(goodsTable.getValueAt(count,4).toString().trim())+","+Float.parseFloat(goodsTable.getValueAt(count, 3).toString().trim())+","+Float.parseFloat(goodsTable.getValueAt(count, 3).toString().trim())*Float.parseFloat(goodsTable.getValueAt(count, 4).toString().trim())+")";
conn.state.executeUpdate(cmd);
cmd="insert into orderGoodsInfo values('"+orderID+"','";
count++;
}
conn.state.close();
new JOptionPane();
JOptionPane.showMessageDialog(frmHuang, "订单提交成功！！！\n订单号为："+orderID);
}catch (SQLException e) {
e.printStackTrace();
}
}
} catch (SQLException e) {
e.printStackTrace();
}

}
else{
JOptionPane.showMessageDialog(frmHuang, "请选择商品后再提交订单！！！");
}
}
});
submitButton.setBounds(279, 552, 93, 23);
panel.add(submitButton);

JButton reduceGoodsButton = new JButton("\u5220\u9664\u5546\u54C1");
reduceGoodsButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {                  //////////////////选中商品删除按钮监视器
if(goodsTable.getSelectedRow()>=0&&goodsTable.getSelectedRow()<recoder){
if(!"".equals(goodsTable.getValueAt(goodsTable.getSelectedRow(), 0).toString().trim())){
if(goodsTable.getSelectedRow()==(recoder-1)){    ////////////判断删除的信息是否为最后一条
for(int i=0;i<goodsTable.getColumnCount();i++){
goodsTable.setValueAt("", goodsTable.getSelectedRow(), i);
}
recoder--;
}
else{         //////////////不是最后一条
for(int i=goodsTable.getSelectedRow();i<recoder-1;i++){        ///////////////数据向前移动一行
for(int j=0;j<goodsTable.getColumnCount();j++){
goodsTable.setValueAt(goodsTable.getValueAt(i+1, j), i, j);
}
}
for(int k=0;k<goodsTable.getColumnCount();k++){          /////////////最后一行置空
goodsTable.setValueAt("", recoder-1, k);
}
recoder--;
}
}
}
else{
JOptionPane.showMessageDialog(frmHuang, "请选择需要删除的商品！！！");
}
}
});
reduceGoodsButton.setBounds(280, 228, 93, 23);
panel.add(reduceGoodsButton);

menuBar = new JMenuBar();
menuBar.setBounds(0, 0, 115, 30);
frmHuang.getContentPane().add(menuBar);

menu = new JMenu("\u7EF4\u62A4");
menuBar.add(menu);

maintainMenuItem = new JMenuItem("\u7EF4\u62A4\u5546\u54C1"); ////////维护商品信息菜单被选中
maintainMenuItem.addMouseListener(new MouseAdapter() {
@Override
public void mousePressed(MouseEvent arg0) {
new MaintainForm();
}
});
menu.add(maintainMenuItem);

menu_1 = new JMenu("\u67E5\u8BE2");
menuBar.add(menu_1);

searchMenuItem = new JMenuItem("\u67E5\u8BE2\u5BA2\u6237\u4FE1\u606F");
searchMenuItem.addMouseListener(new MouseAdapter() {                          /////////////////查询客户信息菜单监视器
@Override
public void mousePressed(MouseEvent arg0) {                     ////////////////调用一个窗体显示客户订单信息（customer）
//System.out.println("hhhhhhhhhhhhhhhhhhhhhhhh");
new CustomerOrderForm();
}
});
menu_1.add(searchMenuItem);

menu_2 = new JMenu("\u5237\u65B0");
menuBar.add(menu_2);

menuItem = new JMenuItem("\u4FE1\u606F\u5237\u65B0");
menuItem.addMouseListener(new MouseAdapter() {                  //////////////////////页面刷新菜单栏，将表中的数据清空，重新读取数据库提取商品信息
@Override
public void mousePressed(MouseEvent arg0) {
System.out.println(counter);
int count=0;
System.out.println(goodsInfoTable.getValueAt(count, 0).toString().trim());
while(count<counter){/////////////////判断表中有数据,将数据清空
for(int i=0;i<goodsInfoTable.getColumnCount();i++){
goodsInfoTable.setValueAt("", count, i);          //////////////将表格中的单元格置空
}
count++;
}
String cmd="select id,name,packstyle,unite,productarea,keeptime,description,price from Infor_Goods;";
System.out.println(cmd);
ConnectDatabase conn=new ConnectDatabase();
try {
ResultSet re=conn.state.executeQuery(cmd);
counter=0;
while(re.next()){
for(int i=0;i<goodsInfoTable.getColumnCount();i++){
goodsInfoTable.setValueAt(re.getString(i+1), counter, i);
}
counter++;
}
re.close();
conn.state.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
});
menu_2.add(menuItem);
}
}

分析：

　　代码总体分为两部分，窗体代码和监视器代码。其中在编写窗体代码的时候基本的处理思路是大框体是一个JFrame，基本上每个类就是一个界面，然后将界面上所有的控件都定义为私有成员，然后在每个窗体类中都会有一个initialize方法，initialize方法中首先是对窗体的基本设置（包括窗体可见，窗体位置，大小，标题，默认关闭方式），initialize方法中的剩下部分就是对窗体中控件的初始化以及一些属性的设置和空间的监视器部分。initialize方法是在每个类的构造方法中调用的。

　　当页面在加载的时候就需要显示数据的时候，会在控件的初始化之前通过调用数据库查询出所需要的数据用于控件的初始化（例如：在加载客服主页面的时候就需要在商品信息框中罗列出所有的商品的基本信息，所有在初始化商品信息展示列表前会调用数据控查询商品基本信息表，然后将商品基本信息表的内容按相应的格式添加到窗体中的table控件中，代码如下）

//////////商品信息的显示
////////////表头信息的设置
Object head[]={"ID","商品名称", "包装方式", "计量单位", "商品产地", "保质期", "特征描述", "售价"};
Object goods[][]=new Object[35][8];
ConnectDatabase conn=new ConnectDatabase();
String cmd="select id,name,packstyle,unite,productarea,keeptime,description,price from Infor_Goods;";
try {
ResultSet re=conn.state.executeQuery(cmd);
if(re.isBeforeFirst()){
while(re.next()){
for(int i=0;i<7;i++){
goods[counter][i]=re.getString(i+1);
}
goods[counter++][7]=re.getFloat(8);
}
}
re.close();
conn.conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
goodsInfoTable = new JTable(goods,head);
JScrollPane jsp=new JScrollPane(goodsInfoTable);
frmHuang.getContentPane().add(jsp);
jsp.setBounds(10, 54, 531, 545);

在这个MIS中基本上所有的控件的监视器完成的操作是连接数据库，对数据表进行增删改查操作，所以监视器部分基本分为连接数据库前的基础判断（基本判断是否符合去查询数据库的需要），使用ConnectDatabase类（这个类是自己写的一个连接数据库的类，后期会有专门分析这个类的）连接数据库，向数据库发出query或者update命令，使用ResultSet接收数据库返回的数据进行后期的处理，显示到控件上，实例代码如下：

JButton submitButton = new JButton("\u63D0\u4EA4\u8BA2\u5355");
submitButton.addActionListener(new ActionListener() {                     ///////////提交订单按钮监视器
public void actionPerformed(ActionEvent arg0) {
if(recoder>0){
Date orderTime=new Date();
@SuppressWarnings("deprecation")
String orderID="650"+tfPhone.getText().trim()+orderTime.getYear()+(orderTime.getMonth()>10?orderTime.getMonth()+1:"0"+(orderTime.getMonth()+1))+(orderTime.getDate()>10?orderTime.getDate()+1:"0"+(orderTime.getDate()+1));  /////////生成订单号
try {
ConnectDatabase conn=new ConnectDatabase();
String validCmd="select bookMan from orderInfo where orderID='"+orderID+"'";
ResultSet re=conn.state.executeQuery(validCmd);       ////////////////////判断是否已经提交了一次订单
if(re.next()){
JOptionPane.showMessageDialog(frmHuang, "对不起，你今天已经提交了订单！！！\n订单号为："+orderID);
conn.conn.close();
re.close();
}
else{
String cmd="insert into orderInfo values('";        //////////添加订单信息表，订单号自动生成（设置为时间加订货人手机号）
cmd=cmd+orderID+"','"+tfOrderDate.getText().trim()+"','"+tfSendDate.getText().trim()+"','"+tfSendAddress.getText().trim()+"','"+tfSpecial.getText().trim()+"','"+tfLinkMan.getText().trim()+"')";
conn.state.executeUpdate(cmd);
System.out.println("Order has been created!!!");
//conn.state.close();

///////////////订单详情的生成
try{
//ConnectSQLServer conn=new ConnectSQLServer();
cmd="insert into orderGoodsInfo values('"+orderID+"','";
int count=0;
while(goodsTable.getValueAt(count, 0)!=null){     //////////判断表格中的行中有数据
cmd=cmd+goodsTable.getValueAt(count, 0)+"','"+goodsTable.getValueAt(count, 1)+"',"+Float.parseFloat(goodsTable.getValueAt(count,4).toString().trim())+","+Float.parseFloat(goodsTable.getValueAt(count, 3).toString().trim())+","+Float.parseFloat(goodsTable.getValueAt(count, 3).toString().trim())*Float.parseFloat(goodsTable.getValueAt(count, 4).toString().trim())+")";
conn.state.executeUpdate(cmd);
cmd="insert into orderGoodsInfo values('"+orderID+"','";
count++;
}
conn.state.close();
new JOptionPane();
JOptionPane.showMessageDialog(frmHuang, "订单提交成功！！！\n订单号为："+orderID);
}catch (SQLException e) {
e.printStackTrace();
}
}
} catch (SQLException e) {
e.printStackTrace();
}
}
else{
JOptionPane.showMessageDialog(frmHuang, "请选择商品后再提交订单！！！");
}
}
});

上述分析是所有代码的一个整体处理思路的分析，因为这是一个管理信息系统，所以基本上就是根据不同的需求对数据库进行增删改查操作，当然还有一些小细节会在其他专门的文章中进行分析介绍。这个系统的整体的代码处理的就介绍这些，其他页面的代码的处理思路和这个就是大同小异了，当然不同的会有一些特殊处理，这个就根据实际情况而变了。对这个系统的需求分析以及数据库的分析在上一篇博文中就分析了，整个项目的代码已经托管到GitHub中（https://github.com/huangxinyuan650/GoodsInformationMIS/tree/hxy），有兴趣的可以看看，欢迎大家批评指正。