s1(java)项目实战（固定资产管理）（set_Asset_employe_set ）

package set;

/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2007</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import tools.*;
import javax.swing.*;
import javax.swing.table.*;
import javax.swing.event.*;

public class Asset_employe_set extends JPanel {
private JButton btn_add = new JButton("增加");
private JButton btn_del = new JButton("删除");
private JButton btn_modi = new JButton(" 修改");
private JButton btn_return = new JButton();
private JScrollPane jScrollPane1 = new JScrollPane();
private JTable table;
private Mytable model;
private DBConnection dcon = null;
private HashMap empMap = new HashMap();
private HashMap empMaptemp = new HashMap();
private String tempID = "";
private TableModel tmb;
private String user;
public Asset_employe_set(String _user) {
try {
this.user = _user;
jbInit();
} catch (Exception ex) {
ex.printStackTrace();
}
}

/**
* jbInit
*/
private void jbInit() {
this.setSize(new Dimension(500, 400));
this.setLayout(null);
btn_add.setBounds(new Rectangle(57, 23, 75, 35));
btn_del.setBounds(new Rectangle(260, 23, 75, 35));
btn_modi.setBounds(new Rectangle(158, 23, 75, 35));
btn_return.setBounds(new Rectangle(364, 23, 75, 35));
btn_return.setText("返回");
model = new Mytable();
model.setTitle(getTitle());
model.setContent(getContents());
table = new JTable(model);
table.setFont(new Font("宋体", 1, 17));
jScrollPane1.setBounds(new Rectangle(47, 81, 395, 228));
table.setRowSelectionAllowed(false);
this.add(jScrollPane1);
this.add(btn_add);
this.add(btn_return);
this.add(btn_modi);
this.add(btn_del);
tmb = table.getModel();
initempMaptemp();
//talbe changed
tmb.addTableModelListener(new TableModelListener() {
public void tableChanged(TableModelEvent e) {
String table_id = table.getValueAt(table.getSelectedRow(), 0).
toString().trim();
String table_name = table.getValueAt(table.getSelectedRow(), 1).
toString().trim();
String table_duty = table.getValueAt(table.getSelectedRow(), 2).
toString().trim();
String table_mem = table.getValueAt(table.getSelectedRow(), 3).
toString().trim();
Employee temp = getEmployeeMessage(table_id);
String temp_name = temp.getName();
String temp_dutye = temp.getDuty();
String temp_mem = temp.getMem();
if (table_name.length() == 0) {
table_name = "";
}
if (table_duty.length() == 0) {
table_duty = "";
}
if (temp_mem.length() == 0) {
temp_mem = "";
}
Employee eee = new Employee(table_name, table_duty, table_mem);
if (!temp_name.equals(table_name) ||
!temp_dutye.equals(table_duty) ||
!temp_mem.equals(table_mem)) {
if (empMap.containsKey(table_id)) {
Set set = empMap.entrySet();
Iterator it = set.iterator();
while (it.hasNext()) {
Map.Entry me = (Map.Entry) it.next();
if (me.getKey().toString().trim().equals(table_id)) {
me.setValue(eee);
break;
}
}
} else {
empMap.put(table_id, eee);
}
modiEmployyeTempMap(table_id, eee);
}
}
});
//update temp
//行变动id的变动
table.addMouseListener(new MouseListener() {
public void mouseClicked(MouseEvent e) {
if (table.getSelectedRow() != -1 &&
table.getSelectedColumn() != -1) {
tempID = table.getValueAt(table.getSelectedRow(),
0).
toString().trim();
} else {
tempID = "";
}
}

public void mousePressed(MouseEvent e) {
}

public void mouseReleased(MouseEvent e) {
}

public void mouseEntered(MouseEvent e) {
}

public void mouseExited(MouseEvent e) {
}
});
jScrollPane1.getViewport().add(table);
btn_return.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
closeEmployee();
}
});

btn_add.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addEmployee();
initempMaptemp();
}
});
btn_del.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
deleteEmp();
}
});
btn_modi.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
modiEmployee();
}
});
}

//modi
private void modiEmployee() {
if (empMap.size() != 0) {
dcon = new DBConnection();
Set set = empMap.entrySet();
Iterator it = set.iterator();
while (it.hasNext()) {
Map.Entry me = (Map.Entry) it.next();
String id = me.getKey().toString().trim();
Employee epe = (Employee) me.getValue();
String sql = "update Employee set employee_name='";
sql += epe.getName().trim() + "',employee_post='";
sql += epe.getDuty() + "',remark='" + epe.getMem() +
"' where employee_id='";
sql += id + "'";
dcon.update(1, sql);
}
JOptionPane.showMessageDialog(this, "你修改了" + empMap.size() + "条记录");
empMap.clear();
empMaptemp.clear();
initempMaptemp();
model.setContent(getContents());
table.updateUI();
this.updateUI();
}
}

//updata temp
private void modiEmployyeTempMap(String id, Employee emp) {
Set set = empMaptemp.entrySet();
Iterator it = set.iterator();
while (it.hasNext()) {
Map.Entry me = (Map.Entry) it.next();
if (me.getKey().toString().trim().equals(id)) {
me.setValue(emp);
break;
}
}
}

//return temp
private Employee getEmployeeMessage(String id) {
return (Employee) empMaptemp.get(id);
}

//initempMaptemp();
private void initempMaptemp() {
dcon = new DBConnection();
String sql = "select employee_id ,employee_name, employee_post ,remark from Employee order by employee_id asc";
Vector v = dcon.select(sql);
int count = v.size();
for (int i = 0; i < count; i++) {
String id = ((Vector) v.get(i)).get(0).toString();
String s1 = ((Vector) v.get(i)).get(1).toString();
String s2 = ((Vector) v.get(i)).get(2).toString();
String s3 = ((Vector) v.get(i)).get(3).toString();
empMaptemp.put(id, new Employee(s1, s2, s3));
}
}

//del
private void deleteEmp() {
if (tempID.trim().length() != 0) {
dcon = new DBConnection();
String sql = "Select * from Action where asset_use='" + tempID +
"'";
if (dcon.isNull(sql)) {
JOptionPane.showMessageDialog(this, "该人的帐上没有为空");
} else {
sql = "delete from Employee where employee_id='" +
tempID.trim() + "'";
JOptionPane.showMessageDialog(this, dcon.update(2, sql));
model.setContent(getContents());
table.updateUI();
this.updateUI();
}
} else {
JOptionPane.showMessageDialog(this, "没有选择要操作的数据");
}
}

private void addEmployee() {
employeeAdd ela = new employeeAdd();
Dimension frmsize = getSize();
Point loc = getLocation();
ela.setLocation((frmsize.width - ela.WIDTH) / 2 + loc.x,
(frmsize.height - ela.HEIGHT) / 2 + loc.y);
ela.setSize(250, 250);
ela.setModal(true);
ela.setVisible(true);
model.setContent(getContents());
table.updateUI();
this.updateUI();

}

//获取表格的列表
private String[] getTitle() {
dcon = new DBConnection();
String sql = "select employee_id as 编号,employee_name as 姓名, employee_post as 职务,remark as 备注 from Employee order by employee_id asc";
return dcon.getColumnname(sql);
}

//获取表格的内容
private Vector getContents() {
dcon = new DBConnection();
String sql = "select employee_id as 编号,employee_name as 姓名, employee_post as 职务,remark as 备注 from Employee order by employee_id asc";
return dcon.select(sql);
}

//close
private void closeEmployee() {
this.removeAll();
Asset_OP asp = new Asset_OP(user);
this.add(asp);
this.updateUI();

}
}