usermanagejpanel.java

连接测试系统

package com.cnu.cie.olts.client.admin;

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.util.EventObject;
import java.util.Vector;

import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.WindowConstants;
import javax.swing.JFrame;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumn;

import com.cnu.cie.olts.client.ItemInfo;
import com.cnu.cie.olts.client.teacher.TeacherFrame;

public class userManageJPanel extends javax.swing.JPanel {
	private JTable usersjTable;
	private JScrollPane itemtablejScrollPane;
	private JButton onsubmitjButton;
	UserInfo[] userinfo;
	
	String[] columnNames = {"Delete", "UserID", "Username", "Password", "Status"};
	Object[][] data;
	
	static DefaultTableModel model=null;

	/**
	* Auto-generated main method to display this 
	* JPanel inside a new JFrame.
	*/
/*	public static void main(String[] args) {
		JFrame frame = new JFrame();
		frame.getContentPane().add(new userManageJPanel());
		frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
		frame.pack();
		frame.setVisible(true);
	}
	*/
	public userManageJPanel(UserInfo[] userinfo) {
		super();
		this.userinfo=userinfo;
	//	data=new Object[userinfo.length][columnNames.length];
	//	for(int i=0;i<userinfo.length;i++)
	//		data[i]=new Object[]{new Boolean(false),new Integer(userinfo[i].getUserid()),
	//			userinfo[i].getUsername(),userinfo[i].getPassword(),userinfo[i].getStatus()};
		
		initGUI();
		
		for(int i=0;i<columnNames.length;i++)
			model.addColumn(columnNames[i]);
		for(int i=0;i<userinfo.length;i++)
			model.addRow(new Object[]{new Boolean(false),new Integer(userinfo[i].getUserid()),
					userinfo[i].getUsername(),userinfo[i].getPassword(),userinfo[i].getStatus()
			});
	    initializeStatus();
	}
	
	private void initGUI() {
		try {
			this.setPreferredSize(new java.awt.Dimension(612, 312));
			this.setLayout(null);
			{
				itemtablejScrollPane = new JScrollPane();
				this.add(itemtablejScrollPane);
				itemtablejScrollPane.setBounds(7, 12, 593, 250);
				{
					//TableModel itemsjTableModel = 
					//	new DefaultTableModel(
					//			new String[][] { { "One", "Two" }, { "Three", "Four" } },
					//			new String[] { "Column 1", "Column 2" });
					model=new DefaultTableModel(){
			//		model=new DefaultTableModel(data,columnNames){
						public boolean isCellEditable(int row,int col){
							Class cls = getColumnClass(col);
							String name = getColumnName(col);
							return (!name.equals("UserID"));
							}
			//			public void setValueAt(Object value, int row, int col) {
			//				System.out.println("("+row+","+col+")="+value);
			//				data[row][col] = value;
			//				dataVector.setElementAt(value,row*data[0].length+col);
			//				fireTableCellUpdated(row, col);
			//				}
						public Class getColumnClass(int col){
							Vector v=(Vector)dataVector.elementAt(0);
							return v.elementAt(col).getClass();
						}
						};
					usersjTable = new JTable(model);
					itemtablejScrollPane.setViewportView(usersjTable);
					usersjTable.setBounds(394, 86, 218, 149);
				}
			}
			{
				onsubmitjButton = new JButton();
				this.add(onsubmitjButton);
				onsubmitjButton.setText("\u63d0  \u4ea4");
				onsubmitjButton.setBounds(252, 274, 97, 29);
				onsubmitjButton.addActionListener(new ActionListener() {
					public void actionPerformed(ActionEvent evt) {
						onsubmitjButtonActionPerformed(evt);
					}
				});
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	
	private void initializeStatus(){
		TableColumn itemtypeColumn = usersjTable.getColumn("Status");
		JComboBox combo = new JComboBox();
		combo.removeAllItems();
		combo.addItem("学生");
		combo.addItem("教师");
		combo.addItem("管理员");
		itemtypeColumn.setCellEditor(new DefaultCellEditor(combo));
	}
	private void onsubmitjButtonActionPerformed(ActionEvent evt) {
		//System.out.println("onsubmitjButton.actionPerformed, event="+evt);
		//TODO add your code for onsubmitjButton.actionPerformed
		Vector DataVector=model.getDataVector();
		Vector RowVector;
		String infotoserver="UPDATEUSERINFO:";
		String usernamestr = null,passwordstr = null,statusstr = null;
		int userid;
		for(int i=0;i<DataVector.size();i++){
			RowVector=(Vector)DataVector.elementAt(i);  
			userid=Integer.parseInt(RowVector.elementAt(1).toString());
			if(!(Boolean)RowVector.elementAt(0)){
				for(int j=0;j<RowVector.size();j++){					
					usernamestr=RowVector.elementAt(2).toString();
					passwordstr=RowVector.elementAt(3).toString();
					statusstr=RowVector.elementAt(4).toString();
				}
					infotoserver=infotoserver+"update user_info set username='"+
					usernamestr+"',password='"+passwordstr+"',status='"+
					statusstr+"' where id="+userid;					
			}
			else {
				infotoserver=infotoserver+"delete from user_info where id="+userid;
			}
		}
		AdminFrame.pswriter.println(infotoserver);
		AdminFrame.pswriter.flush();
		String returninfo = null;
		  try {
			returninfo=AdminFrame.bufreader.readLine();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
			JOptionPane.showMessageDialog(null,"与服务器的连接已经中断，请重新连接","连接中断",JOptionPane.ERROR_MESSAGE);
			AdminFrame.reconnectButton.setEnabled(true);
			AdminFrame.reconnectMenuItem.setEnabled(true);
			return;
		}
		if(returninfo==null){
			JOptionPane.showMessageDialog(null,"与服务器的连接已经中断，请重新连接","连接中断",JOptionPane.ERROR_MESSAGE);
			AdminFrame.reconnectButton.setEnabled(true);
			AdminFrame.reconnectMenuItem.setEnabled(true);
			return ;
		}
		if("UPDATEUSERFAIL".equals(returninfo)){
			JOptionPane.showMessageDialog(null,"操作失败，请重试","联机测试系统",JOptionPane.ERROR_MESSAGE);
			return ;
		}
		for(int i=0;i<DataVector.size();i++){
			RowVector=(Vector)DataVector.elementAt(i);  
			if((Boolean)RowVector.elementAt(0))
				model.removeRow(i);
		}
		JOptionPane.showMessageDialog(null,"用户信息更新成功","联机测试系统",JOptionPane.ERROR_MESSAGE);
	}

}
class PriceEditor extends DefaultCellEditor {
	public PriceEditor(JComboBox combo) {
		super(combo);
	}
	public boolean isCellEditable(EventObject e) {
		JPanel messagePanel = new JPanel();
		JPasswordField pwf = new JPasswordField(10);

		System.out.println(e);
		
		messagePanel.add(new JLabel("Password:"));
		messagePanel.add(pwf);

		JOptionPane.showMessageDialog(null, 
					messagePanel, "Password Required",
					JOptionPane.INFORMATION_MESSAGE);

		if(pwf.getText().trim().equals("dolby")) {
			return true;
		}
		else {
			JOptionPane.showMessageDialog(null, 
				"Wrong Password!", "Access Failed", 
				JOptionPane.INFORMATION_MESSAGE);
			return false;
		}
	}
}