loginframe.java

《j2ee开发全程实录》随书源码

package com.cownew.PIS.framework.client;

import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.util.prefs.Preferences;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;



import com.cownew.PIS.framework.common.exception.PISException;
import com.cownew.PIS.framework.common.services.ACInfo;
import com.cownew.PIS.framework.common.services.ILoginService;
import com.cownew.ctk.common.StringUtils;
import com.cownew.ctk.ui.swing.MsgBox;

public class LoginFrame extends JFrame
{

	private static final String USER_NAME = "UserName";

	private static final String ACINDEX = "ACIndex";

	private static final long serialVersionUID = 1L;

	private JPanel jContentPane = null;

	private JLabel jLabel = null;

	private JLabel jLabel1 = null;

	private JLabel jLabel2 = null;

	private JComboBox comboACList = null;

	private JTextField txtUserName = null;

	private JPasswordField txtPassword = null;

	private JButton btnLogin = null;

	private JButton btnExit = null;

	/**
	 * @param owner
	 * @ 
	 */
	public LoginFrame() 
	{
		super();
		initialize();
		loadConfig();
	}

	/**
	 * This method initializes this
	 * 
	 * @return void
	 * @ 
	 */
	private void initialize() 
	{
		this.setSize(300, 200);
		this.setTitle("登录");
		this.setContentPane(getJContentPane());

		ILoginService loginService = (ILoginService) RemoteServiceLocator
		.getRemoteService(ILoginService.class);
		
		//取得所有定义的帐套列表
		ACInfo[] acInfos = loginService.getAllACInfo();
		comboACList.removeAllItems();
		
		//添加到帐套列表对话框中
		for (int i = 0, n = acInfos.length; i < n; i++)
		{
			comboACList.addItem(acInfos[i]);
		}

	}

	/**
	 * This method initializes jContentPane
	 * 
	 * @return javax.swing.JPanel
	 */
	private JPanel getJContentPane()
	{
		if (jContentPane == null)
		{
			jLabel2 = new JLabel();
			jLabel2.setBounds(new Rectangle(26, 89, 64, 18));
			jLabel2.setText("密码");
			jLabel1 = new JLabel();
			jLabel1.setBounds(new Rectangle(26, 59, 64, 18));
			jLabel1.setText("用户名");
			jLabel = new JLabel();
			jLabel.setText("帐套");
			jLabel.setBounds(new Rectangle(26, 28, 64, 18));
			jContentPane = new JPanel();
			jContentPane.setLayout(null);
			jContentPane.add(jLabel, null);
			jContentPane.add(jLabel1, null);
			jContentPane.add(jLabel2, null);
			jContentPane.add(getComboACList(), null);
			jContentPane.add(getTxtUserName(), null);
			jContentPane.add(getTxtPassword(), null);
			jContentPane.add(getBtnLogin(), null);
			jContentPane.add(getBtnExit(), null);
		}
		return jContentPane;
	}

	/**
	 * This method initializes comboACList	
	 * 	
	 * @return javax.swing.JComboBox	
	 */
	private JComboBox getComboACList()
	{
		if (comboACList == null)
		{
			comboACList = new JComboBox();
			comboACList.setBounds(new Rectangle(127, 28, 146, 19));
		}
		return comboACList;
	}

	/**
	 * This method initializes txtUserName	
	 * 	
	 * @return javax.swing.JTextField	
	 */
	private JTextField getTxtUserName()
	{
		if (txtUserName == null)
		{
			txtUserName = new JTextField();
			txtUserName.setBounds(new Rectangle(127, 59, 146, 22));
		}
		return txtUserName;
	}

	/**
	 * This method initializes txtPassword	
	 * 	
	 * @return javax.swing.JPasswordField	
	 */
	private JPasswordField getTxtPassword()
	{
		if (txtPassword == null)
		{
			txtPassword = new JPasswordField();
			txtPassword.setBounds(new Rectangle(127, 89, 146, 22));
		}
		return txtPassword;
	}

	/**
	 * This method initializes btnLogin	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getBtnLogin()
	{
		if (btnLogin == null)
		{
			btnLogin = new JButton();
			btnLogin.setBounds(new Rectangle(36, 132, 65, 23));
			btnLogin.setText("登录");
			btnLogin.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e)
				{
					btnLogin_actionPerformed(e);
				}
			});
		}
		return btnLogin;
	}

	protected void btnLogin_actionPerformed(ActionEvent e)
	{
		if (comboACList.getSelectedIndex() < 0)
		{
			MsgBox.showError(this, "请选择帐套!");
			return;
		}
		if (StringUtils.isEmpty(txtUserName.getText()))
		{
			MsgBox.showError(this, "用户名不能为空!");
			return;
		}

		ACInfo acInfo = (ACInfo) comboACList.getSelectedItem();
		String userName = txtUserName.getText().trim();
		String password = txtPassword.getText().trim();

		try
		{
			ILoginService loginService = (ILoginService) RemoteServiceLocator
					.getRemoteService(ILoginService.class);
			
			//验证用户名密码
			String sessionId = loginService.login(userName, password, acInfo
					.getName());
			if (!StringUtils.isEmpty(sessionId))
			{
				RemoteServiceLocator.initLocator(sessionId);
				//保存配置
				saveConfig();				
				dispose();
				MainFrame mainFrame = MainFrame.getMainFrame();
				mainFrame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
				mainFrame.setLocationRelativeTo(null);
				mainFrame.setVisible(true);

			} else
			{
				MsgBox.showError(this, "用户名密码错误,无法登录!");
				return;
			}
		} catch (PISException pe)
		{
			MsgBox.showError(this, pe.getMessage());
			return;
		}
	}

	/**
	 * This method initializes btnExit	
	 * 	
	 * @return javax.swing.JButton	
	 */
	private JButton getBtnExit()
	{
		if (btnExit == null)
		{
			btnExit = new JButton();

			btnExit.setBounds(new Rectangle(151, 132, 65, 23));
			btnExit.setText("退出");
			btnExit.addActionListener(new java.awt.event.ActionListener() {
				public void actionPerformed(java.awt.event.ActionEvent e)
				{
					btnExit_actionPerformed(e);
				}
			});
		}
		return btnExit;
	}

	protected void btnExit_actionPerformed(ActionEvent e)
	{
		System.exit(0);
	}

	protected void loadConfig()
	{
		Preferences pref = Preferences.userNodeForPackage(LoginFrame.class);
		comboACList.setSelectedIndex(pref.getInt(ACINDEX, 0));
		txtUserName.setText(pref.get(USER_NAME, ""));
	}

	protected void saveConfig()
	{
		Preferences pref = Preferences.userNodeForPackage(LoginFrame.class);
		pref.putInt(ACINDEX, comboACList.getSelectedIndex());
		pref.put(USER_NAME, txtUserName.getText());
	}

} //  @jve:decl-index=0:visual-constraint="146,14"