resulttra.java

完整的JAVA工程

package employee;

import java.awt.*;
import java.sql.*;
import javax.swing.*;
import javax.swing.table.*;
import java.util.*;
import java.awt.event.*;
import java.net.*;

/**
 * 显示培训查询模块查询结果的类
 */
public class ResultTra extends JFrame {
	JLabel jLabel1 = new JLabel();
	JButton jBExit = new JButton();
	JScrollPane jScrollPane1 ;
	JTable jTabEmpInfo;
	String[] colName = {"培训编号","培训名称","培训内容"};
	String[][] colValue;
	String tColValue;
	String tColName;
	
	public ResultTra(String colname,String colvalue) {
		this.tColValue = colvalue;
		this.tColName = colname;

		this.setTitle("培训查询结果");
		//设置程序图标
		this.setIconImage(getImage("icon.gif")); 
		//设置运行位置，使对话框居中
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		this.setLocation( (int) (screenSize.width - 400) / 2 ,
						(int) (screenSize.height - 300) / 2 + 45);
		TraBean rTra = new TraBean();
		try {
			colValue = rTra.traAllSearch(tColName,tColValue);
			if(colValue == null){
				JOptionPane.showMessageDialog(null, "没有符合条件的记录"); 
				this.dispose();
			}
			else{
				jTabEmpInfo = new JTable(colValue,colName);
				jScrollPane1 = new JScrollPane(jTabEmpInfo);
				this.getContentPane().add(jScrollPane1,BorderLayout.CENTER);
				this.pack();
				this.setVisible(true);
			}
		}
		catch(Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 通过给定的文件名获得图像
	 */
	Image getImage(String filename) {
		URLClassLoader urlLoader = (URLClassLoader)this.getClass().
			getClassLoader();
		URL url = null;
		Image image = null;
		url = urlLoader.findResource(filename);
		image = Toolkit.getDefaultToolkit().getImage(url);
		MediaTracker mediatracker = new MediaTracker(this);
		try {
			mediatracker.addImage(image, 0);
			mediatracker.waitForID(0);
		}
		catch (InterruptedException _ex) {
			image = null;
		}
		if (mediatracker.isErrorID(0)) {
			image = null;
		}
		return image;
	}
}