?? 查詢課表.java
字號(hào):
/*
* 查詢課表.java
*
* Created on 2008年10月18日, 下午3:28
*/
package javaapplication1;
import java.sql.*;
import java.util.*;
import java.awt.*;
import javax.swing.*;
/**
*
* @author mis06
*/
public class 查詢課表 extends javax.swing.JPanel {
/** Creates new form 查詢課表 */
public 查詢課表() {
initComponents();
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc=" Generated Code ">//GEN-BEGIN:initComponents
private void initComponents() {
jLabel1 = new javax.swing.JLabel();
jComboBox1 = new javax.swing.JComboBox();
jButton1 = new javax.swing.JButton();
jScrollPane2 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jLabel1.setFont(new java.awt.Font("宋體", 0, 14));
jLabel1.setText("\u5b66\u5e74");
jComboBox1.setFont(new java.awt.Font("宋體", 0, 14));
jComboBox1.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "2007\u79cb", "2007\u6625", "2006\u79cb", "2006\u6625", "2005\u79cb" }));
jButton1.setFont(new java.awt.Font("宋體", 0, 14));
jButton1.setText("\u67e5\u8be2");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane2.setViewportView(jTextArea1);
org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(this);
this.setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(32, 32, 32)
.add(jScrollPane2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 379, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.add(layout.createSequentialGroup()
.add(65, 65, 65)
.add(jLabel1)
.add(20, 20, 20)
.add(jComboBox1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 78, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(39, 39, 39)
.add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 65, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(112, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.addContainerGap()
.add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
.add(jLabel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 25, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(jComboBox1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(jButton1))
.addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
.add(jScrollPane2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 342, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(192, 192, 192))
);
}// </editor-fold>//GEN-END:initComponents
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
Statement statement;
String time=new String(jComboBox1.getSelectedItem().toString());
try{
Connect con=new Connect();
statement=con.con.createStatement();
StringBuffer results=new StringBuffer();
results.append("課程號(hào)"+"\t");
results.append("課程名"+"\t");
results.append("任課教師"+"\t");
results.append("課程學(xué)分"+"\t");
results.append("課程屬性"+"\t");
results.append("考核方式"+"\t");
results.append("上課時(shí)間"+"\t"+"\t");
results.append("上課地點(diǎn)"+"\t");
results.append("\n");
String sql="SELECT DISTINCT 課程.課程號(hào),課程.課程名,教工.姓名,課程.學(xué)分,課程.選課屬性," +
"課程.考核方式,課表.上課時(shí)間,教室.教室地點(diǎn) FROM 課表,課程,教工,學(xué)生,用戶,教室 WHERE" +
" 課表.班級(jí)編號(hào)=(SELECT 班級(jí)編號(hào) FROM 學(xué)生 WHERE 學(xué)號(hào)=(SELECT 編號(hào) FROM 用戶 WHERE 狀態(tài)='登錄'))" +
" AND 課程.開課學(xué)年='"+time+"' AND 課程.課程號(hào)=課表.課程號(hào) AND 教工.教工編號(hào)=課表.教師編號(hào) AND 教室." +
"教室編號(hào)=課表.教室編號(hào)";
ResultSet resultSet0=statement.executeQuery(sql);
ResultSetMetaData metaData0=resultSet0.getMetaData();
int numberOfColumns0=metaData0.getColumnCount();
while(resultSet0.next()){
for(int i=1;i<=numberOfColumns0;i++)
results.append(resultSet0.getObject(i).toString()+"\t");
results.append("\n");
}
jTextArea1.setText(results.toString());
jTextArea1.setEditable(false);
}
catch(SQLException sqlException){
JOptionPane.showMessageDialog(null,sqlException.getMessage(),"Database Error",JOptionPane.ERROR_MESSAGE);
System.exit(1);}
catch(ClassNotFoundException classNotFound){
JOptionPane.showMessageDialog(null,classNotFound.getMessage(),"Driver Not Found",JOptionPane.ERROR_MESSAGE);
System.exit(1); }// TODO add your handling code here:
}//GEN-LAST:event_jButton1ActionPerformed
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jButton1;
private javax.swing.JComboBox jComboBox1;
private javax.swing.JLabel jLabel1;
private javax.swing.JScrollPane jScrollPane2;
private javax.swing.JTextArea jTextArea1;
// End of variables declaration//GEN-END:variables
}
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