?? stusearch.java
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/*
* Stusearch.java
*
* Created on 2007年11月17日, 上午11:29
*/
package javaapplication1;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import javax.swing.JOptionPane;
/**
*
* @author mis05
*/
public class Stusearch extends javax.swing.JPanel {
/** Creates new form Stusearch */
public Stusearch() {
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() {
jButton1 = new javax.swing.JButton();
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jButton1.setText("\u67e5\u8be2\u8bfe\u7a0b\u6210\u7ee9");
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
search(evt);
}
});
jTextArea1.setColumns(20);
jTextArea1.setRows(5);
jScrollPane1.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(46, 46, 46)
.add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 300, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
.add(layout.createSequentialGroup()
.add(113, 113, 113)
.add(jButton1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 140, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(54, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
.add(layout.createSequentialGroup()
.add(45, 45, 45)
.add(jScrollPane1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 171, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
.add(22, 22, 22)
.add(jButton1)
.addContainerGap(39, Short.MAX_VALUE))
);
}// </editor-fold>//GEN-END:initComponents
private void search(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_search
Statement sql;
try{
Conect conect = new Conect();
sql = conect.dbConn.createStatement();
StringBuffer output = new StringBuffer();
String number = null;
String string1 = null;
String output1;
number="select 學生編號 from 學生 where 登錄 =1";
ResultSet resultSet=sql.executeQuery(number);
ResultSetMetaData metaData=resultSet.getMetaData();
int numberOfColumns=metaData.getColumnCount();
while(resultSet.next()){
for(int i=1;i<=numberOfColumns;i++)
string1=resultSet.getObject(i).toString();
}
int temp = 0;
ResultSet rs1 = sql.executeQuery("select 課程名,成績 from 成績,課程 where 學生編號='"+string1+"' and 成績.課程編號=課程.課程編號");
ResultSetMetaData metaData1=rs1.getMetaData();
int numberOfColumns1=metaData1.getColumnCount();
for(int i=1;i<=numberOfColumns1;i++)
output.append(metaData1.getColumnName(i)+"\t\t");
output.append("\n");
while( rs1.next() ) {
for(int i=1;i<=numberOfColumns1;i++)
output.append(rs1.getObject(i).toString()+"\t");
output.append("\n");
}
output1 = output.toString();
jTextArea1.setText( output1 );
}
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_search
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JButton jButton1;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTextArea jTextArea1;
// End of variables declaration//GEN-END:variables
}
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