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我必須將ms訪問數據庫中的數據顯示到標籤中。表包含這些列名從java中訪問數據的數據
ID(Long Integer),
Name(Text),)
Gender(Text),
Address(Text),
City (Text).
用戶選擇組合框的值，其是從表ID和相應顯示相應的數據。錯誤是：
sucess sssssucess
java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Data type mismatch in criteria expression.
package studentdetails;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.sql.*;
import java.awt.event.KeyAdapter.*;
import java.awt.event.ActionListener.*;
import javax.swing.AbstractButton.*;
import java.text.SimpleDateFormat;
import java.util.logging.Level;
import java.util.logging.Logger;
class StudentDetails extends JFrame implements ActionListener,KeyListener
{
JLabel l1,l2,l3,l4,l5,l6,l7,l8,l9;
JLabel ll1,ll2,ll3,ll4,ll5,ll6,ll7;
JButton b1,b2,b3;
JComboBox c1;
Connection conn;
public StudentDetails()
{
super("Institute Management System");
l1=new JLabel("ID::");
l2=new JLabel("STUDENT NAME::");
l3=new JLabel("GENDER::");
l4=new JLabel("ADDRESS::");
l5=new JLabel("CITY::");
l6=new JLabel("CONTACT NO.::");
//l7=new JLabel("DATE OF JOINING::");
l8=new JLabel("STUDENT DETAILS::");
l9=new JLabel("SELECT THE STUDENT ID:");
ll1 = new JLabel();
ll2 = new JLabel();
ll3 = new JLabel();
ll4 = new JLabel();
ll5 = new JLabel();
ll6 = new JLabel();
//ll7 = new JLabel();
b1=new JButton("VIEW");
b2=new JButton("BACK");
b3=new JButton("CLEAR");
c1=new JComboBox();
add(l8);
l8.setBounds(210,30,150,80);
add(l9);
l9.setBounds(55,75,150,80);
add(c1);
c1.setBounds(250,100,150,30);
add(l1);
l1.setBounds(120,150,150,30);
add(ll1);
ll1.setBounds(250,150,150,30);
add(l2);
l2.setBounds(120,200,150,30);
add(ll2);
ll2.setBounds(250,200,150,30);
add(l3);
l3.setBounds(120,250,150,30);
add(ll3);
ll3.setBounds(250,250,150,30);
add(l4);
l4.setBounds(120,300,150,30);
add(ll4);
ll4.setBounds(250,300,150,30);
add(l5);
l5.setBounds(120,350,150,30);
add(ll5);
ll5.setBounds(250,350,150,30);
/*add(l6);
l6.setBounds(120,400,150,30);
add(ll6);
ll6.setBounds(250,400,150,30);
add(l7);
l7.setBounds(120,450,150,30);
add(ll7);
ll7.setBounds(250,450,150,30);
*/
add(b1);
b1.setBounds(500,100,80,30);
add(b2);
b2.setBounds(200,520,80,30);
add(b3);
b3.setBounds(450,520,80,30);
setSize(700,700);
setBackground(Color.BLUE);
setLayout(null);
setVisible(true);
setExtendedState(MAXIMIZED_BOTH);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
b1.addActionListener(this);
b2.addActionListener(this);
b3.addActionListener(this);
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn=DriverManager.getConnection("jdbc:odbc:LANGUAGEDSN");
System.out.println("sucess");
Statement stmt=conn.createStatement();
String str = "Select ID from STUDENTDETAILS";
ResultSet rs = stmt.executeQuery(str);
while(rs.next())
{
c1.addItem(rs.getString(1));
}
}
catch(Exception e)
{
System.out.println(e);
}
}
public void actionPerformed(ActionEvent ae)
{
Object ob=ae.getSource();
String i = (String)c1.getSelectedItem();
//SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd HH:mm", Locale.getDefault());
//String sdt_ = sdf.format(dt_);
if(ob==b1)
{
try
{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
conn=DriverManager.getConnection("jdbc:odbc:LANGUAGEDSN");
Statement stmt=conn.createStatement();
String st = "Select * from STUDENTDETAILS where ID ='"+i+"'";
System.out.println("sssssucess");
ResultSet rs = stmt.executeQuery(st);
while(rs.next())
{
l1.setText(rs.getString(1));
ll2.setText(rs.getString(2));
ll3.setText(rs.getString(3));
ll4.setText(rs.getString(4));
ll5.setText(rs.getString(5));
}
}
catch(Exception e)
{
System.out.println(e);
}
}
else if(ob==b2)
{
ll1.setText("");
ll2.setText("");
ll3.setText("");
ll4.setText("");
ll5.setText("");
//ll6.setText("");
//ll7.setText("");
}
}
public static void main(String args[])
{
new StudentDetails();
}
@Override
public void keyTyped(KeyEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void keyPressed(KeyEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}
@Override
public void keyReleased(KeyEvent e) {
throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
}