Writing SQL Server database connection classes with JavaBean

The following is a simple database connection tool class written in SQL Server, encapsulated in a WEB project (web-inf/classes/) directory, and introduced in Java or JSP pages.

ODBC name: MySQL;

User name: Dxaw;

Password: 123;

Method Executeupdate (): Update the database;

Method ExecuteQuery (): Returns a recordset through an SQL statement;

The code is as follows:

Class Conn.db.conndb.java

package conn.db;
import java.sql.*;
public class conndb {
　Connection conn;
　ResultSet rs;
　private int count;
　　public conndb() {
　　try {
　　　　Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
　　} catch (Exception ex) {}
　　}
　public ResultSet executeQuery(String sql){
　　try {
　　　 conn=DriverManager.getConnection("Jdbc:Odbc:mysql","dxaw","123");
　　　　Statement stat=conn.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,
ResultSet.CONCUR_UPDATABLE);
　　　　rs=stat.executeQuery(sql);
　　} catch (Exception ex1) {
　　}
　return rs;
　}
public void executeUpdate(String sql){
　　 try {
　　　　　　conn = DriverManager.getConnection("Jdbc:Odbc:mysql", "dxaw","123");
　　　　　　Statement stat=conn.createStatement();
　　　　　　stat.executeQuery(sql);
　　　　} catch (Exception ex2) {
　　}
}
}