dbsource.java

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package don;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;


public class DBSource
{
	private Connection conn=null;
	private Statement sta=null;
	private ResultSet rs=null;
	public DBSource()
	{

		try
		{
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
			conn=DriverManager.getConnection("jdbc:odbc:mydb");
			sta=conn.createStatement();
		} 
		catch (ClassNotFoundException e)
		{
			
			e.printStackTrace();
		} 
		catch (SQLException e)
		{
			
			e.printStackTrace();
		}
	}
	//执行查询操作
	public ResultSet executeQuery(String sql)
	{
		try 
		{
			rs=sta.executeQuery(sql);
		} 
		
		catch (SQLException e) 
		{
			
			e.printStackTrace();
		}
		return rs;
	}	
	//执行插入修改操作
	public boolean execute(String sql){
		boolean b=false;
		try 
		{
			int i=sta.executeUpdate(sql);
			if(i>0)
			{
				b=true;
			}
		} 
		catch (SQLException e) 
		{
			
			e.printStackTrace();
		}
		return b;
	}
}