用JDBC实现简单的数据库查询的一个例子

public class JavaJdbc {
	
	private static Connection getConn() throws Exception
	{
		Connection conn = null;
		try
		{
			Class.forName("oracle.jdbc.driver.OracleDriver");
			conn = DriverManager.getConnection("jdbc:oracle:thin:@10.111.11.11:1521:ora11g","mima","mima");
		}catch(Exception ex)
		{
			ex.printStackTrace();
		}
		return conn;
	}
	
	private static void queryData() throws Exception
	{
		Connection conn = getConn();
		PreparedStatement ps = null;
		ResultSet rs = null;
		try
		{
			String sql = "select * from 'TB_DIC_CHANNEL";
			ps = conn.prepareStatement(sql);
			rs = ps.executeQuery();
			while(rs.next())
			{
				System.out.println(rs.getString(2));				
			}
		}catch(Exception e)
		{
			e.printStackTrace();
		}
	}
	
	public static void main(String[] args) throws Exception {
		queryData();
	}

}