systemtable.java

来自「这是一本描述JDBC数据库的书籍」· Java 代码 · 共 53 行

/*
 * SystemTable.java
 *
 * Created on June 9, 2005, 2:41 PM
 *
 * To change this template, choose Tools | Options and locate the template under
 * the Source Creation and Management node. Right-click the template and choose
 * Open. You can then make changes to the template in the Source Editor.
 */

package ch01;
import java.sql.*;
import javax.sql.*;
import common.*;
/**
 *
 * @author kevin
 */
public class SystemTable {
    
    /** Creates a new instance of SystemTable */
    public SystemTable() {
    }
    
    public static void main(String[] args){
        Connection conn = null;
        Statement  stmt = null;
        ResultSet  rs   = null;
        try{
            ConnectionFactory factory = 
                ConnectionFactory.getConnectionFactory();
            conn = factory.getConnection();
            
            stmt = conn.createStatement();
            rs = stmt.executeQuery("select * from tab");
            while(rs.next()){
                System.out.println(rs.getString(1));
                System.out.println(rs.getString(2));
            }
        }catch(Exception e){
            e.printStackTrace();
        }finally{
            DBUtils.close(rs, stmt, conn);
        }
    }
    
}