package test;

import java.sql.*;

public class test {
    public static void main(String[] args) {
        //声明Connection对象
        Connection con;
        //驱动程序名
        String driver = "com.mysql.jdbc.Driver";
        //URL指向要访问的数据库名login
        String url = "jdbc:mysql://192.168.100.71:6033,192.168.100.72:6033,192.168.100.73:6033/sbtest?failOverReadOnly=false&secondsBeforeRetryMaster=0&queriesBeforeRetryMaster=0";
        //MySQL配置时的用户名
        String user = "test";
        //MySQL配置时的密码
        String password = "111111";
        //遍历查询结果集
        try {
            //加载驱动程序
            Class.forName(driver);
            //1.getConnection()方法，连接MySQL数据库！！
            con = DriverManager.getConnection(url, user, password);
            if (!con.isClosed())
                System.out.println("Succeeded connecting to the Database!");
            //2.创建statement类对象，用来执行SQL语句！！
            Statement statement = con.createStatement();
            //要执行的SQL语句
            String sql = "select count(*) from sbtest1";    //从建立的login数据库的login——message表单读取数据
            //3.ResultSet类，用来存放获取的结果集！！
            ResultSet rs = statement.executeQuery(sql) ;
            System.out.println("-----------------");
            System.out.println("执行结果如下所示:");
            System.out.println("-----------------");
            Integer id = null;
            Integer k = null;
            String c = null;
            String pad = null;
            while (rs.next()) {
                //获取stuname这列数据
                id = rs.getInt(id);
                //获取stuid这列数据
                k = rs.getInt(k);
                c = rs.getString(c);
                pad = rs.getString(pad);
                //首先使用ISO-8859-1字符集将name解码为字节序列并将结果存储新的字节数组中。
                //然后使用GB2312字符集解码指定的字节数组。
                //name = new String(name.getBytes("ISO-8859-1"), "gb2312");
                //输出结果
                System.out.println(id + "\t" + k + "\t" + c + "\t" + pad );
            }
            rs.close();
            con.close();
        } catch (ClassNotFoundException e) {
            //数据库驱动类异常处理
            System.out.println("Sorry,can`t find the Driver!");
            e.printStackTrace();
        } catch (SQLException e) {
            //数据库连接失败异常处理
            e.printStackTrace();
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        } finally {
            System.out.println("数据库数据成功获取！！");
        }
    }

}