java连接mysql实现

/**
 * Created by claims on 10/22/16.
 */

import java.sql.*;




public class MysqlDB {

    public static void main(String[] agrs) {
        System.out.print("hello java jdbc\n");

        Connection con;

        String driver = "com.mysql.jdbc.Driver";
        String url = "jdbc:mysql://10.11.1.200:3306/claims";

        String user = "root";
        String password = "root";


        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 * from field";
            //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("-----------------");
            System.out.println(" sec_code" + "\t" + " sec_name" + "\t" + " sec_field");
            System.out.println("-----------------");

            String name = null;
            String id = null;
            String field = null;
            while(rs.next()){
                //获取stuname这列数据
                name = rs.getString("sec_name");
                //获取stuid这列数据
                id = rs.getString("sec_code");

                field = rs.getString("sec_field");
                //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" + name + "\t" + field);
            }
            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！！");
        }
    }
}