JDBC 实现sql操作

package insert; 
import java.sql.Connection;import java.sql.DriverManager;import java.sql.SQLException;import java.util.Date; 
import com.mysql.jdbc.PreparedStatement; 
public class InsertTest { 
     public static void main(String[] args) throws ClassNotFoundException, SQLException {         final String url = "jdbc:mysql://127.0.0.1/test" ; 
         final String name = "com.mysql.jdbc.Driver" ; 
         final String user = "root" ; 
         final String password = "root" ; 
         Connection conn = null ; 
         Class.forName(name); //指定连接类型 
         con = DriverManager.getConnection(url, user, password); //获取连接 
         if (con!= null ) {
             System.out.println( "获取连接成功" );
             insert(con);
         } else {
             System.out.println( "获取连接失败" );
         }
 
     }     public static void insert(Connection con) {         // 开始时间
         Long begin = new Date().getTime();         // sql前缀
         String prefix = "INSERT INTO teacher (id,name,password,sex,description,img_url,school_name,register_date,remark) VALUES " ;         try {             // 保存sql后缀
             StringBuffer suffix = new StringBuffer();             // 设置事务为非自动提交
             conn.setAutoCommit( false );             // 比起st，pst会更好些
             PreparedStatement  pst = (PreparedStatement) conn.prepareStatement( "" ); //准备执行语句
             // 外层循环，总提交事务次数
             for ( int i = 1 ; i <= 100 ; i++) {
                 sbuf = new StringBuffer();                 // 第j次提交步长
                 for ( int j = 1 ; j <= 100000 ; j++) {                     // 构建SQL后缀
                     sbuf .append( "('" + uutil.UUIDUtil.getUUID()+ "','" +i*j+ "','123456'" + ",'男'" + ",'教师'" + ",'www.bbk.com'" + ",'XX大学'" + ",'" + "2016-08-12 14:43:26" + "','备注'" + ")," );
                 }                 // 构建完整SQL
                 String sql = prefix + sbuf .substring( 0 , sbuf .length() - 1 );                 // 添加执行SQL
                 pst.addBatch(sql);                 
                 pst.executeBatch();              // 执行操作   
                 conn.commit();                // 提交事务
                 suffix = new StringBuffer(); // 清空上一次添加的数据
             }             
             pst.close();
             conn.close();
         } catch (SQLException e) {
             e.printStackTrace();
         }         // 结束时间
         Long end = new Date().getTime();         // 耗时
         System.out.println( "1000万条数据插入花费的时间为 : " + (end - begin) / 1000 + " s" );
         System.out.println( "插入完成" );
     }
}