本文实例讲述了Java实现批量向mysql写入数据的方法。分享给大家供大家参考,具体如下:
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private static String user = "root" ;
private static String pass = "123456" ;
private static String URL = "jdbc:mysql://192.168.1.116:3306/test" ;
public static void main(String args[]) throws SQLException, ClassNotFoundException{
//获取时间信息
SimpleDateFormat sfmt = new SimpleDateFormat( "yyyyMMddHHmmss" );
Date lastHour = new Date( new Date().getTime() - 3600000 ); //1小时前
String hourMeta = sfmt.format(lastHour).substring( 0 , 10 ); //小时的时间戳,用于大数据缩小搜索范围
int day = Integer.parseInt(sfmt.format(lastHour).substring( 0 , 8 ));
int hour = Integer.parseInt(String.valueOf(lastHour.getHours()));
//连接mysql数据库
Connection conn = DriverManager.getConnection(URL , user, pass);
conn.setAutoCommit( false );
//向mysql中插入数据
String sql = "insert into test1 values(?,?)" ;
PreparedStatement ps = conn.prepareStatement(sql); //要执行sql语句的对象
ps.setInt( 1 , day);
ps.setInt( 2 , hour);
//ps.setString(1, "aa");
//ps.setString(2, "bb");
ps.addBatch(); //再添加一次预定义参数
ps.executeBatch(); //执行批量执行
conn.commit();
if (ps != null ) {
ps.close();
}
if (conn != null ) {
conn.close();
}
}
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希望本文所述对大家java程序设计有所帮助。
原文链接:http://blog.csdn.net/m53931422/article/details/45390037