1 // String转换为Date  
2 String dateStr="2013-8-13 23:23:23";  
3 String pattern="yyyy-MM-dd HH:mm:ss";  
4 DateFormate dateFormat=new SimpleDateFormat(pattern);  
5 Date date=dateFormat.parse(dateStr);  
6 date=dateFormat.format(date); 

1 // java.util.Date转换为java.sql.Date  
2 new java.sql.Date(utilDate.getTime());// 其中utilDate为java.util.Date类型的对象 

1 // Date转为Calendar  
2 Date date=new Date();  
3 Calendar calendar=Calendar.getInstance();  
4 calendar.setTime(date);  
5   
6 // Calendar转为Date  
7 Calendar ca=Calendar.getInstance();    
8 Date d =(Date) ca.getTime(); 

1 // java.util.Calendar转换为java.sql.Timestamp  
2 new Timestamp(Calendar.getInstance().getTimeInMillis());  
3 // java.util.Date转换为java.sql.Timestamp  
4 new Timestamp(date.getTime());  
5 // String转换为java.sql.Timestamp，String格式：yyyy-mm-dd hh:mm:ss[.f...] ，方括号表示可选  
6 Timestamp.valueOf("2013-07-06 01:49:30"); 

1) ps.setDate(1,new java.sql.Date(System.currentTimemillis()));
2) ps.setTime(2,new java.sql.Time(System.currentTimemillis()));
3) ps.setTimestamp(3,new java.sql.Timestamp(System.currentTimemillis()));

1) getDate(String colname); // 取出日期 格式：0000-00-00
2) getTimestamp(String colname); // 取出日期和时间 格式：0000-00-00 00:00:00.000

public class ScriptInsertNo32 {
    public static void main(String[] args) {
        Connection connection = null;
        PreparedStatement preparedStatement1 = null;
        PreparedStatement preparedStatement2 = null;
        Calendar calendar = Calendar.getInstance();
        Date nowDate = null;
        
        try {
            String driverClass = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
            String url = "jdbc:sqlserver://localhost:1433;DatabaseName=water";
            String userString = "sa";
            String passwardString = "sicc2005";
            
            Class.forName(driverClass);
            connection = DriverManager.getConnection(url, userString, passwardString);
            
            String  sql1 = "INSERT INTO dbo.MonitorData VALUES "
                    + "(‘2c94a03d475d56f201475d71905e0006‘, ‘2c94a03d475d56f201475d5dc8570003‘, ?, ?, ?)";
            String  sql2 = "INSERT INTO dbo.MonitorData VALUES "
                    + "(‘2c94941448a657ff0148a718521c0007‘, ‘2c94941448a657ff0148a66db3df0003‘, ?, ?, ?)";
            preparedStatement1 = connection.prepareStatement(sql1);
            preparedStatement2 = connection.prepareStatement(sql2);
            nowDate = new Date();
            calendar.setTime(nowDate);
            Random random = new Random();
            DecimalFormat df = new DecimalFormat("0.00");
            
            for(int i = 0; i < 5; ++i) {
                double val1 = ((double) (random.nextInt()%80)/10);
                double val2 = ((double) (random.nextInt()%1800)/10);
            //    System.out.println("val:" + df.format(val));
                val1 = Double.parseDouble(df.format(val1));
                val2 = Double.parseDouble(df.format(val2));
                val1 = Math.abs(val1);
                val2 = Math.abs(val2);
                calendar.add(Calendar.MINUTE, 5);
                Timestamp timestamp = new Timestamp(calendar.getTimeInMillis());
                preparedStatement1.setTimestamp(1, timestamp);
                preparedStatement1.setTimestamp(2, timestamp);
                preparedStatement2.setTimestamp(1, timestamp);
                preparedStatement2.setTimestamp(2, timestamp);
                preparedStatement1.setDouble(3, val1);
                preparedStatement2.setDouble(3, val2);
                preparedStatement1.execute();
                preparedStatement2.execute();
            }
        
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if(connection != null) {
                    connection.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            try {
                if(preparedStatement1 != null) {
                    preparedStatement1.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
            try {
                if(preparedStatement2 != null) {
                    preparedStatement2.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
}