Java sql.Date setTime()方法与示例。
setTime()java.util.Date类的方法接受长类型的变量，该变量表示从纪元时间（1970年1月1日00：00：00.000GMT）到所需时间的毫秒数，并将指定的时间值设置为当前的Date对象。
//设定时间 date.setTime(time_value_in_long);
示例
让我们使用CREATE语句在MySQL数据库中创建一个带有名称调度的表，如下所示：
CREATE TABLE dispatches( ProductName VARCHAR(255), CustomerName VARCHAR(255), DispatchDate date, DeliveryTime time, Price INT, Location VARCHAR(255));
现在，我们将使用INSERT语句在分派表中插入5条记录-
insert into dispatches values('Key-Board', 'Raja', DATE('2019-09-01'), TIME('11:00:00'), 7000, 'Hyderabad');
insert into dispatches values('Earphones', 'Roja', DATE('2019-05-01'), TIME('11:00:00'), 2000, 'Vishakhapatnam');
insert into dispatches values('Mouse', 'Puja', DATE('2019-03-01'), TIME('10:59:59'), 3000, 'Vijayawada');
insert into dispatches values('Mobile', 'Vanaja', DATE('2019-03-01'), TIME('10:10:52'), 9000, 'Chennai');
insert into dispatches values('Headset', 'Jalaja', DATE('2019-04-06'), TIME('11:08:59'), 6000, 'Goa');以下JDBC示例通过传递所需的值将新记录插入到分派表中。
import java.sql.Connection;
import java.sql.Date;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Time;
public class Date_setTime {
public static void main(String args[]) throws SQLException {
//注册驱动程序
DriverManager.registerDriver(new com.mysql.jdbc.Driver());
//获得连接
String mysqlUrl = "jdbc:mysql://localhost/mydatabase";
Connection con = DriverManager.getConnection(mysqlUrl, "root", "password");
System.out.println("Connection established......");
//实例化时间类
Date date = new Date(0L);
//设定时间
date.setTime(new java.util.Date().getTime());
//创建一个准备好的语句
String query = "INSERT INTO Dispatches VALUES (?, ?, ?, ?, ?, ?)";
PreparedStatement pstmt = con.prepareStatement(query);
pstmt.setString(1, "Watch");
pstmt.setString(2, "Rajan");
pstmt.setDate(3, date);
pstmt.setTime(4, new Time(date.getTime()));
pstmt.setInt(5, 4000);
pstmt.setString(6, "Chennai");
pstmt.execute();
System.out.println("Rows inserted ....");
//检索值
Statement stmt = con.createStatement();
ResultSet rs = stmt.executeQuery("select * from dispatches");
while(rs.next()) {
System.out.println("Product Name: "+rs.getString("ProductName"));
System.out.println("Customer Name: "+rs.getString("CustomerName"));
System.out.println("Date Of Dispatch: "+rs.getDate("DispatchDate"));
System.out.println("Delivery Time: "+rs.getTime("DeliveryTime"));
System.out.println("Location: "+rs.getString("Location"));
System.out.println();
}
}
}在此程序中，我们通过将0L传递给其构造函数（纪元时间：1970-01-0105：30：00.0）来实例化Date类，并使用setTime()方法将其时间更改为当前时间。
并且我们正在尝试将此时间值插入此记录的DeliveryTime列下。
输出结果
Connection established...... Rows inserted .... Product Name: Key-Board Customer Name: Raja Date Of Dispatch: 2019-09-01 Delivery Time: 11:00:00 Location: Hyderabad Product Name: Earphones Customer Name: Roja Date Of Dispatch: 2019-05-01 Delivery Time: 11:00:00 Location: Vishakhapatnam Product Name: Mouse Customer Name: Puja Date Of Dispatch: 2019-03-01 Delivery Time: 10:59:59 Location: Vijayawada Product Name: Mobile Customer Name: Vanaja Date Of Dispatch: 2019-03-01 Delivery Time: 10:10:52 Location: Chennai Product Name: Headset Customer Name: Jalaja Date Of Dispatch: 2019-04-06 Delivery Time: 11:08:59 Location: Goa Product Name: Watch Customer Name: Rajan Date Of Dispatch: 2019-03-28 Delivery Time: 17:49:35 Location: Chennai