Java Timestamp.getTime作用

`Timestamp.getTime()` 方法的作用是获取 `Timestamp` 对象所表示的时间值，返回一个 `long` 类型的数值，该数值表示自 1970 年 1 月 1 日 00:00:00 GMT 起的毫秒数。

通常情况下，我们可以使用 `Timestamp` 类来表示数据库中的时间戳，并使用 `getTime()` 方法将 `Timestamp` 对象转化为 long 类型的毫秒数，以便进行时间上的比较或计算。

以下是一个示例代码：

// 创建一个 Timestamp 对象
Timestamp timestamp = new Timestamp(System.currentTimeMillis());

// 获取 Timestamp 对象所表示的时间值
long ts = timestamp.getTime();

// 输出时间值
System.out.println("Timestamp value in milliseconds: " + ts);

在这个示例中，我们首先使用当前的系统时间创建了一个 `Timestamp` 对象，然后调用 `getTime()` 方法获取它所表示的时间值，并将其转换为毫秒数后输出。

相关问题

Java Timestamp.getTime

The `Timestamp.getTime()` method in Java returns the number of milliseconds since January 1, 1970, 00:00:00 GMT represented by this `Timestamp` object. This method returns a `long` value representing the time in milliseconds.

Here's the method signature:

public long getTime()

And here's how you can use it:

// Create a new Timestamp object
Timestamp timestamp = new Timestamp(System.currentTimeMillis());

// Get the timestamp value as a long
long ts = timestamp.getTime();

// Print the timestamp value
System.out.println("Timestamp value in milliseconds: " + ts);

In this example, we create a new `Timestamp` object using the current system time, and then call the `getTime()` method to get the timestamp value as a `long`.

java get timestamp_Java Timestamp.getTime方法代码示例

Sure! Here is a code example of getting the timestamp in Java using the `Timestamp.getTime()` method:

import java.sql.Timestamp;

public class TimestampExample {
    public static void main(String[] args) {
        // Create a new Timestamp object
        Timestamp timestamp = new Timestamp(System.currentTimeMillis());

        // Get the timestamp value as a long
        long ts = timestamp.getTime();

        // Print the timestamp value
        System.out.println("Timestamp value in milliseconds: " + ts);
    }
}

In this example, we first create a new `Timestamp` object using the current system time. We then call the `getTime()` method on the `Timestamp` object to get the timestamp value as a long. Finally, we print the timestamp value to the console.