Java 中的 LogRecord getInstant()方法，带示例

原文:https://www . geesforgeks . org/log record-getinstant-method-in-Java-with-examples/

Java . lang . reflect . log record的 getInstant() 方法用于获取事件发生的这个瞬间，这有助于记录事件的瞬间。

语法:

public Instant getInstant()

参数:此方法不接受任何内容。

返回:此方法返回事件发生的瞬间。

下面的程序说明了 getInstant()方法: 程序 1:

// Java program to illustrate getInstant() method

import java.time.Instant;
import java.util.logging.Level;
import java.util.logging.LogRecord;

public class GFG {

    public static void main(String[] args)
    {

        // Create LogRecord object
        LogRecord logRecord = new LogRecord(
            Level.parse("800"),
            "Hi Logger");
        logRecord
            .setInstant(
                Instant.parse(
                    "1994-04-12T11:54:23.89Z"));

        // get the instant time
        Instant instant = logRecord.getInstant();

        System.out.println("Event Time = "
                           + instant.toString());
    }
}

Output:

Event Time = 1994-04-12T11:54:23.890Z

程序 2:

// Java program to illustrate getInstant() method

import java.time.Instant;
import java.util.logging.Level;
import java.util.logging.LogRecord;

public class GFG {

    public static void main(String[] args)
    {

        // Create LogRecord object
        LogRecord logRecord = new LogRecord(
            Level.parse("800"),
            "Hi Logger");
        logRecord.setInstant(Instant.now());

        // get the instant time
        Instant instant = logRecord.getInstant();

        System.out.println("Event Time = "
                           + instant.toString());
    }
}

Output:

Event Time = 2019-10-20T19:41:57.803594Z

参考文献:https://docs . Oracle . com/javase/10/docs/API/Java/util/logging/logrecord . html # getInstant()

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