Java LogRecord getInstant()用法及代碼示例

java.lang.reflect.LogRecord的getInstant()方法用於獲取事件發生的瞬間，這有助於記錄日誌事件。

用法:

public Instant getInstant()

參數：此方法不接受任何內容。

返回：此方法返回事件發生的瞬間。

以下示例程序旨在說明getInstant()方法：
示例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()); 
    } 
}

輸出：

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

示例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()); 
    } 
}

輸出：

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

參考文獻： https://docs.oracle.com/javase/10/docs/api/java/util/logging/LogRecord.html#getInstant()

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注：本文由純淨天空篩選整理自AmanSingh2210大神的英文原創作品 LogRecord getInstant() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。