AutoHotkey & Java: Calendar will take your given milliseconds as UTC, then offset with your timezone when you do: Calendar.getTime().

 
Senarior:
Come across to integrate AutoHotkey & Java.

getting timestamp in milliseconds from AutoHotkey, then pass into Java process.

Found out:

Calendar will offset your milliseconds(a or b, which is UTC timstamp) with your timezone.

Given as below:

a = Calendar.getTime()

&

b = System.currentTimeMillis()

&

EpochTimestamp_Now_UTC := A_NowUTC

EnvSub, EpochTimestamp_Now_UTC, 19700101000000, Seconds

Milliseconds_Now_UTC := EpochTimestamp_Now_UTC * 1000 + A_MSec

c := Milliseconds_Now_UTC 

Billson@20210415_pm121738 : System.currentTimeMillis(); = Calendar.getInstance().getTimeInMillis(); = A_NowUTC in EpochTimestamp = EpochTimestamp_Now_UTC

Three above(a, b, c) are identical, and they will hold UTC timestamp.

BUT

When u pass back into

Calendar calTmp = Calendar.getInstance();

calTmp.setTimeInMillis(milliseconds);

Sysout#1

calTmp.setTimeInMillis(a);

System.out.println(calTmp.getTime());

Sysout#2

calTmp.setTimeInMillis(c);

System.out.println(calTmp.getTime());

Sysout#1 & Sysout#2 will show your localtime.

Calendar will offset your milliseconds(a or b, which is UTC timstamp) with your timezone.

But not sure happen this offset within which part.

Warning message, Failed to scan (java.io.FileNotFoundException) from: org.apache.tomcat.util.scan.StandardJarScanner

At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.|org.apache.jasper.servlet.TldScanner



Found below config is working:



Reference URL: https://stackoverflow.com/a/50743050

you can add  server.tomcat.additional-tld-skip-patterns=*.jar in application.propertiesfile or  server: tomcat: additional-tld-skip-patterns: '*.jar' in application.ymlfile.

Refer : The Jar Scanner Component、The official reply.

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answered Jun 7 '18 at 13:54

zmingchun

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