threadLocal 간단한 사용
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threadLocal 간단한 사용
간단한 코드와 설명은 다음과 같습니다.
public class MyThreadLocal {
// threadLocal
static ThreadLocal threadLocal = new ThreadLocal<>();
public static void main(String[] args) {
new Thread(() -> {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(threadLocal.get());
}).start();
new Thread(() -> {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
}
threadLocal.set(new Person());
}).start();
}
static class Person {
String name = "888888888";
}
}
/*
"C:\Program Files\Java\jdk1.8.0_201\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.6\lib\idea_rt.jar=58329:C:\Program Files\JetBrains\IntelliJ IDEA 2018.3.6\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_201\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext
ashorn.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_201\jre\lib\rt.jar;G:\ass\target\classes;H:\maven_repository\org\apache\thrift\libthrift\0.9.3\libthrift-0.9.3.jar;H:\maven_repository\org\slf4j\slf4j-api\1.7.12\slf4j-api-1.7.12.jar;H:\maven_repository\org\apache\httpcomponents\httpclient\4.4.1\httpclient-4.4.1.jar;H:\maven_repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;H:\maven_repository\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;H:\maven_repository\org\apache\httpcomponents\httpcore\4.4.1\httpcore-4.4.1.jar" ava.service.demo.MyThreadLocal
null
Process finished with exit code 0
set , get
*/