为什么JBoss 5.1中的ShutdownHook中的java.util.Logger并不总是打印到server.log？
我在JBoss 5.1中有一个EJB3-Timer。
编辑：
ShutdownHook应设置一个标志，doTimeOut（）可以正常终止（否则它将完成作业，并且在此计时器完成之前停止关闭）。
@Stateless
class Timer {
private static Thread hook;
static {
hook = new ShutdownHook();
}
@Timeout
public void doTimeOut(){
//some code
}
private class ShutdownHook implements Runnable(){
Logger.getLogger(ShutdownHook.class.getName()).log(Level.INFO, "MyBEAN.ShutdownHook execute hook " + hook); // Not always printed to log
Logger.getAnonymousLogger().log(Level.INFO, "MyBEAN.ShutdownHook execute hook " + hook); // throwns Exception
System.out.println("MyBEAN.ShutdownHook execute hook " + hook);
[...] // some code
}
}
2011-02-02 09:16:33,120 ERROR [STDERR] Exception in thread "Thread-33"
2011-02-02 09:16:33,122 ERROR [STDERR] java.lang.NullPointerException
2011-02-02 09:16:33,122 ERROR [STDERR] at org.apache.log4j.CategoryKey.<init>(CategoryKey.java:31)
2011-02-02 09:16:33,122 ERROR [STDERR] at org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:261)
2011-02-02 09:16:33,122 ERROR [STDERR] at org.apache.log4j.Hierarchy.getLogger(Hierarchy.java:242)
2011-02-02 09:16:33,122 ERROR [STDERR] at org.apache.log4j.LogManager.getLogger(LogManager.java:188)
2011-02-02 09:16:33,122 ERROR [STDERR] at org.apache.log4j.Logger.getLogger(Logger.java:104)
2011-02-02 09:16:33,122 ERROR [STDERR] at org.jboss.logbridge.LogBridgeHandler.publish(LogBridgeHandler.java:71)
2011-02-02 09:16:33,122 ERROR [STDERR] at java.util.logging.Logger.log(Unknown Source)
2011-02-02 09:16:33,122 ERROR [STDERR] at java.util.logging.Logger.doLog(Unknown Source)
2011-02-02 09:16:33,122 ERROR [STDERR] at java.util.logging.Logger.log(Unknown Source)
2011-02-02 09:16:33,122 ERROR [STDERR] at com.demo.MyBEAN$ShutdownHook.run(MyBEAN.java:202)
没有找到相关结果
已邀请:
2 个回复
襄挟款籍
@Stateless class Timer { @Timeout public void doTimeOut(){ //some code } @PreDestroy public void onShutdown() { Logger.getLogger(Timer.class.getName()).log(Level.INFO, "MyBEAN.ShutdownHook execute hook " + hook); [...] // some code } }窝头菊
变量（通常是这样），然后在关闭钩子中引用该实例。 但即便如此，你也不会100％确定它会被运行（除非JBoss使用一些技巧来保证）。