Question

在对部署在tomcat 7上的旧版Java Spring Maven项目进行调查时，日志如下所示-

2018-08-29 18：16：42：471 +0600 [http-bio-8080-exec-494] [错误]

要求使数字神秘化

exec-

那么，基本上“ exec”的含义是什么？在上述情况下为 494 。

Answer 1

这是tomcat中的线程池生成的线程ID号。真正的问题是不同的，既然您知道内部信息，那么内部信息的价值是什么？我假设接近零...

Answer 2

很可能是自定义ThreadFactory生成的线程ID，就像：

Executor executor = Executors.newFixedThreadPool(4, new ThreadFactory() {
    AtomicInteger threadId = new AtomicInteger(0);
    @Override
    public Thread newThread(Runnable r) {
        return new Thread(r, "http-bio-8080-exec-" + threadId.getAndIncrement());   // custom a thread factory 
    }
});

IntStream.range(0, 10).forEach(value -> {
    executor.execute(() -> {    
        System.out.println(Thread.currentThread().getName());   // print thread name
        try {
            Thread.sleep(100);
        } catch (Exception e) {

        }
    });
});

输出：

http-bio-8080-exec-0
http-bio-8080-exec-1
http-bio-8080-exec-2
http-bio-8080-exec-3
http-bio-8080-exec-0
http-bio-8080-exec-3
http-bio-8080-exec-1
http-bio-8080-exec-2
http-bio-8080-exec-0
http-bio-8080-exec-3

“ [http-bio-8080-exec-494] [ERROR]”中exec后的数字是什么意思？

2 个答案: