java - Java 中是否有替代 Thread.sleep 的方法

Question

这是我的代码

while (true) {
    try {
        Thread.sleep(5 * 60 * 1000);
        processData();// data processing job
    } catch (InterruptedException e) {
        SystemMessageBillPay.getInstance().writeMessage("ERROR: CEB.run() - " + e.getMessage());
    } catch (NumberFormatException e) {
        SystemMessageBillPay.getInstance().writeMessage("ERROR: CEB.run() - " + e.getMessage());
    }
}

为此

"Thread.sleep(5 * 60 * 1000);"

代码检查器发出警告

"Invoking Thread.sleep in loop can cause performance problems"

防止这个警告的代码应该是什么

Answer 1

对于 1.8，您还可以使用:

import java.util.concurrent.locks.LockSupport;

LockSupport.parkNanos(TimeUnit.MILLISECONDS.toNanos(1000));

根据 Javadoc:

Disables the current thread for thread scheduling purposes, for up to the specified waiting time, unless the permit is available.

好的部分是，它的签名不会抛出已检查的异常。所以你不必 try catch (不像 Thread.sleep，它需要处理它的 InterruptedException)。当然，各有各的用途。