FileLock

最新推荐文章于 2025-07-15 14:54:49 发布

原创最新推荐文章于 2025-07-15 14:54:49 发布 · 749 阅读

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#FileLock

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RandomAccessFile raf = new RandomAccessFile(file, "rw");
raf.setLength(raf.length());
FileChannel ch = raf.getChannel();

FileLock lock = null;
while (true) {
// try { lock = ch.tryLock(); } catch (Exception e) {}
// try { lock = ch.lock(); } catch (Exception e) {}
	try {
	    lock = ch.lock(0, Long.MAX_VALUE, true);
	} catch (Exception e) {}

	if (null == lock) {
		Thread.sleep(500);
	} else {
		break;
	}
//	这边读写操作
}