Java开发网 - 如何在写一个文件拒绝别的进程访问此文件？

Topic: 如何在写一个文件拒绝别的进程访问此文件？

1.如何在写一个文件拒绝别的进程访问此文件？	Copy to clipboard
Posted by: bluebangbang Posted on: 2004-04-20 14:07

2.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: bluebangbang]	Copy to clipboard
Posted by: jigsaw Posted on: 2004-04-20 15:35 如果文件不是很大可以读入内存然后把这个文件删除处理完毕后写回硬盘

3.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: jigsaw]	Copy to clipboard
Posted by: PrimeJava Posted on: 2004-04-20 17:06 jigsaw wrote: 如果文件不是很大可以读入内存然后把这个文件删除处理完毕后写回硬盘如果遇到突然停电那不是糟了！

4.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: bluebangbang]	Copy to clipboard
Posted by: tian_cookie Posted on: 2004-04-20 17:33 用NIO可以得到文件锁

5.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: bluebangbang]	Copy to clipboard
Posted by: floater Posted on: 2004-04-20 21:49 This is more of a system task because we have no control of other threads. Try to rename/hide this file, instead.

6.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: bluebangbang]

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Posted by: dorrenchen
Posted on: 2004-04-20 23:02

assuming all threads access the file the same way and you write all those threads. Then you can do it like how microsoft word works. For mydoc.txt, create a lock file ~mydoc.txt, which stores lock info (like whether it's currently locked and who, etc). Then check that lock file before accessing the actual file. After current user closed file, delete lock file.

That's how I would do it.

7.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: bluebangbang]	Copy to clipboard
Posted by: bluebangbang Posted on: 2004-04-21 16:02 Thanks for all

8.Re:如何在写一个文件拒绝别的进程访问此文件？ [Re: bluebangbang]	Copy to clipboard
Posted by: huangjiacai Posted on: 2004-05-04 12:55 用线程同步机制可以使一个线程在访问一个文件是防止其他线程中断它直到那线程stop的时候才可被其他线程访问