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多线程写入文件的行为

[英]Behaviour in file writing by multiple threads

原文 2011-09-22 07:59:58 2 2 java/ multithreading/ file

Many threads are writing StringBuffer to same file. 许多线程将StringBuffer写入同一文件。 StringBuffer contains around 100 lines. StringBuffer包含大约100行。 What is the output in file if multiple threads write to same file. 如果多个线程写入同一文件，文件中的输出是什么。 Is each output from different threads mixup in file or they appear sequentially. 是来自不同线程混合的每个输出在文件中还是顺序出现。

2 个解决方案

all of the above plus an exception could be thrown on one or more of the threads 以上所有内容以及一个或多个线程上可能引发异常

Without some sort of synchronisation between the threads the result is non deterministic. 如果线程之间没有某种同步，则结果是不确定的。

The data is likely to appear in the order it is written. 数据可能会按照写入顺序出现。 However, unless you control this, that order is likely to be somewhat random. 但是，除非您控制此顺序，否则该顺序可能会有些随机。

Using multi-threads is also likely to be much slower, esp for such a small file. 使用多线程也可能会慢很多，尤其是对于这么小的文件。 Its could be as many times slower as you have threads. 它的速度可能是线程的数倍。

使用多线程写入文件 - Writing a file using multiple threads

如何同步写入文件的多个线程 - How to synchronize multiple threads writing into a file

线程和文件写入 - Threads and file writing

多个线程同时写入集合 - Multiple threads writing in a collection concurrently

多个线程写入一台服务器 - multiple threads writing to one server

两个线程写入同一个文件 - Two threads writing to the same file

使用套接字和线程写文件 - Writing a file using sockets and threads

与使用多个线程编写自己的文件下载器有关的问题 - Questions related to writing your own file downloader using multiple threads java

搜索具有多个线程的文件 - search for a file with multiple threads

通过多个线程读取文件 - Reading a file by multiple threads

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相关问题 使用多线程写入文件 - Writing a file using multiple threads 如何同步写入文件的多个线程 - How to synchronize multiple threads writing into a file 线程和文件写入 - Threads and file writing 多个线程同时写入集合 - Multiple threads writing in a collection concurrently 多个线程写入一台服务器 - multiple threads writing to one server 两个线程写入同一个文件 - Two threads writing to the same file 使用套接字和线程写文件 - Writing a file using sockets and threads 与使用多个线程编写自己的文件下载器有关的问题 - Questions related to writing your own file downloader using multiple threads java 搜索具有多个线程的文件 - search for a file with multiple threads 通过多个线程读取文件 - Reading a file by multiple threads

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