跨2个应用程序访问单个文件 [英] Access single file across 2 application

问题描述

我有一个要求，其中我必须跨2个应用程序读取/写入单个xml文件，其中一个是Windows窗体应用程序，另一个是Windows服务。是否有任何最佳方法或设计模式定义来实现这一点，这将确保当两个应用程序都尝试访问此文件时没有死锁。在Windows服务方面，我想到了根据文件的最后更新时间信息使用事件驱动机制。

解决方案

这是一个坏主意有多个程序同时写入同一个文件。



如果你只是阅读那么你可以：



1）首先将整个文件读入内存然后使用 File.ReadAllText（）进行处理（如果它足够小）

2 ）以共享读取模式打开文件： http://msdn.microsoft .com / zh-CN / library / y973b725％28v = vs.110％29.aspx [ ^ ]



要检测文件更改，请使用 FileSystemWatcher ： FileSystemWatcher - Pure Chaos（Part 1 of 2） [ ^ ]

你可以试试这个： http://msdn.microsoft.com/en-us/library/ee617386(v = sql.110）.aspx [ ^ ]



另一种方式...



http://blog.markedup.com/2014/07/easy-mode-synchronizing-multiple-processes-with-file-locks/ [ ^ ]

I have a requirement wherein i have to read/write a single xml file across 2 application, one of which is a windows form application and others an windows service. Is there any best approach or a design pattern defined to achieve this, which will make sure there is no deadlock when both apps try to access this file. On the windows service side, I thought of making use of event driven mechanism based upon the "last updated time" info of the file.

解决方案

It's a bad idea to have multiple programs write to the same file at the same time.

If you are only reading then you can :

1) Read the entire file to memory first then process (if it is small enough) with File.ReadAllText()
2) Open the file in shared read mode : http://msdn.microsoft.com/en-us/library/y973b725%28v=vs.110%29.aspx[^]

To detect file changes use the FileSystemWatcher : FileSystemWatcher - Pure Chaos (Part 1 of 2)[^]

You can try this : http://msdn.microsoft.com/en-us/library/ee617386(v=sql.110).aspx[^]

Another Way...

http://blog.markedup.com/2014/07/easy-mode-synchronizing-multiple-processes-with-file-locks/[^]

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