本文介绍了许多用户无法同时访问文本文件的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我已经创建了一个文本文件，并使用c＃添加页面名称，IP地址，页面引用。我使用这种方式来获取有多少用户访问我的网页。我的代码如下：
i have create a text file and add page name, ip address, page referrer using c#.I use this way to get how many user visit my webpage. my code is below:
public void createTextFile()
{
string path = @"D:\testFile.txt";
// This text is added only once to the file.
if (!File.Exists(path))
{
// Create a file to write to.
string textSt = ipaddress+pagename;
using (StreamWriter sw = File.CreateText(path))
{
sw.WriteLine(textSt );
}
}
else
{
using (StreamWriter sw = File.AppendText(path))
{
sw.WriteLine(textSt );
}
}
}
i调用上面的函数在page_load（）函数中的每个页面中都有效。但是当许多用户同时点击同一页面时，此时会出现此问题进程无法访问该文件。我怎样才能解决这个问题
i call this above function in every page in page_load() function.it is working.but when many user hit the same page in same time, in that time this problem is shown "The process cannot access the file". how can i solve this problem
推荐答案
System.Object lockThis = new System.Object();
public void createTextFile()
{
lock (lockThis)
{
string path = @"D:\testFile.txt";
// This text is added only once to the file.
if (!File.Exists(path))
{
// Create a file to write to.
string textSt = ipaddress+pagename;
using (StreamWriter sw = File.CreateText(path))
{
sw.WriteLine(textSt );
}
}
else
{
using (StreamWriter sw = File.AppendText(path))
{
sw.WriteLine(textSt );
}
}
}
}
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