UC知道各位高手帮忙解释下HttpApplicationFactory
来源：百度知道 编辑：UC知道 时间：2024/06/22 02:43:22
代码如下
1internal static IHttpHandler GetApplicationInstance(HttpContext context)
2{
3 if (HttpApplicationFactory._customApplication != null)
4 {
5 return HttpApplicationFactory._customApplication;
6 }
7 if (HttpDebugHandler.IsDebuggingRequest(context))
8 {
9 return new HttpDebugHandler();
10 }
11 if (!HttpApplicationFactory._theApplicationFactory._inited)
12 {
13 lock (HttpApplicationFactory._theApplicationFactory)
14 {
15 if (!HttpApplicationFactory._theApplicationFactory._inited)
16 {
17 HttpApplicationFactory._theApplicationFactory.Init(context);
18 HttpApplicationFactory._theApplicationFactory._inited = true;
19 }
20 }
21 }
22 return HttpApplicationFactory._theApplicat
1internal static IHttpHandler GetApplicationInstance(HttpContext context)
2{
3 if (HttpApplicationFactory._customApplication != null)
4 {
5 return HttpApplicationFactory._customApplication;
6 }
7 if (HttpDebugHandler.IsDebuggingRequest(context))
8 {
9 return new HttpDebugHandler();
10 }
11 if (!HttpApplicationFactory._theApplicationFactory._inited)
12 {
13 lock (HttpApplicationFactory._theApplicationFactory)
14 {
15 if (!HttpApplicationFactory._theApplicationFactory._inited)
16 {
17 HttpApplicationFactory._theApplicationFactory.Init(context);
18 HttpApplicationFactory._theApplicationFactory._inited = true;
19 }
20 }
21 }
22 return HttpApplicationFactory._theApplicat
HttpApplicationFactory 控制着一个应用程序池，也就是HttpApplication，当第一个HTTP请求到达时，会创建N个HttpApplication对象，并选择其中一个来响应HTTP，处理后再将这个HttpApplication释放到池中，下一个HTTP请求到达时，会查看池中是否存在没有被使用的HttpApplication，如果有则取出，如果没有再创建N个。