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(C#) Fetch Web Pages from Local CacheDemonstrates how to keep a local cache to avoid re-fetching web pages. Note: This example requires Chilkat v9.5.0.91 or later.
// This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.Http http = new Chilkat.Http(); // Define a cache directory and set the number of levels based on the anticipated size of the cache. http.AddCacheRoot("c:/AAWorkarea/httpCache/"); // up to 256 sub-directories under the cache root will be created as needed to hold cached GET's. http.NumCacheLevels = 1; // Tell the http object to fetch from the cache if possible. http.FetchFromCache = true; // Also tell the http object to update the cache with newly fetched pages. http.UpdateCache = true; // This HTTP GET should result in a cache file getting created. string html = http.QuickGetStr("https://www.google.com/"); if (http.LastMethodSuccess == false) { Debug.WriteLine(http.LastErrorText); return; } // The 1st GET was not from cache: Debug.WriteLine("Fetched from cache: " + Convert.ToString(http.LastFromCache)); // Fetching again will cause the page to be delivered from our local cache. html = http.QuickGetStr("https://www.google.com/"); if (http.LastMethodSuccess == false) { Debug.WriteLine(http.LastErrorText); return; } // The 2nd GET is from cache: Debug.WriteLine("Fetched from cache: " + Convert.ToString(http.LastFromCache)); |
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