ASP. Net cache cache usage

1. Cache data temporary data

2. Set the cache

 

 System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            // Unexpired cache
            objCache.Insert("WEI", "158662255");
            // Set up 10 Seconds cache
            objCache.Insert("WEI2", "dsfsdsxs", null, DateTime.MaxValue, new TimeSpan(0,0,10), System.Web.Caching.CacheItemPriority.NotRemovable, null);
           
            // Cache to file （ Fail to succeed ）
            object errorData="sdfsjcmsjcslcfmsfsl";
            CacheDependency fileDependency = new CacheDependency(@"C:\Users\Administrator\source\repos\ConsoleApp1\errors.txt");
            objCache.Insert("ERROR_INFO", errorData, fileDependency);

            // Key value dependent cache , A modification will expire. All values of the user information contain ： Number , full name , Address, etc , If the user number changes, then cache invalid , In this case , The user's basic information depends on the user number .
            string[] relatedKeys = new string[1];
            relatedKeys[0] = "EMP_NUM";
            CacheDependency keyDependency = new CacheDependency(null, relatedKeys);
            objCache["EMP_NUM"] = 5435;
            objCache.Insert("EMP_NAME", "Shubhabrata", keyDependency);
            objCache.Insert("EMP_ADDR", "Bhubaneswar", keyDependency);
            objCache.Insert("EMP_SAL", "5555USD", keyDependency);
 

3. Read cache

            // Read cache
            System.Web.Caching.Cache objCache2 = HttpRuntime.Cache;
            var ddd = objCache2["WEI"];
            var ddd2 = objCache2["WEI2"];
            var ddd3 = objCache2["ERROR_INFO"];
            return new string[] { "value1", "value2" };