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punctuation\">[<\/span><span class=\"token function\">HttpPost<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;upload-chunk&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">]<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">async<\/span> <span class=\"token return-type class-name\">Task<\/span> <span class=\"token function\">UploadChunk<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">IFormFile<\/span> file<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">string<\/span><\/span> fileHash<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> chunkIndex<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">try<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> chunkPath <span class=\"token operator\">&#061;<\/span> Path<span class=\"token punctuation\">.<\/span><span class=\"token function\">Combine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;uploads&#034;<\/span><span class=\"token punctuation\">,<\/span> fileHash<span class=\"token punctuation\">,<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">chunkIndex<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">.part&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> <span class=\"token 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class=\"token keyword\">return<\/span> <span class=\"token function\">Ok<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">new<\/span> <span class=\"token punctuation\">{<\/span> success <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5176\u5b9e\u53ef\u80fd\u6ca1\u6210\u529f&#xff0c;\u5c31\u50cf\u4f60\u4ee5\u4e3a\u62a2\u5230\u4e86\u7cae\u7968\u7ed3\u679c\u53d1\u73b0\u662f\u53bb\u5e74\u7684<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token function\">StatusCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">500<\/span><span class=\"token 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Core\u8fd8\u5728\u50bb\u4e4e\u4e4e\u5730\u63d2\u5165\u5206\u7247\u8bb0\u5f55&#xff08;\u5c31\u50cf\u4f60\u4e3e\u7740\u624b\u673a\u627e\u4fe1\u53f7\u65f6\u5bf9\u65b9\u5df2\u7ecf\u6302\u65ad&#xff09;<\/li>\n<li>\u5408\u5e76\u6587\u4ef6\u65f6&#xff0c;FileStream\u76f4\u63a5\u5403\u6389\u4e864G\u5185\u5b58&#xff08;\u5c31\u50cf\u4f60\u8bd5\u56fe\u628a\u6574\u7897\u70ed\u5e72\u9762\u4e00\u53e3\u541e\u4e0b&#xff09;<\/li>\n<h4>\u7b2c\u56db\u5e55&#xff1a;\u7edd\u5730\u6c42\u751f\u65b9\u6848&#xff08;\u5149\u8c37\u7279\u4f9b\u7248&#xff09;<\/h4>\n<p>\u7ecf\u8fc7\u4e09\u5929\u4e09\u591c\u7684\u8c37\u6b4c\u641c\u7d22&#xff08;\u548c\u4e24\u5305\u7cbe\u6b66\u9e2d\u8116&#xff09;&#xff0c;\u6211\u5236\u5b9a\u4e86\u65b0\u65b9\u6848&#xff1a;<\/p>\n<p>\u524d\u7aef\u6539\u9020\u8ba1\u5212&#xff08;\u6c49\u5473\u4f18\u5316&#xff09;&#xff1a;<\/p>\n<li>\u5f03\u7528WebUploader&#xff0c;\u6539\u7528uppy.io&#xff08;\u81f3\u5c11\u6587\u6863\u662f2024\u5e74\u7684&#xff0c;\u4e0d\u50cf\u67d0\u4e9b\u6b66\u6c49\u516c\u4ea4\u65f6\u523b\u8868&#xff09;<\/li>\n<li>\u5b9e\u73b0\u771f\u6b63\u7684\u65ad\u70b9\u7eed\u4f20&#xff1a;<span class=\"token comment\">\/\/ \u7528IndexedDB\u5b58\u50a8\u5df2\u4e0a\u4f20\u5206\u7247&#xff08;\u6b66\u6c49\u65b9\u8a00\u7248\u6ce8\u91ca&#xff09;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> dbPromise <span class=\"token operator\">&#061;<\/span> idb<span class=\"token punctuation\">.<\/span><span class=\"token function\">open<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;UploadDB&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token parameter\">upgradeDB<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  upgradeDB<span class=\"token punctuation\">.<\/span><span class=\"token function\">createObjectStore<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;chunks&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token literal-property property\">keyPath<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;id&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5c31\u50cf\u7ed9\u6bcf\u7247\u9e2d\u8116\u7f16\u53f7<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u6dfb\u52a0\u5fc3\u8df3\u68c0\u6d4b&#xff0c;\u9632\u6b62\u6d4f\u89c8\u5668\u5047\u6b7b&#xff08;\u5c31\u50cf\u9632\u6b62\u516c\u4ea4\u53f8\u673a\u7a81\u7136\u6253\u778c\u7761&#xff09;<\/li>\n<li>\u7528WebSocket\u5b9e\u65f6\u663e\u793a\u4e0a\u4f20\u901f\u5ea6&#xff08;\u867d\u7136.NET Core\u7684SignalR\u66f4\u9999&#xff0c;\u4f46\u5b66\u4e0d\u52a8\u554a&#xff0c;\u5c31\u50cf\u5b66\u4e0d\u4f1a\u6b66\u6c49\u8bdd\u7684\u513f\u5316\u97f3&#xff09;<\/li>\n<p>\u540e\u7aef\u81ea\u6551\u6307\u5357&#xff08;\u4e1c\u6e56\u7279\u4f9b&#xff09;&#xff1a;<\/p>\n<li>\u7528MemoryMappedFile\u66ff\u4ee3\u666e\u901aFileStream\u5904\u7406\u5927\u6587\u4ef6&#xff1a;<span class=\"token comment\">\/\/ \u5408\u5e76\u5206\u7247\u65f6\u4e0d\u518d\u5403\u5185\u5b58&#xff08;\u5c31\u50cf\u4e0d\u518d\u628a\u6574\u7897\u70ed\u5e72\u9762\u6c64\u559d\u5149&#xff09;<\/span><br \/>\n<span class=\"token keyword\">using<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> mmf <span class=\"token operator\">&#061;<\/span> MemoryMappedFile<span class=\"token punctuation\">.<\/span><span class=\"token function\">CreateFromFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;final.dat&#034;<\/span><span class=\"token punctuation\">,<\/span> FileMode<span class=\"token punctuation\">.<\/span>Create<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token keyword\">int<\/span><\/span> i <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> totalChunks<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&#043;&#043;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> chunkPath <span class=\"token operator\">&#061;<\/span> Path<span class=\"token punctuation\">.<\/span><span class=\"token function\">Combine<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;uploads&#034;<\/span><span class=\"token punctuation\">,<\/span> fileHash<span class=\"token punctuation\">,<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">i<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">.part&#034;<\/span><\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5185\u5b58\u6620\u5c04\u6587\u4ef6\u64cd\u4f5c&#8230;&#xff08;\u5c31\u50cf\u5206\u6279\u6b21\u8fc7\u957f\u6c5f\u5927\u6865&#xff09;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span>\n <\/li>\n<li>\u6dfb\u52a0\u901f\u7387\u9650\u5236\u4e2d\u95f4\u4ef6&#xff1a;<span class=\"token comment\">\/\/ \u9632\u6b62\u5ba2\u6237\u7aef\u75af\u72c2\u4e0a\u4f20&#xff08;\u5c31\u50cf\u9650\u5236\u8fc7\u65e9\u644a\u4e3b\u4e0d\u80fd\u540c\u65f6\u716e20\u7897\u70ed\u5e72\u9762&#xff09;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">Use<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">async<\/span> <span class=\"token punctuation\">(<\/span>context<span class=\"token punctuation\">,<\/span> next<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> clientIp <span class=\"token operator\">&#061;<\/span> context<span class=\"token punctuation\">.<\/span>Connection<span class=\"token punctuation\">.<\/span>RemoteIpAddress<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token class-name\"><span class=\"token keyword\">var<\/span><\/span> rateLimitKey <span class=\"token operator\">&#061;<\/span> <span class=\"token interpolation-string\"><span class=\"token string\">$&#034;upload:<\/span><span class=\"token interpolation\"><span class=\"token punctuation\">{<\/span><span class=\"token expression language-csharp\">clientIp<\/span><span class=\"token punctuation\">}<\/span><\/span><span class=\"token string\">&#034;<\/span><\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u7b80\u5355\u7684Redis\u8ba1\u6570\u5668&#xff08;\u5b9e\u9645\u7528StackExchange.Redis&#xff0c;\u5c31\u50cf\u7528\u5468\u9ed1\u9e2d\u7684\u771f\u7a7a\u5305\u88c5&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>redis<span class=\"token punctuation\">.<\/span><span class=\"token function\">Increment<\/span><span class=\"token punctuation\">(<\/span>rateLimitKey<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&gt;<\/span> <span class=\"token number\">100<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        context<span class=\"token punctuation\">.<\/span>Response<span class=\"token punctuation\">.<\/span>StatusCode <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">429<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">await<\/span> context<span class=\"token punctuation\">.<\/span>Response<span class=\"token punctuation\">.<\/span><span class=\"token function\">WriteAsync<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u6162\u70b9&#xff0c;\u5144\u5f1f&#xff01;\u6b66\u6c49\u8bdd\u53eb&#039;\u83ab\u614c&#039;&#xff01;&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token keyword\">await<\/span> <span class=\"token function\">next<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<li>\u5f02\u6b65\u5904\u7406\u6587\u4ef6\u5408\u5e76&#xff1a;<span class=\"token comment\">\/\/ \u7528Hangfire\u540e\u53f0\u4efb\u52a1&#xff08;\u5c31\u50cf\u8ba9\u5916\u5356\u5c0f\u54e5\u5148\u9001\u5176\u4ed6\u5355&#xff09;<\/span><br \/>\n_backgroundJobClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">Schedule<\/span><span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token function\">MergeFile<\/span><span class=\"token punctuation\">(<\/span>fileHash<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\n    TimeSpan<span class=\"token punctuation\">.<\/span><span class=\"token function\">FromMinutes<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token comment\">\/\/ \u5ef6\u8fdf1\u5206\u949f\u5408\u5e76&#xff0c;\u7ed9\u524d\u7aef\u65f6\u95f4\u4f20\u5b8c\u6240\u6709\u5206\u7247&#xff08;\u5c31\u50cf\u7b49\u516c\u4ea4\u65f6\u5148\u62bd\u6839\u70df&#xff09;<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<p>\u6570\u636e\u5e93\u4f18\u5316&#xff08;\u6237\u90e8\u5df7\u65b9\u6848&#xff09;&#xff1a;<\/p>\n<li>\u6539\u7528SQL Server\u7684FILESTREAM\u5b58\u50a8\u5927\u6587\u4ef6\u5143\u6570\u636e&#xff08;\u5c31\u50cf\u628a\u9e2d\u8116\u771f\u7a7a\u5305\u88c5&#xff09;<\/li>\n<li>\u6dfb\u52a0Redis\u7f13\u5b58\u5f53\u524d\u4e0a\u4f20\u4efb\u52a1&#xff08;\u5c31\u50cf\u7528\u7f8e\u56e2\u5916\u5356\u770b\u54ea\u5bb6\u70ed\u5e72\u9762\u6392\u961f\u4eba\u5c11&#xff09;<\/li>\n<li>\u5bf9\u5927\u6587\u4ef6\u8bb0\u5f55\u91c7\u7528&#034;\u8f6f\u5220\u9664&#034;\u7b56\u7565&#xff08;\u6807\u8bb0\u4e3a\u5220\u9664\u4f46\u4e0d\u771f\u5220&#xff0c;\u6015\u5ba2\u6237\u53cd\u6094&#xff0c;\u5c31\u50cf\u4f60\u5988\u8bf4&#034;\u8fd9\u7897\u9762\u4f60\u5403\u4e0d\u5403&#xff1f;\u4e0d\u5403\u6211\u5012\u4e86&#034;\u4f46\u5b9e\u9645\u4e0d\u4f1a\u5012&#xff09;<\/li>\n<li>\u5206\u8868\u7b56\u7565&#xff1a;<span class=\"token comment\">&#8212; \u6309\u5e74\u4efd\u5206\u8868&#xff08;\u5c31\u50cf\u628a\u4e0d\u540c\u5b63\u8282\u7684\u8863\u670d\u5206\u5f00\u653e&#xff09;<\/span><br \/>\n<span class=\"token keyword\">CREATE<\/span> <span class=\"token keyword\">TABLE<\/span> UploadTasks_2024 <span class=\"token punctuation\">(<\/span><br \/>\n    <span class=\"token comment\">&#8212; \u7ed3\u6784\u540c\u4e3b\u8868<\/span><br \/>\n<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<h4>\u7ec8\u5e55&#xff1a;\u6d4b\u8bd5\u65e5\u7684\u75af\u72c2&#xff08;\u5149\u8c37\u9650\u5b9a\u7248&#xff09;<\/h4>\n<p>\u5f53\u5ba2\u6237\u7ec8\u4e8e\u53d1\u6765\u6d4b\u8bd5\u6587\u4ef6\u65f6&#xff0c;\u6211\u7684\u76d1\u63a7\u9762\u677f\u662f\u8fd9\u6837\u7684&#xff1a;<\/p>\n<ul>\n<li>IIS\u9519\u8bef\u65e5\u5fd7&#xff1a;\u6bcf\u5206\u949f\u65b0\u589e5\u6761&#034;Connection_Abandoned_By_ReqQueue&#034;&#xff08;\u5c31\u50cf\u6bcf\u5206\u949f\u67095\u4e2a\u4e58\u5ba2\u5728\u5149\u8c37\u5e7f\u573a\u8ff7\u8def&#xff09;<\/li>\n<li>.NET Core\u5185\u5b58\u5360\u7528\u7a81\u78341.8G&#xff08;\u5c31\u50cf\u4f60\u8bd5\u56fe\u628a\u6574\u4e2a\u6237\u90e8\u5df7\u7684\u5c0f\u5403\u585e\u8fdb\u80cc\u5305&#xff09;<\/li>\n<li>SQL 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