{"id":179542,"date":"2024-11-09T02:41:20","date_gmt":"2024-11-08T18:41:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179542\/"},"modified":"2024-11-09T02:41:21","modified_gmt":"2024-11-08T18:41:21","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-net-%e4%b8%ad%e4%bf%ae%e6%94%b9%e8%ab%8b%e6%b1%82%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%99%82%e9%96%93-net-%e4%bf%ae%e6%94%b9%e8%ab%8b%e6%b1%82%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179542\/","title":{"rendered":"\u5982\u4f55\u5728 .NET \u4e2d\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593 (.net \u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u6642\u9593)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-net-%e4%b8%ad%e4%bf%ae%e6%94%b9%e8%ab%8b%e6%b1%82%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%99%82%e9%96%93-ZsOXRynTKu\">\u5982\u4f55\u5728 .NET \u4e2d\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u61c9\u7528\u7a0b\u5f0f\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6642\u9593\u7ba1\u7406\u662f\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u7279\u5225\u662f\u5728\u4f7f\u7528 .NET \u6846\u67b6\u9032\u884c\u958b\u767c\u6642\uff0c\u958b\u767c\u8005\u7d93\u5e38\u9700\u8981\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6e96\u78ba\u6027\u548c\u4e00\u81f4\u6027\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 .NET \u4e2d\u6709\u6548\u5730\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e4%bf%ae%e6%94%b9%e8%ab%8b%e6%b1%82%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%99%82%e9%96%93-ZsOXRynTKu\">\u70ba\u4ec0\u9ebc\u9700\u8981\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593<\/h2>\n<p>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u61c9\u7528\u7a0b\u5f0f\u9700\u8981\u6839\u64da\u7279\u5b9a\u7684\u696d\u52d9\u908f\u8f2f\u4f86\u8abf\u6574\u6642\u9593\u3002\u4f8b\u5982\uff0c\u7576\u7528\u6236\u63d0\u4ea4\u8acb\u6c42\u6642\uff0c\u53ef\u80fd\u9700\u8981\u5c07\u8acb\u6c42\u7684\u6642\u9593\u8a2d\u7f6e\u70ba\u7576\u524d\u6642\u9593\uff0c\u6216\u8005\u6839\u64da\u7528\u6236\u7684\u6642\u5340\u9032\u884c\u8abf\u6574\u3002\u6b64\u5916\uff0c\u67d0\u4e9b\u696d\u52d9\u6d41\u7a0b\u53ef\u80fd\u8981\u6c42\u5728\u7279\u5b9a\u7684\u6642\u9593\u7bc4\u570d\u5167\u8655\u7406\u8acb\u6c42\uff0c\u9019\u5c31\u9700\u8981\u5c0d\u6642\u9593\u9032\u884c\u7cbe\u78ba\u7684\u63a7\u5236\u3002<\/p>\n<h2 id=\"net-%e4%b8%ad%e7%9a%84%e6%99%82%e9%96%93%e8%99%95%e7%90%86-ZsOXRynTKu\">.NET \u4e2d\u7684\u6642\u9593\u8655\u7406<\/h2>\n<p>\u5728 .NET \u4e2d\uff0c\u6642\u9593\u7684\u8655\u7406\u4e3b\u8981\u4f9d\u8cf4\u65bc <code>DateTime<\/code> \u7d50\u69cb\u3002\u9019\u500b\u7d50\u69cb\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u7372\u53d6\u548c\u4fee\u6539\u6642\u9593\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u7528\u7684\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><code>DateTime.Now<\/code>\uff1a\u7372\u53d6\u7576\u524d\u7684\u672c\u5730\u6642\u9593\u3002<\/li>\n<li><code>DateTime.UtcNow<\/code>\uff1a\u7372\u53d6\u7576\u524d\u7684 UTC \u6642\u9593\u3002<\/li>\n<li><code>DateTime.AddDays(int days)<\/code>\uff1a\u5728\u7576\u524d\u6642\u9593\u4e0a\u589e\u52a0\u6307\u5b9a\u7684\u5929\u6578\u3002<\/li>\n<li><code>DateTime.ToString(string format)<\/code>\uff1a\u5c07\u6642\u9593\u683c\u5f0f\u5316\u70ba\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%bf%ae%e6%94%b9%e8%ab%8b%e6%b1%82%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%99%82%e9%96%93-ZsOXRynTKu\">\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593<\/h2>\n<p>\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593\u901a\u5e38\u6d89\u53ca\u5230\u8207\u6578\u64da\u5eab\u7684\u4ea4\u4e92\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5728 .NET \u4e2d\u4f7f\u7528 ADO.NET \u4f86\u66f4\u65b0\u6578\u64da\u5eab\u4e2d\u7684\u6642\u9593\u5b57\u6bb5\u3002<\/p>\n<pre><code>\nusing System;\nusing System.Data.SqlClient;\n\nclass Program\n{\n    static void Main()\n    {\n        string connectionString = \"your_connection_string_here\";\n        using (SqlConnection connection = new SqlConnection(connectionString))\n        {\n            connection.Open();\n            string query = \"UPDATE Requests SET RequestTime = @RequestTime WHERE RequestId = @RequestId\";\n            using (SqlCommand command = new SqlCommand(query, connection))\n            {\n                \/\/ \u8a2d\u7f6e\u8acb\u6c42\u6642\u9593\u70ba\u7576\u524d\u6642\u9593\n                command.Parameters.AddWithValue(\"@RequestTime\", DateTime.Now);\n                command.Parameters.AddWithValue(\"@RequestId\", 1); \/\/ \u5047\u8a2d\u8acb\u6c42 ID \u70ba 1\n\n                int rowsAffected = command.ExecuteNonQuery();\n                Console.WriteLine($\"{rowsAffected} rows updated.\");\n            }\n        }\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5efa\u7acb\u4e86\u4e00\u500b\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\uff0c\u7136\u5f8c\u4f7f\u7528 SQL \u8a9e\u53e5\u66f4\u65b0\u8acb\u6c42\u7684\u6642\u9593\u3002\u901a\u904e <code>DateTime.Now<\/code> \u7372\u53d6\u7576\u524d\u6642\u9593\uff0c\u4e26\u5c07\u5176\u4f5c\u70ba\u53c3\u6578\u50b3\u905e\u7d66 SQL \u547d\u4ee4\u3002<\/p>\n<h2 id=\"%e8%80%83%e6%85%ae%e6%99%82%e5%8d%80%e7%9a%84%e5%bd%b1%e9%9f%bf-ZsOXRynTKu\">\u8003\u616e\u6642\u5340\u7684\u5f71\u97ff<\/h2>\n<p>\u5728\u8655\u7406\u6642\u9593\u6642\uff0c\u6642\u5340\u662f\u4e00\u500b\u4e0d\u53ef\u5ffd\u8996\u7684\u56e0\u7d20\u3002\u4e0d\u540c\u7684\u7528\u6236\u53ef\u80fd\u4f4d\u65bc\u4e0d\u540c\u7684\u6642\u5340\uff0c\u56e0\u6b64\u5728\u986f\u793a\u6216\u5b58\u5132\u6642\u9593\u6642\uff0c\u61c9\u8003\u616e\u5230\u9019\u4e00\u9ede\u3002\u53ef\u4ee5\u4f7f\u7528 <code>TimeZoneInfo<\/code> \u985e\u4f86\u9032\u884c\u6642\u5340\u7684\u8f49\u63db\u3002<\/p>\n<pre><code>\nTimeZoneInfo timeZone = TimeZoneInfo.FindSystemTimeZoneById(\"Asia\/Hong_Kong\");\nDateTime localTime = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, timeZone);\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u7576\u524d\u7684 UTC \u6642\u9593\u8f49\u63db\u70ba\u9999\u6e2f\u6642\u9593\uff0c\u9019\u5c0d\u65bc\u9700\u8981\u6839\u64da\u7528\u6236\u5730\u7406\u4f4d\u7f6e\u986f\u793a\u6642\u9593\u7684\u61c9\u7528\u7a0b\u5f0f\u4f86\u8aaa\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ZsOXRynTKu\">\u7e3d\u7d50<\/h2>\n<p>\u5728 .NET \u4e2d\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593\u662f\u4e00\u500b\u6d89\u53ca\u591a\u500b\u6b65\u9a5f\u7684\u904e\u7a0b\uff0c\u5305\u62ec\u7372\u53d6\u7576\u524d\u6642\u9593\u3001\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u4ee5\u53ca\u8003\u616e\u6642\u5340\u7684\u5f71\u97ff\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528 <code>DateTime<\/code> \u7d50\u69cb\u548c ADO.NET\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u548c\u4fee\u6539\u6642\u9593\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u7a0b\u5f0f\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u53ef\u4ee5\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6d41\u66a2\u6027\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 .NET \u4e2d\u6709\u6548\u4fee\u6539\u8acb\u6c42\u6578\u64da\u5eab\u7684\u6642\u9593\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u6e96\u78ba\u6027\u8207\u4e00\u81f4\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-179542","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179542","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=179542"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179542\/revisions"}],"predecessor-version":[{"id":179543,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179542\/revisions\/179543"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}