{"id":58043,"date":"2024-10-12T19:17:17","date_gmt":"2024-10-12T11:17:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/58043\/"},"modified":"2024-10-12T19:17:17","modified_gmt":"2024-10-12T11:17:17","slug":"net%e6%a1%86%e6%9e%b6%e4%b8%ad%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%af%a6%e7%8f%be-net%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%80%a3%e6%8e%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/58043\/","title":{"rendered":".NET\u6846\u67b6\u4e2d\u6578\u64da\u5eab\u9023\u63a5\u7684\u5be6\u73fe (.net\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5)"},"content":{"rendered":"<h1 id=\"net%e6%a1%86%e6%9e%b6%e4%b8%ad%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%af%a6%e7%8f%be-net%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%80%a3%e6%8e%a5-QVbtDDzNEH\">.NET\u6846\u67b6\u4e2d\u6578\u64da\u5eab\u9023\u63a5\u7684\u5be6\u73fe 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id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-QVbtDDzNEH\">\u6578\u64da\u5eab\u9023\u63a5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728.NET\u4e2d\uff0c\u6578\u64da\u5eab\u9023\u63a5\u901a\u5e38\u901a\u904eADO.NET\u4f86\u5be6\u73fe\u3002ADO.NET\u662f\u4e00\u7d44\u7528\u65bc\u6578\u64da\u8a2a\u554f\u7684\u985e\uff0c\u652f\u6301\u8207\u591a\u7a2e\u6578\u64da\u6e90\u7684\u4ea4\u4e92\uff0c\u5305\u62ecSQL Server\u3001Oracle\u3001MySQL\u7b49\u3002\u901a\u904eADO.NET\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u3001\u66f4\u65b0\u6578\u64da\u4ee5\u53ca\u8655\u7406\u6578\u64da\u96c6\u3002<\/p>\n<h2 id=\"%e5%bb%ba%e7%ab%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-QVbtDDzNEH\">\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n<p>\u8981\u5728.NET\u4e2d\u5efa\u7acb\u6578\u64da\u5eab\u9023\u63a5\uff0c\u9996\u5148\u9700\u8981\u5f15\u7528\u76f8\u61c9\u7684\u547d\u540d\u7a7a\u9593\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528SQL Server\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>using System;\nusing System.Data.SqlClient;\n\nclass Program\n{\n    static void Main()\n    {\n        string connectionString = \"Server=your_server;Database=your_database;User Id=your_username;Password=your_password;\";\n        \n        using (SqlConnection connection = new SqlConnection(connectionString))\n        {\n            connection.Open();\n            Console.WriteLine(\"\u6578\u64da\u5eab\u9023\u63a5\u6210\u529f\uff01\");\n            \/\/ \u5728\u9019\u88e1\u57f7\u884c\u6578\u64da\u64cd\u4f5c\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"%e9%80%a3%e6%8e%a5%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84%e7%b5%84%e6%88%90-QVbtDDzNEH\">\u9023\u63a5\u5b57\u7b26\u4e32\u7684\u7d44\u6210<\/h3>\n<p>\u9023\u63a5\u5b57\u7b26\u4e32\u662f\u7528\u4f86\u6307\u5b9a\u5982\u4f55\u9023\u63a5\u5230\u6578\u64da\u5eab\u7684\u3002\u5b83\u901a\u5e38\u5305\u542b\u4ee5\u4e0b\u5e7e\u500b\u90e8\u5206\uff1a<\/p>\n<ul>\n<li><strong>Server<\/strong>: \u6578\u64da\u5eab\u4f3a\u670d\u5668\u7684\u5730\u5740\u3002<\/li>\n<li><strong>Database<\/strong>: \u8981\u9023\u63a5\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002<\/li>\n<li><strong>User Id<\/strong>: \u7528\u6236\u540d\u3002<\/li>\n<li><strong>Password<\/strong>: \u5bc6\u78bc\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%9f%b7%e8%a1%8csql%e5%91%bd%e4%bb%a4-QVbtDDzNEH\">\u57f7\u884cSQL\u547d\u4ee4<\/h2>\n<p>\u4e00\u65e6\u5efa\u7acb\u4e86\u9023\u63a5\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528SqlCommand\u5c0d\u8c61\u4f86\u57f7\u884cSQL\u547d\u4ee4\u3002\u4ee5\u4e0b\u662f\u57f7\u884c\u67e5\u8a62\u548c\u66f4\u65b0\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>string query = \"SELECT * FROM Users\";\nusing (SqlCommand command = new SqlCommand(query, connection))\n{\n    using (SqlDataReader reader = command.ExecuteReader())\n    {\n        while (reader.Read())\n        {\n            Console.WriteLine(reader[\"Username\"]);\n        }\n    }\n}\n\nstring insertQuery = \"INSERT INTO Users (Username) VALUES ('new_user')\";\nusing (SqlCommand command = new SqlCommand(insertQuery, connection))\n{\n    int rowsAffected = command.ExecuteNonQuery();\n    Console.WriteLine($\"{rowsAffected} \u884c\u5df2\u63d2\u5165\u3002\");\n}\n<\/code><\/pre>\n<h2 id=\"%e8%99%95%e7%90%86%e7%95%b0%e5%b8%b8-QVbtDDzNEH\">\u8655\u7406\u7570\u5e38<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u8655\u7406\u7570\u5e38\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u53ef\u4ee5\u4f7f\u7528try-catch\u584a\u4f86\u6355\u7372\u53ef\u80fd\u767c\u751f\u7684\u7570\u5e38\uff1a<\/p>\n<pre><code>try\n{\n    connection.Open();\n    \/\/ \u6578\u64da\u5eab\u64cd\u4f5c\n}\ncatch (SqlException ex)\n{\n    Console.WriteLine($\"\u6578\u64da\u5eab\u932f\u8aa4: {ex.Message}\");\n}\nfinally\n{\n    connection.Close();\n}\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-QVbtDDzNEH\">\u7e3d\u7d50<\/h2>\n<p>\u5728.NET\u6846\u67b6\u4e2d\uff0c\u901a\u904eADO.NET\u5be6\u73fe\u6578\u64da\u5eab\u9023\u63a5\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\u3002\u958b\u767c\u8005\u53ea\u9700\u8a2d\u7f6e\u6b63\u78ba\u7684\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u4f7f\u7528SqlConnection\u548cSqlCommand\u5c0d\u8c61\u4f86\u57f7\u884c\u6578\u64da\u64cd\u4f5c\u3002\u9019\u4e9b\u57fa\u672c\u7684\u64cd\u4f5c\u70ba\u958b\u767c\u8005\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\uff0c\u7121\u8ad6\u662f\u67e5\u8a62\u9084\u662f\u66f4\u65b0\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684.NET\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u4e86\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u6027\u80fd\u548c\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22.NET\u6846\u67b6\u4e2d\u6578\u64da\u5eab\u9023\u63a5\u7684\u5be6\u73fe\uff0c\u4e86\u89e3\u5982\u4f55\u9ad8\u6548\u5730\u8207\u5404\u985e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u548c\u64cd\u4f5c\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-58043","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58043","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=58043"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58043\/revisions"}],"predecessor-version":[{"id":58044,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/58043\/revisions\/58044"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=58043"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=58043"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=58043"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}