{"id":166997,"date":"2024-11-05T21:30:34","date_gmt":"2024-11-05T13:30:34","guid":{"rendered":"https:\/\/server.hk\/cnblog\/166997\/"},"modified":"2024-11-05T21:30:35","modified_gmt":"2024-11-05T13:30:35","slug":"%e5%88%a9%e7%94%a8c%e5%b0%8dxml%e6%96%87%e6%aa%94%e5%92%8c%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e5%9b%9b%e5%80%8b%e6%8a%80%e8%a1%93%e7%af%80%e9%bb%9e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/166997\/","title":{"rendered":"\u5229\u7528C#\u5c0dXML\u6587\u6a94\u548c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u56db\u500b\u6280\u8853\u7bc0\u9ede"},"content":{"rendered":"

\u5229\u7528C#\u5c0dXML\u6587\u6a94\u548c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u56db\u500b\u6280\u8853\u7bc0\u9ede<\/h1>\n

\u5728\u73fe\u4ee3\u8edf\u4ef6\u958b\u767c\u4e2d\uff0cC#\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u6578\u64da\u8655\u7406\u4efb\u52d9\u3002\u7279\u5225\u662f\u5728\u8655\u7406XML\u6587\u6a94\u548c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0cC#\u63d0\u4f9b\u4e86\u591a\u7a2e\u6280\u8853\u548c\u5de5\u5177\uff0c\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u9ad8\u6548\u5730\u9032\u884c\u6578\u64da\u7ba1\u7406\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u56db\u500b\u95dc\u9375\u6280\u8853\u7bc0\u9ede\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u5229\u7528C#\u9032\u884cXML\u548c\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u3002<\/p>\n

1. \u4f7f\u7528LINQ to XML\u9032\u884cXML\u6587\u6a94\u64cd\u4f5c<\/h2>\n

LINQ to XML\u662f\u4e00\u500b\u5f37\u5927\u7684API\uff0c\u5141\u8a31\u958b\u767c\u8005\u4ee5\u67e5\u8a62\u7684\u65b9\u5f0f\u64cd\u4f5cXML\u6587\u6a94\u3002\u5b83\u63d0\u4f9b\u4e86\u4e00\u7a2e\u7c21\u55ae\u800c\u76f4\u89c0\u7684\u65b9\u5f0f\u4f86\u8b80\u53d6\u3001\u67e5\u8a62\u548c\u4fee\u6539XML\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528LINQ to XML\u8b80\u53d6XML\u6587\u6a94\u7684\u793a\u4f8b\uff1a<\/p>\n

using System;\nusing System.Linq;\nusing System.Xml.Linq;\n\nclass Program\n{\n    static void Main()\n    {\n        XElement xml = XElement.Load(\"data.xml\");\n        var elements = from el in xml.Elements(\"Item\")\n                       where (int)el.Element(\"Price\") > 100\n                       select el;\n\n        foreach (var item in elements)\n        {\n            Console.WriteLine(item);\n        }\n    }\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u52a0\u8f09\u4e86\u4e00\u500b\u540d\u70badata.xml\u7684XML\u6587\u6a94\uff0c\u4e26\u67e5\u8a62\u6240\u6709\u50f9\u683c\u5927\u65bc100\u7684\u9805\u76ee\u3002\u9019\u7a2e\u65b9\u5f0f\u4e0d\u50c5\u7c21\u6f54\uff0c\u800c\u4e14\u6613\u65bc\u7dad\u8b77\u3002<\/p>\n
2. \u4f7f\u7528XmlDocument\u9032\u884cXML\u6587\u6a94\u7684\u50b3\u7d71\u64cd\u4f5c<\/h2>\n
\u9664\u4e86LINQ to XML\uff0cC#\u9084\u63d0\u4f9b\u4e86XmlDocument\u985e\uff0c\u9019\u662f\u4e00\u7a2e\u66f4\u50b3\u7d71\u7684\u65b9\u5f0f\u4f86\u64cd\u4f5cXML\u6587\u6a94\u3002XmlDocument\u5141\u8a31\u958b\u767c\u8005\u4ee5DOM\uff08\u6587\u6a94\u5c0d\u8c61\u6a21\u578b\uff09\u7684\u65b9\u5f0f\u4f86\u8b80\u53d6\u548c\u4fee\u6539XML\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n
using System;\nusing System.Xml;\n\nclass Program\n{\n    static void Main()\n    {\n        XmlDocument doc = new XmlDocument();\n        doc.Load(\"data.xml\");\n        XmlNodeList nodes = doc.SelectNodes(\"\/Items\/Item[Price > 100]\");\n\n        foreach (XmlNode node in nodes)\n        {\n            Console.WriteLine(node.OuterXml);\n        }\n    }\n}<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u52a0\u8f09XML\u6587\u6a94\u4e26\u9078\u64c7\u6240\u6709\u50f9\u683c\u5927\u65bc100\u7684\u9805\u76ee\uff0c\u7136\u5f8c\u8f38\u51fa\u5176XML\u5167\u5bb9\u3002\u9019\u7a2e\u65b9\u6cd5\u9069\u5408\u9700\u8981\u5c0dXML\u7d50\u69cb\u9032\u884c\u8907\u96dc\u64cd\u4f5c\u7684\u60c5\u6cc1\u3002<\/p>\n
3. \u4f7f\u7528Entity Framework\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n
Entity Framework\uff08EF\uff09\u662f\u4e00\u500b\u5f37\u5927\u7684ORM\uff08\u5c0d\u8c61\u95dc\u4fc2\u6620\u5c04\uff09\u6846\u67b6\uff0c\u80fd\u5920\u7c21\u5316\u6578\u64da\u5eab\u64cd\u4f5c\u3002\u958b\u767c\u8005\u53ef\u4ee5\u4f7f\u7528LINQ\u67e5\u8a62\u6578\u64da\u5eab\uff0c\u4e26\u5c07\u6578\u64da\u6620\u5c04\u5230C#\u5c0d\u8c61\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528EF\u67e5\u8a62\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n
using System;\nusing System.Linq;\n\nclass Program\n{\n    static void Main()\n    {\n        using (var context = new MyDbContext())\n        {\n            var products = context.Products\n                                  .Where(p => p.Price > 100)\n                                  .ToList();\n\n            foreach (var product in products)\n            {\n                Console.WriteLine(product.Name);\n            }\n        }\n    }\n}<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528Entity Framework\u5f9e\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u6240\u6709\u50f9\u683c\u5927\u65bc100\u7684\u7522\u54c1\uff0c\u4e26\u8f38\u51fa\u5176\u540d\u7a31\u3002\u9019\u7a2e\u65b9\u5f0f\u5927\u5927\u7c21\u5316\u4e86\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u8907\u96dc\u6027\u3002<\/p>\n
4. \u4f7f\u7528ADO.NET\u9032\u884c\u4f4e\u5c64\u6b21\u6578\u64da\u5eab\u64cd\u4f5c<\/h2>\n
\u5c0d\u65bc\u9700\u8981\u66f4\u9ad8\u6027\u80fd\u6216\u66f4\u7d30\u7c92\u5ea6\u63a7\u5236\u7684\u5834\u666f\uff0cADO.NET\u63d0\u4f9b\u4e86\u76f4\u63a5\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u7684\u80fd\u529b\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528ADO.NET\u57f7\u884cSQL\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n
using System;\nusing System.Data.SqlClient;\n\nclass Program\n{\n    static void Main()\n    {\n        using (SqlConnection connection = new SqlConnection(\"your_connection_string\"))\n        {\n            connection.Open();\n            SqlCommand command = new SqlCommand(\"SELECT * FROM Products WHERE Price > 100\", connection);\n            SqlDataReader reader = command.ExecuteReader();\n\n            while (reader.Read())\n            {\n                Console.WriteLine(reader[\"Name\"]);\n            }\n        }\n    }\n}<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528ADO.NET\u9023\u63a5\u5230\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\uff0c\u9069\u5408\u9700\u8981\u76f4\u63a5\u64cd\u4f5cSQL\u7684\u60c5\u6cc1\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728C#\u4e2d\uff0c\u8655\u7406XML\u6587\u6a94\u548c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6280\u8853\u591a\u7a2e\u591a\u6a23\uff0c\u5f9eLINQ to XML\u5230Entity Framework\uff0c\u6bcf\u7a2e\u65b9\u6cd5\u90fd\u6709\u5176\u7279\u5b9a\u7684\u61c9\u7528\u5834\u666f\u3002\u958b\u767c\u8005\u53ef\u4ee5\u6839\u64da\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6280\u8853\u4f86\u63d0\u9ad8\u958b\u767c\u6548\u7387\u548c\u4ee3\u78bc\u53ef\u7dad\u8b77\u6027\u3002\u7121\u8ad6\u662f\u4f7f\u7528\u9ad8\u5c64\u6b21\u7684API\u9084\u662f\u4f4e\u5c64\u6b21\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cC#\u90fd\u80fd\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684 \u9999\u6e2fVPS<\/a> \u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u5229\u7528C#\u9032\u884cXML\u6587\u6a94\u548c\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u56db\u500b\u95dc\u9375\u6280\u8853\u7bc0\u9ede\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u9748\u6d3b\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-166997","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166997","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=166997"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166997\/revisions"}],"predecessor-version":[{"id":166998,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/166997\/revisions\/166998"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=166997"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=166997"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=166997"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}