{"id":144335,"date":"2024-11-01T09:13:38","date_gmt":"2024-11-01T01:13:38","guid":{"rendered":"https:\/\/server.hk\/cnblog\/144335\/"},"modified":"2024-11-01T09:13:39","modified_gmt":"2024-11-01T01:13:39","slug":"vb-net-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e5%85%a5%e9%96%80%e6%8c%87%e5%8d%97%ef%bc%8c%e8%bc%95%e9%ac%86%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/144335\/","title":{"rendered":"VB.NET \u6578\u64da\u5eab\u7de8\u7a0b\u5165\u9580\u6307\u5357\uff0c\u8f15\u9b06\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff01 (vb.net \u6578\u64da\u5eab\u7de8\u7a0b\u5165\u9580)"},"content":{"rendered":"<h1 id=\"vb-net-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a8%8b%e5%85%a5%e9%96%80%e6%8c%87%e5%8d%97%ef%bc%8c%e8%bc%95%e9%ac%86%e6%8e%8c%e6%8f%a1%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7-eUhfMQJYkX\">VB.NET \u6578\u64da\u5eab\u7de8\u7a0b\u5165\u9580\u6307\u5357\uff0c\u8f15\u9b06\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u4f7f\u7528\u5df2\u7d93\u6210\u70ba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002VB.NET \u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u4ecb\u7d39 VB.NET \u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u548c\u6280\u5de7\uff0c\u5e6b\u52a9\u521d\u5b78\u8005\u8f15\u9b06\u638c\u63e1\u6578\u64da\u5eab\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-vb-net%ef%bc%9f-eUhfMQJYkX\">\u4ec0\u9ebc\u662f VB.NET\uff1f<\/h2>\n<p>VB.NET \u662f\u5fae\u8edf\u958b\u767c\u7684\u4e00\u7a2e\u9762\u5411\u5c0d\u8c61\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u57fa\u65bc .NET \u5e73\u53f0\u3002\u5b83\u7684\u8a9e\u6cd5\u7c21\u55ae\u6613\u61c2\uff0c\u7279\u5225\u9069\u5408\u521d\u5b78\u8005\u3002VB.NET \u652f\u6301\u591a\u7a2e\u7de8\u7a0b\u7bc4\u5f0f\uff0c\u5305\u62ec\u4e8b\u4ef6\u9a45\u52d5\u7de8\u7a0b\u548c\u9762\u5411\u5c0d\u8c61\u7de8\u7a0b\uff0c\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u5feb\u901f\u69cb\u5efa\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-eUhfMQJYkX\">\u6578\u64da\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5eab\u662f\u4e00\u7a2e\u6709\u7d44\u7e54\u7684\u6578\u64da\u96c6\u5408\uff0c\u901a\u5e38\u7528\u65bc\u5b58\u5132\u548c\u7ba1\u7406\u4fe1\u606f\u3002\u5e38\u898b\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u5305\u62ec Microsoft SQL Server\u3001MySQL \u548c Oracle \u7b49\u3002VB.NET \u53ef\u4ee5\u901a\u904e ADO.NET \u4f86\u8207\u9019\u4e9b\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002<\/p>\n<h2 id=\"ado-net-%e7%b0%a1%e4%bb%8b-eUhfMQJYkX\">ADO.NET \u7c21\u4ecb<\/h2>\n<p>ADO.NET \u662f .NET \u6846\u67b6\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u63d0\u4f9b\u4e86\u4e00\u7d44\u7528\u65bc\u6578\u64da\u8a2a\u554f\u7684\u985e\u3002\u5b83\u652f\u6301\u9023\u63a5\u5230\u5404\u7a2e\u6578\u64da\u6e90\uff0c\u4e26\u80fd\u5920\u57f7\u884c\u67e5\u8a62\u548c\u66f4\u65b0\u64cd\u4f5c\u3002ADO.NET \u7684\u6838\u5fc3\u7d44\u4ef6\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>Connection<\/strong>\uff1a\u7528\u65bc\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002<\/li>\n<li><strong>Command<\/strong>\uff1a\u7528\u65bc\u57f7\u884c SQL \u8a9e\u53e5\u3002<\/li>\n<li><strong>DataReader<\/strong>\uff1a\u7528\u65bc\u4ee5\u6d41\u7684\u65b9\u5f0f\u8b80\u53d6\u6578\u64da\u3002<\/li>\n<li><strong>DataAdapter<\/strong>\uff1a\u7528\u65bc\u586b\u5145 DataSet \u548c\u66f4\u65b0\u6578\u64da\u5eab\u3002<\/li>\n<li><strong>DataSet<\/strong>\uff1a\u7528\u65bc\u5728\u5167\u5b58\u4e2d\u5b58\u5132\u6578\u64da\u7684\u96c6\u5408\u3002<\/li>\n<\/ul>\n<h2 id=\"vb-net-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%a4%ba%e4%be%8b-eUhfMQJYkX\">VB.NET \u6578\u64da\u5eab\u64cd\u4f5c\u793a\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684 VB.NET \u6578\u64da\u5eab\u64cd\u4f5c\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u9023\u63a5\u5230 SQL Server \u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nImports System.Data.SqlClient\n\nModule Module1\n    Sub Main()\n        ' \u5b9a\u7fa9\u9023\u63a5\u5b57\u7b26\u4e32\n        Dim connectionString As String = \"Server=your_server;Database=your_database;User Id=your_username;Password=your_password;\"\n        \n        ' \u5275\u5efa\u9023\u63a5\n        Using connection As New SqlConnection(connectionString)\n            connection.Open()\n            Console.WriteLine(\"\u6578\u64da\u5eab\u9023\u63a5\u6210\u529f\uff01\")\n\n            ' \u5275\u5efa SQL \u547d\u4ee4\n            Dim command As New SqlCommand(\"SELECT * FROM your_table\", connection)\n\n            ' \u57f7\u884c\u547d\u4ee4\u4e26\u8b80\u53d6\u6578\u64da\n            Using reader As SqlDataReader = command.ExecuteReader()\n                While reader.Read()\n                    Console.WriteLine(reader(\"column_name\").ToString())\n                End While\n            End Using\n        End Using\n    End Sub\nEnd Module\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u9023\u63a5\u5b57\u7b26\u4e32\uff0c\u7136\u5f8c\u4f7f\u7528 SqlConnection \u985e\u4f86\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u63a5\u8457\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b SqlCommand \u4f86\u57f7\u884c SQL \u67e5\u8a62\uff0c\u4e26\u4f7f\u7528 SqlDataReader \u4f86\u8b80\u53d6\u67e5\u8a62\u7d50\u679c\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-eUhfMQJYkX\">\u6578\u64da\u5eab\u64cd\u4f5c\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<ul>\n<li><strong>\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62<\/strong>\uff1a\u70ba\u4e86\u9632\u6b62 SQL \u6ce8\u5165\u653b\u64ca\uff0c\u61c9\u4f7f\u7528\u53c3\u6578\u5316\u67e5\u8a62\u4f86\u57f7\u884c SQL \u8a9e\u53e5\u3002<\/li>\n<li><strong>\u9069\u7576\u8655\u7406\u7570\u5e38<\/strong>\uff1a\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\uff0c\u61c9\u4f7f\u7528 try-catch \u584a\u4f86\u6355\u7372\u548c\u8655\u7406\u7570\u5e38\u3002<\/li>\n<li><strong>\u91cb\u653e\u8cc7\u6e90<\/strong>\uff1a\u4f7f\u7528\u5b8c\u6578\u64da\u5eab\u9023\u63a5\u5f8c\uff0c\u61c9\u53ca\u6642\u95dc\u9589\u9023\u63a5\u4ee5\u91cb\u653e\u8cc7\u6e90\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eUhfMQJYkX\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86 VB.NET \u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u672c\u6982\u5ff5\u548c\u64cd\u4f5c\u6280\u5de7\uff0c\u5e6b\u52a9\u521d\u5b78\u8005\u5feb\u901f\u4e0a\u624b\u3002\u901a\u904e\u5b78\u7fd2 ADO.NET \u7684\u4f7f\u7528\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u8207\u5404\u7a2e\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\uff0c\u5be6\u73fe\u6578\u64da\u7684\u589e\u522a\u6539\u67e5\u64cd\u4f5c\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1VB.NET\u6578\u64da\u5eab\u7de8\u7a0b\u7684\u57fa\u790e\u77e5\u8b58\uff0c\u8f15\u9b06\u5b78\u7fd2\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff0c\u5feb\u901f\u63d0\u5347\u60a8\u7684\u7de8\u7a0b\u80fd\u529b\uff01<\/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-144335","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144335","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=144335"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144335\/revisions"}],"predecessor-version":[{"id":144336,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/144335\/revisions\/144336"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=144335"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=144335"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=144335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}