{"id":41187,"date":"2023-12-11T14:52:49","date_gmt":"2023-12-11T06:52:49","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=41187"},"modified":"2023-12-11T14:52:49","modified_gmt":"2023-12-11T06:52:49","slug":"ado-net%e4%b8%ad%e5%b8%b8%e7%94%a8%e7%9a%84%e5%af%b9%e8%b1%a1%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f%e5%88%86%e5%88%ab%e6%8f%8f%e8%bf%b0%e4%b8%80%e4%b8%8b-2","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/12\/11\/ado-net%e4%b8%ad%e5%b8%b8%e7%94%a8%e7%9a%84%e5%af%b9%e8%b1%a1%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f%e5%88%86%e5%88%ab%e6%8f%8f%e8%bf%b0%e4%b8%80%e4%b8%8b-2\/","title":{"rendered":"ADO.Net\u4e2d\u5e38\u7528\u7684\u5bf9\u8c61\u6709\u54ea\u4e9b\uff1f\u5206\u522b\u63cf\u8ff0\u4e00\u4e0b"},"content":{"rendered":"

“`” \u7b54\uff1a<\/p>\n

<strong>Connection<\/strong>\uff1a\u4e3b\u8981\u662f\u5f00\u542f\u7a0b\u5e8f\u548c\u6570\u636e\u5e93\u4e4b\u95f4\u7684\u8fde\u63a5\u3002\u6ca1\u6709\u5229\u7528\u8fde\u63a5\u5bf9\u8c61\u5c06\u6570\u636e\u5e93\u6253\u5f00\uff0c\u662f\u65e0\u6cd5\u4ece\u6570\u636e\u5e93\u4e2d\u53d6\u5f97\u6570\u636e\u7684\u3002Close\u548cDispose\u7684\u533a\u522b\uff0cClose\u4ee5\u540e\u8fd8\u53ef\u4ee5Open\uff0cDispose\u4ee5\u540e\u5219\u4e0d\u80fd\u518d\u7528\u3002<\/p>\n

<strong>Command<\/strong>\uff1a\u4e3b\u8981\u53ef\u4ee5\u7528\u6765\u5bf9\u6570\u636e\u5e93\u53d1\u51fa\u4e00\u4e9b\u6307\u4ee4\uff0c\u4f8b\u5982\u53ef\u4ee5\u5bf9\u6570\u636e\u5e93\u4e0b\u8fbe\u67e5\u8be2\u3001\u65b0\u589e\u3001\u4fee\u6539\u3001\u5220\u9664\u6570\u636e\u7b49\u6307\u4ee4\uff0c\u4ee5\u53ca\u8c03\u7528\u5b58\u5728\u6570\u636e\u5e93\u4e2d\u7684\u5b58\u50a8\u8fc7\u7a0b\u7b49\u3002\u8fd9\u4e2a\u5bf9\u8c61\u662f\u67b6\u6784\u5728Connection \u5bf9\u8c61\u4e0a\uff0c\u4e5f\u5c31\u662fCommand \u5bf9\u8c61\u662f\u900f\u8fc7\u8fde\u63a5\u5230\u6570\u636e\u6e90\u3002<\/p>\n

<strong>DataAdapter<\/strong>\uff1a\u4e3b\u8981\u662f\u5728\u6570\u636e\u6e90\u4ee5\u53caDataSet \u4e4b\u95f4\u6267\u884c\u6570\u636e\u4f20\u8f93\u7684\u5de5\u4f5c\uff0c\u5b83\u53ef\u4ee5\u900f\u8fc7Command \u5bf9\u8c61\u4e0b\u8fbe\u547d\u4ee4\u540e\uff0c\u5e76\u5c06\u53d6\u5f97\u7684\u6570\u636e\u653e\u5165DataSet \u5bf9\u8c61\u4e2d\u3002\u8fd9\u4e2a\u5bf9\u8c61\u662f\u67b6\u6784\u5728Command\u5bf9\u8c61\u4e0a\uff0c\u5e76\u63d0\u4f9b\u4e86\u8bb8\u591a\u914d\u5408DataSet \u4f7f\u7528\u7684\u529f\u80fd\u3002<\/p>\n

<strong>DataSet<\/strong>\uff1a\u8fd9\u4e2a\u5bf9\u8c61\u53ef\u4ee5\u89c6\u4e3a\u4e00\u4e2a\u6682\u5b58\u533a\uff08Cache\uff09\uff0c\u53ef\u4ee5\u628a\u4ece\u6570\u636e\u5e93\u4e2d\u6240\u67e5\u8be2\u5230\u7684\u6570\u636e\u4fdd\u7559\u8d77\u6765\uff0c\u751a\u81f3\u53ef\u4ee5\u5c06\u6574\u4e2a\u6570\u636e\u5e93\u663e\u793a\u51fa\u6765\uff0cDataSet\u662f\u653e\u5728\u5185\u5b58\u4e2d\u7684\u3002DataSet \u7684\u80fd\u529b\u4e0d\u53ea\u662f\u53ef\u4ee5\u50a8\u5b58\u591a\u4e2aTable \u800c\u5df2\uff0c\u8fd8\u53ef\u4ee5\u900f\u8fc7DataAdapter\u5bf9\u8c61\u53d6\u5f97\u4e00\u4e9b\u4f8b\u5982\u4e3b\u952e\u7b49\u7684\u6570\u636e\u8868\u7ed3\u6784\uff0c\u5e76\u53ef\u4ee5\u8bb0\u5f55\u6570\u636e\u8868\u95f4\u7684\u5173\u8054\u3002DataSet \u5bf9\u8c61\u53ef\u4ee5\u8bf4\u662fADO.NET \u4e2d\u91cd\u91cf\u7ea7\u7684\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u67b6\u6784\u5728DataAdapter\u5bf9\u8c61\u4e0a\uff0c\u672c\u8eab\u4e0d\u5177\u5907\u548c\u6570\u636e\u6e90\u6c9f\u901a\u7684\u80fd\u529b\uff1b\u4e5f\u5c31\u662f\u8bf4\u6211\u4eec\u662f\u5c06DataAdapter\u5bf9\u8c61\u5f53\u505aDataSet \u5bf9\u8c61\u4ee5\u53ca\u6570\u636e\u6e90\u95f4\u4f20\u8f93\u6570\u636e\u7684\u6865\u6881\u3002DataSet\u5305\u542b\u82e5\u5e72DataTable\u3001DataTableTable\u5305\u542b\u82e5\u5e72DataRow\u3002<\/p>\n

<strong>DataReader<\/strong>\uff1a\u5f53\u6211\u4eec\u53ea\u9700\u8981\u5faa\u5e8f\u7684\u8bfb\u53d6\u6570\u636e\u800c\u4e0d\u9700\u8981\u5176\u5b83\u64cd\u4f5c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528DataReader \u5bf9\u8c61\u3002DataReader\u5bf9\u8c61\u53ea\u662f\u4e00\u6b21\u4e00\u7b14\u5411\u4e0b\u5faa\u5e8f\u7684\u8bfb\u53d6\u6570\u636e\u6e90\u4e2d\u7684\u6570\u636e\uff0c\u8fd9\u4e9b\u6570\u636e\u662f\u5b58\u5728\u6570\u636e\u5e93\u670d\u52a1\u5668\u4e2d\u7684\uff0c\u800c\u4e0d\u662f\u4e00\u6b21\u6027\u52a0\u8f7d\u5230\u7a0b\u5e8f\u7684\u5185\u5b58\u4e2d\u7684\uff0c\u53ea\u80fd\uff08\u901a\u8fc7\u6e38\u6807\uff09\u8bfb\u53d6\u5f53\u524d\u884c\u7684\u6570\u636e\uff0c\u800c\u4e14\u8fd9\u4e9b\u6570\u636e\u662f\u53ea\u8bfb\u7684\uff0c\u5e76\u4e0d\u5141\u8bb8\u4f5c\u5176\u5b83\u7684\u64cd\u4f5c\u3002\u56e0\u4e3aDataReader \u5728\u8bfb\u53d6\u6570\u636e\u7684\u65f6\u5019\u9650\u5236\u4e86\u6bcf\u6b21\u53ea\u8bfb\u53d6\u4e00\u7b14\uff0c\u800c\u4e14\u53ea\u80fd\u53ea\u8bfb\uff0c\u6240\u4ee5\u4f7f\u7528\u8d77\u6765\u4e0d\u4f46\u8282\u7701\u8d44\u6e90\u800c\u4e14\u6548\u7387\u5f88\u597d\u3002\u4f7f\u7528DataReader \u5bf9\u8c61\u9664\u4e86\u6548\u7387\u8f83\u597d\u4e4b\u5916\uff0c\u56e0\u4e3a\u4e0d\u7528\u628a\u6570\u636e\u5168\u90e8\u4f20\u56de\uff0c\u6545\u53ef\u4ee5\u964d\u4f4e\u7f51\u7edc\u7684\u8d1f\u8f7d\u3002<\/p>\n

ADO.NET \u4f7f\u7528Connection \u5bf9\u8c61\u6765\u8fde\u63a5\u6570\u636e\u5e93\uff0c\u4f7f\u7528Command \u6216DataAdapter\u5bf9\u8c61\u6765\u6267\u884cSQL\u8bed\u53e5\uff0c\u5e76\u5c06\u6267\u884c\u7684\u7ed3\u679c\u8fd4\u56de\u7ed9DataReader \u6216 DataAdapter ,\u7136\u540e\u518d\u4f7f\u7528\u53d6\u5f97\u7684DataReader \u6216DataAdapter \u5bf9\u8c61\u64cd\u4f5c\u6570\u636e\u7ed3\u679c\u3002<\/p>\n

\u00a0<\/p>\n

<pre><code> "“`
\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"

“`” \u7b54\uff1a <strong>Connection<\/strong& […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-41187","post","type-post","status-publish","format-standard","hentry","category-c"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41187","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=41187"}],"version-history":[{"count":1,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41187\/revisions"}],"predecessor-version":[{"id":41188,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/41187\/revisions\/41188"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=41187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=41187"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=41187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}