{"id":489,"date":"2009-11-30T15:08:00","date_gmt":"2009-11-30T07:08:00","guid":{"rendered":"http:\/\/blog.jixin.ntxz.net\/?p=489"},"modified":"2010-07-30T15:41:38","modified_gmt":"2010-07-30T07:41:38","slug":"c%e8%bf%9e%e6%8e%a5%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"http:\/\/www.ntxz.net\/?p=489","title":{"rendered":"C#\u8fde\u63a5\u6570\u636e\u5e93"},"content":{"rendered":"<p>using System.Data;<br \/>using System.Data.SqlClient;<br \/>\/\/\u8fd9\u662f\u4e24\u4e2a\u7528\u5230\u7684\u547d\u540d\u7a7a\u95f4<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; private void InitPage()<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SqlConnection con = new SqlConnection(&#8220;server=127.0.0.1;uid=sa;pwd=123456;database=xzt&#8221;);\/\/\u521b\u5efa\u8fde\u63a5\u5bf9\u8c61\uff0c\u5e76\u8bbe\u7f6e\u8fde\u63a5\u5b57\u7b26\u4e32<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; con.Open();\/\/\u6253\u5f00\u6570\u636e\u5e93\u8fde\u63a5<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SqlCommand myCmd = new SqlCommand(&#8220;select password from [xzt_User] where username = &#8216;silmoon'&#8221;, con);\/\/\u4f7f\u7528\u6307\u5b9a\u7684\u8fde\u63a5\u5bf9\u8c61\u521b\u5efaSQL\u6267\u884c\u547d\u4ee4\u7c7b\uff0c\u5e26\u6709SQL\u8bed\u53e5\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/\u8fd9\u4e2aSqlCommand\u5df2\u7ecf\u88ab\u91cd\u8f7d\uff0c\u53ef\u4ee5\u4ece\u81ea\u52a8\u5b8c\u6210\u4e2d\u627e\u65b9\u6cd5\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/\u5982\u679c\u5355\u5355\u6267\u884c\u4e00\u4e2a\u6ca1\u6709\u8fd4\u56de\u503c\u7684\u8bed\u53e5\u7528\u4e00\u4e0b\u65b9\u6cd5\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; myCmd.ExecuteNonQuery();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/\u4e0a\u9762\u7684\u8fd9\u4e2a\u65b9\u6cd5\u8fd4\u56deSQL\u54cd\u5e94\u884c\u6570\u3002\u53ef\u4ee5\u8d4b\u503c\u83b7\u53d6\u3002\u5982\uff1a<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; int SqlResultInt = myCmd.ExecuteNonQuery();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/\u5982\u679c\u60f3\u83b7\u53d6\u8fd4\u56de\u7684\u7ed3\u679c\uff0c\u8fd9\u6837<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SqlDataReader dr = myCmd.ExecuteReader();\/\/\u521b\u5efaSqlDataReader\uff0c\u7b49\u4e8eSqlCommand.ExecuteReader()\u56e0\u4e3a\u540c\u6837\u7684\u7c7b\u578b\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (dr.Read())\/\/SqlDataReader.Read()\u65b9\u6cd5\u662f\u8bfb\u53d6\u6570\u636e\u7684\uff0c\u5982\u679c\u6709\u6570\u636e\u8fd4\u56deTrue\uff0c\u53cd\u4e4bFalse\uff0c\u4e0d\u7ba1\u60f3\u4e0d\u60f3\u505a\u5224\u65ad\uff0c\u5fc5\u987b\u5148\u7528Read()\u65b9\u6cd5\u8bfb\u53d6\u6570\u636e\uff0c\u5426\u5219\u5f15\u53d1\u5f02\u5e38\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; {<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; string Password = dr[&#8220;password&#8221;].ToString();\/\/Password\u53d8\u91cf\u5c31\u662f\u8fd4\u56de\u7684\u7ed3\u679c\uff0c\u8fd9\u662f\u4f7f\u7528\u6307\u5b9a\u7684\u5b57\u6bb5\u8bfb\u53d6\uff0cdr[&#8220;password&#8221;]\u4e2d\u7684password\u5c31\u662f\u8981\u8bfb\u53d6\u7684\u5b57\u6bb5\uff0c\u53e6\u5916\u8fd8\u53ef\u4ee5\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; string Password1 = dr[0].ToString();\/\/\u8fd9\u79cd\u65b9\u5f0f\u8bfb\u53d6\uff0c\u56e0\u4e3adr\u5df2\u7ecf\u662f\u4e00\u4e2a\u6570\u7ec4\u4e86\uff0c\u4ece0\u5f00\u59cb\u7684\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; else { MessageBox.Show(&#8220;\u6ca1\u6709\u6570\u636e\u3002&#8221;); }\/\/\u5f39\u51fa\u6d88\u606f\u6846\uff0c\u8fd9\u4e2aMessageBox\u662fWinForms\u7684\uff0c\u5728WebForms\u91cc\u9762\u6ca1\u6709\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/\u4ee5\u4e0b\u662f\u5173\u95ed\u5bf9\u8c61\u548c\u91ca\u653e\u5185\u5b58\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dr.Close();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dr.Dispose();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; myCmd.Dispose();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; con.Close();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; con.Dispose();<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/\/\u5927\u5bb6\u53ef\u4ee5\u76f4\u63a5\u7528\u4e00\u4e2acon.Close()\u5c31\u884c\u4e86\uff0c\u4e0d\u8fc7\u5199\u8fd9\u4e48\u591a\u7684\u5173\u95ed\u548c\u91ca\u653e\u5185\u5b58\u7684\u65b9\u6cd5\u662f\u4e2a\u597d\u4e60\u60ef\uff0c\u6709\u5229\u4e8e\u7a0b\u5e8f\u7684\u4f18\u5316\u3002<br \/>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<\/p>\n","protected":false},"excerpt":{"rendered":"<p>using System.Data;using System.Data.SqlClient;\/\/\u8fd9\u662f\u4e24\u4e2a\u7528\u5230\u7684 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,8],"tags":[],"class_list":["post-489","post","type-post","status-publish","format-standard","hentry","category-1","category-oldblog"],"views":283,"_links":{"self":[{"href":"http:\/\/www.ntxz.net\/index.php?rest_route=\/wp\/v2\/posts\/489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ntxz.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ntxz.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ntxz.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ntxz.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=489"}],"version-history":[{"count":1,"href":"http:\/\/www.ntxz.net\/index.php?rest_route=\/wp\/v2\/posts\/489\/revisions"}],"predecessor-version":[{"id":832,"href":"http:\/\/www.ntxz.net\/index.php?rest_route=\/wp\/v2\/posts\/489\/revisions\/832"}],"wp:attachment":[{"href":"http:\/\/www.ntxz.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ntxz.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=489"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ntxz.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}