{"id":61155,"date":"2024-10-13T08:53:17","date_gmt":"2024-10-13T00:53:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/61155\/"},"modified":"2024-10-13T08:53:17","modified_gmt":"2024-10-13T00:53:17","slug":"delphi%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%af%ab%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%8f%ad%e7%a7%98-delphi-%e8%ae%80%e5%af%ab%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/61155\/","title":{"rendered":"Delphi\u6578\u64da\u5eab\u8b80\u5beb\u6280\u5de7\u5927\u63ed\u79d8 (delphi \u8b80\u5beb\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"delphi%e6%95%b8%e6%93%9a%e5%ba%ab%e8%ae%80%e5%af%ab%e6%8a%80%e5%b7%a7%e5%a4%a7%e6%8f%ad%e7%a7%98-FsCsZsoddF\">Delphi\u6578\u64da\u5eab\u8b80\u5beb\u6280\u5de7\u5927\u63ed\u79d8<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u8edf\u4ef6\u958b\u767c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002Delphi\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u958b\u767c\u5de5\u5177\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u8b80\u53d6\u548c\u5beb\u5165\u6578\u64da\u5eab\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eDelphi\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n<h2 id=\"1-delphi%e8%88%87%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%80%a3%e6%8e%a5-FsCsZsoddF\">1. Delphi\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002Delphi\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u65bcMySQL\u3001SQLite\u548cOracle\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528FireDAC\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<pre><code>uses\n  FireDAC.Comp.Client, FireDAC.Stan.Def, FireDAC.Stan.Async, FireDAC.DApt;\n\nvar\n  Connection: TFDConnection;\nbegin\n  Connection := TFDConnection.Create(nil);\n  try\n    Connection.DriverName := 'MySQL';\n    Connection.Params.Add('Database=your_database');\n    Connection.Params.Add('User_Name=your_username');\n    Connection.Params.Add('Password=your_password');\n    Connection.Params.Add('Server=your_server');\n    Connection.Connected := True;\n  finally\n    Connection.Free;\n  end;\nend;<\/code><\/pre>\n<h2 id=\"2-%e6%95%b8%e6%93%9a%e7%9a%84%e8%ae%80%e5%8f%96-FsCsZsoddF\">2. \u6578\u64da\u7684\u8b80\u53d6<\/h2>\n<p>\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u5c31\u53ef\u4ee5\u958b\u59cb\u8b80\u53d6\u6578\u64da\u3002Delphi\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u57f7\u884c\u67e5\u8a62\uff0c\u6700\u5e38\u7528\u7684\u662f\u4f7f\u7528TFDQuery\u7d44\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>var\n  Query: TFDQuery;\n  Result: string;\nbegin\n  Query := TFDQuery.Create(nil);\n  try\n    Query.Connection := Connection; \/\/ \u4f7f\u7528\u4e4b\u524d\u5efa\u7acb\u7684\u9023\u63a5\n    Query.SQL.Text := 'SELECT name FROM users WHERE id = :id';\n    Query.ParamByName('id').AsInteger := 1;\n    Query.Open;\n\n    if not Query.IsEmpty then\n      Result := Query.FieldByName('name').AsString;\n  finally\n    Query.Free;\n  end;\nend;<\/code><\/pre>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e7%9a%84%e5%af%ab%e5%85%a5-FsCsZsoddF\">3. \u6578\u64da\u7684\u5beb\u5165<\/h2>\n<p>\u5beb\u5165\u6578\u64da\u540c\u6a23\u53ef\u4ee5\u4f7f\u7528TFDQuery\u7d44\u4ef6\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>begin\n  Query := TFDQuery.Create(nil);\n  try\n    Query.Connection := Connection; \/\/ \u4f7f\u7528\u4e4b\u524d\u5efa\u7acb\u7684\u9023\u63a5\n    Query.SQL.Text := 'INSERT INTO users (name, email) VALUES (:name, :email)';\n    Query.ParamByName('name').AsString := 'John Doe';\n    Query.ParamByName('email').AsString := 'john@example.com';\n    Query.ExecSQL; \/\/ \u57f7\u884c\u63d2\u5165\u64cd\u4f5c\n  finally\n    Query.Free;\n  end;\nend;<\/code><\/pre>\n<h2 id=\"4-%e6%95%b8%e6%93%9a%e7%9a%84%e6%9b%b4%e6%96%b0%e8%88%87%e5%88%aa%e9%99%a4-FsCsZsoddF\">4. \u6578\u64da\u7684\u66f4\u65b0\u8207\u522a\u9664<\/h2>\n<p>\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u7684\u904e\u7a0b\u8207\u63d2\u5165\u6578\u64da\u985e\u4f3c\u3002\u4ee5\u4e0b\u662f\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>begin\n  \/\/ \u66f4\u65b0\u6578\u64da\n  Query.SQL.Text := 'UPDATE users SET email = :email WHERE name = :name';\n  Query.ParamByName('email').AsString := 'john.doe@example.com';\n  Query.ParamByName('name').AsString := 'John Doe';\n  Query.ExecSQL;\n\n  \/\/ \u522a\u9664\u6578\u64da\n  Query.SQL.Text := 'DELETE FROM users WHERE name = :name';\n  Query.ParamByName('name').AsString := 'John Doe';\n  Query.ExecSQL;\nend;<\/code><\/pre>\n<h2 id=\"5-%e9%8c%af%e8%aa%a4%e8%99%95%e7%90%86-FsCsZsoddF\">5. \u932f\u8aa4\u8655\u7406<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u932f\u8aa4\u8655\u7406\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002Delphi\u63d0\u4f9b\u4e86\u7570\u5e38\u8655\u7406\u6a5f\u5236\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u6355\u6349\u548c\u8655\u7406\u932f\u8aa4\uff1a<\/p>\n<pre><code>try\n  \/\/ \u6578\u64da\u5eab\u64cd\u4f5c\u4ee3\u78bc\nexcept\n  on E: Exception do\n    ShowMessage('\u767c\u751f\u932f\u8aa4: ' + E.Message);\nend;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-FsCsZsoddF\">\u7e3d\u7d50<\/h2>\n<p>\u638c\u63e1Delphi\u7684\u6578\u64da\u5eab\u8b80\u5beb\u6280\u5de7\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6b63\u78ba\u7684\u9023\u63a5\u3001\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u7121\u8ad6\u662f\u4f7f\u7528MySQL\u9084\u662f\u5176\u4ed6\u6578\u64da\u5eab\uff0cDelphi\u90fd\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u89e3\u6c7a\u65b9\u6848\u4f86\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684Delphi\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Delphi\u6578\u64da\u5eab\u8b80\u5beb\u6280\u5de7\uff0c\u638c\u63e1\u9ad8\u6548\u64cd\u4f5c\u65b9\u6cd5\uff0c\u63d0\u5347\u958b\u767c\u6548\u7387\uff0c\u8b93\u6578\u64da\u7ba1\u7406\u66f4\u8f15\u9b06\uff01<\/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-61155","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61155","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=61155"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61155\/revisions"}],"predecessor-version":[{"id":61156,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/61155\/revisions\/61156"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=61155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=61155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=61155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}