{"id":4970,"date":"2018-11-18T20:00:41","date_gmt":"2018-11-18T12:00:41","guid":{"rendered":"http:\/\/blog.qdac.cc\/?p=4970"},"modified":"2018-11-18T20:00:41","modified_gmt":"2018-11-18T12:00:41","slug":"%e6%95%99%e7%a8%8bqlog-%e5%88%86%e7%b1%bb%e5%9e%8b%e8%ae%b0%e5%bd%95%e6%97%a5%e5%bf%97%e5%92%8c-tqlogstringswriter-%e7%9a%84%e7%94%a8%e6%b3%95%e7%ae%80%e5%8d%95%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/blog.qdac.cc\/?p=4970","title":{"rendered":"[\u6559\u7a0b]QLog \u5206\u7c7b\u578b\u8bb0\u5f55\u65e5\u5fd7\u548c TQLogStringsWriter \u7684\u7528\u6cd5\u7b80\u5355\u793a\u4f8b"},"content":{"rendered":"

QLog\u00a0\u6700\u8fd1\u505a\u4e86\u4e00\u4e9b\u66f4\u65b0\uff0c\u4e0b\u9762\u6f14\u793a\u4e0b\u66f4\u65b0\u7684\u51e0\u4e2a\u5730\u65b9\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n

1\u3001\u4e3a TQLogWriter\u00a0\u57fa\u7c7b\u6dfb\u52a0\u4e86 AcceptLevels\u00a0\u5c5e\u6027\uff0c\u4ee5\u4fbf\u5c06\u4e0d\u540c\u7c7b\u578b\u7684\u65e5\u5fd7\u8f93\u51fa\u5230\u4e0d\u540c\u7684\u76ee\u6807\u4e2d\u3002\u6bd4\u5982\uff0c\u6211\u4eec\u8981\u5c06 llError,llFatal\u00a0\u7c7b\u578b\u7684\u65e5\u5fd7\u8f93\u51fa\u5230\u4e00\u4e2a\u5355\u72ec\u7684\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u7528\u7c7b\u4f3c\u4e0b\u9762\u7684\u4ee3\u7801\u5b9e\u73b0\uff08\u4e2d\u95f4\u7701\u7565\u5176\u5b83\u4ee3\u7801\uff09\uff1a<\/p>\n

var\r\n  AErrorWriter:TQLogFileWriter;\r\nbegin\r\n...\r\nAErrorWriter:=TQLogFileWriter.Create('logs\\error.log');\r\nAErrorWriter.AcceptLevels:=[llError,llFatal];\r\n...\r\nLogs.Castor.AddWriter(AErrorWriter);\r\n...\r\nend;<\/pre>\n
\u3010\u6ce8\u610f\u3011<\/p>\n
\u5168\u5c40\u7684 Logs\u00a0\u5bf9\u8c61\u4e5f\u6709\u4e00\u4e2a AcceptLevels\u00a0\u5c5e\u6027\uff0c\u5b83\u7528\u6765\u63a7\u5236\u7684\u662f\u5168\u5c40\u65e5\u5fd7\u8f93\u51fa\u9009\u9879\uff0c\u800c TQLogWriter.AcceptLevels\u00a0\u53ea\u9488\u5bf9\u5f53\u524d\u7684\u5b9e\u4f8b\u751f\u6548\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5982\u679c\u6295\u9012\u7684\u65e5\u5fd7\u4e0d\u5728 Logs.AcceptLevels\u00a0\u91cc\uff0c\u5c31\u80af\u5b9a\u4e0d\u4f1a\u8bb0\u5f55\uff0c\u7136\u540e\u624d\u4f1a\u8f6e\u5230 TQLogWriter.AcceptLevels\u00a0\u5224\u65ad\u3002<\/p>\n
2\u3001\u589e\u52a0\u4e86\u4e00\u4e2a TQLogStringsWriter\uff0c\u8fd9\u4e2a\u662f\u7528\u6765\u5c06\u65e5\u5fd7\u5199\u5165\u5230\u652f\u6301 TStrings\u00a0\u7c7b\u578b\u7684\u5c5e\u6027\u7684\u63a7\u4ef6\u4e2d\uff0c\u4ee5\u4fbf\u5448\u73b0\u7ed9\u7528\u6237\u67e5\u770b\u7684\u65e5\u5fd7\u5199\u5165\u7c7b\u3002\u5efa\u8bae\u5f00\u542f\u61d2\u6c49\u6a21\u5f0f\uff08LazyWrite\uff09\uff0c\u8bbe\u7f6e\u5b83\u540e\uff0c\u65e5\u5fd7\u5199\u5165\u5ef6\u8fdf 100 ms\uff0c\u7136\u540e\u6279\u91cf\u66f4\u65b0\u5230 TStrings\u00a0\u4e2d\u3002\u4e00\u822c\u6765\u8bf4\uff0cTQLogStringsWriter\u00a0\u6211\u4eec\u8fd8\u4f1a\u540c\u65f6\u8bbe\u7f6e MaxItems\u00a0\u5c5e\u6027\uff0c\u4ee5\u907f\u514d\u65e5\u5fd7\u5360\u7528\u8fc7\u591a\u7684\u5185\u5b58\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/p>\n
var\r\n  AWriter:TQLogStringsWriter;\r\nbegin\r\n  AWriter := TQLogStringsWriter.Create;\r\n  AWriter.Items := Memo1.Lines;\r\n  AWriter.MaxItems := 100;\r\n  AWriter.LazyWrite := True;\r\n  Logs.Castor.AddWriter(AWriter);\r\nend;<\/pre>\n
\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u901a\u8fc7\u5c06 AWriter.Items\u00a0\u8d4b\u503c\u4e3a Memo1.Lines\uff0c\u4ece\u800c\u8868\u793a\u5c06\u65e5\u5fd7\u8f93\u51fa\u5230 Memo1\uff0c\u6700\u591a 100 \u6761\u65e5\u5fd7\uff0c\u5f00\u542f\u61d2\u6c49\u6a21\u5f0f\u3002\u8fd9\u91cc\u8981\u6ce8\u610f\u4e00\u70b9\uff0c\u4e00\u5b9a\u8981\u4fdd\u8bc1Memo1\u00a0\u4e0d\u4f1a\u63d0\u524d\u91ca\u653e\u6389\uff0c\u5426\u5219\uff0cAV \u9519\u8bef\u5728\u7b49\u7740\u4f60\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
QLog\u00a0\u6700\u8fd1\u505a\u4e86\u4e00\u4e9b\u66f4\u65b0\uff0c\u4e0b\u9762\u6f14\u793a\u4e0b\u66f4 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[69,8,135],"tags":[],"class_list":["post-4970","post","type-post","status-publish","format-standard","hentry","category-c-builder","category-delphi","category-qlog"],"views":7993,"_links":{"self":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4970","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4970"}],"version-history":[{"count":1,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4970\/revisions"}],"predecessor-version":[{"id":4971,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=\/wp\/v2\/posts\/4970\/revisions\/4971"}],"wp:attachment":[{"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4970"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4970"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.qdac.cc\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4970"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}