{"id":2611,"date":"2011-02-26T17:19:00","date_gmt":"2011-02-26T09:19:00","guid":{"rendered":"http:\/\/edsionte.com\/techblog\/?p=2611"},"modified":"2011-03-01T21:02:57","modified_gmt":"2011-03-01T13:02:57","slug":"%e5%9f%ba%e4%ba%8eqt%e7%9a%84http%e7%bc%96%e7%a8%8b","status":"publish","type":"post","link":"http:\/\/edsionte.com\/techblog\/archives\/2611","title":{"rendered":"\u57fa\u4e8eQt\u7684Http\u7f16\u7a0b-\u57fa\u672c\u539f\u7406"},"content":{"rendered":"<p>\u5728Qt\u4e2d\uff0c\u4f7f\u7528QNetworkAccessManager\u7c7b\u5c31\u53ef\u4ee5\u5b8c\u6210\u57fa\u4e8eHttp\u534f\u8bae\u7684\u6570\u636e\u4e0a\u4f20\u548c\u4e0b\u8f7d\uff0c\u8be5\u7c7b\u65e2\u53ef\u4ee5\u53d1\u9001\u7f51\u7edc\u8bf7\u6c42\uff0c\u4e5f\u53ef\u4ee5\u63a5\u6536\u7f51\u7edc\u56de\u590d\u3002\u800c\u5177\u4f53\u7684\u7f51\u7edc\u8bf7\u6c42\u662f\u901a\u8fc7QNetworkRequest\u7c7b\u53d1\u9001\u7684\uff0c\u5177\u4f53\u7684\u7f51\u7edc\u56de\u590d\u662f\u901a\u8fc7QNetworkReply\u7c7b\u6765\u63a5\u6536\u7684\u3002<\/p>\n<p>\u672c\u6587\u5c06\u5229\u7528\u4e0a\u9762\u7684\u51e0\u4e2a\u7c7b\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684Http\u5ba2\u6237\u7aef\uff0c\u4ece\u6307\u5b9a\u7684\u7f51\u5740\u4e0b\u8f7d\u6570\u636e\u3002<\/p>\n<h3>\u57fa\u672c\u539f\u7406<\/h3>\n<p>\u7531\u4e8eQNetworkAccessManager\u7c7b\u4e2d\u5305\u542b\u4e86\u4e00\u7ec4\u6807\u51c6\u7684\u6570\u636e\u8bf7\u6c42\u51fd\u6570\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u8be5\u7c7b\u7684\u5bf9\u8c61\u53d1\u9001\u6570\u636e\u8bf7\u6c42\u51fd\u6570\uff1b\u6bcf\u4e2a\u8bf7\u6c42\u51fd\u6570\u6267\u884c\u5b8c\u6bd5\u65f6\u90fd\u56de\u8fd4\u56de\u4e00\u4e2aQNetworkReply\u5bf9\u8c61\u3002\u5f53\u6240\u6709\u8bf7\u6c42\u7684\u6570\u636e\u90fd\u5230\u8fbe\u672c\u5730\u540e\uff0c\u5c06\u5f15\u53d1\u4e00\u4e2afinished()\u4fe1\u53f7\uff0c\u8be5\u4fe1\u53f7\u5173\u8054\u4e86\u4e00\u4e2a\u5904\u7406\u8fd4\u56de\u6570\u636e\u7684\u69fd\u51fd\u6570\u3002\u5177\u4f53\u7684\u5b9e\u73b0\u53ef\u53c2\u8003\u4e0b\u8ff0\u4ee3\u7801\uff1a<\/p>\n<pre class=\"brush:c\">Widget::Widget(QWidget *parent) :\r\n    QWidget(parent),\r\n    ui(new Ui::Widget)\r\n{\r\n    ui-&gt;setupUi(this);\r\n\r\n    manager = new QNetworkAccessManager(this);\r\n    connect(manager, SIGNAL(finished(QNetworkReply *)),\r\n            this, SLOT(replyFinished(QNetworkReply*)));\r\n\r\n    manager-&gt;get(QNetworkRequest(QUrl(\r\n            \"http:\/\/www.kerneltravel.net\/\")));\r\n}<\/pre>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c\u4e0a\u8ff0\u7684\u57fa\u672c\u539f\u7406\u5927\u90e8\u5206\u90fd\u5728\u6784\u9020\u51fd\u6570\u4e2d\u5b8c\u6210\u3002\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2aQNetworkAccessManager\u5bf9\u8c61manager\uff1b\u63a5\u7740\u5c06manager\u6240\u5f15\u53d1\u7684finished()\u4fe1\u53f7\u4e0ereplyFinished()\u69fd\u8fdb\u884c\u5173\u8054\uff1b\u6700\u540e\u901a\u8fc7get()\u53d1\u9001\u6570\u636e\u8bf7\u6c42\u3002<\/p>\n<p>get()\u7528\u4e8e\u53d1\u9001\u8bf7\u6c42\u5e76\u83b7\u5f97\u76ee\u6807\u5730\u5740\u4e2d\u7684\u6570\u636e\uff0c\u5177\u4f53\u7684\u6570\u636e\u8bf7\u6c42\u5219\u662f\u901a\u8fc7\u521b\u5efa\u4e00\u4e2aQNetworkRequest\u7c7b\u7684\u5bf9\u8c61\u800c\u5b8c\u6210\u7684\u3002\u53ea\u8981\u6570\u636e\u8bf7\u6c42\u53d1\u9001\u6210\u529f\uff0c\u5219\u5f00\u59cb\u4e0b\u8f7d\u6570\u636e\u3002\u5f53\u6240\u6709\u7684\u6570\u636e\u4e0b\u8f7d\u5b8c\u6210\u540e\uff0c\u5c31\u8fd4\u56de\u4e00\u4e2aQNetworkReply\u7c7b\u578b\u7684\u5bf9\u8c61\u3002\u540c\u65f6manager\u5bf9\u8c61\u5c06\u53d1\u9001\u4e00\u4e2afinished()\u4fe1\u53f7\uff0c\u5f15\u53d1replyFinished\u69fd\u51fd\u6570\u7684\u6267\u884c\u3002<\/p>\n<p>\u5f53\u6267\u884c\u4e0a\u8ff0\u7684\u69fd\u51fd\u6570\u65f6\uff0c\u5c31\u8bf4\u660e\u76ee\u6807\u5730\u5740\u7684\u6570\u636e\u5df2\u7ecf\u4e0b\u8f7d\u5b8c\u6bd5\u3002\u6b64\u65f6\u69fd\u51fd\u6570\u8981\u505a\u7684\u5c31\u662f\u5c06\u8fd9\u4e9b\u6570\u636e\u663e\u793a\u51fa\u6765\u3002\u8fd9\u91cc\u6211\u4eec\u53ea\u53ea\u5bf9\u6587\u672c\u6570\u636e\u8fdb\u884c\u8f6c\u6362\u3002\u5bf9\u8fd9\u4e9b\u6570\u636e\u7684\u8f6c\u6362\u52a8\u4f5c\u53ef\u53c2\u8003\u4e0b\u8ff0\u7684\u4ee3\u7801\uff1a<\/p>\n<pre class=\"brush:c\">void Widget::replyFinished(QNetworkReply *reply)\r\n{\r\n    QTextCodec *codec = QTextCodec::codecForName(\"utf8\");\r\n\r\n    QString all = codec-&gt;toUnicode(reply-&gt;readAll());\r\n    ui-&gt;textEdit-&gt;setText(all);\r\n    reply-&gt;deleteLater();\r\n}<\/pre>\n<p>\u4e3a\u4e86\u80fd\u591f\u6b63\u786e\u663e\u793a\u4e2d\u6587\uff0c\u6211\u4eec\u521b\u5efaQTextCodec\u5bf9\u8c61\u3002\u5229\u7528readAll\u51fd\u6570\u53ef\u4ee5\u8bfb\u53d6\u6570\u636e\u8bf7\u6c42\u8fd4\u56de\u7684\u6240\u6709\u6570\u636e\uff0c\u5e76\u4e14\u5229\u7528toUnicode\u51fd\u6570\u5c06\u8fd9\u4e9b\u6570\u636e\u8f6c\u6362\u6210QString\u7c7b\u578b\u3002\u6700\u540e\u5728\u7528\u6237\u754c\u9762\u4e2d\u7684\u6587\u672c\u7f16\u8f91\u5668\u4e2d\u663e\u793a\u51fa\u6765\u3002<\/p>\n<p>\u6309\u7167\u4e0a\u9762\u7684\u65b9\u6cd5\u5c31\u53ef\u4ee5\u4e0b\u8f7d\u6307\u5b9a\u5730\u5740\u7684\u6570\u636e\u3002\u5982\u4e0b\u56fe\uff1a<\/p>\n<p><a rel=\"attachment wp-att-2618\" 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Qt Assistant<\/strong><\/em><\/p>\n<p><em><strong>2.\u00a0<a href=\"http:\/\/www.yafeilinux.com\/?p=734\">http:\/\/www.yafeilinux.com\/?p=734<\/a><\/strong><\/em><\/p>\n<p><em><strong>3. C++ GUI Qt 4\u7f16\u7a0b\uff08\u7b2c\u4e8c\u7248\uff09\uff1b \u7535\u5b50\u5de5\u4e1a\u51fa\u7248\u793e\uff1bBlanchette\uff0cJ\uff0cSummerfield\uff0cM \u8457\uff1b\u95eb\u950b\u6b23 \u7b49\u8bd1\uff1b<\/strong><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Qt\u4e2d\uff0c\u4f7f\u7528QNetworkAccessManager\u7c7b\u5c31\u53ef\u4ee5\u5b8c\u6210\u57fa\u4e8eHttp\u534f\u8bae\u7684\u6570\u636e\u4e0a\u4f20\u548c\u4e0b\u8f7d\uff0c\u8be5\u7c7b\u65e2\u53ef [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[199],"tags":[202,108,200],"class_list":["post-2611","post","type-post","status-publish","format-standard","hentry","category-gui","tag-gui","tag-linux","tag-qt"],"views":7675,"_links":{"self":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts\/2611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/comments?post=2611"}],"version-history":[{"count":0,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/posts\/2611\/revisions"}],"wp:attachment":[{"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/media?parent=2611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/categories?post=2611"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/edsionte.com\/techblog\/wp-json\/wp\/v2\/tags?post=2611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}