基于Qt的Http请求小程序

#include "HttpFun.h" #include <QTextCodec> const int nHTTP_TIME = 10000; //10秒 HttpFun::HttpFun(QObject *parent) : QObject(parent) { m_pNetworkManager = new QNetworkAccessManager(this); m_pNetworkReply = NULL; m_pTimer = new QTimer; connect(m_pTimer,SIGNAL(timeout()),this,SLOT(slot_requestTimeout()));//超时信号 } //发起请求 void HttpFun::sendRequest(const QString &strUrl) { m_strUrl = strUrl; QNetworkRequest netRequest; netRequest.setHeader(QNetworkRequest::ContentTypeHeader,"application/x-www-form-urlencoded"); netRequest.setUrl(QUrl(strUrl)); //地址信息 if(strUrl.toLower().startsWith("https"))//https请求，需ssl支持(下载openssl拷贝libeay32.dll和ssleay32.dll文件至Qt bin目录或程序运行目录) { QSslConfiguration sslConfig; sslConfig.setPeerVerifyMode(QSslSocket::VerifyNone); sslConfig.setProtocol(QSsl::TlsV1_1); netRequest.setSslConfiguration(sslConfig); } // QString strBody; //http body部分，可封装参数信息 // QByteArray contentByteArray = strBody.toLatin1();//转成二进制 // m_pNetworkReply = m_pNetworkManager->post(netRequest,contentByteArray);//发起post请求 m_pNetworkReply = m_pNetworkManager->get(netRequest); //发起get请求 connect(m_pNetworkReply,SIGNAL(finished()),this,SLOT(slot_requestFinished())); //请求完成信号 m_pTimer->start(nHTTP_TIME); } //请求结束 void HttpFun::slot_requestFinished() { m_pTimer->stop();//关闭定时器 QByteArray resultContent = m_pNetworkReply->readAll(); QTextCodec* pCodec = QTextCodec::codecForName("UTF-8"); QString strResult = pCodec->toUnicode(resultContent); int nHttpCode = m_pNetworkReply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();//http返回码 if(nHttpCode == 200)//成功 { emit signal_requestFinished(true,strResult);//请求成功 } else { emit signal_requestFinished(false,strResult);//请求失败 } m_pNetworkReply->deleteLater(); this->deleteLater(); //释放内存 } //请求超时 void HttpFun::slot_requestTimeout() { emit signal_requestFinished(false,"timeout");//请求失败 m_pNetworkReply->deleteLater(); this->deleteLater();//释放内存 }