Qt实现网络数据传输

Qt使用post请求：

network_manager = new QNetworkAccessManager();

QNetworkRequest network_request;

QByteArray post_data;

 

//设置发送的数据

post_data.append("user=wangliang&");

post_data.append("password=111111&");

post_data.append("domain=sugon&");

post_data.append("client=windowstool&");

post_data.append("version=1.1.1.1");

//设置头信息

network_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");

network_request.setHeader(QNetworkRequest::ContentLengthHeader, post_data.length());

//设置url

network_request.setUrl(QUrl("http://10.0.33.5:80/cloudstor/index.php?r=api/user/login"));

 

connect(network_manager, &QNetworkAccessManager::finished, this, &HttpManager::replyFinished);

//发送请求

network_manager->post(network_request, post_data);

槽函数进行如下处理：

//获取响应的信息，状态码为200表示正常

QVariant status_code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute);

//无错误返回

if(reply->error() == QNetworkReply::NoError)

{

    QByteArray bytes = reply->readAll();  //获取字节

    QString result(bytes);  //转化为字符串

    qDebug()<<result;

}

else

{

    //处理错误

}

 

//收到响应，因此需要处理

delete reply;