Qt post http请求使用

#include "mainwindow.h"
#include "ui_mainwindow.h"


MainWindow::MainWindow(QWidget *parent) :
	QMainWindow(parent),
	ui(new Ui::MainWindow)
{
	ui->setupUi(this);

	//网络载体
	networkAccessManager = new QNetworkAccessManager(this);


	//网络载体的响应接收信号，与响应接收槽绑定
	connect(networkAccessManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(SltLoginReplay(QNetworkReply*)));
}

void MainWindow::SltLoginReplay(QNetworkReply *reply)
{
	int statusCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();

	qDebug() << "statusCode:" << statusCode;

	if(reply->error() == QNetworkReply::NoError)
	{
			ui->textBrowser->setText(QString(reply->readAll()));
	}
	else
	{
			qDebug() << "=========";
	}

	reply->deleteLater();
}

MainWindow::~MainWindow()
{
	delete ui;
}

void MainWindow::on_pushButton_clicked()
{
	ui->textBrowser->clear();

	QString strUserInfo = QString("name=&password=");

	QByteArray content = strUserInfo.toUtf8();
	int contentLength = content.length();

	QNetworkRequest netReq;
	netReq.setUrl(QUrl("server ip address"));
	netReq.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
	netReq.setHeader(QNetworkRequest::ContentLengthHeader, contentLength);


	// 发送参数// 将用户名和密码发送至web服务器进行验证
	networkAccessManager->post(netReq, content);

}

void MainWindow::on_pushButton_2_clicked()
{
	ui->textBrowser->clear();
	QNetworkRequest request;
	request.setUrl(QUrl("http://dict.baidu.com/s?wd=name"));

	networkAccessManager->get(request);
}