QT之QNetworkAccessManager_代码007(未授权)

本文介绍: QT之QNe t workAcce ssMana g e r

1）QNe t workRe ply *post(const QNe two rkReque s t &request, const QBy t eArra y &data)
该函数用于发送 HTTP POST 请求，将数据作为请求体发送。

2）QNe tworkRe ply *put(const QNe tworkReques t &request, const QByteArray &a mp;data)
该函数用于发送 HTTP PUT 请求，将数据作为请求体发送。

3）QNetworkReply *get(const QNetworkRequest &a mp;request)
该函数用于发送 HTTP GET 请求，不发送任何数据。

4）QNetworkReply *deleteResource(const QNetworkRequest &request)
该函数用于发送 HTTP DELETE 请求，删除指定的资源。

5）QNetworkReply *head(const QNetworkRequest &am p;request)
该函数用于发送 HTTP HEAD 请求，仅获取资源的响应头信息，而不获取响应体。

#include <QNetworkAccessManager>  
#include <QNetworkRequest>  
#include <QNetworkReply>  
#include <QByteArray>  
  
QNetworkAccessManager *manager = new QNetworkAccessManager(this);  
  
QNetworkRequest request(QUrl("http://example.com/post"));  
request.setMethod(QNetworkRequest::PostMethod);  
  
QByteArray postData = "key=value";  
request.setRawHeader("Content-Type", "application/x-www-form-urlencoded");  
  
QNetworkReply *reply = manager->post(request, postData);  
  
connect(reply, &QNetworkReply::finished, this, [reply]() {  
    if (reply->error() != QNetworkReply::NoError) {  
        qDebug() << "Error:" << reply->errorString();  
    } else {  
        qDebug() << "Response:" << reply->readAll();  
    }  
    delete reply;  
});

#include <QNetworkAccessManager>  
#include <QNetworkRequest>  
#include <QNetworkReply>  
#include <QUrlQuery>  
  
QNetworkAccessManager *manager = new QNetworkAccessManager(this);  
  
QUrl url("http://example.com/get");  
QUrlQuery query;  
query.addQueryItem("key1", "value1");  
query.addQueryItem("key2", "value2");  
url.setQuery(query);  
  
QNetworkRequest request(url);  
request.setMethod(QNetworkRequest::GetMethod);  
  
QNetworkReply *reply = manager->get(request);  
  
connect(reply, &QNetworkReply::finished, this, [reply]() {  
    if (reply->error() != QNetworkReply::NoError) {  
        qDebug() << "Error:" << reply->errorString();  
    } else {  
        qDebug() << "Response:" << reply->readAll();  
    }  
    delete reply;  
});