谁能指出我使用Qt4调用REST服务的简单方法?我找不到有关如何执行此操作的任何体面的文档。现在我有类似的东西:
int NetworkClient::attemptLogin( QString username, QString password, int & error ) {
QNetworkAccessManager *manager = new QNetworkAccessManager(this);
QObject::connect(manager, SIGNAL(finished(QNetworkReply *)), SLOT(slotRequestFinished(QNetworkReply *)));
QNetworkRequest request;
request.setUrl(QUrl("http://192.168.20.155:3000/api/rest/user?id=" + username));
request.setHeader(QNetworkRequest::ContentTypeHeader, "text/xml");
QNetworkReply *reply = 0;
reply = manager->get(request);
qDebug() << reply;
我什至靠近吗?
这是我的呼叫代码:
void LoginWindow::attemptLogin() {
int loginError;
QString username = usernameField->text();
QString password = passwordField->text();
int minutes = net.attemptLogin( username, password, loginError );
if ( minutes ) {
attemptLoginSuccess( username, password, minutes );
} else {
attemptLoginFailure( loginError );
}
}
最佳答案
这是我的...
QNetworkReply* Gateway::performPost(QString service, QMap<QString, QString>params)
{
qDebug() << QString("Post with params #").append(service) << params;
//Initialize uri
QString uri = Gateway::SERVICE_BASE_URI;
QNetworkAccessManager oManager;
//Connect signal
connect(oManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(finished(QNetworkReply*)));
//Construct request
QUrl res = QUrl(
uri.append(service)
);
QUrl query;
QMapIterator<QString, QString> i(params);
while(i.hasNext()) {
i.next();
query.addEncodedQueryItem(QUrl::toPercentEncoding(i.key()), QUrl::toPercentEncoding(i.value()));
}
//Do request
QNetworkRequest postRequest = QNetworkRequest(res);
//Return QNetworkReply Object
return oManager.post(postRequest, query.encodedQuery());
}
//Implementation
QMap<QString,QString> map;
map.insert("foo", "bar");
map.insert("bar", "foo");
//Perform the POST request
oGateway.performPost("foo/bar", map);