使用Qt4調用REST服務

任何人都可以指向我使用Qt4調用REST服務的簡單方法嗎？我找不到有關如何做到這一點的任何體面的文檔。現在我有這樣的東西：使用Qt4調用REST服務

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;

我是否關閉？

這裏是我的調用代碼：

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); 
    } 
}

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2010-12-08 Kyle

你的功能接近調用REST服務時，我使用。我所做的是爲每個http動詞創建一個函數。

這是我的職位功能（注意，SSL和基本驗證支持）

void Http::post(QString &url, QString &user, QString &password, QString &data) 
{ 
    QSslConfiguration config(QSslConfiguration::defaultConfiguration()); 

    QNetworkRequest request; 


    request.setSslConfiguration(config); 

    request.setRawHeader("Authorization", "Basic " + 
         QByteArray(QString("%1:%2").arg(user).arg(password).toAscii().toBase64()) 
        ); 
    request.setRawHeader("Accept", "application/xml"); 
    request.setRawHeader("Content-Type", "application/xml"); 

    request.setUrl(QUrl(url)); 

    qDebug() << url; 

    connect(netManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(finished(QNetworkReply*))); 

    reply = netManager->post(request, data.toAscii()); 

    connect(reply, SIGNAL(downloadProgress(qint64,qint64)), this, SIGNAL(progress(qint64,qint64))); 
    connect(reply, SIGNAL(sslErrors(QList<QSslError>)), this, SLOT(sslError(QList<QSslError>))); 
    connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(networkError(QNetworkReply::NetworkError))); 
}

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2010-12-08 20:07:06 Raphael

這非常接近。我添加了我的調用代碼，以便您可以看到我想要做的事情。 – Kyle 2010-12-09 13:35:32

這裏是我拿......

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);

來源

2010-12-09 15:23:13

這裏是我結束了我解決問題：https://bitbucket.org/libki-kms/libki-client/src/917e8201c997a9f37b57420c0df68c8751527f2a/networkclient.cpp?at=master

感謝您的幫助！

來源

2014-06-24 11:18:51 Kyle

使用Qt4調用REST服務

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