[英]Correct format for HTTP POST using QNetworkRequest
我正在嘗試向Web服務發送JSON查詢,並繼續將內部服務器錯誤作為對查詢的響應。
這是我要發送的內容:
POST /api/1.7/webservice.asmx HTTP/1.1
Host: www.superService.com
User-Agent: My app name v0.1
X-Custom-User-Agent: My app name v0.1
Content-Type: application/json
Content-Length:81
{"method":"AuthenticatePlain","loginName":"username@domain.com","password":"mypass"}
這應該發送到https://www.superService.com/api/1.7/ssapi.asmx
在准備QNetworkRequest
,使用什么方法來插入行
POST /api/1.7/webservice.asmx HTTP / 1.1 ?
QNetworkRequest
對象中是否包含完整的標頭?
JSON數據應該在QNetworkRequest
對象中,還是作為QNetworkAccessManager::post()
方法中的第二個參數添加到帖子中?
這是我在on_btnLogin_clicked()
插槽中的當前代碼:
connect(m_qnam, SIGNAL(finished(QNetworkReply*)),
this, SLOT(handleNetworkData(QNetworkReply*)));
connect(m_qnam,SIGNAL(sslErrors(QNetworkReply*,QList<QSslError>)),
this, SLOT(handleSSLErrors(QNetworkReply*)));
QString baseString = "";
baseString.append(QString("POST /api/1.7/webservice.asmx HTTP/1.1\r\n").toUtf8());
baseString.append(QString("www.superService.com\r\n").toUtf8());
baseString.append(QString("User-Agent: My app name v0.1\r\n").toUtf8());
baseString.append(QString("X-Custom-User-Agent: My app name v0.1\r\n").toUtf8());
baseString.append(QString("Content-Type: application/json\r\n").toUtf8());
QString jsonString = QString("{");
jsonString.append("\"method\":");
jsonString.append("\"AuthenticatePlain\"");
jsonString.append(",\"loginName\":");
jsonString.append("\"username@domain.com\"");
jsonString.append(",\"password\":");
jsonString.append("\"mypass\"");
jsonString.append("}");
QByteArray json = jsonString.toUtf8();
baseString.append(QString("Content-Length:").toUtf8());
baseString.append(QString::number(json.length()));
baseString.append("\r\n").toUtf8();
baseString.append(QString("\r\n").toUtf8());
baseString.append(json);
request = QNetworkRequest(QUrl("https://www.superService.com/api/1.7/ssapi.asmx"));
request.setRawHeader()
qDebug() << "Base String: "<< baseString;
m_qnam->post(request,baseString.toUtf8());
這不是編寫HTTP請求的正確方法。 以下代碼更正確:
connect(m_qnam, SIGNAL(finished(QNetworkReply*)), this, SLOT(handleNetworkData(QNetworkReply*)));
connect(m_qnam,SIGNAL(sslErrors(QNetworkReply*,QList<QSslError>)), this, SLOT(handleSSLErrors(QNetworkReply*)));
// Build your JSON string as usual
QByteArray jsonString = "{\"method\":\"AuthenticatePlain\",\"loginName\":\"username@domain.com\",\"password\":\"mypass\"}";
// For your "Content-Length" header
QByteArray postDataSize = QByteArray::number(jsonString.size());
// Time for building your request
QUrl serviceURL("https://www.superService.com/api/1.7/ssapi.asmx");
QNetworkRequest request(serviceURL);
// Add the headers specifying their names and their values with the following method : void QNetworkRequest::setRawHeader(const QByteArray & headerName, const QByteArray & headerValue);
request.setRawHeader("User-Agent", "My app name v0.1");
request.setRawHeader("X-Custom-User-Agent", "My app name v0.1");
request.setRawHeader("Content-Type", "application/json");
request.setRawHeader("Content-Length", postDataSize);
// Use QNetworkReply * QNetworkAccessManager::post(const QNetworkRequest & request, const QByteArray & data); to send your request. Qt will rearrange everything correctly.
QNetworkReply * reply = m_qnam->post(request, jsonString);
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