從QNetworkReply讀取未解碼的數據

Question

是否可以從QNetworkReply讀取未解碼的數據？

響應使用gzip（ Content-Encoding：gzip HTTP頭） 編碼 ，但是當我調用readAll（）方法時，它返回解碼數據。 我需要原始的gzip壓縮數據，因為它是發送給我的。 有任何想法嗎？

Answer 1

您必須為自己設置QNetworkRequest的標頭：

 networkRequest.setRawHeader("Accept-Encoding", "gzip");

然后Qt在回復中沒有為你解碼。

我們可以在qhttpnetworkconnection.cpp的源代碼中看到 QHttpNetworkConnectionPrivate::prepareRequest ：

    // If the request had a accept-encoding set, we better not mess
    // with it. If it was not set, we announce that we understand gzip
    // and remember this fact in request.d->autoDecompress so that
    // we can later decompress the HTTP reply if it has such an
    // encoding.
    value = request.headerField("accept-encoding");
    if (value.isEmpty()) {
#ifndef QT_NO_COMPRESS
        request.setHeaderField("Accept-Encoding", "gzip");
        request.d->autoDecompress = true;
#else
        // if zlib is not available set this to false always
        request.d->autoDecompress = false;
#endif
    }