Qt Web 服务发布查询 [英] Qt Web Service post query

问题描述

我正在尝试使用这个 http://www.rcsb.org/pdb/software/rest.do 使用 Qt 的 REST 服务.我做了一些没有问题的获取请求，但是当我尝试对其高级搜索(这是一个 XML Web 服务)执行发布请求时，我没有得到任何响应.

I'm trying to use this http://www.rcsb.org/pdb/software/rest.do REST services with Qt. I did some get requests with no problem, but when I try to do a post request to its advanced search(which is an XML web service), I get no response.

这是我正在尝试的发布请求:

This is the post request I'm trying:

<orgPdbQuery>

<queryType>org.pdb.query.simple.StructureIdQuery</queryType>

<description>Simple query for a list of PDB IDs (1 IDs) : 3I5F</description>

<structureIdList>3I5F</structureIdList>

</orgPdbQuery>

这是我的请求代码:

void WindowWrapper::postRequest()
{
    QNetworkRequest request;

    QUrl res = QUrl(request_url_);

    QUrl query;
    query.addQueryItem("queryType","org.pdb.query.simple.StructureIdQuery");
    query.addQueryItem("structureIdList","3I5F");

    request.setHeader(QNetworkRequest::ContentTypeHeader, "application/octet-stream");
    request.setUrl(res);

    QObject::connect(network_, SIGNAL(finished(QNetworkReply*)),
                     this, SLOT(slotRequestFinished(QNetworkReply*)));

    network_->post(request, query.encodedQuery());
}


void WindowWrapper::slotRequestFinished(QNetworkReply* reply)
{
    if(reply->error() > 0)
    {
        qDebug() << reply->errorString();
    }
    else
    {
        QByteArray data = reply->readAll();            

        qDebug() << "Request successful!";
        qDebug() << data;             
    }
}

和方法调用:

    wrapper_->set_request_url("http://www.rcsb.org/pdb/rest/search/");
    wrapper_->postRequest();

在我的调试输出中，我得到了这个:

And on my debug output I get this:

Request successful! 
"" 

我也尝试过这个请求，但我仍然没有得到回应:

I also tried this for the request, but I still got no response:

void WindowWrapper::postRequest()
{
    QNetworkRequest request;

    request.setRawHeader("Content-Type", "text/xml;charset=UTF-8");
    request.setUrl(QUrl(request_url_));

    QString query =
        "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
        "<orgPdbQuery>"
        "<queryType>org.pdb.query.simple.StructureIdQuery</queryType>"
        "<description>Simple query for a list of PDB IDs (1 IDs) : 3I5F</description>"
        "<structureIdList>3I5F</structureIdList>"
        "</orgPdbQuery>";

    QObject::connect(network_, SIGNAL(finished(QNetworkReply*)),
                 this, SLOT(slotRequestFinished(QNetworkReply*)));

    network_->post(request, query.toUtf8());

}

有人知道我做错了什么吗?请...

Anyone knows what am I doing wrong? Please...

推荐答案

您提供的链接说查询数据必须以 XML 编码.

The link you gave says the query data has to be encoded in XML.

我不知道为什么，但该服务似乎只允许 application/x-www-form-urlencoded 作为 Content-Type，所有其他类型触发重定向到rest.do"页面.

And I don't know why, but the service seems to only allow application/x-www-form-urlencoded as Content-Type, all other types trigger a redirection to the 'rest.do' page.

这篇关于Qt Web 服务发布查询的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！