wt - 使用wt上传文件

Question

我是 WT 的新手，我正在尝试上传文件示例。
当我单击发送按钮时，代码工作正常，文件进度条运行到 100%，但我不确定它上传到哪里？我们可以定义在某个路径上传..

class HelloApplication: public WApplication {
public:
    HelloApplication(const WEnvironment& env);

private:

    WPushButton *uploadButton;
    Wt::WFileUpload *fu;

    void greet();
};

HelloApplication::HelloApplication(const WEnvironment& env) :
        WApplication(env) {
    root()->addStyleClass("container");
    setTitle("Hello world");       // application title

    fu = new Wt::WFileUpload(root());
    fu->setFileTextSize(50); // Set the maximum file size to 50 kB.
    fu->setProgressBar(new Wt::WProgressBar());
    fu->setMargin(10, Wt::Right);

    // Provide a button to start uploading.
    uploadButton = new Wt::WPushButton("Send", root());
    uploadButton->setMargin(10, Wt::Left | Wt::Right);

    // Upload when the button is clicked.

    uploadButton->clicked().connect(this, &HelloApplication::greet);
}

void HelloApplication::greet() {
    fu->upload();
    uploadButton->disable();

}

WApplication *createApplication(const WEnvironment& env) {

    return new HelloApplication(env);
}

int main(int argc, char **argv) {
    return WRun(argc, argv, &createApplication);
}

Answer 1

当文件完成时，WFileUpload 将触发一个信号 (uploaded())。然后查看 spoolFileName() 以获取本地磁盘上文件的文件名。也可以监听 fileTooLarge()，因为它会通知您上传失败。

WFileUpload 的手册里有很多资料和一个代码示例:
http://www.webtoolkit.eu/wt/doc/reference/html/classWt_1_1WFileUpload.html