spider.py 文件源码

def parse(self, response):
        webpage = response.webpage
        frame = webpage.mainFrame()

        name_input = frame.findFirstElement('#the-basics + div .well input')
        name_input.setAttribute('value', "World")
        # Trigger change event.
        name_input.evaluateJavaScript("""
            var event = document.createEvent("HTMLEvents");
            event.initEvent("change", false, true);
            this.dispatchEvent(event);
        """)

        # Let WebKit run.
        yield deferLater(reactor, 0, lambda: None)

        h1 = frame.findFirstElement('#the-basics + div .well h1')
        text = h1.toPlainText()
        returnValue([AngularJSHelloText(text=text)])