使用硒从页面中保存图像 [英] Using selenium to save images from page

问题描述

我正在使用 Selenium &谷歌浏览器驱动程序以编程方式打开页面.在每个页面上都有一个我想下载的动态生成的图像.目前，我正在等待页面加载完成，然后我获取图像 URL 并使用 System.Net.WebClient 下载它.

I'm using Selenium & Google Chrome Driver to open pages programatically. On each page there is a dynamically generated image which I'd like to download. At the moment, I'm waiting for the page to finish loading, then I grab the image URL and download it using System.Net.WebClient.

这很好用，只是我下载了两次图像 - 一次在浏览器中，一次在 WebClient 中.问题是每张图片大约 15MB，下载两次加起来很快.

That works fine except I'm downloading the images twice - once in the browser, once with WebClient. The problem is that each image is roughly 15MB and downloading twice adds up quickly.

那么 - 是否可以直接从 Google Chrome 抓取图像?

So - is it possible to grab the image straight from Google Chrome?

推荐答案

您可以使用 this 技术.它运行名为Block Image"的 Google Chrome 扩展程序.这样就不会使用 chrome 下载图像，只需使用其 URL & 像往常一样下载图像即可.System.Net.WebClient.

You can block images from being downloaded in Google Chrome using this technique. It runs a Google Chrome extension called "Block Image". This way the image won't be downloaded using chrome, and it's just a matter of downloading the image as normal using its URL & System.Net.WebClient.

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