是否可以从一个网页中获取数据并生成另一个（要打印的网页）而不会受到服务器的干扰？

Question

我正在尝试从HTML中获取数据并从该数据生成报告以进行打印，因为互联网连接不是持久的，因此重要的是仅在客户端（即Web浏览器）上生成打印格式的报告。

Answer 1

It is if the page with data supports CORS

http://en.wikipedia.org/wiki/Cross-Origin_Resource_Sharing

Otherwise you hit the browser security limitations.

If you do not control the page providing data it probably won't work.

Answer 2

If the data in the original HTML is sufficiently regular that you can parse it with reliability, it is possible to write a browser-resident bookmarklet that will mangle the DOM in any way you choose; if you packed enough logic into the bookmarklet, you could even delete the original, keep the data, and create a completely new page with the data, rendering from templates.

This is not, however, your basic Javascript app. Bookmarklets are something of a Dark Art.

Answer 3

Generate BOTH the screen and print versions from the server at the same time. Enclose different parts in DIVs with class="NotOnPrint" for the screen-only stuff, class="NotOnScreen" for the print-only stuff, and nothing extra for items that should appear on both screen and print. Then use this CSS:

@media screen { .NotOnScreen { display: none; } } @media print { .NotOnPrint { display: none; } }