JSP编写，防止目前流行的挂马方式，对网页起到一定的防黑和防马作用，属于非常使用的网页工具，不一定适合所有网站-JSP prepared to prevent the hanging horse currently popular way of Hacking on the Web and play a certain role in anti-horse, are very to-use web tools, not necessarily suitable for all sites