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15.9. CAPTCHA
Though not strictly part of the security API, Seam provides a built-in CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) algorithm to prevent automated processes from interacting with your application.
15.9.1. Configuring the CAPTCHA Servlet 复制链接链接已复制到粘贴板!
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To use CAPTCHA, you need to configure the Seam Resource Servlet, which provides your pages with CAPTCHA challenge images. Add the following to
web.xml
: