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Get client IP address from JSPTag(s): Servlet/JSP

out.print( request.getRemoteAddr() );
out.print( request.getRemoteHost() );

You may not get the real client IP if a the client is behind a proxy, you will get the IP of the proxy and not the client. However, the proxy may include the requesting client IP in a special HTTP header.

out.print( request.getHeader("x-forwarded-for") );

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