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How to get the client address in a Servlet E-mail
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This Java tip illustrates a method of getting the client's address in a Servlet. In an embodiment developer may use this tip in their client server applications for knowing at the server end the address of the client which made the request.

    // This method is called by the servlet container to process a GET request.
    public void doGet(HttpServletRequest req, HttpServletResponse respthrows IOException {
    
        // Get client's IP address
        String addr = req.getRemoteAddr()// 123.123.123.123
    
        // Get client's hostname
        String host = req.getRemoteHost()// hostname.com
    }

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