jsp - Using sendRedirect - hide parameters -

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my problem is: have jsp application play role of tunnel redirect process externel application after gets login cookie. thus, jsp application doesn't contain forms. http://xxxxx:8080/who/app?login=" + userid); ?> told you, xxxxx remote host. when execute process, can see "userid" in url. question here how can hide login url configurutaion described.

thank in advance


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