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RequestDispatcher rd = getServletContext().getRequestDispatcher("url");
rd.forward(requestVar,requestVar); //´«µÝservletµÄÈë¿Ú²ÎÊý
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getServletContext().getRequestDispatcher("url").forward(requestVar,responseVar);
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2.ServletContextµÄgetNamedDispatcher()
3.ServletRequestµÄgetRequestDispatcher()
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(2).response.sendRedirect(url);
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<html>
<head>
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