参数方法
<jsp:forward page="url">
<jsp:param name="parametername" value="parametervalue"/>
</jsp:forward>
or
response.sendRedirect("url?name=value.....")
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<jsp:forward page="url">
<jsp:param name="parametername" value="parametervalue"/>
</jsp:forward>
or
response.sendRedirect("url?name=value.....")
