[Help]Is it possible to using % in uri?

[roy huang]

Hi,all:
    I am using a control to download file,when file name is non-ascii,it will generate 
the url like:
http://localhost:8080/Download/ID041012155059812154/$File/%u6279%u6587%u5904%u7406%u4EBA.xls?OpenElement&1097572646
But tomcat will return http 400 Invalid URI error.

    I check the maillist found % is not allow in URI for Tomcat,but I can't modified 
this control,so does any way to allow tomcat receive this url and allow application 
itself to decode the url?

    Please Help!

    Roy Huang