[FIXED] Can't be mapped a specific URL by Servlet

Issue

I've developed a Servlet which is mapped to URLs with the pattern as bellow.

urlPatterns = {"/dv/*" , "/dv/", "/dv*", "/dv/*/*"}

Everything is working like a charm, but i have a major problem with this URL http://localhost:6070/dv/test/MyProject?=&projectType=auto&{}, because of existing character "{" or "}" in URL. How can I deal with this problem? My web container is Tomcat v8, and I can't avoid from this character in the URL since I'm trying to proxy a third-party server, and I don't have access to modify the URLs before sending to the Servlet.

Solution

I found the solution. This problem boils down to Tomcat configuration; Therefore, I added relaxedQueryChars to my Tomcat's Connector tag, and my problem was solved, but the point is this attribute is just available in Tomcat 8.5.31 or later.

<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" maxPostSize="4194304" URIEncoding="UTF-8" bindOnInit="false" server="orca framework" relaxedQueryChars='[]|{}^&#x5c;&#x60;&quot;&lt;&gt;'/>

Answered By - peyman mahdikhani