前后端分离，tomcat特殊字符不识别问题

<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" relaxedQueryChars="[]|{}^&#x5c;&#x60;&quot;&lt;&gt;" redirectPort="8443" />

修改server.xml为上面代码。加入了 

relaxedQueryChars="[]|{}^\`"<>"