How to use get request to filter Special characters in tomcat8

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Special character filtering of get request in tomcat8

Request contains special characters [] | {} failed to send get request:

Reason:

This is because Tomcat strictly follows the RFC3986 specification for access resolution, while the RFC3986 specification defines that Url can only contain letters (a-zA-Z), numbers (0-9),-_. ~ 4 special characters, and all reserved characters (the following characters are specified in RFC3986 as reserved characters:! *'();: @ & = + $, /? # []). The error is reported because "{" is not in the reserved field in RFC3986.

Resolve: