Invalid character found in request destination. Valid characters are defined in RFC 7230 and RFC 3986

problem :

Cause analysis :

Because The log shows that the request address contains illegal characters , appear 400 error

tomcat The higher version strictly follows RFC 3986 Standard resolution address . The specification only allows a-zA-Z 0-9 - _ . ~ And all reserved characters ! * ’ ( ) ; : @ & = + $ , / ? # [ ]

But the item appears in the parameters that initiate the request {}, So we need to configure it

resolvent ：

Most used methods on the Internet , take tomcat Medium server.xml Add the following configuration to the file ：

relaxedPathChars="|{}[],%" relaxedQueryChars="|{}[],%"

stay tomcat Make the following configuration in the configuration file , find tomcat The configuration of the server.xml The path is conf Under the folder

<Connector connectionTimeout="20000" port="8080" protocol="HTTP/1.1" redirectPort="8443" URIEncoding="UTF-8" relaxedPathChars="|{}[],%" relaxedQueryChars="|{}[],%"/>

Add the code in the red box Problem solving . Or replace the above code .