4.2 Feign interceptor
4.2.1 Defining Feign blocker
use among micro feign remote service calls, using remote call feign interceptors carry JWT.
Add common project dependency :
<dependency>
<the groupId> org.springframework.cloud </ the groupId>
<the artifactId> Cloud-Spring-Starter-openfeign </ the artifactId>
</ dependency>
Interceptor
FeignClientInterceptor
implement the interface, the overridden method. feign each remote call will be called apply this method
to do two things
// use RequestContextHolder tool to obtain request-related variables
ServletRequestAttributes the Attributes = (ServletRequestAttributes)
RequestContextHolder.getRequestAttributes ();
Get all the headers
Where Bean is defined by where interceptors
In spring boot management courses start classes inside
Course management and cms services start.
Cycle several times before to get the authorization to go
here because of an error to request additional micro service
this is the address of another micro-services. Request additional services are required to carry micro token.
restTemplate need to think before carrying token request.
In order to quickly resolve this error. We do not verify the address to which the rule
to restart the program management services
