Problem phenomena:
After the framework uses SSO (Spring Security OAuth2.0), the Token has been produced. When using the Token to call the interface in Postman, the console appears URI is not absolute error
Analysis of the problem:
Use breakpoints to discover that the URI received in createRequest is empty when the request is created. The first reaction is that there is a problem with the configuration. After checking the YML file, no problem is found

 
In this file, see

@Bean
protected JwtAccessTokenConverter jwtTokenConverter() {
   JwtAccessTokenConverter converter = new JwtAccessTokenConverter();
   converter.setSigningKey("test");
   return converter;
}

After the new step is commented out, add a symmetric key to the corresponding resource service, and use the PostMan call to succeed magically.
Actual reasons for follow-up research…