Example Analysis of springboot2 Integrated oauth2

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@ EnableOAuth3Client annotation and customized the relevant configuration

@ Bean public FilterRegistrationBean oauth3ClientFilterRegistration (OAuth3ClientContextFilter filter) {FilterRegistrationBean registration = new FilterRegistrationBean (); registration.setFilter (filter); registration.setOrder (- 100); return registration;} @ Bean @ ConfigurationProperties ("security.oauth3") public ClientResources trina () {return new ClientResources ();}

The following error will be reported after startup:

Description:The bean 'scopedTarget.oauth3ClientContext', defined in class path resource [org/springframework/boot/autoconfigure/security/oauth3/client/OAuth3RestOperationsConfiguration$SessionScopedConfiguration$ClientContextConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/security/oauth3/config/annotation/web/configuration/OAuth3ClientConfiguration$OAuth3ClientContextConfiguration.class] and overriding is disabled.Action:

There are two solutions: 1. Get rid of autoconfig dependence on spring-security-oauth3-autoconfigure 2 and use @ EnableAutoConfiguration to eliminate oauth3-related auto-assembly, which depends on the specific error message. As follows:

@ EnableAutoConfiguration (exclude = {org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration.class})

3. Add configuration spring.main.allow-bean-definition-overriding = true

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