码云地址：https://gitee.com/lpxs/lp-springcloud.git 有问题可以多沟通：136358344@qq.com。

由于使用Enableoauth2sso注解一直报错，报错原因见上一篇文章《springboot2集成oauth2坑一》 后面换成了@EnableOAuth2Client注解，并自定义了相关配置

 @Bean
    public FilterRegistrationBean oauth2ClientFilterRegistration(OAuth2ClientContextFilter filter) {
        FilterRegistrationBean registration = new FilterRegistrationBean();
        registration.setFilter(filter);
        registration.setOrder(-100);
        return registration;
    }

    @Bean
    @ConfigurationProperties("security.oauth2")
    public ClientResources trina() {
        return new ClientResources();
    }

启动后会报下面错误：

Description:

The bean 'scopedTarget.oauth2ClientContext', defined in class path resource [org/springframework/boot/autoconfigure/security/oauth2/client/OAuth2RestOperationsConfiguration$SessionScopedConfiguration$ClientContextConfiguration.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/security/oauth2/config/annotation/web/configuration/OAuth2ClientConfiguration$OAuth2ClientContextConfiguration.class] and overriding is disabled.

Action:

这个有两种方案： 1、去掉autoconfig依赖spring-security-oauth2-autoconfigure 2、使用@EnableAutoConfiguration来排除掉oauth2相关自动装配，这个得根据具体报错信息来。 如下：

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

3、增加配置spring.main.allow-bean-definition-overriding =true