Spring报错解决一览

问题一

springcloud-OAuth2.0配置的时候报错

Method springSecurityFilterChain in org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration required a bean of type 'org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoRestTemplateFactory' that could not be found.

The following candidates were found but could not be injected:
    - Bean method 'userInfoRestTemplateFactory' in 'ResourceServerTokenServicesConfiguration' not loaded because @ConditionalOnMissingBean (types: org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration; SearchStrategy: all) found beans of type 'org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration' org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration

Action:

Consider revisiting the entries above or defining a bean of type 'org.springframework.boot.autoconfigure.security.oauth2.resource.UserInfoRestTemplateFactory' in your configuration.

问题原因：

(1)做服务器端OAuth,引用了客户端的相关jar，并且还没有配置；

spring cloud security oauth2.0 默认是禁用Client模式进行授权的；Oauth2.0 client模式无法授权；

allowFormAuthenticationForClients()方法开启；

问题三：

{
    "timestamp": "2019-05-16T15:31:11.450+0000",
    "status": 401,
    "error": "Unauthorized",
    "message": "Unauthorized",
    "path": "/oauth/token"
}

解决： 这个一种情况是Basic用户名密码写错了，在拦截器BasicAuthenticationFilter中校验不通过抛出异常

{
    "error": "unsupported_grant_type",
    "error_description": "Unsupported grant type: password"
}

解答： AuthorizationServerEndpointsConfigurer类中获取所有的granter的时候，需要判断authenticationmananager是否为空，才能默认加载password权限分配器