springboot版本从1.5.3升级2.2.x踩坑实录2--authenticationManager无法注入问题

1. 背景

   在升级springboot版本从1.5.13到2.2.x的过程中出现问题如下

   

***************************
APPLICATION FAILED TO START
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Description:
 
Field configurers in org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerEndpointsConfiguration required a bean of type 'org.springframework.security.authentication.AuthenticationManager' that could not be found.
 
The injection point has the following annotations:
    - @org.springframework.beans.factory.annotation.Autowired(required=true)
 
 
Action:
 
Consider defining a bean of type 'org.springframework.security.authentication.AuthenticationManager' in your configuration.

2. 解决方案：

    添加一下配置类WebSecurityConfig，代码如下：

/**
 * @Auther: duke
 * @Date: 2018-11-23 10:36
 * @Description:要求用户在进入你的应用的任何URL之前都进行验证
 */
@Configuration
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
 
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
    //.......
    //要求用户在进入你的应用的任何URL之前都进行验证
    //创建一个用户名是“user”，密码是“password”，角色是“ROLE_USER”的用户
    //启用HTTP Basic和基于表单的验证
    //Spring Security将会自动生成一个登陆页面和登出成功页面
}