Java Spring需要一个类型为'；AuthenticationManager'；

在另一个项目中实现之前，我一直在尝试按照一个教程设置演示，以帮助我理解本地机器上的SSO。我遇到了一个让我陷入困境的问题。我收到一个错误，告诉我添加一个bean。请让我知道我缺少什么代码。我无法让程序运行

文件系统树

AuthApplication.java

package com.spud.auth;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;

@SpringBootApplication
@EnableResourceServer
public class AuthApplication {

    public static void main(String[] args) {
        SpringApplication.run(AuthApplication.class, args);
    }

    @Configuration
    protected static class LoginConfig extends WebSecurityConfigurerAdapter {

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.requestMatchers().antMatchers("/login", "/oauth/authorize").and().authorizeRequests().anyRequest()
                    .authenticated().and().formLogin().permitAll();
        }

        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.inMemoryAuthentication().withUser("user").password("password").roles("USER");
        }
    }

    @Configuration
    @EnableAuthorizationServer
    protected static class OAuth2Config extends AuthorizationServerConfigurerAdapter {
        @Autowired
        private AuthenticationManager authenticationManager;

        @Override
        public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
            clients.inMemory().withClient("foo").secret("bar")
                    .authorizedGrantTypes("authorization_code", "refresh_token", "password").scopes("user_info")
                    .autoApprove(true);
        }

        @Override
        public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
            oauthServer.tokenKeyAccess("permitAll()").checkTokenAccess("isAuthenticated()");
        }

        @Override
        public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
            endpoints.authenticationManager(authenticationManager);
        }
    }
}

package com.spud.controllers;

import java.security.Principal;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class UserController {

    @GetMapping("/user/me")
    public Principal user(Principal principal) {
        return principal;
    }
}

UserController.java

package com.spud.auth;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.configurers.ClientDetailsServiceConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configuration.AuthorizationServerConfigurerAdapter;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableAuthorizationServer;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerEndpointsConfigurer;
import org.springframework.security.oauth2.config.annotation.web.configurers.AuthorizationServerSecurityConfigurer;

@SpringBootApplication
@EnableResourceServer
public class AuthApplication {

    public static void main(String[] args) {
        SpringApplication.run(AuthApplication.class, args);
    }

    @Configuration
    protected static class LoginConfig extends WebSecurityConfigurerAdapter {

        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.requestMatchers().antMatchers("/login", "/oauth/authorize").and().authorizeRequests().anyRequest()
                    .authenticated().and().formLogin().permitAll();
        }

        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.inMemoryAuthentication().withUser("user").password("password").roles("USER");
        }
    }

    @Configuration
    @EnableAuthorizationServer
    protected static class OAuth2Config extends AuthorizationServerConfigurerAdapter {
        @Autowired
        private AuthenticationManager authenticationManager;

        @Override
        public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
            clients.inMemory().withClient("foo").secret("bar")
                    .authorizedGrantTypes("authorization_code", "refresh_token", "password").scopes("user_info")
                    .autoApprove(true);
        }

        @Override
        public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
            oauthServer.tokenKeyAccess("permitAll()").checkTokenAccess("isAuthenticated()");
        }

        @Override
        public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
            endpoints.authenticationManager(authenticationManager);
        }
    }
}

package com.spud.controllers;

import java.security.Principal;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class UserController {

    @GetMapping("/user/me")
    public Principal user(Principal principal) {
        return principal;
    }
}

应用程序属性

server.context-path=/sso-server

给出错误（运行时控制台输出不完整，但这是错误）

---

您必须公开Springbean描述的

AuthenticationManager

。

我应该提到我查看了其他一些相关帖子，包括您链接我的帖子。然而，凌晨4点左右，我猜我的阅读能力变差了。我逗你笑了，又读了一遍。这一次，我意识到“当然，把它放在OAuth2Config类中是行不通的”。我在正确的类中实现了它，它很有效。这是一个重复的问题。谢谢你和我的道歉，没问题。我将问题标记为重复。可能重复