需要一个 org.springframework.security.authentication.AuthenticationManager 类型的 bean

Question

这是 rest controller 文件。

import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.cps.models.ERole;
import com.cps.models.Role;
import com.cps.models.User;
import com.cps.requests.LoginRequest;
import com.cps.requests.SignupRequest;
import com.cps.response.JwtResponse;
import com.cps.response.MessageResponse;
import com.cps.repository.RoleRepository;
import com.cps.repository.UserRepository;
import com.cps.security.jwt.JwtUtils;
import com.cps.security.services.UserDetailsImpl;

@CrossOrigin(origins = "*", maxAge = 3600)
@RestController
@RequestMapping("/api/auth")
public class AuthController { 
     
    @Autowired
    AuthenticationManager authenticationManager;

    @Autowired
    UserRepository userRepository;

    @Autowired
    RoleRepository roleRepository;

    @Autowired
    PasswordEncoder encoder;

    @Autowired
    JwtUtils jwtUtils;
    
    
    @PostMapping("/signin")
    public ResponseEntity<?> authenticateUser(@Valid @RequestBody LoginRequest loginRequest) {
        
        Authentication authentication = authenticationManager.authenticate(
                new UsernamePasswordAuthenticationToken(loginRequest.getUsername(), loginRequest.getPassword()));
 
        SecurityContextHolder.getContext().setAuthentication(authentication);
        String jwt = jwtUtils.generateJwtToken(authentication);
        
        UserDetailsImpl userDetails = (UserDetailsImpl) authentication.getPrincipal();      
        List<String> roles = userDetails.getAuthorities().stream()
                .map(item -> item.getAuthority())
                .collect(Collectors.toList());

        return ResponseEntity.ok(new JwtResponse(jwt, 
                                                 userDetails.getId(), 
                                                 userDetails.getUsername(), 
                                                 userDetails.getEmail(), 
                                                 roles));
    }
    
    @PostMapping("/signup")
    public ResponseEntity<?> registerUser(@Valid @RequestBody SignupRequest signUpRequest) {
        if (userRepository.existsByUsername(signUpRequest.getUsername())) {
            return ResponseEntity
                    .badRequest()
                    .body(new MessageResponse("Error: Username is already taken!"));
        }

        if (userRepository.existsByEmail(signUpRequest.getEmail())) {
            return ResponseEntity
                    .badRequest()
                    .body(new MessageResponse("Error: Email is already in use!"));
        }

        // Create new user's account
        User user = new User(signUpRequest.getUsername(), 
                             signUpRequest.getEmail(),
                             encoder.encode(signUpRequest.getPassword()));

        Set<String> strRoles = signUpRequest.getRole();
        Set<Role> roles = new HashSet<>();

        if (strRoles == null) {
            Role userRole = roleRepository.findByName(ERole.ROLE_USER)
                    .orElseThrow(() -> new RuntimeException("Error: Role is not found."));
            roles.add(userRole);
        } else {
            strRoles.forEach(role -> {
                switch (role) {
                case "admin":
                    Role adminRole = roleRepository.findByName(ERole.ROLE_ADMIN)
                            .orElseThrow(() -> new RuntimeException("Error: Role is not found."));
                    roles.add(adminRole);

                    break;
                case "mod":
                    Role modRole = roleRepository.findByName(ERole.ROLE_MODERATOR)
                            .orElseThrow(() -> new RuntimeException("Error: Role is not found."));
                    roles.add(modRole);

                    break;
                default:
                    Role userRole = roleRepository.findByName(ERole.ROLE_USER)
                            .orElseThrow(() -> new RuntimeException("Error: Role is not found."));
                    roles.add(userRole);
                }
            });
        }

        user.setRoles(roles);
        userRepository.save(user);

        return ResponseEntity.ok(new MessageResponse("User registered successfully!"));
    }
}

这是 webSecurityConfig 文件...

package com.cps.NormalSecurity;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
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.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

import com.cps.security.jwt.AuthEntryPointJwt;
import com.cps.security.jwt.AuthTokenFilter;
import com.cps.security.services.UserDetailsServiceImpl;

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled = true,jsr250Enabled = true,prePostEnabled = true)  
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    UserDetailsServiceImpl userDetailsService;

    @Autowired
    private AuthEntryPointJwt unauthorizedHandler;

    @Bean
    public AuthTokenFilter authenticationJwtTokenFilter() {
        return new AuthTokenFilter();
    }
    @Override
    public void configure(AuthenticationManagerBuilder authenticationManagerBuilder) throws Exception {
        authenticationManagerBuilder.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
    }
    
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().and().csrf().disable()
            .exceptionHandling().authenticationEntryPoint(unauthorizedHandler).and()
            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS).and()
            .authorizeRequests().antMatchers("/api/auth/**").permitAll()
            .antMatchers("/api/test/**").permitAll()
            .anyRequest().authenticated();

        http.addFilterBefore(authenticationJwtTokenFilter(), UsernamePasswordAuthenticationFilter.class);
    }
}

描述：

com.cps.controllers.AuthController 中的字段 authenticationManager 需要找不到类型为“org.springframework.security.authentication.AuthenticationManager”的 bean。

注入点有以下注解： - @org.springframework.beans.factory.annotation.Autowired(required=true)

行动：

考虑在你的配置中定义一个 'org.springframework.security.authentication.AuthenticationManager' 类型的 bean。 任何想法？？？

Answer 1

在 controller class (AuthController) 中添加限定符以访问 bean。

 @Autowired
 @Qualifier("authenticationManagerBean")
 private AuthenticationManager authenticationManager;

Answer 2

您用于初始化 bean 的此方法：

    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

默认情况下，spring 创建的 bean 名称与 bean 初始化方法名称相同。 因此，在您的项目中， spring 创建了一个名为authenticationManagerBean的AuthenticationManager类型的 bean。 所以你现在有三个选择：

• 在自动装配字段时使用@Qualifier("authenticationManagerBean") （如@harry 所述）
• 在 controller class 中使用 spring 的默认 bean 名称

    @Autowired
    private AuthenticationManager authenticationManagerBean;

• 将 bean 初始化方法的名称更改为authenticationManager