为什么我将 Spring Security 版本从 5 升级到 6 后出现异常？

Question

将 Spring Security 从 5 迁移到 6.0。出现以下异常，我尝试了所有可能的解决方案，但没有任何结果。请有人帮助我。

java.lang.NullPointerException: Cannot invoke "org.springframework.security.authentication.AuthenticationManager.authenticate(org.springframework.security.core.Authentication)" because the return value of "org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.getAuthenticationManager()" is null
    at com.jmi.jabord.core.oauth.filter.AccessTokenAuthenticationFilter.attemptAuthentication(AccessTokenAuthenticationFilter.java:79)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:231)
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:221)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:107)
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:93)
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:374)

我尝试将其添加到我的 Filter 类中扩展

AbstractAuthenticationProcessingFilter

：

@Autowired
@Qualifier("authenticationManager")
@Override
public void setAuthenticationManager(AuthenticationManager authenticationManager) {
    super.setAuthenticationManager(authenticationManager);
}

但对我来说没有任何结果。

Answer 1

在安全配置类中你可以尝试添加这个：

@Bean
public AuthenticationManager authenticationManager(AuthenticationConfiguration authenticationConfiguration) throws Exception {
    return authenticationConfiguration.getAuthenticationManager();
}