这些天我一直面临着和你一样的问题，唯一找到的解决办法就是这个

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

但是这导致了我在测试中的一个异常。我在GitHub上发布了一个Spring启动问题。请查看以了解最新信息。https://github.com/spring-projects/spring-framework/issues/29215这可能是一个bug

我发现替代方法是AuthenticationConfiguration类中的getAuthenticationManager函数

@Bean
    protected SecurityFilterChain configure(final HttpSecurity http,
                                            final AuthenticationManagerBuilder auth,
                                            final AuthenticationConfiguration authenticationConfiguration) throws Exception {
        // set the authentication provider
        auth.authenticationProvider(daoAuthenticationProvider());

        // set the authorization and authentication rules
        return http
                .csrf().disable()
                // Make sure that the session is stateless because we are using JWT
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and()
                // Add the JWT filter (my custom filter)
                .addFilter(new JwtFilter(authenticationConfiguration.getAuthenticationManager()))
                .build();
}