使用Spring的AbstractAuthenticationProcessingFilter解决了successfulAuthentication后的404问题

public class CustomAuthenticationSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler {
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response, Authentication authentication) throws ServletException, IOException {
        // 自定义成功处理逻辑，例如重定向到指定页面
        response.sendRedirect("/home");
    }
}

public class CustomAuthenticationProcessingFilter extends AbstractAuthenticationProcessingFilter {
    protected CustomAuthenticationProcessingFilter(RequestMatcher requiresAuthenticationRequestMatcher) {
        super(requiresAuthenticationRequestMatcher);
    }

    @Override
    protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException {
        // 调用自定义成功处理器处理身份验证成功后的逻辑
        CustomAuthenticationSuccessHandler successHandler = new CustomAuthenticationSuccessHandler();
        successHandler.onAuthenticationSuccess(request, response, authResult);
    }
}

@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            // 配置其他的安全设置

            .addFilterBefore(customAuthenticationProcessingFilter(), UsernamePasswordAuthenticationFilter.class);
    }

    @Bean
    public CustomAuthenticationProcessingFilter customAuthenticationProcessingFilter() throws Exception {
        CustomAuthenticationProcessingFilter filter = new CustomAuthenticationProcessingFilter(new AntPathRequestMatcher("/login", "POST"));
        filter.setAuthenticationManager(authenticationManagerBean());
        return filter;
    }
}