Spring 3.1.2版本升级：WebSecurityConfig类改写咨询

针对Spring Security 6.x（对应Spring 3.1.x）移除WebSecurityConfigurerAdapter的情况，改写后的配置类如下：

package ua.com.alevel.config.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.method.configuration.EnableMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;

@Configuration
@EnableWebSecurity
@EnableMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig {

    private final UserDetailsService userDetailsService;

    @Autowired
    public WebSecurityConfig(@Qualifier("userDetailsServiceImpl") UserDetailsService userDetailsService) {
        this.userDetailsService = userDetailsService;
    }

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        http
                .csrf(csrf -> csrf.disable())
                .authorizeHttpRequests(auth -> auth
                        .requestMatchers("/**", "/api/v1/user/getActualUser").permitAll()
                        .anyRequest().authenticated()
                )
                .formLogin(form -> form
                        .loginPage("/user/loginUser").permitAll()
                        .defaultSuccessUrl("/")
                )
                .logout(logout -> logout
                        .logoutRequestMatcher(new AntPathRequestMatcher("/user/logoutUser", "POST"))
                        .invalidateHttpSession(true)
                        .clearAuthentication(false)
                        .deleteCookies("JSESSIONID")
                        .logoutSuccessUrl("/user/loginUser")
                );

        return http.build();
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder(12);
    }

    @Bean
    public DaoAuthenticationProvider daoAuthenticationProvider() {
        DaoAuthenticationProvider provider = new DaoAuthenticationProvider();
        provider.setPasswordEncoder(passwordEncoder());
        provider.setUserDetailsService(userDetailsService);
        return provider;
    }

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

关键改动说明 #

• 移除继承关系：不再继承WebSecurityConfigurerAdapter，该类在Spring Security 6.0+已完全移除。
• SecurityFilterChain配置：通过@Bean SecurityFilterChain替代原configure(HttpSecurity)方法，采用Lambda DSL风格编写，更简洁直观。
• 方法安全注解更新：用@EnableMethodSecurity替代旧的@EnableGlobalMethodSecurity，这是Spring Security 5.6+官方推荐的方法安全配置注解。
• AuthenticationManager获取：通过AuthenticationConfiguration获取认证管理器，替代原重写authenticationManagerBean()的方式。
• 冗余Bean清理：删除了重复的bCryptPasswordEncoder() Bean，统一使用passwordEncoder()提供密码加密实例。
• 自动识别认证提供者：DaoAuthenticationProvider作为Bean会被Spring Security自动纳入认证流程，无需手动在AuthenticationManagerBuilder中配置。

内容的提问来源于stack exchange，提问作者Artem Dubenko