springsecurity进行登陆认证时There is no PasswordEncoder mapped for the id “null“ 错误处理

问题描述

在使用springsecurity6.0版本进行登陆认证时，出现如下错误：

原因分析：

在springsecurity5.0之后引入了许多加密方式，因此在校验是需要指定一种加密方式

在我的securityConfig中，authenticationProvider的代码如下：

@Bean
    public AuthenticationProvider authenticationProvider() {
        DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
        daoAuthenticationProvider.setUserDetailsService(userDetailsService);
        return daoAuthenticationProvider;
    }
           

因此在构建是需要添加加密方式

解决方案：

在构建的authenticationProvider中需要填加密码加密方式：

代码如下：

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

附上我的Springsecurityconfig全部代码：

代码如下：

package com.lp.framework.security.config;

import com.lp.framework.security.core.SpringSecurityUserDetailsServiceImpl;
import jakarta.annotation.Resource;
import lombok.RequiredArgsConstructor;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.ProviderManager;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.authentication.configuration.AuthenticationConfiguration;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.SecurityFilterChain;

/**
 * @author LuoPing
 * @project IntelliJ IDEA
 * @Package lpblog
 * @Date 2023/2/18 23:57
 */
@Configuration
@EnableWebSecurity
public class SpringSecurityConfigurer{

    @Resource
    SpringSecurityUserDetailsServiceImpl userDetailsService;
  
    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        //设置请求必须进行权限认证
        http.authorizeHttpRequests(authz ->{authz
                        .requestMatchers("/login").permitAll()// 放行登录接口
                        .anyRequest().authenticated();// 其余的都需要权限校验
                })
                .authenticationProvider(authenticationProvider())
                //关闭csrf防御，相似于防火墙，不关闭上面的设置不会真正生效。// 防跨站请求伪造
                .csrf().disable();

        return http.build();
    }

    @Bean
//    密码加密,不然没法做密码加密对比
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }


    /**
     * 获取AuthenticationManager（认证管理器），登录时认证使用
     */
    @Bean
    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception {
//        return authenticationConfiguration.getAuthenticationManager();
//        DaoAuthenticationProvider daoAuthenticationProvider = new DaoAuthenticationProvider();
//        daoAuthenticationProvider.setUserDetailsService(userDetailsService);
//        daoAuthenticationProvider.setPasswordEncoder(passwordEncoder());
        return config.getAuthenticationManager();
    }

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

           

附：SpringSecurity6.0版本学习视频链接 （外语视频）