java.lang.IllegalArgumentException: There is no PasswordEncoder mapped for the id "null"

- 日理万妓 2022-02-24 03:26 294阅读 0赞

###  今天刚学习springboot+spring security，结果访问请求登录时控制台报错： ###

java.lang.IllegalArgumentException: There is no PasswordEncoder mapped for the id "null"
    	at org.springframework.security.crypto.password.DelegatingPasswordEncoder$UnmappedIdPasswordEncoder.matches(DelegatingPasswordEncoder.java:244) ~[spring-security-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    	at org.springframework.security.crypto.password.DelegatingPasswordEncoder.matches(DelegatingPasswordEncoder.java:198) ~[spring-security-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter$LazyPasswordEncoder.matches(WebSecurityConfigurerAdapter.java:594) ~[spring-security-config-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    	at org.springframework.security.authentication.dao.DaoAuthenticationProvider.additionalAuthenticationChecks(DaoAuthenticationProvider.java:90) ~[spring-security-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    	at org.springframework.security.authentication.dao.AbstractUserDetailsAuthenticationProvider.authenticate(AbstractUserDetailsAuthenticationProvider.java:166) ~[spring-security-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    	at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:175) ~[spring-security-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]
    	at org.springframework.security.authentication.ProviderManager.authenticate(ProviderManager.java:200) ~[spring-security-core-5.1.4.RELEASE.jar:5.1.4.RELEASE]

### 环境：jdk1.8,springboot2.1.3.RELEASE,spring security 5.1.4.RELEASE ###

package com.lucifer.morningstar.SpringSecurity;
    
    import org.springframework.context.annotation.Configuration;
    import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
    import org.springframework.security.config.annotation.web.builders.HttpSecurity;
    import org.springframework.security.config.annotation.web.builders.WebSecurity;
    import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
    import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
    import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
    
    /**
     * @Auther: lucifer
     * @Date: 2019/4/2
     * @Description:
     */
    @Configuration
    @EnableWebSecurity
    public class SpringSecurityConfig  extends WebSecurityConfigurerAdapter {
    
    
        @Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            //auth.inMemoryAuthentication().withUser("admin").password("123456").roles("ADMIN");
            auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder()).withUser("admin").password(new BCryptPasswordEncoder().encode("123456")).roles("ADMIN");
            
        }
    
        @Override
        public void configure(WebSecurity web) throws Exception {
            web.ignoring().antMatchers("/js/**","/css/**","/images/**");
        }
    
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.authorizeRequests()
                    .antMatchers("/")
                    .permitAll()
                    .anyRequest()
                    .authenticated()
                    .and()
                    .logout()
                    .permitAll()
                    .and()
                    .formLogin();
            http.csrf().disable();
        }
    }

### 出问题的代码在这里： ###

auth.inMemoryAuthentication().withUser("admin").password("123456").roles("ADMIN");

### 官方文档：（[spring-security5.2.0][]） ###

###     内容（谷歌翻译的）： ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70][]

### ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 1][] ###

## 简单的来说： ##

###       从spring security 5.X开始，需要使用密码编码器，也就是需要对你的明文密码进行加密，而不NoAppasswordEncoder（无密码编码器）； ###

### 办法一： ###

### 1.1 使用BCryptPasswordEncoder（） ###

auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder()).withUser("admin").password(new BCryptPasswordEncoder().encode("123456")).roles("ADMIN");

### 1.2 使用Pbkdf2PasswordEncoder（） ###

@Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            auth.inMemoryAuthentication().passwordEncoder(new Pbkdf2PasswordEncoder()).withUser("admin").password(new Pbkdf2PasswordEncoder().encode("123456")).roles("ADMIN");
        }

###  1.3 **SCryptPasswordEncoder（）这里就不展示了，同上；** ###

### 方法二：自定义**PasswordEncoders，需要实现**PasswordEncoder 接口 ###

package com.lucifer.morningstar.SpringSecurity;
    
    import org.springframework.security.crypto.password.PasswordEncoder;
    
    /**
     * @Auther: lucifer
     * @Date: 2019/4/2
     * @Description:
     */
    public class MyPasswordEncoder implements PasswordEncoder {
    
        @Override
        public String encode(CharSequence charSequence) {
            return charSequence.toString();
        }
    
        @Override
        public boolean matches(CharSequence charSequence, String s) {
            return s.equals(charSequence.toString());
        }
    }

@Override
        protected void configure(AuthenticationManagerBuilder auth) throws Exception {
            //auth.inMemoryAuthentication().withUser("admin").password("123456").roles("ADMIN");
           //auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder()).withUser("admin").password(new BCryptPasswordEncoder().encode("123456")).roles("ADMIN");
            auth.inMemoryAuthentication().passwordEncoder(new MyPasswordEncoder()).withUser("admin").password("123456").roles("ADMIN");
        }

[spring-security5.2.0]: https://docs.spring.io/spring-security/site/docs/5.2.0.BUILD-SNAPSHOT/reference/htmlsingle/
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70]: /images/20220224/18e3605b7b98465f952a88d52cffa4d3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM3NDk1Nzg2_size_16_color_FFFFFF_t_70 1]: /images/20220224/b7f3b73860ee4cf198e010784862c311.png