错误：需要一个无法找到的“org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder”类型的bean

问题描述

我想通过创建一个简单的登录屏幕在我的项目中使用 Spring Boot Security，但在运行 y 应用程序时出现这些错误

说明： com.panchmeru_studio.controller.UserController 中构造函数的参数 1 需要一个无法找到的“org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder”类型的 bean。

操作：考虑在您的配置中定义一个 org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder' 类型的 bean。 这是我的代码。

用户控制器

package com.panchmeru_studio.controller;

import com.panchmeru_studio.entities.ApplicationUser;
import com.panchmeru_studio.repository.ApplicationUserRepository;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.web.bind.annotation.*;

@RestController
@RequestMapping("/users")
public class UserController {

    private ApplicationUserRepository applicationUserRepository;
    private BCryptPasswordEncoder bCryptPasswordEncoder;

    public UserController(ApplicationUserRepository applicationUserRepository,BCryptPasswordEncoder bCryptPasswordEncoder) {
        this.applicationUserRepository = applicationUserRepository;
        this.bCryptPasswordEncoder = bCryptPasswordEncoder;
    }

    @PostMapping("/record")
    public void signUp(@RequestBody ApplicationUser applicationUser) {
        applicationUser.setPassword(bCryptPasswordEncoder.encode(applicationUser.getpassword()));
        applicationUserRepository.save(applicationUser);
    }
}

SecurityConfiguration.java

package com.panchmeru_studio.security;

import com.panchmeru_studio.filter.AuthenticationFilter;
import com.panchmeru_studio.filter.AuthorizationFilter;

import com.panchmeru_studio.service.ApplicationUserDetailsService;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.CorsConfigurationSource;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;

import static com.panchmeru_studio.constants.SecurityConstants.SIGN_UP_URL;

@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    private ApplicationUserDetailsService userDetailsService;
    private BCryptPasswordEncoder bCryptPasswordEncoder;

    public SecurityConfiguration(ApplicationUserDetailsService userDetailsService,BCryptPasswordEncoder bCryptPasswordEncoder) {
        this.userDetailsService = userDetailsService;
        this.bCryptPasswordEncoder = bCryptPasswordEncoder;
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.cors().and().csrf().disable().authorizeRequests()
                .antMatchers(HttpMethod.POST,SIGN_UP_URL).permitAll()
                .anyRequest().authenticated()
                .and()
                .addFilter(new AuthenticationFilter(authenticationManager()))
                .addFilter(new AuthorizationFilter(authenticationManager()))
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }
    @Bean
    CorsConfigurationSource corsConfigurationSource() {
        final UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        source.registerCorsConfiguration("/**",new CorsConfiguration().applyPermitDefaultValues());
        return source;
    }

    @Override
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(bCryptPasswordEncoder);
    }
    


    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }


}

解决方法

错误提示，您没有任何带有密码编码器的 bean。

在你的配置类中添加那个 bean 并从 BCryptPasswordEncoder 的构造函数中删除 SecurityConfiguration ：

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

,

在您的安全配置类中，您不需要这一行：

private BCryptPasswordEncoder bCryptPasswordEncoder;

用这个替换它。下面的方法是将密码编码器 bean 提供给 spring 容器以增强安全性。

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

在您的控制器中，现在您可以将其自动装配为：

@Autowired    
private BCryptPasswordEncoder bCryptPasswordEncoder;