包中的字段 passwordEncoder 需要一个找不到的 'org.springframework.security.crypto.password.PasswordEncoder' 类型的 bean

Question

我正在尝试使用配置文件在我的服务类中自动装配密码编码器：

@Configuration
@EnableWebSecurity
class SecurityConfiguration : WebSecurityConfigurerAdapter() {

@Bean
fun passwordEncoder(): PasswordEncoder {
    return BCryptPasswordEncoder()
}

Intellij 检测到 @Autowired var passwordEncoder 作为 autowired 的候选者。

@Service
class userServiceImpl : UserService {

@Autowired
private lateinit var passwordEncoder : PasswordEncoder

我知道正在调用配置，因为调用了配置文件的其他元素。

***************************
APPLICATION FAILED TO START
***************************
Description:
Field passwordEncoder in com.example.project.service.userServiceImpl required a bean of type 'org.springframework.security.crypto.password.PasswordEncoder' that could not be found.
 The injection point has the following annotations:
- @org.springframework.beans.factory.annotation.Autowired(required=true)
Action:
Consider defining a bean of type 'org.springframework.security.crypto.password.PasswordEncoder' in your configuration.

Answer 1

我在我的主类中为有问题的包添加了组件扫描注释，并消除了错误

    @SpringBootApplication
    @ComponentScan("com.example.project.config")
    class myApplication