[英]Bean that could not be found Spring Boot
I have a problem when trying to start my Spring Boot application with tokenization.尝试使用令牌化启动我的 Spring 启动应用程序时遇到问题。 This is my service class:这是我的服务 class:
@Service
@Slf4j
public class JwtTokenService {
private final JwtConfig jwtConfig;
public JwtTokenService(JwtConfig jwtConfig) {
this.jwtConfig = jwtConfig;
}
public String generateToken(Authentication authentication) {
Long now = System.currentTimeMillis();
return Jwts.builder()
.setSubject(authentication.getName())
.claim("authorities", authentication.getAuthorities().stream()
.map(GrantedAuthority::getAuthority).collect(Collectors.toList()))
.setIssuedAt(new Date(now))
.setExpiration(new Date(now + jwtConfig.getExpiration() * 1000))
.signWith(SignatureAlgorithm.HS512, jwtConfig.getSecret().getBytes())
.compact();
}
}
This is my config class:这是我的配置 class:
@Data
@NoArgsConstructor
@Component
public class JwtConfig {
@Value("${security.jwt.uri:/auth/**}")
private String Uri;
@Value("${security.jwt.header:Authorization}")
private String header;
@Value("${security.jwt.prefix:Bearer }")
private String prefix;
@Value("${security.jwt.expiration:#{24*60*60}}")
private int expiration;
@Value("${security.jwt.secret:JwtSecretKey}")
private String secret;
}
And I get the following error when I try to run my Application:当我尝试运行我的应用程序时出现以下错误:
***************************
APPLICATION FAILED TO START
***************************
Description:
Parameter 0 of constructor in services.JwtTokenService required a bean of type 'config.JwtConfig' that could not be found.
Action:
Consider defining a bean of type 'config.JwtConfig' in your configuration.
I dont understand why i get this error.我不明白为什么会出现此错误。
I solved it.我解决了。 The problem was that the package where the config lays was not scanned by my spring boot application.问题是配置所在的 package 没有被我的 spring 启动应用程序扫描。 In my @SpringBootApplication I added @ComponentScan with the package where JwtConfig lays.在我的@SpringBootApplication 中,我在 JwtConfig 所在的位置添加了带有 package 的 @ComponentScan。
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