我正在尝试使用存储在数据库中的用户名和密码创建自定义登录页面，但无法解决此错误
我是Spring Security的初学者，代码看起来不错，而且我认为缺少某些内容。
提升应用程序时，它将显示以下错误，但是我无处为appconfig创建了bean
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.2.5.RELEASE)
2020-03-14 12:31:34.584 INFO 5148 --- [ main] com.access6.SecureDemoAppApplication : Starting SecureDemoAppApplication on DESKTOP-G23R8VK with PID 5148 (D:\workspace-spring-tool-suite-4-4.5.1.RELEASE\SecureDemoApp\target\classes started by Admin in D:\workspace-spring-tool-suite-4-4.5.1.RELEASE\SecureDemoApp)
2020-03-14 12:31:34.588 INFO 5148 --- [ main] com.access6.SecureDemoAppApplication : No active profile set, falling back to default profiles: default
2020-03-14 12:31:35.199 INFO 5148 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFAULT mode.
2020-03-14 12:31:35.255 INFO 5148 --- [ main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 49ms. Found 1 JPA repository interfaces.
2020-03-14 12:31:35.717 INFO 5148 --- [ main] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2020-03-14 12:31:35.724 INFO 5148 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-03-14 12:31:35.724 INFO 5148 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.31]
2020-03-14 12:31:35.918 INFO 5148 --- [ main] org.apache.jasper.servlet.TldScanner : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2020-03-14 12:31:35.922 INFO 5148 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-03-14 12:31:35.922 INFO 5148 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 1291 ms
2020-03-14 12:31:36.075 INFO 5148 --- [ main] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [name: default]
2020-03-14 12:31:36.133 INFO 5148 --- [ main] org.hibernate.Version : HHH000412: Hibernate ORM core version 5.4.12.Final
2020-03-14 12:31:36.258 INFO 5148 --- [ main] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2020-03-14 12:31:36.451 INFO 5148 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2020-03-14 12:31:36.838 INFO 5148 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2020-03-14 12:31:36.854 INFO 5148 --- [ main] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL8Dialect
2020-03-14 12:31:37.401 INFO 5148 --- [ main] o.h.e.t.j.p.i.JtaPlatformInitiator : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2020-03-14 12:31:37.408 INFO 5148 --- [ main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-03-14 12:31:37.467 WARN 5148 --- [ main] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2020-03-14 12:31:37.710 WARN 5148 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appConfig': Unsatisfied dependency expressed through field 'UserDetailsService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDetailsService': Unsatisfied dependency expressed through field 'reop'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepo': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract com.access6.User com.access6.UserRepo.findByUserName(java.lang.String)! No property userName found for type User!
2020-03-14 12:31:37.710 INFO 5148 --- [ main] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2020-03-14 12:31:37.713 INFO 5148 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown initiated...
2020-03-14 12:31:37.718 INFO 5148 --- [ main] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Shutdown completed.
2020-03-14 12:31:37.720 INFO 5148 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2020-03-14 12:31:37.734 INFO 5148 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-03-14 12:31:37.743 ERROR 5148 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'appConfig': Unsatisfied dependency expressed through field 'UserDetailsService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'userDetailsService': Unsatisfied dependency expressed through field 'reop'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepo': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract com.access6.User com.access6.UserRepo.findByUserName(java.lang.String)! No property userName found for type User!
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:643) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:130) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399) ~[spring-beans-5.2.4.RELEASE.jar:5.2.4.RELEASE]
这是我的代码：
配置类
package com.access6;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.dao.DaoAuthenticationProvider;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
@SuppressWarnings("deprecation")
@Configuration
@EnableWebSecurity
public class AppConfig extends WebSecurityConfigurerAdapter {
@Autowired
public UserDetailsService UserDetailsService;
@Bean
public AuthenticationProvider authpro() {
DaoAuthenticationProvider DAuthpro= new DaoAuthenticationProvider();
DAuthpro.setUserDetailsService(UserDetailsService);
DAuthpro.setPasswordEncoder(NoOpPasswordEncoder.getInstance());
return DAuthpro;
}
@Bean
public User u () {
return new User();
}
}
控制器类
package com.access6;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.ModelAndView;
@RestController
public class SecureContrlr {
@RequestMapping("/")
public ModelAndView weclome() {
return new ModelAndView("home");
}
}
模型
package com.access6;
import javax.persistence.Entity;
import javax.persistence.Id;
@Entity
public class User {
@Id
private int id;
private String name;
private String password;
//getters and setters
}
资料库
package com.access6;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.stereotype.Repository;
@Repository
@EnableJpaRepositories
public interface UserRepo extends JpaRepository<User, Long> {
User findByUserName(String UserName);
}
服务类-此类中的东西是错误的，但我无法在此处确定问题
package com.access6;
import javax.transaction.Transactional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
@Service
public class UserDetailsService implements org.springframework.security.core.userdetails.UserDetailsService {
@Autowired
private UserRepo reop;
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
User user=reop.findByUserName(username);
if(user==null) {
throw new UsernameNotFoundException("404 user");
}
return new UserDetailsImpli(user);
}
}
实现类
package com.access6;
import java.util.Collection;
import java.util.Collections;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
@Service
@Component
@SuppressWarnings("serial")
public class UserDetailsImpli implements UserDetails {
User user;
public UserDetailsImpli(User user) {
super();
this.user = user;
}
@Override
public Collection<? extends GrantedAuthority> getAuthorities() {
return Collections.singleton(new SimpleGrantedAuthority("USER"));
}
@Override
public String getPassword() {
// TODO Auto-generated method stub
return user.getPassword();
}
@Override
public String getUsername() {
// TODO Auto-generated method stub
return user.getName();
}
@Override
public boolean isAccountNonExpired() {
// TODO Auto-generated method stub
return true;
}
@Override
public boolean isAccountNonLocked() {
// TODO Auto-generated method stub
return true;
}
@Override
public boolean isCredentialsNonExpired() {
// TODO Auto-generated method stub
return true;
}
@Override
public boolean isEnabled() {
// TODO Auto-generated method stub
return true;
}
}
问题来源：Stack Overflow
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-
将存储库中的方法重命名为：
public interface UserRepo extends JpaRepository<User, Long> { User findByName(String UserName); }您无需在方法签名中写入实体名称。之后findBy的字段的名称应遵循，这是name（驼峰）。
回答来源：Stack Overflow
2020-03-26 12:24:51赞同 展开评论 打赏
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