Java com.api.WebSecurityConfig中的字段myUserDetailsService需要一个bean，但找到了2个

完全错误： com.api.WebSecurityConfig中的字段myUserDetailsService需要一个bean，但找到了2个：

• user1：在文件[/tools/tomcat/instances/webapps/api/WEB-INF/classes/com/api/jwt/users/test1.class]中定义
• user2：在文件[/tools/tomcat/instances/webapps/api/WEB-INF/classes/com/api/jwt/users/test2.class]中定义

我有以下课程：

Test1.java

@Service
@Component("user1")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("user2")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    @Qualifier(value = "user1")
    private Test1 test1;

    @Autowired
    @Qualifier(value = "user2")
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

@Service
@Component("myUserDetailsService")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("myUserDetailsService")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier(value = "myUserDetailsService")
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    private Test1 test1;

    @Autowired
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

JwtRequestFilter.java

@Service
@Component("user1")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("user2")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    @Qualifier(value = "user1")
    private Test1 test1;

    @Autowired
    @Qualifier(value = "user2")
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

@Service
@Component("myUserDetailsService")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("myUserDetailsService")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier(value = "myUserDetailsService")
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    private Test1 test1;

    @Autowired
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

我认为通过使用

@Component

和

@Qualifier

，我可以设置两个用户详细信息类，但事实似乎并非如此

在这个设计中，我是否遗漏了什么或者根本不可能

如果我创建了另一个名为

MyUserDetailsService.java

的类，那么编译工作和正确的类将在相应的端点中被访问。我只是不明白为什么

MyUserDetailsService

必须存在，而且我不能将

Test1

和

Test2

用作用户类

编辑：

Test1.java

@Service
@Component("user1")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("user2")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    @Qualifier(value = "user1")
    private Test1 test1;

    @Autowired
    @Qualifier(value = "user2")
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

@Service
@Component("myUserDetailsService")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("myUserDetailsService")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier(value = "myUserDetailsService")
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    private Test1 test1;

    @Autowired
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

JwtRequestFilter.java

@Service
@Component("user1")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("user2")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    @Qualifier(value = "user1")
    private Test1 test1;

    @Autowired
    @Qualifier(value = "user2")
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

@Service
@Component("myUserDetailsService")
public class Test1 implements UserDetailsService {

    @Value("${test1.username}")
    private String test1Username;

    @Value("${test1.password}")
    private String test1Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test1Username)) {
            return new User(username, test1Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@Service
@Component("myUserDetailsService")
public class Test2 implements UserDetailsService {

    @Value("${test2.username}")
    private String test2Username;

    @Value("${test2.password}")
    private String test2Password;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {

        if (username != null && username.equals(test2Username)) {
            return new User(username, test2Password, new ArrayList<>());
        } else {
            throw new UsernameNotFoundException("Username not found: " + username);
        }
    }

}

@EnableWebSecurity
class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    @Autowired
    @Qualifier(value = "myUserDetailsService")
    private UserDetailsService myUserDetailsService;

    @Autowired
    private JwtRequestFilter jwtRequestFilter;

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(myUserDetailsService);
    }

    @Bean
    public PasswordEncoder passwordEncoder() {
        return NoOpPasswordEncoder.getInstance();
    }

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

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable()
            .authorizeRequests().antMatchers("/**/access-token").permitAll().
            anyRequest().authenticated().and().
            exceptionHandling().and().sessionManagement()
            .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }

}

@Component
public class JwtRequestFilter extends OncePerRequestFilter {

    @Autowired
    private Test1 test1;

    @Autowired
    private Test2 test2;

    @Override
    protected void doFilterInternal() throws ServletException, IOException {
        // SOME CODE
    }

这给了我以下错误：

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.api.SpringMainApplication];

nested exception is org.springframework.context.annotation.ConflictingBeanDefinitionException:

Annotation-specified bean name 'myUserDetailsService' for bean class [com.api.jwt.users.Test2DetailsService] conflicts with existing, non-compatible bean definition of same name and class [com.api.jwt.users.Test1DetailsService]

---

这些声明不需要限定符。Spring可以按类型注入这些bean，因为每个类型（Test1和Test2）都有一个匹配的bean

但是，您确实需要为该声明提供一个限定符，因为您有两个

UserDetailsService

的实现，spring不知道要注入哪一个，从而导致错误

@Autowired
private UserDetailsService myUserDetailsService;

编辑

在更新的示例中，您定义了两个具有相同bean id的bean

@Component("myUserDetailsService")
public class Test1 implements UserDetailsService {

@Component("myUserDetailsService")
public class Test2 implements UserDetailsService {

这将导致您看到的新错误（可能有助于查看）：

注释为bean类指定了bean名称“myUserDetailsService” [com.api.jwt.users.Test2DetailsService]与现有， 相同名称和类的不兼容bean定义 [com.api.jwt.users.Test1DetailsService]

---

在您的示例中，有两个

UserDetailsService

实现是没有意义的。您可以通过将它们合并到一个类中进行重构。

我编辑了我的问题。你介意再看一眼吗？我想我遇到的问题是我不能同时加载user1和user2。它是一个或另一个，但我需要加载它们，因为它们有自己特定的令牌机密和端点。基本上，我的问题是是否有一种方法可以使用

Test1

和

Test2

，而不必使用

MyUserDetailsService

类。现在我有所有3个类，它们都可以工作，但是如果我可以删除

MyUserDetailsService

就很理想了，这样我就不会有双重代码了。