為什么我會收到“圓形視圖路徑錯誤”？-有解無憂

我收到“圓形視圖路徑錯誤”，但我不知道為什么。如果我理解正確，則當您陷入無限回圈時會發生此錯誤。但是我的代碼中沒有看到無限回圈。我用谷歌搜索了這個錯誤，并測驗了我找到的每一個解決方案，但沒有任何效果。

我的用戶詳細資訊：

package de.gabriel.vertretungsplan.models;

import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.stream.Collectors;

public class MyUserDetails implements UserDetails {

    private String userName;
    private String password;
    private boolean active;
    private List<GrantedAuthority> authorities;

    public MyUserDetails(User user) {
        this.userName = user.getUserName();
        this.password = user.getPassword();
        this.active = user.isActive();
        this.authorities = Arrays.stream(user.getRoles().split(","))
                .map(SimpleGrantedAuthority::new)
                .collect(Collectors.toList());
        System.out.println(userName);
        System.out.println(password);
        System.out.println(active);
        System.out.println(authorities);
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return authorities;
    }

    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public String getUsername() {
        return userName;
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return active;
    }
}

用戶：

package de.gabriel.vertretungsplan.models;

import javax.persistence.*;

@Entity
@Table(name = "lehrer", schema = "public")
public class User {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private int id;
    private String userName;
    private String password;
    private boolean active;
    private String roles;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    public boolean isActive() {
        return active;
    }

    public void setActive(boolean active) {
        this.active = active;
    }

    public String getRoles() {
        return roles;
    }

    public void setRoles(String roles) {
        this.roles = roles;
    }
}

休息控制器/家庭資源：

package de.gabriel.vertretungsplan;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HomeResource {

    @GetMapping("/")
    public String home(){
        return ("<h1>Hier wird der Vertretungsplan einsehbar sein</h1>");
    }

    @GetMapping("/lehrer")
    public String lehrer(){
        return ("<h1>Hier wird das Formular einsehbar sein</h1>");
    }

    @GetMapping("/admin")
    public String admin(){
        return ("<h1>Hier wird die Admin übersicht einsehbar sein</h1>");
    }

}

我的用戶詳細資訊服務：

package de.gabriel.vertretungsplan;

import de.gabriel.vertretungsplan.models.MyUserDetails;
import de.gabriel.vertretungsplan.models.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import java.util.Optional;

@Service
public class MyUserDetailsService implements UserDetailsService {

    @Autowired
    UserRepository userRepository;

    @Override
    public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException {
       Optional<User> user = userRepository.findByUserName(userName);

       user.orElseThrow(() -> new UsernameNotFoundException("Username "   userName   " not found!"));

       return user.map(MyUserDetails::new).get();
    }

}

用戶存盤庫：

package de.gabriel.vertretungsplan;

import de.gabriel.vertretungsplan.models.User;
import org.springframework.data.jpa.repository.JpaRepository;

import java.util.Optional;

public interface UserRepository extends JpaRepository<User, Integer> {
    Optional<User> findByUserName(String userName);
}

安全配置：

package de.gabriel.vertretungsplan;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
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.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;

@EnableWebSecurity
public class SecurityConfiguration extends WebSecurityConfigurerAdapter {

    @Autowired
    UserDetailsService userDetailsService;


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

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.authorizeRequests()
                .antMatchers("/admin").hasRole("ADMIN")
                .antMatchers("/lehrer").hasAnyRole("ADMIN","LEHRER")
                .antMatchers("/").permitAll()
                .and().formLogin();
    }

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

}

最后，這是我的主要內容：

package de.gabriel.vertretungsplan;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;

@SpringBootApplication
@EnableJpaRepositories(basePackageClasses = UserRepository.class)
public class VertretungsplanApplication {

    public static void main(String[] args) {
        SpringApplication.run(VertretungsplanApplication.class, args);
    }

}

我不認為，錯誤來源可能在資料庫中，但如果是，這里是資料庫“vertretungsplan”中“lehrer”表的內容：

這是錯誤日志：

2022-04-17 00:50:57.562 ERROR 14740 --- [nio-8080-exec-6] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] threw exception

javax.servlet.ServletException: Circular view path [error]: would dispatch back to the current handler URL [/error] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)
    at org.springframework.web.servlet.view.InternalResourceView.prepareForRendering(InternalResourceView.java:210) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:148) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1401) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1145) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1084) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) ~[tomcat-embed-core-9.0.60.jar:4.0.FR]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.18.jar:5.3.18]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.60.jar:4.0.FR]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.springframework.boot.web.servlet.filter.ErrorPageSecurityFilter.doFilter(ErrorPageSecurityFilter.java:80) ~[spring-boot-2.6.6.jar:2.6.6]
    at org.springframework.boot.web.servlet.filter.ErrorPageSecurityFilter.doFilter(ErrorPageSecurityFilter.java:70) ~[spring-boot-2.6.6.jar:2.6.6]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:327) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:106) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:81) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:87) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.18.jar:5.3.18]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:237) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:223) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:219) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:213) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.18.jar:5.3.18]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.18.jar:5.3.18]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:110) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:80) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.18.jar:5.3.18]
    at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:336) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:211) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:183) ~[spring-security-web-5.6.2.jar:5.6.2]
    at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:354) ~[spring-web-5.3.18.jar:5.3.18]
    at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:267) ~[spring-web-5.3.18.jar:5.3.18]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.18.jar:5.3.18]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.18.jar:5.3.18]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.18.jar:5.3.18]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:102) ~[spring-web-5.3.18.jar:5.3.18]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:711) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:461) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:385) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:313) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:403) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:249) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.60.jar:9.0.60]
    at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

這是除錯日志（它們太長了，所以我發布了錯誤發生時間的長篇）：

2022-04-17 00:58:48.395 DEBUG 12924 --- [nio-8080-exec-4] o.s.security.web.FilterChainProxy        : Securing POST /login
2022-04-17 00:58:48.395 DEBUG 12924 --- [nio-8080-exec-4] s.s.w.c.SecurityContextPersistenceFilter : Set SecurityContextHolder to empty SecurityContext
Hibernate: 
    select
        user0_.id as id1_0_,
        user0_.active as active2_0_,
        user0_.password as password3_0_,
        user0_.roles as roles4_0_,
        user0_.user_name as user_nam5_0_ 
    from
        public.lehrer user0_ 
    where
        user0_.user_name=?
admin
$2a$12$E8STVE26N/QpoL90VfoOAuFRnYvbfzHKlbGRe.KVOMYCqKtDKNK2G
true
[ADMIN]
2022-04-17 00:58:48.796 DEBUG 12924 --- [nio-8080-exec-4] o.s.s.a.dao.DaoAuthenticationProvider    : Authenticated user
2022-04-17 00:58:48.797 DEBUG 12924 --- [nio-8080-exec-4] .s.ChangeSessionIdAuthenticationStrategy : Changed session id from CD2D5F40C901F8A7CF32826E28A596C9
2022-04-17 00:58:48.797 DEBUG 12924 --- [nio-8080-exec-4] o.s.s.w.csrf.CsrfAuthenticationStrategy  : Replaced CSRF Token
2022-04-17 00:58:48.798 DEBUG 12924 --- [nio-8080-exec-4] w.a.UsernamePasswordAuthenticationFilter : Set SecurityContextHolder to UsernamePasswordAuthenticationToken [Principal=de.gabriel.vertretungsplan.models.MyUserDetails@69c46690, Credentials=[PROTECTED], Authenticated=true, Details=WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=CD2D5F40C901F8A7CF32826E28A596C9], Granted Authorities=[ADMIN]]
2022-04-17 00:58:48.798 DEBUG 12924 --- [nio-8080-exec-4] o.s.s.web.DefaultRedirectStrategy        : Redirecting to http://localhost:8080/admin
2022-04-17 00:58:48.798 DEBUG 12924 --- [nio-8080-exec-4] w.c.HttpSessionSecurityContextRepository : Stored SecurityContextImpl [Authentication=UsernamePasswordAuthenticationToken [Principal=de.gabriel.vertretungsplan.models.MyUserDetails@69c46690, Credentials=[PROTECTED], Authenticated=true, Details=WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=CD2D5F40C901F8A7CF32826E28A596C9], Granted Authorities=[ADMIN]]] to HttpSession [org.apache.catalina.session.StandardSessionFacade@35a28abb]
2022-04-17 00:58:48.798 DEBUG 12924 --- [nio-8080-exec-4] w.c.HttpSessionSecurityContextRepository : Stored SecurityContextImpl [Authentication=UsernamePasswordAuthenticationToken [Principal=de.gabriel.vertretungsplan.models.MyUserDetails@69c46690, Credentials=[PROTECTED], Authenticated=true, Details=WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=CD2D5F40C901F8A7CF32826E28A596C9], Granted Authorities=[ADMIN]]] to HttpSession [org.apache.catalina.session.StandardSessionFacade@35a28abb]
2022-04-17 00:58:48.798 DEBUG 12924 --- [nio-8080-exec-4] s.s.w.c.SecurityContextPersistenceFilter : Cleared SecurityContextHolder to complete request
2022-04-17 00:58:48.801  INFO 12924 --- [nio-8080-exec-6] Spring Security Debugger                 : 

************************************************************

Request received for GET '/admin':

org.apache.catalina.connector.RequestFacade@328dbcd1

servletPath:/admin
pathInfo:null
headers: 
host: localhost:8080
connection: keep-alive
cache-control: max-age=0
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36
accept: text/html,application/xhtml xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: same-origin
sec-fetch-mode: navigate
sec-fetch-user: ?1
sec-fetch-dest: document
sec-ch-ua: " Not A;Brand";v="99", "Chromium";v="100", "Google Chrome";v="100"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
referer: http://localhost:8080/login
accept-encoding: gzip, deflate, br
accept-language: de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7
cookie: Webstorm-bca5ba46=692b9f6e-b03a-4cb4-8435-ea3fef371fc4; JSESSIONID=A90C1A49C3CF4D7943EE0ABBD989B1D4


Security filter chain: [
  WebAsyncManagerIntegrationFilter
  SecurityContextPersistenceFilter
  HeaderWriterFilter
  CsrfFilter
  LogoutFilter
  UsernamePasswordAuthenticationFilter
  DefaultLoginPageGeneratingFilter
  DefaultLogoutPageGeneratingFilter
  RequestCacheAwareFilter
  SecurityContextHolderAwareRequestFilter
  AnonymousAuthenticationFilter
  SessionManagementFilter
  ExceptionTranslationFilter
  FilterSecurityInterceptor
]


************************************************************


2022-04-17 00:58:48.802 DEBUG 12924 --- [nio-8080-exec-6] o.s.security.web.FilterChainProxy        : Securing GET /admin
2022-04-17 00:58:48.802 DEBUG 12924 --- [nio-8080-exec-6] w.c.HttpSessionSecurityContextRepository : Retrieved SecurityContextImpl [Authentication=UsernamePasswordAuthenticationToken [Principal=de.gabriel.vertretungsplan.models.MyUserDetails@69c46690, Credentials=[PROTECTED], Authenticated=true, Details=WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=CD2D5F40C901F8A7CF32826E28A596C9], Granted Authorities=[ADMIN]]]
2022-04-17 00:58:48.802 DEBUG 12924 --- [nio-8080-exec-6] s.s.w.c.SecurityContextPersistenceFilter : Set SecurityContextHolder to SecurityContextImpl [Authentication=UsernamePasswordAuthenticationToken [Principal=de.gabriel.vertretungsplan.models.MyUserDetails@69c46690, Credentials=[PROTECTED], Authenticated=true, Details=WebAuthenticationDetails [RemoteIpAddress=0:0:0:0:0:0:0:1, SessionId=CD2D5F40C901F8A7CF32826E28A596C9], Granted Authorities=[ADMIN]]]
2022-04-17 00:58:48.802 DEBUG 12924 --- [nio-8080-exec-6] o.s.s.w.s.HttpSessionRequestCache        : Loaded matching saved request http://localhost:8080/admin
2022-04-17 00:58:48.803 DEBUG 12924 --- [nio-8080-exec-6] o.s.s.w.a.i.FilterSecurityInterceptor    : Failed to authorize filter invocation [GET /admin] with attributes [hasRole('ROLE_ADMIN')]
2022-04-17 00:58:48.803 DEBUG 12924 --- [nio-8080-exec-6] o.s.s.w.access.AccessDeniedHandlerImpl   : Responding with 403 status code
2022-04-17 00:58:48.803 DEBUG 12924 --- [nio-8080-exec-6] s.s.w.c.SecurityContextPersistenceFilter : Cleared SecurityContextHolder to complete request
2022-04-17 00:58:48.805  INFO 12924 --- [nio-8080-exec-6] Spring Security Debugger                 : 

************************************************************

Request received for GET '/error':

org.apache.catalina.core.ApplicationHttpRequest@1f38c9b6

servletPath:/error
pathInfo:null
headers: 
host: localhost:8080
connection: keep-alive
cache-control: max-age=0
upgrade-insecure-requests: 1
user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36
accept: text/html,application/xhtml xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
sec-fetch-site: same-origin
sec-fetch-mode: navigate
sec-fetch-user: ?1
sec-fetch-dest: document
sec-ch-ua: " Not A;Brand";v="99", "Chromium";v="100", "Google Chrome";v="100"
sec-ch-ua-mobile: ?0
sec-ch-ua-platform: "Windows"
referer: http://localhost:8080/login
accept-encoding: gzip, deflate, br
accept-language: de-DE,de;q=0.9,en-US;q=0.8,en;q=0.7
cookie: Webstorm-bca5ba46=692b9f6e-b03a-4cb4-8435-ea3fef371fc4; JSESSIONID=A90C1A49C3CF4D7943EE0ABBD989B1D4


Security filter chain: [
  WebAsyncManagerIntegrationFilter
  SecurityContextPersistenceFilter
  HeaderWriterFilter
  CsrfFilter
  LogoutFilter
  UsernamePasswordAuthenticationFilter
  DefaultLoginPageGeneratingFilter
  DefaultLogoutPageGeneratingFilter
  RequestCacheAwareFilter
  SecurityContextHolderAwareRequestFilter
  AnonymousAuthenticationFilter
  SessionManagementFilter
  ExceptionTranslationFilter
  FilterSecurityInterceptor
]


************************************************************

uj5u.com熱心網友回復：

您收到此錯誤，因為您沒有完全配置 Spring MVC，即錯誤處理部分（可能還有其他部分）。

事件鏈如下：

呼叫 API 獲取 403 禁止資源 2022-04-17 00:58:48.803 DEBUG 12924 --- [nio-8080-exec-6] o.s.s.w.a.i.FilterSecurityInterceptor : Failed to authorize filter invocation [GET /admin] with attributes [hasRole('ROLE_ADMIN')] 2022-04-17 00:58:48.803 DEBUG 12924 --- [nio-8080-exec-6] o.s.s.w.access.AccessDeniedHandlerImpl : Responding with 403 status code
Spring重定向到/error視圖： Request received for GET '/error': org.apache.catalina.core.ApplicationHttpRequest@1f38c9b6 servletPath:/error
這里發生了一些事情（沒有找到，或者丟失了一些東西），它導致另一個錯誤 -> 這是發生例外的時候： javax.servlet.ServletException: Circular view path [error]: would dispatch back to the current handler URL [/error] again. Check your ViewResolver setup! (Hint: This may be the result of an unspecified view, due to default view name generation.)

解決方案：

嘗試通過“springboot mvc設定白標簽錯誤頁面”進行搜索。
并首先檢查為什么您會獲得 403 狀態，根據日志，您以管理員用戶身份登錄。請閱讀有關添加ROLE_前綴的彈簧安全性。最有可能的是，在資料庫中它必須ROLE_ADMIN在代碼中hasRole('ADMIN')

希望，有幫助

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