我用 spring 和 jwt 完成了身份验证的后端，我正在用 post man 进行测试，但是出现了这个错误：
{
"timestamp": "2023-04-11T21:05:46.986+00:00",
"status": 500,
"error": "Internal Server Error",
"path": "/authentication"
}
这是我的网络安全配置：
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSec extends WebSecurityConfigurerAdapter {
@Autowired
private JwtAuthenticationEntry jwtAuthenticationEntry;
@Autowired
private JwtRequestFilter jwtRequestFilter;
@Bean
@Override
public AuthenticationManager authenticationManagerBean() throws Exception{
return super.authenticationManagerBean();
}
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception{
httpSecurity.cors();
httpSecurity.csrf().disable().authorizeHttpRequests()
.antMatchers("/authentication").permitAll()
.antMatchers(HttpHeaders.ALLOW).permitAll()
.anyRequest().authenticated()
.and()
.exceptionHandling().authenticationEntryPoint(jwtAuthenticationEntry)
.and()
.sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
}
}
和智威汤逊控制器：
@RestController
@CrossOrigin
public class JwtController {
@Autowired
private JwtService jwtService;
@PostMapping({"/authentication"})
public JwtResponse createJwtToken(@RequestBody JwtRequest jwtRequest) throws Exception{
return jwtService.createJwtToken(jwtRequest);
}
}
堆栈跟踪：
java.lang.NullPointerException: null
at com.example.banque.service.JwtService.authentication(JwtService.java:52) ~[classes/:na]
at com.example.banque.service.JwtService.createJwtToken(JwtService.java:39) ~[classes/:na]
at com.example.banque.controller.JwtController.createJwtToken(JwtController.java:22) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.26.jar:5.3.26]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1072) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:965) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.26.jar:5.3.26]
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.26.jar:5.3.26]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:528) ~[tomcat-embed-core-9.0.73.jar:4.0.FR]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.26.jar:5.3.26]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:596) ~[tomcat-embed-core-9.0.73.jar:4.0.FR]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209) ~[tomcat-embed-core-9.0.73.jar:9.0.73]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.73.jar:9.0.73]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.73.jar:9.0.73]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~[tomcat-embed-core-9.0.73.jar:9.0.73]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.73.jar:9.0.73]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:111) ~[spring-web-5.3.26.jar:5.3.26]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~[tomcat-embed-core-9.0.73.jar:9.0.73]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~[tomcat-embed-core-9.0.73.jar:9.0.73]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:337) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.access.intercept.AuthorizationFilter.doFilter(AuthorizationFilter.java:96) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:122) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:116) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:126) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:81) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:109) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:149) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at com.example.banque.configuration.JwtRequestFilter.doFilterInternal(JwtRequestFilter.java:64) ~[classes/:na]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.26.jar:5.3.26]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:103) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:89) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:346) ~[spring-security-web-5.7.7.jar:5.7.7]
at org.springframework.web.filter.CorsFilter.doFilterInternal(CorsFilter.java:91) ~[spring-web-5.3.26.jar:5.3.26]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) ~[spring-web-5.3.26.jar:5.3.26]
jwt 请求过滤器：
@Component
public class JwtRequestFilter extends OncePerRequestFilter {
@Autowired
private JwtUtil jwtUtil;
@Autowired
private JwtService jwtService;
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
FilterChain filterChain) throws ServletException, IOException {
final String header =request.getHeader("Autorisation");
String jwtToken=null;
String agentMat=null;
if (header != null && header.startsWith("Bearer ")){
jwtToken= header.substring(7);
try{
agentMat=jwtUtil.getAgentMat(jwtToken);
}catch(IllegalArgumentException e) {
System.out.println("Ne peut pas récupérer le token");
}catch (ExpiredJwtException e){
System.out.println("Le token a expiré");
}
}else{
System.out.println("Le token ne commence pas avec Bearer");
}
if (agentMat != null && SecurityContextHolder.getContext().getAuthentication() == null){
UserDetails userDetails= jwtService.loadUserByUsername(agentMat);
if (jwtUtil.validateToken(jwtToken, userDetails)){
UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken =new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
usernamePasswordAuthenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
SecurityContextHolder.getContext().setAuthentication(usernamePasswordAuthenticationToken);
}
}
/*this is the line with error*/filterChain.doFilter(request,response);
}
}
jwt 服务： @服务 公共类 JwtService 实现 UserDetailsService {
@Autowired
private AgentsDao agentsDao;
@Autowired
private JwtUtil jwtUtil;
private AuthenticationManager authenticationManager;
public JwtResponse createJwtToken(JwtRequest jwtRequest) throws Exception{
String agentMat= jwtRequest.getAgentMat();
String agentPassword= jwtRequest.getAgentPassword();
/*error*/authentication(agentMat,agentPassword);
final UserDetails userDetails =loadUserByUsername(agentMat);
String newToken = jwtUtil.generateToken(userDetails);
Agents agents = agentsDao.findById(agentMat).get();
return new JwtResponse(agents,newToken);
}
private void authentication(String agentMat,String agentPassword) throws Exception{
try {
/*error here*/authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(agentMat, agentPassword));
}catch(DisabledException e){
throw new Exception("Utilisateur désactivé!");
}catch(BadCredentialsException e){
throw new Exception("Vérifiez vos cordonnées!");
}
}
@Override
public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
Agents agents= agentsDao.findById(username).get();
if (agents != null){
return new User(
agents.getMat(),
agents.getPassword(),
getAuthorities(agents)
);
}else{
throw new UsernameNotFoundException("La matricule non validée");
}
}
private Set<SimpleGrantedAuthority> getAuthorities(Agents agents) {
Set<SimpleGrantedAuthority> authorities = new HashSet<>();
Role role = agents.getRole();
authorities.add(new SimpleGrantedAuthority("ROLE_" + role.getRoleName()));
return authorities;
}
}
硬件控制器：
@RestController
@CrossOrigin
public class JwtController {
@Autowired
private JwtService jwtService;
@PostMapping({"/authentication"})
public JwtResponse createJwtToken(@RequestBody JwtRequest jwtRequest) throws Exception{
/*error*/ return jwtService.createJwtToken(jwtRequest);
}
}
这是我第一次使用 spring 和 jwt，所以我对它们不太好