对于每个请求，拦截器将被调用约10至15次。 这是代码...
@Component
public class CommonInterceptor implements HandlerInterceptor {
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
if (request.getDispatcherType().name().equals(DispatcherType.REQUEST.name()))
System.out.println("Pre Handle method is Calling");
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
ModelAndView modelAndView) throws Exception {
System.out.println("Post Handle method is Calling");
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
Exception exception) throws Exception {
System.out.println("Request and Response is completed");
}
}
@Configuration
public class CommonInterceptorAppConfig implements WebMvcConfigurer
{
@Autowired
CommonInterceptor commonInterceptor;
@Override
public void addInterceptors(InterceptorRegistry registry)
{
registry.addInterceptor(commonInterceptor);
}
}
我有普通的休息控制器... 这是我第一次在堆栈溢出时添加问题，因此，如果缩进或其他任何问题...请忽略，不要在注释中烘烤我...
在日志末尾，您会看到它已被多次调用。 登录时，打印了prehandler方法，然后打印了我的身份验证行，最后，相同的prehandler方法得到了多次调用...
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.3.RELEASE)
2020-03-20 23:36:49.861 INFO 4676 --- [ restartedMain] com.eps.Test : Starting Test on DESKTOP-I6G5DLE with PID 4676 (started by rocky in E:\SpringBoot Project\eps)
2020-03-20 23:36:49.865 INFO 4676 --- [ restartedMain] com.eps.Test : No active profile set, falling back to default profiles: default
2020-03-20 23:36:49.919 INFO 4676 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-03-20 23:36:49.919 INFO 4676 --- [ restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-03-20 23:36:50.810 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2020-03-20 23:36:50.811 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2020-03-20 23:36:50.830 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 7ms. Found 0 repository interfaces.
2020-03-20 23:36:51.047 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2020-03-20 23:36:51.048 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2020-03-20 23:36:51.217 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 167ms. Found 13 repository interfaces.
2020-03-20 23:36:51.224 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2020-03-20 23:36:51.224 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2020-03-20 23:36:51.238 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.ActionMstRepository.
2020-03-20 23:36:51.239 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.ChapterMstRepository.
2020-03-20 23:36:51.239 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.CollegeMstRepository.
2020-03-20 23:36:51.240 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.MediumMstRepository.
2020-03-20 23:36:51.240 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.MenuMstRepository.
2020-03-20 23:36:51.240 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.OrganisationMstRepository.
2020-03-20 23:36:51.241 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.RoleMstRepository.
2020-03-20 23:36:51.241 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.StandardMstRepository.
2020-03-20 23:36:51.243 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.SubjectMstRepository.
2020-03-20 23:36:51.244 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.UniversityMstRepository.
2020-03-20 23:36:51.244 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.UserMenuRepository.
2020-03-20 23:36:51.246 INFO 4676 --- [ restartedMain] .RepositoryConfigurationExtensionSupport : Spring Data Redis - Could not safely identify store assignment for repository candidate interface com.eps.repositories.UserRepository.
2020-03-20 23:36:51.256 INFO 4676 --- [ restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 31ms. Found 1 repository interfaces.
2020-03-20 23:36:51.819 INFO 4676 --- [ restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$fc51ac80] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-03-20 23:36:52.365 INFO 4676 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8082 (http)
2020-03-20 23:36:52.404 INFO 4676 --- [ restartedMain] o.apache.catalina.core.StandardService : Starting service [Tomcat]
2020-03-20 23:36:52.404 INFO 4676 --- [ restartedMain] org.apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.16]
2020-03-20 23:36:52.412 INFO 4676 --- [ restartedMain] o.a.catalina.core.AprLifecycleListener : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jre1.8.0_211\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_211/bin/server;C:/Program Files/Java/jre1.8.0_211/bin;C:/Program Files/Java/jre1.8.0_211/lib/amd64;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\CrSSL\bin;C:\WINDOWS\System32\OpenSSH\;E:\apache-maven-3.6.0\bin;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\Users\rocky\AppData\Local\Microsoft\WindowsApps;C:\Program Files\Java\jdk1.8.0_211\bin;C:\Users\rocky\AppData\Local\Programs\Microsoft VS Code\bin;"C:\WINDOWS\system32;";C:\Users\rocky\AppData\Roaming\npm;;E:\Software\sts-4.2.1.RELEASE;;.]
2020-03-20 23:36:52.792 INFO 4676 --- [ restartedMain] 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.
2020-03-20 23:36:52.798 INFO 4676 --- [ restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2020-03-20 23:36:52.798 INFO 4676 --- [ restartedMain] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 2879 ms
2020-03-20 23:36:53.106 INFO 4676 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Starting...
2020-03-20 23:36:53.233 INFO 4676 --- [ restartedMain] com.zaxxer.hikari.HikariDataSource : HikariPool-1 - Start completed.
2020-03-20 23:36:53.300 INFO 4676 --- [ restartedMain] o.hibernate.jpa.internal.util.LogHelper : HHH000204: Processing PersistenceUnitInfo [
name: default
...]
2020-03-20 23:36:53.377 INFO 4676 --- [ restartedMain] org.hibernate.Version : HHH000412: Hibernate Core {5.3.7.Final}
2020-03-20 23:36:53.381 INFO 4676 --- [ restartedMain] org.hibernate.cfg.Environment : HHH000206: hibernate.properties not found
2020-03-20 23:36:53.559 INFO 4676 --- [ restartedMain] o.hibernate.annotations.common.Version : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
2020-03-20 23:36:54.234 INFO 4676 --- [ restartedMain] org.hibernate.dialect.Dialect : HHH000400: Using dialect: org.hibernate.dialect.MySQL5Dialect
2020-03-20 23:36:55.199 INFO 4676 --- [ restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-03-20 23:36:55.863 INFO 4676 --- [ restartedMain] o.s.b.d.a.OptionalLiveReloadServer : LiveReload server is running on port 35729
2020-03-20 23:36:56.192 INFO 4676 --- [ restartedMain] o.s.s.web.DefaultSecurityFilterChain : Creating filter chain: any request, [org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter@6c46a704, org.springframework.security.web.context.SecurityContextPersistenceFilter@432fd22b, org.springframework.security.web.header.HeaderWriterFilter@1fb4d30b, org.springframework.security.web.authentication.logout.LogoutFilter@5e9dcc85, org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter@5738e034, org.springframework.security.web.savedrequest.RequestCacheAwareFilter@436619c, org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter@5d8e8d49, org.springframework.security.web.authentication.AnonymousAuthenticationFilter@754b7f0, org.springframework.security.web.session.SessionManagementFilter@53bfc5e4, org.springframework.security.web.access.ExceptionTranslationFilter@601e128d, org.springframework.security.web.access.intercept.FilterSecurityInterceptor@5e5ccd5c]
2020-03-20 23:36:56.390 INFO 4676 --- [ restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2020-03-20 23:36:56.427 WARN 4676 --- [ restartedMain] aWebConfiguration$JpaWebMvcConfiguration : 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
2020-03-20 23:36:57.696 INFO 4676 --- [ restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat started on port(s): 8082 (http) with context path ''
2020-03-20 23:36:57.699 INFO 4676 --- [ restartedMain] com.eps.Test : Started Test in 8.334 seconds (JVM running for 9.851)
2020-03-20 23:42:10.598 INFO 11544 --- [nio-8082-exec-2] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-03-20 23:42:10.598 INFO 11544 --- [nio-8082-exec-2] o.s.web.servlet.DispatcherServlet : Initializing Servlet 'dispatcherServlet'
2020-03-20 23:42:10.614 INFO 11544 --- [nio-8082-exec-2] o.s.web.servlet.DispatcherServlet : Completed initialization in 16 ms
2020-03-20 23:42:10.793 INFO 11544 --- [nio-8082-exec-2] o.h.h.i.QueryTranslatorFactoryInitiator : HHH000397: Using ASTQueryTranslatorFactory
Pre Handle method is Calling
inside dashboard username = com.eps.helper.UserPrincipal@7f5b0017 --- 1001 password = null
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
Pre Handle method is Calling
答案 0 :(得分：2)
每个js和css文件都被调用了... 因此，通过在addPathPatterns中添加我的应用程序URL前缀，它只能被调用一次。
@Configuration
public class CommonInterceptorAppConfig implements WebMvcConfigurer
{
@Autowired
CommonInterceptor commonInterceptor;
@Override
public void addInterceptors(InterceptorRegistry registry)
{
registry.addInterceptor(commonInterceptor).addPathPatterns("/application/**");
}
}