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Kein Standardkonstruktor beim Hinzufügen von Servlet-Filter im Frühjahr Boot-

2016-04-10 10 views
1

ich this other posting about how to add a servlet filter in Spring Boot lesen, aber ich bin immer einen No Default Constructor Fehler, wenn ich versuche, dieses Beispiel folgen der Zugabe eine innere WebConfig Klasse innerhalb der UiApplication.java Klassendatei.Kein Standardkonstruktor beim Hinzufügen von Servlet-Filter im Frühjahr Boot-

Ich versuche dies, weil das Hinzufügen ignoring(/api-url zu der App SecurityConfig Klasse eine Meldung verursacht, die die /api-url has an empty filter list. Ich möchte einen Servlet-Filter für /api-url hinzufügen, so dass seine Filterliste nicht mehr leer ist.

Der Code für die WebConfig innere Klasse ist:

@Configuration 
public class WebConfig { 

    @Bean 
    public FilterRegistrationBean shallowEtagHeaderFilter() { 
     FilterRegistrationBean registration = new FilterRegistrationBean(); 
     registration.setFilter(new ShallowEtagHeaderFilter()); 
     registration.setDispatcherTypes(EnumSet.allOf(DispatcherType.class)); 
     registration.addUrlPatterns("/api-url"); 
     return registration; 
    } 
}

Welche konkreten Änderungen müssen unten am Code vorgenommen werden, um die Servlet-Filter zu ermöglichen, ohne zu werfen, den Fehler zu /api-url hinzugefügt werden?

Der vollständige Code für die UiApplication.java Klasse:

@SpringBootApplication 
@Controller 
public class UiApplication extends WebMvcConfigurerAdapter { 

    @Configuration 
    public class WebConfig { 

     @Bean 
     public FilterRegistrationBean shallowEtagHeaderFilter() { 
      FilterRegistrationBean registration = new FilterRegistrationBean(); 
      registration.setFilter(new ShallowEtagHeaderFilter()); 
      registration.setDispatcherTypes(EnumSet.allOf(DispatcherType.class)); 
      registration.addUrlPatterns("/api-url"); 
      return registration; 
     } 
    } 

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

    @Bean 
    public LocaleChangeInterceptor localeChangeInterceptor() { 
     LocaleChangeInterceptor lci = new LocaleChangeInterceptor(); 
     lci.setParamName("lang"); 
     return lci; 
    } 

    @Override 
    public void addInterceptors(InterceptorRegistry registry) { 
     registry.addInterceptor(localeChangeInterceptor()); 
    } 

    @Configuration 
    @Order(SecurityProperties.ACCESS_OVERRIDE_ORDER) 
    @EnableWebSecurity 
    @EnableGlobalMethodSecurity(prePostEnabled = true) 
    protected static class SecurityConfiguration extends WebSecurityConfigurerAdapter { 

     @Override 
     public void configure(WebSecurity webSecurity) throws Exception { 
      webSecurity.ignoring().antMatchers("/api-url"); 
     } 

     @Override 
     protected void configure(HttpSecurity http) throws Exception { 
      http 
       .formLogin() 
       .and() 
       .httpBasic().and() 
       .authorizeRequests() 
        .antMatchers("/").permitAll() 
        .antMatchers("/secure**").permitAll() 
        .anyRequest().authenticated();; 
     } 
    } 
}

Und der komplette Stack-Trace des Fehlers, wenn ich versuche, das Frühlings-Boot-Glas zu starten ist:

2016-04-10 10:32:58.759 ERROR 5174 --- [   main] o.s.boot.SpringApplication    : Application startup failed 

org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) ~[spring-context-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) [spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:347) [spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:295) [spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1112) [spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1101) [spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at demo.UiApplication.main(UiApplication.java:193) [modular-0.0.1-SNAPSHOT.jar!/:0.0.1-SNAPSHOT] 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_45] 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_45] 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_45] 
    at java.lang.reflect.Method.invoke(Method.java:497) ~[na:1.8.0_45] 
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53) [modular-0.0.1-SNAPSHOT.jar!/:0.0.1-SNAPSHOT] 
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45] 
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:99) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:76) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:452) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:167) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:158) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    ... 14 common frames omitted 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'demo.UiApplication$WebConfig': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e]: No default constructor found; nested exception is java.lang.NoSuchMethodException: demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e.<init>() 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1105) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1050) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:368) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:232) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:213) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:89) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:77) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:235) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.selfInitialize(EmbeddedWebApplicationContext.java:222) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.access$000(EmbeddedWebApplicationContext.java:85) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:207) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.springframework.boot.context.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:55) ~[spring-boot-1.3.0.RELEASE.jar!/:1.3.0.RELEASE] 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5170) ~[tomcat-embed-core-8.0.28.jar!/:8.0.28] 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ~[tomcat-embed-core-8.0.28.jar!/:8.0.28] 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) ~[tomcat-embed-core-8.0.28.jar!/:8.0.28] 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) ~[tomcat-embed-core-8.0.28.jar!/:8.0.28] 
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_45] 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_45] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_45] 
    ... 1 common frames omitted 
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e]: No default constructor found; nested exception is java.lang.NoSuchMethodException: demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e.<init>() 
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:85) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1098) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    ... 33 common frames omitted 
Caused by: java.lang.NoSuchMethodException: demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e.<init>() 
    at java.lang.Class.getConstructor0(Class.java:3082) ~[na:1.8.0_45] 
    at java.lang.Class.getDeclaredConstructor(Class.java:2178) ~[na:1.8.0_45] 
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:80) ~[spring-beans-4.2.3.RELEASE.jar!/:4.2.3.RELEASE] 
    ... 34 common frames omitted 

java.lang.reflect.InvocationTargetException 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:497) 
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:53) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: org.springframework.context.ApplicationContextException: Unable to start embedded container; nested exception is org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:133) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:531) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) 
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:752) 
    at org.springframework.boot.SpringApplication.doRun(SpringApplication.java:347) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:295) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1112) 
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1101) 
    at demo.UiApplication.main(UiApplication.java:193) 
    ... 6 more 
Caused by: org.springframework.boot.context.embedded.EmbeddedServletContainerException: Unable to start embedded Tomcat 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.initialize(TomcatEmbeddedServletContainer.java:99) 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.<init>(TomcatEmbeddedServletContainer.java:76) 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getTomcatEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:452) 
    at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainerFactory.getEmbeddedServletContainer(TomcatEmbeddedServletContainerFactory.java:167) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.createEmbeddedServletContainer(EmbeddedWebApplicationContext.java:158) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.onRefresh(EmbeddedWebApplicationContext.java:130) 
    ... 14 more 
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'demo.UiApplication$WebConfig': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e]: No default constructor found; nested exception is java.lang.NoSuchMethodException: demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e.<init>() 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1105) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1050) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) 
    at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:368) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1123) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:510) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:232) 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:213) 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:89) 
    at org.springframework.boot.context.embedded.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:77) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.getServletContextInitializerBeans(EmbeddedWebApplicationContext.java:235) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.selfInitialize(EmbeddedWebApplicationContext.java:222) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.access$000(EmbeddedWebApplicationContext.java:85) 
    at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext$1.onStartup(EmbeddedWebApplicationContext.java:207) 
    at org.springframework.boot.context.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:55) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5170) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
    ... 1 more 
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e]: No default constructor found; nested exception is java.lang.NoSuchMethodException: demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e.<init>() 
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:85) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1098) 
    ... 33 more 
Caused by: java.lang.NoSuchMethodException: demo.UiApplication$WebConfig$$EnhancerBySpringCGLIB$$f410234e.<init>() 
    at java.lang.Class.getConstructor0(Class.java:3082) 
    at java.lang.Class.getDeclaredConstructor(Class.java:2178) 
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:80) 
    ... 34 more 
[[email protected] CustomLogin2]#

Quelle

2016-04-10 CodeMed

+0

Make '' Webconfig statisch ... –

+0

Welche Version von SpringBoot verwenden Sie? – Hareesh

+0

@Hareesh Ich verwende Version 1.3 von Spring Boot. – CodeMed

Antwort

4

Fabrikat Ihre WebConfig Klasse statisch:

@Configuration 
public static class WebConfig { ... }
auch

, setzen al nicht Versuchen Sie, Ihre Konfigurationen in einer Klasse in separate Klassen zu setzen.

Quelle

2016-04-10 18:34:20

+0

Danke und +1. Wenn Sie das Wort "statisch" an der angegebenen Stelle hinzugefügt haben, wurde die App kompiliert. Aber das ist die Hälfte der Frage des OP. Wie kann ich die zweite Hälfte des OPs lösen, die bestätigen würde, dass die '/ api-url' tatsächlich einen Filter hat? – CodeMed

+0

Senden Sie eine Anfrage an einen der Endpunkte, der mit 'api-url' beginnt, mit dem entsprechenden Etag-Header und setzen Sie einen Haltepunkt in' ShallowEtagHeaderFilter # doFilterInternal'. –

+0

Danke. Was meinst du mit "passender etag header?" Ich habe eine Anfrage für '/ api-url' gesendet und das Ergebnis ist das Debug-Log-Drucken'/api-url hat eine leere Filterliste'. Die eigentliche URL ist '/ registration-form', aber ich benutze den Begriff'/api-url' in diesem OP um die generischen Dinge so zu behalten, dass andere sie auch benutzen können. – CodeMed

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