JAVA Spring MVC - HTTP狀態404 - RequestMapping不工作

我開始學習Spring MVC，並且我的應用程序出現問題。當我在瀏覽器中輸入：「http://localhost:8080/addcat」時，它返回404狀態。JAVA Spring MVC - HTTP狀態404 - RequestMapping不工作

的web.xml：

<servlet> 
    <servlet-name>mvc-dispatcher</servlet-name> 
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> 
    <init-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>/WEB-INF/applicationContext.xml</param-value> 
    </init-param> 
    <load-on-startup>1</load-on-startup> 
</servlet> 

<servlet-mapping> 
    <servlet-name>mvc-dispatcher</servlet-name> 
    <url-pattern>/</url-pattern> 
</servlet-mapping> 

<context-param> 
    <param-name>contextConfigLocation</param-name> 
    <param-value>/WEB-INF/applicationContext.xml</param-value> 
</context-param> 

<listener> 
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
</listener>

的applicationContext.xml

<context:annotation-config /> 
    <context:component-scan base-package="application, dao, model, controllers" /> 
    <mvc:default-servlet-handler /> 

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
     <property name="prefix"> 
      <value>/WEB-INF/views/</value> 
     </property> 
     <property name="suffix"> 
      <value>.jsp</value> 
     </property> 
    </bean> 

</beans>

控制器：

@Controller 
public class CatController { 

    @Autowired 
    private CatDAO catDao; 

    @RequestMapping("/") 
    public String Index() { 
     return "index"; 
    } 

    @RequestMapping(value="/addcat", method = RequestMethod.GET) 
    public String addCat(Model model) { 
     return "addCat"; 
    } 

}

我在Tomcat V7.0工作。路由不適用於任何選項 - 對於「/」也是如此。

編輯：一些變化之後，我有原木從Tomcat：

paź 04, 2015 10:28:19 PM org.apache.catalina.core.AprLifecycleListener init 
INFO: 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_51\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_51/bin/server;C:/Program Files/Java/jre1.8.0_51/bin;C:/Program Files/Java/jre1.8.0_51/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;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\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files\Lenovo\Bluetooth Software\;C:\Program Files\Lenovo\Bluetooth Software\syswow64;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files (x86)\Intel\OpenCL SDK\2.0\bin\x64;C:\WINDOWS\system32\config\systemprofile\.dnx\bin;C:\Program Files\Microsoft DNX\Dnvm\;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft\Web Platform Installer\;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files (x86)\sts-bundle\sts-3.7.0.RELEASE;;. 
paź 04, 2015 10:28:19 PM org.apache.tomcat.util.digester.SetPropertiesRule begin 
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:kotki-webapp' did not find a matching property. 
paź 04, 2015 10:28:20 PM org.apache.coyote.AbstractProtocol init 
INFO: Initializing ProtocolHandler ["http-bio-8080"] 
paź 04, 2015 10:28:20 PM org.apache.coyote.AbstractProtocol init 
INFO: Initializing ProtocolHandler ["ajp-bio-8009"] 
paź 04, 2015 10:28:20 PM org.apache.catalina.startup.Catalina load 
INFO: Initialization processed in 1037 ms 
paź 04, 2015 10:28:20 PM org.apache.catalina.core.StandardService startInternal 
INFO: Starting service Catalina 
paź 04, 2015 10:28:20 PM org.apache.catalina.core.StandardEngine startInternal 
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47 
paź 04, 2015 10:28:22 PM org.apache.catalina.core.ApplicationContext log 
INFO: No Spring WebApplicationInitializer types detected on classpath 
paź 04, 2015 10:28:22 PM org.apache.catalina.core.ApplicationContext log 
INFO: Initializing Spring root WebApplicationContext 
paź 04, 2015 10:28:22 PM org.springframework.web.context.ContextLoader initWebApplicationContext 
INFO: Root WebApplicationContext: initialization started 
paź 04, 2015 10:28:23 PM org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh 
INFO: Refreshing Root WebApplicationContext: startup date [Sun Oct 04 22:28:23 CEST 2015]; root of context hierarchy 
paź 04, 2015 10:28:23 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions 
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/applicationContext.xml] 
paź 04, 2015 10:28:23 PM org.springframework.web.context.support.XmlWebApplicationContext refresh 
WARNING: Exception encountered during context initialization - cancelling refresh attempt 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'kotyController' defined in file [C:\Users\Maciej\Java\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\kotki-webapp\WEB-INF\classes\controllers\KotyController.class]: Post-processing failed of bean type [class controllers.KotyController] failed; nested exception is java.lang.IllegalStateException: Failed to introspect bean class [controllers.KotyController] for resource metadata: could not find class that it depends on 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:940) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:518) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 
Caused by: java.lang.IllegalStateException: Failed to introspect bean class [controllers.KotyController] for resource metadata: could not find class that it depends on 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:334) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:287) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:935) 
    ... 21 more 
Caused by: java.lang.NoClassDefFoundError: Ldao/KotDAO; 
    at java.lang.Class.getDeclaredFields0(Native Method) 
    at java.lang.Class.privateGetDeclaredFields(Unknown Source) 
    at java.lang.Class.getDeclaredFields(Unknown Source) 
    at org.springframework.util.ReflectionUtils.getDeclaredFields(ReflectionUtils.java:707) 
    at org.springframework.util.ReflectionUtils.doWithLocalFields(ReflectionUtils.java:649) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.buildResourceMetadata(CommonAnnotationBeanPostProcessor.java:351) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:330) 
    ... 23 more 
Caused by: java.lang.ClassNotFoundException: dao.KotDAO 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) 
    ... 30 more 

paź 04, 2015 10:28:23 PM org.springframework.web.context.ContextLoader initWebApplicationContext 
SEVERE: Context initialization failed 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'kotyController' defined in file [C:\Users\Maciej\Java\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\kotki-webapp\WEB-INF\classes\controllers\KotyController.class]: Post-processing failed of bean type [class controllers.KotyController] failed; nested exception is java.lang.IllegalStateException: Failed to introspect bean class [controllers.KotyController] for resource metadata: could not find class that it depends on 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:940) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:518) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 
Caused by: java.lang.IllegalStateException: Failed to introspect bean class [controllers.KotyController] for resource metadata: could not find class that it depends on 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:334) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:287) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:935) 
    ... 21 more 
Caused by: java.lang.NoClassDefFoundError: Ldao/KotDAO; 
    at java.lang.Class.getDeclaredFields0(Native Method) 
    at java.lang.Class.privateGetDeclaredFields(Unknown Source) 
    at java.lang.Class.getDeclaredFields(Unknown Source) 
    at org.springframework.util.ReflectionUtils.getDeclaredFields(ReflectionUtils.java:707) 
    at org.springframework.util.ReflectionUtils.doWithLocalFields(ReflectionUtils.java:649) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.buildResourceMetadata(CommonAnnotationBeanPostProcessor.java:351) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:330) 
    ... 23 more 
Caused by: java.lang.ClassNotFoundException: dao.KotDAO 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) 
    ... 30 more 

paź 04, 2015 10:28:23 PM org.apache.catalina.core.StandardContext listenerStart 
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'kotyController' defined in file [C:\Users\Maciej\Java\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\kotki-webapp\WEB-INF\classes\controllers\KotyController.class]: Post-processing failed of bean type [class controllers.KotyController] failed; nested exception is java.lang.IllegalStateException: Failed to introspect bean class [controllers.KotyController] for resource metadata: could not find class that it depends on 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:940) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:518) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:305) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:301) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:196) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:834) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:537) 
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:446) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:328) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 
Caused by: java.lang.IllegalStateException: Failed to introspect bean class [controllers.KotyController] for resource metadata: could not find class that it depends on 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:334) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:287) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:935) 
    ... 21 more 
Caused by: java.lang.NoClassDefFoundError: Ldao/KotDAO; 
    at java.lang.Class.getDeclaredFields0(Native Method) 
    at java.lang.Class.privateGetDeclaredFields(Unknown Source) 
    at java.lang.Class.getDeclaredFields(Unknown Source) 
    at org.springframework.util.ReflectionUtils.getDeclaredFields(ReflectionUtils.java:707) 
    at org.springframework.util.ReflectionUtils.doWithLocalFields(ReflectionUtils.java:649) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.buildResourceMetadata(CommonAnnotationBeanPostProcessor.java:351) 
    at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.findResourceMetadata(CommonAnnotationBeanPostProcessor.java:330) 
    ... 23 more 
Caused by: java.lang.ClassNotFoundException: dao.KotDAO 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) 
    ... 30 more 

paź 04, 2015 10:28:23 PM org.apache.catalina.core.StandardContext startInternal 
SEVERE: Error listenerStart 
paź 04, 2015 10:28:23 PM org.apache.catalina.core.StandardContext startInternal 
SEVERE: Context [/kotki-webapp] startup failed due to previous errors 
paź 04, 2015 10:28:23 PM org.apache.catalina.core.ApplicationContext log 
INFO: Closing Spring root WebApplicationContext 
paź 04, 2015 10:28:24 PM org.apache.coyote.AbstractProtocol start 
INFO: Starting ProtocolHandler ["http-bio-8080"] 
paź 04, 2015 10:28:24 PM org.apache.coyote.AbstractProtocol start 
INFO: Starting ProtocolHandler ["ajp-bio-8009"] 
paź 04, 2015 10:28:24 PM org.apache.catalina.startup.Catalina start 
INFO: Server startup in 3906 ms

我的目錄結構：http://postimg.org/image/whqpqckpn/

來源

2015-10-04 xaepe

您必須在'http：// localhost：8080 /'和'addcat' – Jens

戰爭名稱之間添加戰爭名稱？這是什麼情況？ – xaepe

@Jens，還有另一種避免這種情況的方法嗎？這是在另一篇文章中提到的，但我現在有一個戰爭打包的應用程序，似乎解決'http：// localhost：8080 /'，但我似乎無法找到配置上的差異。 – ChiefTwoPencils

這似乎是這個問題：

java.lang.IllegalStateException: Failed to introspect bean class 
[controllers.KotyController] for resource metadata: could not find 
class that it depends on

你控制器取決於CatDAO，所以看起來問題是CatDAO類沒有彈簧註解n將其標記爲bean或不在「dao」包中。這也可能是拼寫錯誤，因爲您似乎也有關於「dao.KotDAO」類的錯誤消息。你還沒有列出你的項目文件結構，所以我們不知道它是哪一個。

來源

2015-10-04 20:57:34 eis

我用我的項目文件結構添加了圖像。 – xaepe

JAVA Spring MVC - HTTP狀態404 - RequestMapping不工作

回答

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