Single @RequestMapping для нескольких контроллеров

Question

Я пытаюсь создать единую @RequestMapping значение для 2-х или 3-х контроллеров, к сожалению, я получаю ошибку

Например:

@Controller 
public class contatcs { 

    @RequestMapping(value="Save", params="m=contacts") 
    public ModelAndView SaveContacts(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/savecontacts"); 
    } 

    @RequestMapping(value="update", params="m=contacts") 
    public ModelAndView UpdateContacts(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/updatecontacts"); 
    } 
} 



@Controller 
public class clients { 

    @RequestMapping(value="Save", params="m=clients") 
    public ModelAndView SaveClients(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/saveclients"); 
    } 

    @RequestMapping(value="update", params="m=clients") 
    public ModelAndView updateClients(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/updateclients"); 
    } 
} 

в выше я использую Save в 2 контроллер, так что я получаю ошибку Если я использую с одним контроллером он работает, как я ожидал

Ошибка:

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 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping#0': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Cannot map handler [clients] to URL path [//save]: There is already handler [crm.venkat.controller.Clients@7e47dc12] mapped. 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:450) 
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:290) 
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:287) 
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:189) 
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:562) 
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:871) 
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423) 
    at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:272) 
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:196) 
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47) 
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973) 
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467) 
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) 
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) 
    at java.util.concurrent.FutureTask.run(FutureTask.java:262) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: java.lang.IllegalStateException: Cannot map handler [clientCompaniesController] to URL path [//Search]: There is already handler [crm.venkat.controller.ClientCompaniesController@7e47dc12] mapped. 
    at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:376) 
    at org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:348) 
    at org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.detectHandlers(AbstractDetectingUrlHandlerMapping.java:82) 
    at org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.initApplicationContext(AbstractDetectingUrlHandlerMapping.java:58) 
    at org.springframework.context.support.ApplicationObjectSupport.initApplicationContext(ApplicationObjectSupport.java:119) 
    at org.springframework.web.context.support.WebApplicationObjectSupport.initApplicationContext(WebApplicationObjectSupport.java:71) 
    at org.springframework.context.support.ApplicationObjectSupport.setApplicationContext(ApplicationObjectSupport.java:73) 
    at org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:99) 
    at org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:82) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:394) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1396) 
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513) 
    ... 20 more 

Answer 1

Вы не можете иметь такой же url-mapping для различных контроллеров, однако, что вы можете сделать, это:

@Controller 
@RequestMapping("/contacts") //line added here 
public class contatcs { 

    @RequestMapping(value="/Save", params="m=contacts") 
    public ModelAndView SaveContacts(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/savecontacts"); 
    } 

    @RequestMapping(value="/update", params="m=contacts") 
    public ModelAndView UpdateContacts(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/updatecontacts"); 
    } 
} 



@Controller 
@RequestMapping("/clients") //line added here 
public class clients { 

    @RequestMapping(value="/Save", params="m=clients") 
    public ModelAndView SaveClients(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/saveclients"); 
    } 

    @RequestMapping(value="/update", params="m=clients") 
    public ModelAndView updateClients(@ModelAttribute("command") ContactsBean contactsBean, 
     BindingResult result) 
    //some stuff 
    return new ModelAndView("/updateclients"); 
    } 
} 

Теперь то, что вы можете сделать, это огонь URL /contacts/Save что бы получить контроль в contacts класса SaveContacts метода и /clients/Save будет идти до client класс 'SaveClients способ. И аналогично для обновления.