Spring java.lang.IllegalStateException:无法映射处理程序'；restController'；到URL路径[/getmessages/setup/{username}/{password}/{host}/]_Spring_Spring Mvc

Spring java.lang.IllegalStateException:无法映射处理程序'；restController'；到URL路径[/getmessages/setup/{username}/{password}/{host}/]

spring spring-mvc

Spring java.lang.IllegalStateException:无法映射处理程序'；restController'；到URL路径[/getmessages/setup/{username}/{password}/{host}/],spring,spring-mvc,Spring,Spring Mvc,我对春天和servlet都是新手。我尝试使用tomcat8和Spring3.0版实现一些RESTAPI。现在，所有代码都运行良好，但在我将我的类控制器名称重命名为： “Helloworldcontroller”转换为“RestController”时出现以下错误： java.lang.IllegalStateException:无法将处理程序“restController”映射到URL路径[/getmessages/setup/{username}/{password}/{host}/]：已映射

我对春天和servlet都是新手。我尝试使用tomcat8和Spring3.0版实现一些RESTAPI。现在，所有代码都运行良好，但在我将我的类控制器名称重命名为： “Helloworldcontroller”转换为“RestController”时出现以下错误：

java.lang.IllegalStateException:无法将处理程序“restController”映射到URL路径[/getmessages/setup/{username}/{password}/{host}/]：已映射[class com.javacodegeeks.snippets.enterprise.HelloWorldController]类型的处理程序

完整堆栈跟踪是：

 HTTP Status 500 - Servlet.init() for servlet mvc-dispatcher threw exception

type Exception report

message Servlet.init() for servlet mvc-dispatcher threw exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet.init() for servlet mvc-dispatcher threw exception
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

root cause

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping': Initialization of bean failed; nested exception is java.lang.IllegalStateException: Cannot map handler 'restController' to URL path [/getmessages/setup/{username}/{password}/{host}/]: There is already handler of type [class com.javacodegeeks.snippets.enterprise.HelloWorldController] mapped.
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:290)
    org.springframework.web.servlet.DispatcherServlet.createDefaultStrategy(DispatcherServlet.java:830)
    org.springframework.web.servlet.DispatcherServlet.getDefaultStrategies(DispatcherServlet.java:799)
    org.springframework.web.servlet.DispatcherServlet.initHandlerMappings(DispatcherServlet.java:569)
    org.springframework.web.servlet.DispatcherServlet.initStrategies(DispatcherServlet.java:463)
    org.springframework.web.servlet.DispatcherServlet.onRefresh(DispatcherServlet.java:452)
    org.springframework.web.servlet.FrameworkServlet.onApplicationEvent(FrameworkServlet.java:796)
    org.springframework.web.servlet.FrameworkServlet$ContextRefreshListener.onApplicationEvent(FrameworkServlet.java:1109)
    org.springframework.web.servlet.FrameworkServlet$ContextRefreshListener.onApplicationEvent(FrameworkServlet.java:1105)
    org.springframework.context.event.GenericApplicationListenerAdapter.onApplicationEvent(GenericApplicationListenerAdapter.java:52)
    org.springframework.context.event.SourceFilteringListener.onApplicationEventInternal(SourceFilteringListener.java:100)
    org.springframework.context.event.SourceFilteringListener.onApplicationEvent(SourceFilteringListener.java:69)
    org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:98)
    org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:333)
    org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:776)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:485)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:624)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:672)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:543)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

root cause

java.lang.IllegalStateException: Cannot map handler 'restController' to URL path [/getmessages/setup/{username}/{password}/{host}/]: There is already handler of type [class com.javacodegeeks.snippets.enterprise.HelloWorldController] mapped.
    org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:296)
    org.springframework.web.servlet.handler.AbstractUrlHandlerMapping.registerHandler(AbstractUrlHandlerMapping.java:266)
    org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.detectHandlers(AbstractDetectingUrlHandlerMapping.java:82)
    org.springframework.web.servlet.handler.AbstractDetectingUrlHandlerMapping.initApplicationContext(AbstractDetectingUrlHandlerMapping.java:58)
    org.springframework.context.support.ApplicationObjectSupport.initApplicationContext(ApplicationObjectSupport.java:120)
    org.springframework.web.context.support.WebApplicationObjectSupport.initApplicationContext(WebApplicationObjectSupport.java:73)
    org.springframework.context.support.ApplicationObjectSupport.setApplicationContext(ApplicationObjectSupport.java:74)
    org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:119)
    org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:94)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:407)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1545)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
    org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:290)
    org.springframework.web.servlet.DispatcherServlet.createDefaultStrategy(DispatcherServlet.java:830)
    org.springframework.web.servlet.DispatcherServlet.getDefaultStrategies(DispatcherServlet.java:799)
    org.springframework.web.servlet.DispatcherServlet.initHandlerMappings(DispatcherServlet.java:569)
    org.springframework.web.servlet.DispatcherServlet.initStrategies(DispatcherServlet.java:463)
    org.springframework.web.servlet.DispatcherServlet.onRefresh(DispatcherServlet.java:452)
    org.springframework.web.servlet.FrameworkServlet.onApplicationEvent(FrameworkServlet.java:796)
    org.springframework.web.servlet.FrameworkServlet$ContextRefreshListener.onApplicationEvent(FrameworkServlet.java:1109)
    org.springframework.web.servlet.FrameworkServlet$ContextRefreshListener.onApplicationEvent(FrameworkServlet.java:1105)
    org.springframework.context.event.GenericApplicationListenerAdapter.onApplicationEvent(GenericApplicationListenerAdapter.java:52)
    org.springframework.context.event.SourceFilteringListener.onApplicationEventInternal(SourceFilteringListener.java:100)
    org.springframework.context.event.SourceFilteringListener.onApplicationEvent(SourceFilteringListener.java:69)
    org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:98)
    org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:333)
    org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:776)
    org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:485)
    org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:658)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:624)
    org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:672)
    org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:543)
    org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:484)
    org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
    javax.servlet.GenericServlet.init(GenericServlet.java:158)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
    org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:521)
    org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1096)
    org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:674)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
    java.lang.Thread.run(Thread.java:745)

note The full stack trace of the root cause is available in the Apache Tomcat/8.0.30 logs.
Apache Tomcat/8.0.30

这是我的web.xml：

 <?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 

http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"

    id="WebApp_ID" version="3.0">
  <display-name>Archetype Created Web Application</display-name>

    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
        <description>
        </description>
        <display-name>Mail</display-name>
        <servlet-name>Mail</servlet-name>
        <servlet-class>com.javacodegeeks.snippets.enterprise.Mail</servlet-class>
    </servlet>

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


</web-app>


Web应用程序创建的原型
mvc调度器
org.springframework.web.servlet.DispatcherServlet
1.
邮寄
邮寄
com.javacodegeeks.snippets.enterprise.Mail
mvc调度器
/
邮寄
/邮寄

my mvc-dispatcher-servlet.xml：

    <beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="
        http://www.springframework.org/schema/beans     
        http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.0.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <context:component-scan base-package="com.javacodegeeks.snippets.enterprise" />

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


/WEB-INF/
.jsp

我在从我的类Requestmapping中删除路径“/getmessages”后解决了这个问题。

您能添加控制器类吗？