Servlet调度程序目前不可用 [英] Servlet dispatcher is currently unavailable

问题描述

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp" />

    <bean id="myDataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
        <property name="url" value="jdbc:mysql://127.0.0.1:3306/spring"/>
        <property name="username" value="monty"/>
        <property name="password" value="indian"/>
    </bean>

    <bean id="mySessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
        <property name="dataSource" ref="myDataSource" />
        <property name="annotatedClasses">
            <list>
                <value>uk.co.vinoth.spring.domain.User</value>
            </list>
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
                <prop key="hibernate.show_sql">true</prop>
                <prop key="hibernate.hbm2ddl.auto">create</prop>
            </props>
        </property>
    </bean>

    <bean id="myUserDAO" class="uk.co.vinoth.spring.dao.UserDAOImpl">
        <property name="sessionFactory" ref="mySessionFactory"/>
    </bean>

    <bean name="/user/*.htm" class="uk.co.vinoth.spring.web.UserController" >
        <property name="userDAO" ref="myUserDAO" />
    </bean>

</beans>

以上是我的bean配置，为什么我运行应用程序时会出错。我的日志文件夹是空的......

The above is my bean configuration, why do i get error when i run my application. My logs folder is empty...

org.apache.catalina.loader.StandardClassLoader@122c9df
 org.springframework.web.servlet.DispatcherServlet
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1436)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1282)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1068)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3996)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4266)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
    at org.apache.catalina.core.StandardService.start(StandardService.java:448)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Dec 22, 2010 3:44:48 PM org.apache.catalina.core.StandardContext loadOnStartup
SEVERE: Servlet /interMedix threw load() exception
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1436)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1282)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1068)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:966)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3996)
    at org.apache.catalina.core.StandardContext.start(StandardContext.java:4266)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
    at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
    at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
    at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
    at org.apache.catalina.core.StandardService.start(StandardService.java:448)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Dec 22, 2010 3:44:48 PM org.apache.coyote.http11.Http11BaseProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8181
Dec 22, 2010 3:44:48 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Dec 22, 2010 3:44:48 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/27  config=null
Dec 22, 2010 3:44:48 PM org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
Dec 22, 2010 3:44:49 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 558 ms
Dec 22, 2010 3:44:50 PM org.apache.catalina.core.StandardWrapperValve invoke
INFO: Servlet dispatcher is currently unavailable
Dec 22, 2010 3:50:18 PM org.apache.catalina.core.StandardWrapperValve invoke
INFO: Servlet dispatcher is currently unavailable

但我已将spring-web-mvc添加到包含此类文件的类路径中。

But i have added spring-web-mvc to my class path which does contain this class file.

推荐答案

但我已将spring-web-mvc添加到我的
类路径中，该路径确实包含此
类文件。

But i have added spring-web-mvc to my class path which does contain this class file.

你是如何向CLASSPATH添加内容的？

How did you add something to your CLASSPATH?

如果您正在创建一个Web应用程序，唯一合适的做法是将.class文件放在WEB下WEB-INF / lib下的-INF / classes和.jar文件。如果你做了别的什么，我会说这是错的。不应该修改启动脚本;本地环境变量将被忽略，并且不太可能在您部署到的服务器上设置。

If you're creating a web app, the only appropriate thing is to put .class files under WEB-INF/classes and .jar files under WEB-INF/lib. If you did anything else, I'd say that it's wrong. Modifications of the startup script should not be done; local environment variables will be ignored and unlikely to be set on the server you deploy to.

更新：

如果你告诉我你已经根据你的IDE做了一切，我建议你最后检查一下：看看你实际部署到Tomcat的压缩或爆炸的WAR文件，并确保你可以看到JAR。错误提到的类文件。如果它不是WAR的一部分，你必须弄清楚你的包装出了什么问题。如果您认为JAR在那里，请打开它并找到.class并检查路径。

If you tell me that you've done everything right according to your IDE, I'd recommend one last check: Look at the zipped or exploded WAR file that you actually deploy to Tomcat and make sure that you can see the JAR with the .class file that the error mentions. If it's not part of the WAR, you have to figure out what went wrong with your packaging. If you think the JAR is there, open it and find the .class and check the path.

您必须相信您看到的错误消息。而不是说我做的一切都是正确的，最好说我错过了什么？

You have to believe the error message you see. Instead of saying "I'm doing everything right", it's better to say "What have I missed?"

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