Spring MVC应用程序不适用于Tomcat和Eclipse

Question

I'm having a lot of trouble trying to use Spring Framework and a don't know where is the error. I'm deploying the application using Tomcat 7.0.68.

When I try to use the URL ( http://localhost:8080/fj21-spring/olaMundo ) I'm getting a 404 error, but its should be mapped to call my Action method on my Controller class, as below:

package com.caelum.tarefas.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class TarefasController {

  @RequestMapping("/olaMundo")
  public String execute(){
      return "ok";
  }
}

My pom.xml file is what follows:

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.caelum.tarefas</groupId> <artifactId>fj21-spring</artifactId> <version>0.0.1-SNAPSHOT</version> <name>fj21-spring</name> <build> <sourceDirectory>src</sourceDirectory> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>3.3</version> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.2.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>4.2.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.2.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.2.5.RELEASE</version> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.1.3</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>4.2.5.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>4.2.5.RELEASE</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>1.7.19</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.7.19</version> </dependency> </dependencies> </project> 

And my 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" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>fj21-spring</display-name> <welcome-file-list> <welcome-file>index.html</welcome-file> <welcome-file>index.htm</welcome-file> <welcome-file>index.jsp</welcome-file> <welcome-file>default.html</welcome-file> <welcome-file>default.htm</welcome-file> <welcome-file>default.jsp</welcome-file> </welcome-file-list> <servlet> <servlet-name>spring</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>spring</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app> 

My Spring XML configuration file:

 <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" 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.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> <context:component-scan base-package="com.caelum.tarefas" /> <mvc:annotation-driven></mvc:annotation-driven> <bean class="org.springframework.web.servlet.view.UrlBasedViewResolver"> <property name="prefix" value="/WEB-INF/views/" /> <property name="suffix" value=".jsp" /> </bean> </beans> 

I expect that someone could help me. I had tryed to recreated the Server in Eclipse, deleted the project and create another one, but until now nothing worked.

Thank you!

EDIT

After change my annotation on Controller class to @RequestMapping(value="/olaMundo"), the Tomcat write a stack trace on console, which follows (maybe I missed this stack trace before too):

GRAVE: Servlet [spring] in web application [/fj21-spring] threw load() exception
java.lang.ClassNotFoundException: org.springframework.web.servlet.DispatcherServlet
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1858)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1701)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:504)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:486)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:113)
    at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1146)
    at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1085)
    at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5318)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5610)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1572)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1562)
    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)

Answer 1

It looks like the application your deployed can't find the spring libs enter link description here

may this question can help you

Answer 2

Is the jsp you are trying to display called "ok.jsp"? If not this is what your controller is looking for in your views folder when it returns "ok".

Try replacing your @RequestMapping("/olaMundo") with @RequestMapping(value="/olaMundo")

Answer 3

I see ClassNotFoundException. check the jar file in lib dir and check the configuration like this. properties --> deployment assembly