IntelliJ IDEA基于maven构建的web项目找不到jar包

手把手教你搭建基于Maven的SSM框架（附源代码）：SSM框架：详细整合教程
GitHub源码地址：SSM整合框架

基于maven构建的springMVC项目，下载好jar包import后，运行提示ClassNotFoundException:

 java.lang.ClassNotFoundException: org.springframework.web.util.Log4jConfigListener
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1308)
    at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1142)
    at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:518)
    at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:499)
    at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:118)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4734)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5255)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:725)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:701)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
    at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1692)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:465)
    at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:415)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
    at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
    at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
    at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1466)
    at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
    at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1307)
    at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1399)
    at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:828)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:483)
    at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
    at sun.rmi.transport.Transport$1.run(Transport.java:178)
    at sun.rmi.transport.Transport$1.run(Transport.java:175)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.rmi.transport.Transport.serviceCall(Transport.java:174)
    at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:557)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:812)
    at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:671)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

查看项目目录下的out文件夹下的exploded项目文件，发现WEB-INF里的lib文件夹下没有用maven下的那些jar包！

找到个解决方案，右击项目，Project Structure -> Artifacts -> Output Layout，新建lib文件夹，将基于maven导入的jar包全部加进去，重新运行，顺利解决。

不知道是不是我配置的问题，按道理来说pom.xml配置好就可以直接导入了啊，起码Eclipse是可以的，由于刚转来IntelliJ IDEA，还不能定位问题在哪里，只是找了这个解决方法，如果以后找到了更好的方法再更新。附上pom.xml

<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>4.0.0modelVersion>

    <groupId>com.whu.flygroupId>
    <artifactId>FileManagerartifactId>
    <version>1.0-SNAPSHOTversion>

    <properties>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <springversion>4.3.3.RELEASEspringversion>
        <junitversion>4.12junitversion>
    properties>
         <repositories>
             <repository>
                <id>CNid>
                <name>OSChina Centralname>
                <url>http://maven.oschina.net/content/groups/public/url>
                <layout>defaultlayout>
                <snapshots>
                    <enabled>falseenabled>
                snapshots>
            repository>
        repositories>
    <dependencies>
        <dependency>
            <groupId>junitgroupId>
            <artifactId>junitartifactId>
            <version>${junitversion}version>
            <scope>testscope>
        dependency>
        <dependency>
            <groupId>log4jgroupId>
            <artifactId>log4jartifactId>
            <version>1.2.17version>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aopartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-aspectsartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-beansartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-contextartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-context-supportartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-coreartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-expressionartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jdbcartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-jmsartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-ormartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-oxmartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-txartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-webmvcartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>
        <dependency>
            <groupId>org.springframeworkgroupId>
            <artifactId>spring-testartifactId>
            <version>${springversion}version>
            <type>jartype>
            <scope>compilescope>
        dependency>

        <dependency>
            <groupId>javax.servletgroupId>
            <artifactId>jstlartifactId>
            <version>1.2version>
            <type>jartype>
            <scope>compilescope>
        dependency>

        <dependency>
            <groupId>commons-collectionsgroupId>
            <artifactId>commons-collectionsartifactId>
            <version>3.2.2version>
        dependency>

        <dependency>
            <groupId>commons-logginggroupId>
            <artifactId>commons-loggingartifactId>
            <version>1.1.1version>
        dependency>

        <dependency>
            <groupId>org.apache.commonsgroupId>
            <artifactId>commons-dbcp2artifactId>
            <version>2.1.1version>
        dependency>
        <dependency>
            <groupId>net.sf.json-libgroupId>
            <artifactId>json-libartifactId>
            <version>2.4version>
            <classifier>jdk15classifier>
        dependency>
    dependencies>
    <build>
        <finalName>FileManagerfinalName>
    build>
project>

2017.05.04更新：

新建Project的时候勾选“Create from archetype”，然后选择maven-archetype-webapp，这样项目建完后就会自动下载模板，jar包找不到的情况自然也就没有了：

建立完的项目结构如下：

2017.08.22更新：

基于SSM（Spring+SpringMVC+Mybatis）搭建了一个Java后台模板，可以直接下载使用。集成了日志框架logback和前台渲染模板FreeMarker。

详情：手把手教你搭建SSM

项目下载：GitHub