错误信息如下：
六月 11, 2018 1:58:35 下午 org.apache.tomcat.util.digester.SetPropertiesRule begin 警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:rtda' did not find a matching property. 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server version: Apache Tomcat/7.0.88 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server built: May 7 2018 11:12:57 UTC 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Server number: 7.0.88.0 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: OS Name: Windows 7 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: OS Version: 6.1 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Architecture: amd64 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Java Home: D:Program FilesJavajdk1.7.0_80jre 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: JVM Version: 1.7.0_80-b15 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: JVM Vendor: Oracle Corporation 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: CATALINA_BASE: D: omcatapache-tomcat-7.0.88 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: CATALINA_HOME: D: omcatapache-tomcat-7.0.88 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -agentlib:jdwp=transport=dt_socket,suspend=y,address=localhost:53060 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dcatalina.base=D: omcatapache-tomcat-7.0.88 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dcatalina.home=D: omcatapache-tomcat-7.0.88 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dwtp.deploy=D: omcatapache-tomcat-7.0.88webapps 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Djava.endorsed.dirs=D: omcatapache-tomcat-7.0.88endorsed 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.VersionLoggerListener log 信息: Command line argument: -Dfile.encoding=UTF-8 六月 11, 2018 1:58:35 下午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent 信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:Program FilesJavajdk1.7.0_80in;C:WindowsSunJavain;C:Windowssystem32;C:Windows;D:Program FilesJavajdk1.7.0_80jrein;D:/Program Files/Java/jdk1.7.0_80/bin/../jre/bin/server;D:/Program Files/Java/jdk1.7.0_80/bin/../jre/bin;D:/Program Files/Java/jdk1.7.0_80/bin/../jre/lib/amd64;D:mavenapache-maven-3.5.0in;D:Program FilesJavajdk1.7.0_80in;C:Windowssystem32;C:Windows;C:WindowsSystem32Wbem;C:WindowsSystem32WindowsPowerShellv1.0;D:Program FilesTortoiseSVNin;C:Program Files (x86)MySQLMySQL Server 5.5in;D:IDEeclipse;;. 六月 11, 2018 1:58:35 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-bio-8080"] 六月 11, 2018 1:58:35 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["ajp-bio-8009"] 六月 11, 2018 1:58:35 下午 org.apache.catalina.startup.Catalina load 信息: Initialization processed in 847 ms 六月 11, 2018 1:58:35 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Catalina 六月 11, 2018 1:58:35 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.88 六月 11, 2018 1:58:37 下午 org.apache.catalina.startup.TldConfig execute 信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 六月 11, 2018 1:58:37 下午 org.apache.catalina.core.ApplicationContext log 信息: No Spring WebApplicationInitializer types detected on classpath 六月 11, 2018 1:58:37 下午 org.apache.catalina.core.ApplicationContext log 信息: Set web app root system property: 'webapp.root' = [D: omcatapache-tomcat-7.0.88webapps tda] 六月 11, 2018 1:58:37 下午 org.apache.catalina.core.ApplicationContext log 信息: Initializing log4j from [classpath:log4j.xml] 六月 11, 2018 1:58:37 下午 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.util.Log4jConfigListener java.lang.IllegalArgumentException: Invalid 'log4jConfigLocation' parameter: class path resource [log4j.xml] cannot be resolved to URL because it does not exist at org.springframework.web.util.Log4jWebConfigurer.initLogging(Log4jWebConfigurer.java:155) at org.springframework.web.util.Log4jConfigListener.contextInitialized(Log4jConfigListener.java:45) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5157) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5680) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1702) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1692) 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) 六月 11, 2018 1:58:37 下午 org.apache.catalina.core.ApplicationContext log 信息: Initializing Spring root WebApplicationContext log4j:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info. 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanDefinitionStoreException: Invalid bean definition with name 'dataSource' defined in class path resource [spring/applicationContext.xml]: Could not resolve placeholder 'dbcp.driver' at org.springframework.beans.factory.config.PlaceholderConfigurerSupport.doProcessProperties(PlaceholderConfigurerSupport.java:209) at org.springframework.beans.factory.config.PropertyPlaceholderConfigurer.processProperties(PropertyPlaceholderConfigurer.java:220) at org.springframework.beans.factory.config.PropertyResourceConfigurer.postProcessBeanFactory(PropertyResourceConfigurer.java:84) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:681) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:656) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:446) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:385) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:284) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5157) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5680) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1702) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1692) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.StandardContext startInternal 严重: One or more listeners failed to start. Full details will be found in the appropriate container log file 六月 11, 2018 1:58:39 下午 org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom 警告: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [105] milliseconds. 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.StandardContext startInternal 严重: Context [/rtda] startup failed due to previous errors 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.ApplicationContext log 信息: Closing Spring root WebApplicationContext 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.ApplicationContext log 信息: Shutting down log4j 六月 11, 2018 1:58:39 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory D: omcatapache-tomcat-7.0.88webappsdocs 六月 11, 2018 1:58:39 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deployment of web application directory D: omcatapache-tomcat-7.0.88webappsdocs has finished in 86 ms 六月 11, 2018 1:58:39 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory D: omcatapache-tomcat-7.0.88webappsexamples 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.ApplicationContext log 信息: ContextListener: contextInitialized() 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.ApplicationContext log 信息: SessionListener: contextInitialized() 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.ApplicationContext log 信息: ContextListener: attributeAdded('StockTicker', 'async.Stockticker@4984fd2f') 六月 11, 2018 1:58:39 下午 org.apache.catalina.core.ApplicationContext log 信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@34ed0665') 六月 11, 2018 1:58:39 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deployment of web application directory D: omcatapache-tomcat-7.0.88webappsexamples has finished in 338 ms 六月 11, 2018 1:58:39 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory D: omcatapache-tomcat-7.0.88webappshost-manager 六月 11, 2018 1:58:40 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deployment of web application directory D: omcatapache-tomcat-7.0.88webappshost-manager has finished in 154 ms 六月 11, 2018 1:58:40 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory D: omcatapache-tomcat-7.0.88webappsmanager 六月 11, 2018 1:58:40 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deployment of web application directory D: omcatapache-tomcat-7.0.88webappsmanager has finished in 77 ms 六月 11, 2018 1:58:40 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deploying web application directory D: omcatapache-tomcat-7.0.88webappsROOT 六月 11, 2018 1:58:40 下午 org.apache.catalina.startup.HostConfig deployDirectory 信息: Deployment of web application directory D: omcatapache-tomcat-7.0.88webappsROOT has finished in 67 ms 六月 11, 2018 1:58:40 下午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["http-bio-8080"] 六月 11, 2018 1:58:40 下午 org.apache.coyote.AbstractProtocol start 信息: Starting ProtocolHandler ["ajp-bio-8009"] 六月 11, 2018 1:58:40 下午 org.apache.catalina.startup.Catalina start 信息: Server startup in 4985 ms
问题描述：
以上信息是tomcat在启动项目的时候报的错误信息，发现没有找到配置文件，实际上配置文件在项目中是存在的，但是，在编译过程中，配置文件没有能加载到编译后的项目中。
就造成了，找不到这些怕配置文件。
解决方案：
1.在确定jdk和maven没有问题的时候，进行第二步操作；
2.选择项目，右键“Maven”,选择“Select Maven profiles”,勾选dev选项，点击：OK按钮