有一个小的Web程序源代码，没有问题，因为在我在计算机上测试的同学中，我自己的环境tomcat服务器在错误之后运行的tomcat服务器只能访问LocalHost8080无法访问项目页面，显示404。还尝试编译发布到WebApps的项目手册启动，但仍无法访问该项目。然后，我重新配置了myeclipse tomcat的整个环境。它持续了好几次，即Myeclispe已被重新加载，Tomcat改变了一些。那么问题是什么呢？这是启动后的服务器日志：``
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server version: Apache Tomcat/7.0.78
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server built: May 10 2017 15:02:19 UTC
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Server number: 7.0.78.0
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Name: Windows 7
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: OS Version: 6.1
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Architecture: amd64
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Java Home: D:Javajdk1.8jre
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Version: 1.8.0_102-b14
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: JVM Vendor: Oracle Corporation
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_BASE: D:apache-tomcat-7.0.78
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: CATALINA_HOME: D:apache-tomcat-7.0.78
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.home=D:apache-tomcat-7.0.78
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dcatalina.base=D:apache-tomcat-7.0.78
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.endorsed.dirs=D:apache-tomcat-7.0.78/common/endorsed
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.io.tmpdir=D:apache-tomcat-7.0.78temp
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Djava.library.path=D:Javajdk1.8bin;D:apache-tomcat-7.0.78bin
五月 31, 2017 9:28:03 上午 org.apache.catalina.startup.VersionLoggerListener log
信息: Command line argument: -Dsun.io.useCanonCaches=false
五月 31, 2017 9:28:03 上午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: Loaded APR based Apache Tomcat Native library 1.2.12 using APR version 1.5.2.
五月 31, 2017 9:28:03 上午 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
五月 31, 2017 9:28:04 上午 org.apache.catalina.core.AprLifecycleListener initializeSSL
信息: OpenSSL successfully initialized (OpenSSL 1.0.2k 26 Jan 2017)
五月 31, 2017 9:28:07 上午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-apr-8080"]
五月 31, 2017 9:28:07 上午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["ajp-apr-8009"]
五月 31, 2017 9:28:07 上午 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 6195 ms
五月 31, 2017 9:28:07 上午 org.apache.catalina.core.StandardService startInternal
信息: Starting service Catalina
五月 31, 2017 9:28:07 上午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.78
五月 31, 2017 9:28:07 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:apache-tomcat-7.0.78webappsdocs
五月 31, 2017 9:28:08 上午 org.apache.catalina.util.SessionIdGeneratorBase createSecureRandom
信息: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [765] milliseconds.
五月 31, 2017 9:28:08 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:apache-tomcat-7.0.78webappsdocs has finished in 1,310 ms
五月 31, 2017 9:28:08 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:apache-tomcat-7.0.78webappsexamples
五月 31, 2017 9:28:09 上午 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
五月 31, 2017 9:28:09 上午 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
五月 31, 2017 9:28:09 上午 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@29107c23')
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:apache-tomcat-7.0.78webappsexamples has finished in 781 ms
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:apache-tomcat-7.0.78webappshost-manager
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:apache-tomcat-7.0.78webappshost-manager has finished in 93 ms
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:apache-tomcat-7.0.78webappsmanager
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:apache-tomcat-7.0.78webappsmanager has finished in 78 ms
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:apache-tomcat-7.0.78webappsROOT
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:apache-tomcat-7.0.78webappsROOT has finished in 94 ms
五月 31, 2017 9:28:09 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory D:apache-tomcat-7.0.78webappsTax
五月 31, 2017 9:28:11 上午 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.
五月 31, 2017 9:28:11 上午 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.
五月 31, 2017 9:28:14 上午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory D:apache-tomcat-7.0.78webappsTax has finished in 4,543 ms
五月 31, 2017 9:28:14 上午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-apr-8080"]
五月 31, 2017 9:28:14 上午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-apr-8009"]
五月 31, 2017 9:28:14 上午 org.apache.catalina.startup.Catalina start
信息: Server startup in 7174 ms
检查项目的上下文根。右键单击该项目，然后选择"属性"。然后，如果使用MyeClipse 2017，请查看项目Facets-> Web以找到Web上下文root。或者，如果在2016年之前使用MyeClipse 2013，请查看项目属性中的MyeClipse-> Project Facets-> Web。确保您通过输入http：//localhost：8080，然后是项目的上下文根来访问项目(假设已正确部署(。例如，如果您的上下文根为" my-app"，则输入" http：//localhost：8080/my-app"。如果这不起作用，您的项目可能没有部署，您将必须在部署过程中提供任何错误的详细信息。