网页不能访问的提示信息为
tomcat目录下的log信息为
10-Apr-2017 20:34:12.683 严重 [localhost-startStop-1] org.apache.tomcat.util.descriptor.web.WebXmlParser.parseWebXml Occurred at line 1 column 42
10-Apr-2017 20:34:12.686 严重 [localhost-startStop-1] org.apache.catalina.startup.ContextConfig.configureStart Marking this application unavailable due to previous error(s)
10-Apr-2017 20:34:12.687 严重 [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal One or more components marked the context as not correctly configured
10-Apr-2017 20:34:12.689 严重 [localhost-startStop-1] org.apache.catalina.core.StandardContext.startInternal Context [/ch1] startup failed due to previous errors
10-Apr-2017 20:34:12.934 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\ch1 has finished in 423 ms
10-Apr-2017 20:34:12.935 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\docs
10-Apr-2017 20:34:13.578 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\docs has finished in 644 ms
10-Apr-2017 20:34:13.579 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\examples
10-Apr-2017 20:34:23.938 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\examples has finished in 10,359 ms
10-Apr-2017 20:34:23.939 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\host-manager
10-Apr-2017 20:34:24.261 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\host-manager has finished in 321 ms
10-Apr-2017 20:34:24.261 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\manager
10-Apr-2017 20:34:24.319 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\manager has finished in 58 ms
10-Apr-2017 20:34:24.319 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\ROOT
10-Apr-2017 20:34:24.418 信息 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory E:\apache-tomcat-8.5.13-windows-x64\apache-tomcat-8.5.13\webapps\ROOT has finished in 99 ms
10-Apr-2017 20:34:24.423 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["http-nio-8080"]
10-Apr-2017 20:34:24.444 信息 [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler ["ajp-nio-8009"]
10-Apr-2017 20:34:24.477 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in 17150 ms
请问这是什么原因呢 应该怎么解决