关于tomcat部署应用无法访问前端页面的问题_Tomcat

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最近在做实训项目的时候使用到了 ssm框架，在项目环境搭建好后，运行程序时，一直遇到页面访问404错误。

项目运行日志如下：

十一月 13, 2020 11:56:07 上午 org.apache.catalina.core.AprLifecycleListener init
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:\\java\\jdk\\bin;C:\\Windows\\Sun\\Java\\bin;C:\\Windows\\system32;C:\\Windows;D:/java/jdk/bin/../jre/bin/server;D:/java/jdk/bin/../jre/bin;D:/java/jdk/bin/../jre/lib/amd64;D:\\java\\jdk\\bin;D:\\java\\JRE\\bin;D:\\ernv\\gradle\\gradle-6.6.1-all\\gradle-6.6.1\\bin;C:\\sqlite3;C:\\ProgramData\\Oracle\\Java\\javapath;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\iCLS\\;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\iCLS\\;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Windows\\System32\\OpenSSH\\;C:\\Program Files (x86)\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files\\Intel\\Intel(R) Management Engine Components\\DAL;C:\\Program Files\\Intel\\WiFi\\bin\\;C:\\Program Files\\Common Files\\Intel\\WirelessCommon\\;C:\\Program Files (x86)\\NVIDIA Corporation\\PhysX\\Common;C:\\Program Files (x86)\\Microsoft SQL Server\\100\\Tools\\Binn\\;C:\\Program Files\\Microsoft SQL Server\\100\\Tools\\Binn\\;C:\\Program Files\\Microsoft SQL Server\\100\\DTS\\Binn\\;d:\\python\\Scripts;D:\\爬虫所需软件\\数据库\\;D:\\Git\\cmd;D:\\bin;C:\\Program Files (x86)\\Microsoft SQL Server\\110\\Tools\\Binn\\;C:\\Program Files\\Microsoft SQL Server\\110\\Tools\\Binn\\;C:\\Program Files\\Microsoft SQL Server\\110\\DTS\\Binn\\;D:\\MySQL\\MySQL Server 5.5\\bin;D:\\Python;C:\\Program Files\\Terminus\\Terminus.exe;D:\\tools\\myBlog\\node-v12.1.0-win-x64;D:\\tools\\myBlog\\node-v12.1.0-win-x64\\node-global;D:\\tools\\myBlog\\node-v12.1.0-win-x64\\node-global\\node_modules\\hexo\\node_modules\\.bin;D:\\ernv\\java\\apache-maven-3.6.3-bin\\apache-maven-3.6.3\\bin;D:\\ernv\\lib\\opencv\\Opencv3.4.2\\Opencv3.4.2\\WindowSoft\\opencv\\build\\x64\\vc15\\bin;I:\\软件安装包\\mrunit\\windows系统hadoop插件-winutilsmaster\\winutils-master\\hadoop-2.6.3\\bin;C:\\Users\\erbin\\AppData\\Local\\Microsoft\\WindowsApps;D:\\ProGramTool\\byTool\\PyCharm 2018.3.2\\bin;D:\\爬虫所需软件\\数据库\\mysql-5.6.43-winx64\\bin;D:\\tools\\Programs\\Fiddler;D:\\IDE\\JetBrains\\IDEA 2020.1\\IntelliJ IDEA 2020.1\\bin;C:\\Users\\erbin\\AppData\\Local\\Pandoc\\;D:\\go\\idea\\GoLand 2020.1\\bin;D:\\eclipse-jee-neon-3-win32-x86_64\\eclipse;;.
十一月 13, 2020 11:56:07 上午 org.apache.tomcat.util.digester.SetPropertiesRule begin
警告: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property \’source\’ to \’org.eclipse.jst.j2ee.server:CRMSystem\’ did not find a matching property.
十一月 13, 2020 11:56:08 上午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler [\”http-nio-8080\”]
十一月 13, 2020 11:56:08 上午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
信息: Using a shared selector for servlet write/read
十一月 13, 2020 11:56:08 上午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler [\”ajp-nio-8009\”]
十一月 13, 2020 11:56:08 上午 org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
信息: Using a shared selector for servlet write/read
十一月 13, 2020 11:56:08 上午 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 866 ms
十一月 13, 2020 11:56:08 上午 org.apache.catalina.core.StandardService startInternal
信息: Starting service Catalina
十一月 13, 2020 11:56:08 上午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/8.0.5
十一月 13, 2020 11:56:12 上午 org.apache.catalina.core.ApplicationContext log
信息: No Spring WebApplicationInitializer types detected on classpath
十一月 13, 2020 11:56:12 上午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler [\”http-nio-8080\”]
十一月 13, 2020 11:56:12 上午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler [\”ajp-nio-8009\”]
十一月 13, 2020 11:56:12 上午 org.apache.catalina.startup.Catalina start
信息: Server startup in 3826 ms
十一月 13, 2020 11:56:13 上午 org.apache.catalina.core.ApplicationContext log
信息: Initializing Spring FrameworkServlet \’SpringMVC\’
十一月 13, 2020 11:56:13 上午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet \’SpringMVC\’: initialization started
十一月 13, 2020 11:56:13 上午 org.springframework.web.context.support.XmlWebApplicationContext prepareRefresh
信息: Refreshing WebApplicationContext for namespace \’SpringMVC-servlet\’: startup date [Fri Nov 13 11:56:13 CST 2020]; root of context hierarchy
十一月 13, 2020 11:56:13 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [G:\\Language Proctice\\java\\pro\\20201109\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\CRMSystem\\WEB-INF\\classes\\spring\\spring-dao.xml]
十一月 13, 2020 11:56:13 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [G:\\Language Proctice\\java\\pro\\20201109\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\CRMSystem\\WEB-INF\\classes\\spring\\spring-mvc.xml]
十一月 13, 2020 11:56:13 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [G:\\Language Proctice\\java\\pro\\20201109\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\CRMSystem\\WEB-INF\\classes\\spring\\spring-service.xml]
十一月 13, 2020 11:56:14 上午 org.springframework.context.support.PropertySourcesPlaceholderConfigurer loadProperties
信息: Loading properties file from class path resource [jdbc.properties]
十一月 13, 2020 11:56:14 上午 com.mchange.v2.log.MLog <clinit>
信息: MLog clients using java 1.4+ standard logging.
十一月 13, 2020 11:56:14 上午 com.mchange.v2.c3p0.C3P0Registry banner
信息: Initializing c3p0-0.9.1.2 [built 21-May-2007 15:04:56; debug? true; trace: 10]
11:56:14,733 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback.groovy]
11:56:14,734 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Could NOT find resource [logback-test.xml]
11:56:14,734 |-INFO in ch.qos.logback.classic.LoggerContext[default] – Found resource [logback.xml] at [file:/G:/Language%20Proctice/java/pro/20201109/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/CRMSystem/WEB-INF/classes/logback.xml]
11:56:14,868 |-INFO in ch.qos.logback.core.joran.action.AppenderAction – About to instantiate appender of type [ch.qos.logback.core.ConsoleAppender]
11:56:14,878 |-INFO in ch.qos.logback.core.joran.action.AppenderAction – Naming appender as [STDOUT]
11:56:14,911 |-INFO in ch.qos.logback.core.joran.action.NestedComplexPropertyIA – Assuming default type [ch.qos.logback.classic.encoder.PatternLayoutEncoder] for [encoder] property
11:56:15,026 |-INFO in ch.qos.logback.classic.joran.action.RootLoggerAction – Setting level of ROOT logger to DEBUG
11:56:15,026 |-INFO in ch.qos.logback.core.joran.action.AppenderRefAction – Attaching appender named [STDOUT] to Logger[ROOT]
11:56:15,029 |-INFO in ch.qos.logback.classic.joran.action.ConfigurationAction – End of configuration.
11:56:15,031 |-INFO in ch.qos.logback.classic.joran.JoranConfigurator@5ad72777 – Registering current configuration as safe fallback point
11:56:15.057 [http-nio-8080-exec-2] DEBUG org.apache.ibatis.logging.LogFactory – Logging initialized using \’class org.apache.ibatis.logging.slf4j.Slf4jImpl\’ adapter.
11:56:15.272 [http-nio-8080-exec-2] DEBUG org.apache.ibatis.io.VFS – Class not found: org.jboss.vfs.VFS
11:56:15.272 [http-nio-8080-exec-2] DEBUG org.apache.ibatis.io.JBoss6VFS – JBoss 6 VFS API is not available in this environment.
11:56:15.275 [http-nio-8080-exec-2] DEBUG org.apache.ibatis.io.VFS – Class not found: org.jboss.vfs.VirtualFile
11:56:15.277 [http-nio-8080-exec-2] DEBUG org.apache.ibatis.io.VFS – VFS implementation org.apache.ibatis.io.JBoss6VFS is not valid in this environment.
11:56:15.277 [http-nio-8080-exec-2] DEBUG org.apache.ibatis.io.VFS – Using VFS adapter org.apache.ibatis.io.DefaultVFS
11:56:15.279 [http-nio-8080-exec-2] DEBUG o.m.spring.SqlSessionFactoryBean – Scanned package: \’com.crm.entity\’ for aliases
11:56:15.367 [http-nio-8080-exec-2] DEBUG o.m.spring.SqlSessionFactoryBean – Parsed configuration file: \’class path resource [mybatis-config.xml]\’
11:56:15.369 [http-nio-8080-exec-2] DEBUG o.m.spring.SqlSessionFactoryBean – Property \’mapperLocations\’ was not specified or no matching resources found
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
信息: Looking for @ControllerAdvice: WebApplicationContext for namespace \’SpringMVC-servlet\’: startup date [Fri Nov 13 11:56:13 CST 2020]; root of context hierarchy
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter initControllerAdviceCache
信息: Looking for @ControllerAdvice: WebApplicationContext for namespace \’SpringMVC-servlet\’: startup date [Fri Nov 13 11:56:13 CST 2020]; root of context hierarchy
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.handler.SimpleUrlHandlerMapping registerHandler
信息: Mapped URL path [/resources/**] onto handler \’org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0\’
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.handler.SimpleUrlHandlerMapping registerHandler
信息: Mapped URL path [/**] onto handler \’org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler#0\’
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet \’SpringMVC\’: initialization completed in 3240 ms

刚开始，我觉得是ssm环境问题，spirng-mvc没有正确配置，但是仔细观察日志，可以看到：

spring mvc 已经成功接管了我的静态资源

十一月 13, 2020 11:56:13 上午 org.springframework.web.servlet.DispatcherServlet initServletBean
信息: FrameworkServlet \’SpringMVC\’: initialization started
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.DispatcherServlet initServletBean

spring三个配置文件都已经加载进环境

十一月 13, 2020 11:56:13 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [G:\\Language Proctice\\java\\pro\\20201109\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\CRMSystem\\WEB-INF\\classes\\spring\\spring-dao.xml]
十一月 13, 2020 11:56:13 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [G:\\Language Proctice\\java\\pro\\20201109\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\CRMSystem\\WEB-INF\\classes\\spring\\spring-mvc.xml]
十一月 13, 2020 11:56:13 上午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
信息: Loading XML bean definitions from file [G:\\Language Proctice\\java\\pro\\20201109\\.metadata\\.plugins\\org.eclipse.wst.server.core\\tmp0\\wtpwebapps\\CRMSystem\\WEB-INF\\classes\\spring\\spring-service.xml]

资源目录和orm映射模型目录已经加载

十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.handler.SimpleUrlHandlerMapping registerHandler
信息: Mapped URL path [/resources/**] onto handler \’org.springframework.web.servlet.resource.ResourceHttpRequestHandler#0\’
十一月 13, 2020 11:56:16 上午 org.springframework.web.servlet.handler.SimpleUrlHandlerMapping registerHandler
信息: Mapped URL path [/**] onto handler \’org.springframework.web.servlet.resource.DefaultServletHttpRequestHandler#0\’

所以排除对ssm环境配置的怀疑，我再次查看tomcat。

在检验端口号未被占用等问题以后，我将tomcat8.0.5换成了tomcat8.5。
结果是成功访问到了前端页面，解决了这个问题。

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