java的项目启动不报错，但是为啥访问不到，像是没启动似的，全是404

Question

2021-2-3 18:27:17 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-7001
2021-2-3 18:27:17 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 204 ms
2021-2-3 18:27:17 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2021-2-3 18:27:17 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.0.28
2021-2-3 18:27:17 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2021-2-3 18:27:17 org.apache.catalina.core.StandardHost getDeployer
信息: Create Host deployer for direct deployment ( non-jmx ) 
2021-2-3 18:27:17 org.apache.catalina.core.StandardHostDeployer install
信息: Processing Context configuration file URL file:C:\apps\tomcat5.0\conf\Catalina\localhost\chatClientService.xml
2021-2-3 18:27:18 org.apache.catalina.loader.WebappClassLoader validateJarFile
信息: validateJarFile(D:\sunyard\workspace\chatClientService\WebContent\WEB-INF\lib\servlet-api.jar) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
log4j:WARN No appenders could be found for logger (org.apache.catalina.startup.TldConfig).
log4j:WARN Please initialize the log4j system properly.
2021-2-3 18:27:19 org.apache.catalina.core.StandardContext start
严重: Error listenerStart
2021-2-3 18:27:19 org.apache.catalina.core.StandardContext start
严重: Context startup failed due to previous errors
2021-2-3 18:27:19 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-7001
2021-2-3 18:27:19 org.apache.jk.common.ChannelSocket init
信息: JK2: ajp13 listening on /0.0.0.0:8009
2021-2-3 18:27:19 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/16  config=C:\apps\tomcat5.0\conf\jk2.properties
2021-2-3 18:27:19 org.apache.catalina.startup.Catalina start
信息: Server startup in 1993 ms