Tomcat8下使用Log4j接管生成日志文件，按天存放，日志转换成json格式 亲测可用，日志格式如下： {"time":"2017-09-06 10:24:48,356","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deploying web application directory C:\Users\admin\Desktop\Tomcat8\webapps\docs"} {"time":"2017-09-06 10:24:48,375","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deployment of web application directory C:\Users\admin\Desktop\Tomcat8\webapps\docs has finished in 19 ms"} {"time":"2017-09-06 10:24:48,376","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deploying web application directory C:\Users\admin\Desktop\Tomcat8\webapps\examples"} {"time":"2017-09-06 10:24:48,648","logtype":"INFO","loginfo":"org.apache.catalina.core.ContainerBase.[Catalina].[bms-res.hzfh.com].[/examples]:ContextListener: contextInitialized()"} {"time":"2017-09-06 10:24:48,649","logtype":"INFO","loginfo":"org.apache.catalina.core.ContainerBase.[Catalina].[bms-res.hzfh.com].[/examples]:SessionListener: contextInitialized()"} {"time":"2017-09-06 10:24:48,654","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deployment of web application directory C:\Users\admin\Desktop\Tomcat8\webapps\examples has finished in 279 ms"} {"time":"2017-09-06 10:24:48,654","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deploying web application directory C:\Users\admin\Desktop\Tomcat8\webapps\host-manager"} {"time":"2017-09-06 10:24:48,682","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deployment of web application directory C:\Users\admin\Desktop\Tomcat8\webapps\host-manager has finished in 28 ms"} {"time":"2017-09-06 10:24:48,682","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deploying web application directory C:\Users\admin\Desktop\Tomcat8\webapps\manager"} {"time":"2017-09-06 10:24:48,711","logtype":"INFO","loginfo":"org.apache.catalina.startup.HostConfig:Deployment of web application directory C:\Users\admin\Desktop\Tomcat8\webapps\manager has f