https://blog.csdn.net/qq_31352839/article/details/106887511
    https://blog.csdn.net/lwwl12/article/details/83109815

    fileName=”logs/info.log”
    1.startup.bat启动 会在 tomcat/bin/logs/目录下
    2.window 服务启动 会在 tomcat/logs/目录下
    3.linux启动会在 tomcat/bin/logs/目录下

    1. private String getLog4j2Path(){<br />        String path = MVCConfiguration.class.getProtectionDomain().getCodeSource().getLocation().getPath();<br />        String logpath = "";<br />        try {<br />            logger.info("path_MVCConfiguration.class.getProtectionDomain().getCodeSource().getLocation().getPath()：" + path);<br />            //tomcat运行(已服务运行/tomcat/logs，已startup.bat启动/tomcat/bin/logs)<br />            if (path.contains("tomcat")) {<br />                int tomcatEndIndex = path.indexOf("/",path.toLowerCase().lastIndexOf("tomcat"));<br />                //logger.info("tomcat-path：" + path.substring(1, tomcatEndIndex) + "/bin/logs/");<br />                logpath = path.substring(1, tomcatEndIndex) + "/bin/logs/";<br />            }<br />            //本地调试<br />            else if (path.contains("target")) {<br />                int targetIndex = path.indexOf("/target/");<br />                logpath = path.substring(1, targetIndex) + "/logs/";<br />            }<br />            //jar包运行 file:/F:/self/Source/baseframe/baseframe.jar!/BOOT-INF/classes!/<br />            else if (path.contains("!/BOOT-INF")) {<br />                int index = path.indexOf("!/BOOT-INF");<br />                logpath = new File(path.substring(6, index)).getParentFile().getPath() + "/logs/";<br />            }<br />            logger.info("path_logpath：" + logpath);<br />            return logpath;<br />        }<br />        catch(Exception e){<br />            e.printStackTrace();<br />            logger.error("path：" + path);<br />            logger.error("获取Log4j2Path路径出错：" + e.getMessage());<br />        }<br />        return "";<br />    }