log4j 配置文件中设置相对路径
来源：互联网 发布：php pdo和mysqli 编辑：程序博客网 时间：2024/06/04 19:24
/** * 该类用于对log4j相对路径进行处理，包括日志的properties文件和日志输出文件相对路径的设置 关联：log4j.properties * web.xml中的Log4jInit * * @author wxq * */public class Log4jInit extends HttpServlet {/** * 容器启动时调用该方法 */@Overridepublic void init() throws ServletException {// 获取应用的根路径String rootPath = getServletContext().getRealPath("/");// 设置jvm系统的系统属性，相当于静态变量；用于properties文件中设置日志输出文件的路径// 通过${log.path}可获取该值System.setProperty("log.path", rootPath);String file = getInitParameter("Log4jConfigLocation");if (file != null && (!file.trim().equals(""))) {// 读取日志配置文件PropertyConfigurator.configure(rootPath + file);}System.out.println("init");}log4j.rootLogger=DEBUG,stdout,logfilelog4j.appender.stdout=org.apache.log4j.ConsoleAppenderlog4j.appender.stdout.layout=org.apache.log4j.PatternLayoutlog4j.appender.stdout.layout.ConversionPattern=%d %p[%C.%M(%L)]-%m%nlog4j.appender.logfile=org.apache.log4j.RollingFileAppenderlog4j.appender.logfile.File=${log.path}/logs/system.loglog4j.appender.logfile.Append=truelog4j.appender.logfile.MaxFileSize=1024KBlog4j.appender.logfile.MaxBackupIndex=5log4j.appender.logfile.layout=org.apache.log4j.PatternLayoutlog4j.appender.logfile.layout.ConversionPattern=%d %p [%C.%M(%L)]-%m%n
<servlet> <servlet-name>Log4j</servlet-name> <servlet-class>comm.log.Log4jInit</servlet-class> <init-param> <param-name>Log4jConfigLocation</param-name> <param-value>WEB-INF/classes/log4j.properties</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet>
