xml方式配置log4j

public void init() throws ServletException {//WEB-INFO/palog4j.xml//org.w3c.dom.DocumentElement root = getConfigure("palog4j.xml").getDocumentElement();// 初始化log4jconfigLog4j(root);} Document getConfigure(String configFile) {InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("palog4j.xml");DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();DocumentBuilder builder = null;try {builder = factory.newDocumentBuilder();} catch (ParserConfigurationException e) {System.out.println("ERROR -*- occur error building xml document");e.printStackTrace();}Document document = null;try {document = builder.parse(inputStream);} catch (SAXException e) {System.out.println("ERROR -*- a SAX error occurs when reading configure file");e.printStackTrace();} catch (IOException e) {System.out.println("ERROR -*- an I/O error occurs when reading configure file error");e.printStackTrace();}System.out.println("OK! -*- succeed read configure file");return document;} void configLog4j(Element rootElement) {Element log4jEle = (Element) rootElement.getElementsByTagName("log4j:configuration").item(0);DOMConfigurator.configure(log4jEle);logger.info("DRF==OK -*- succeed config log4j");}

 

<log4j><!--log4j日志配置信息--><log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'><appender name="STDOUT" class="org.apache.log4j.ConsoleAppender"><layout class="org.apache.log4j.PatternLayout"><param name="ConversionPattern"value="%d{yyyy-MM-dd HH:mm:ss} %-5p [%t] %C{2} (%F:%L) - %m%n" /></layout></appender><appender name="A1" class="org.apache.log4j.RollingFileAppender"><param name="File" value="c://position.log" /><param name="Append" value="true" /><param name="MaxFileSize" value="1MB" /><param name="MaxBackupIndex" value="1" /><layout class="org.apache.log4j.PatternLayout"><param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p [%t] %C{2} - %m%n" /></layout></appender><appender name="A2" class="org.apache.log4j.DailyRollingFileAppender"><param name="File" value="c://position.log" /><param name="DatePattern" value="'.'yyyy-MM-dd" /><layout class="org.apache.log4j.PatternLayout"><param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p [%t] %C{2} - %m%n" /></layout></appender><root><priority value="INFO" /><appender-ref ref="A2" /><appender-ref ref="STDOUT" /></root></log4j:configuration></log4j>