一個完整的xml配置文件(propertities文件功能不全,不能使用過濾器,並且個人認爲xml格式比較清晰,易讀)。
附帶測試程序。
- import java.net.URL;
- import org.apache.log4j.xml.DOMConfigurator;
- /**
- * 單實例 讀取log4j配置文件,初始化log4j
- *
- */
- public class Log4jXMLConfig
- {
- private static Log4jXMLConfig instance;
- public static synchronized Log4jXMLConfig initia()
- {
- if (instance == null)
- {
- return new Log4jXMLConfig();
- }
- return instance;
- }
- private Log4jXMLConfig()
- {
- final URL url = Log4jXMLConfig.class.getResource("log4j.xml");
- DOMConfigurator.configure(url);
- }
- }
import java.net.URL;import org.apache.log4j.xml.DOMConfigurator;/** * 單實例 讀取log4j配置文件,初始化log4j * */public class Log4jXMLConfig{ private static Log4jXMLConfig instance; public static synchronized Log4jXMLConfig initia() { if (instance == null) { return new Log4jXMLConfig(); } return instance; } private Log4jXMLConfig() { final URL url = Log4jXMLConfig.class.getResource("log4j.xml"); DOMConfigurator.configure(url); }}
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
- <log4j:configuration>
- <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern"
- value="%d - %c -%-4r [%t] %-5p %x - %m%n" />
- </layout>
- <!--限制輸出級別-->
- <filter class="org.apache.log4j.varia.LevelRangeFilter">
- <param name="LevelMax" value="ERROR"/>
- <param name="LevelMin" value="TRACE"/>
- </filter>
- </appender>
- <appender name="FILE" class="org.apache.log4j.FileAppender">
- <param name="File" value="C:/log4j1.log"/>
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern"
- value="%d - %c -%-4r [%t] %-5p %x - %m%n" />
- </layout>
- </appender>
- <appender name="DATABASE" class="org.apache.log4j.jdbc.JDBCAppender">
- <param name="URL" value="jdbc:oracle:thin:@192.168.0.59:1521:oanet"/>
- <param name="driver" value="oracle.jdbc.driver.OracleDriver"/>
- <param name="user" value="hdczoa"/>
- <param name="password" value="system"/>
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern"
- value="INSERT INTO hdczoa.LOG4J(stamp,thread, info_level,class,message) VALUES ('%d', '%t', '%p', '%c', %m)" />
- </layout>
- </appender>
- <!-- 發郵件(只有ERROR時纔會發送!) -->
- <appender name="MAIL"
- class="org.apache.log4j.net.SMTPAppender">
- <param name="threshold" value="debug" />
- <!-- 日誌的錯誤級別
- <param name="threshold" value="fatal"/>
- -->
- <!-- 緩存文件大小,日誌達到512K時發送Email -->
- <param name="BufferSize" value="512" /><!-- 單位K -->
- <param name="From" value="[email protected]" />
- <param name="SMTPHost" value="smtp.163.com" />
- <param name="Subject" value="juyee-log4jMessage" />
- <param name="To" value="[email protected]" />
- <param name="SMTPUsername" value="test" />
- <param name="SMTPPassword" value="test" />
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern"
- value="%-d{yyyy-MM-dd HH:mm:ss.SSS} [%p]-[%c] %m%n" />
- </layout>
- </appender>
- <appender name="ASYNC" class="org.apache.log4j.AsyncAppender">
- <param name="BufferSize" value="256" />
- <appender-ref ref="DATABASE" />
- </appender>
- <!--通過<logger></logger>的定義可以將各個包中的類日誌輸出到不同的日誌文件中-->
- <logger name="com.litt2.log4j" additivity="false">
- <level value="WARN" />
- <appender-ref ref="CONSOLE" />
- </logger>
- <!--通過<category></category>的定義可以將各個包中的類日誌輸出到不同的日誌文件中-->
- <category name="com.litt3">
- <level value="DEBUG" />
- <appender-ref ref="CONSOLE" />
- <appender-ref ref="MAIL" />
- </category>
- <root>
- <priority value="debug" />
- <appender-ref ref="CONSOLE" />
- <appender-ref ref="FILE" />
- </root>
- </log4j:configuration>
<span style="font-family: Verdana, Arial, Helvetica, sans-serif;">另外一個配置文件:</span>
- <?xml version="1.0" encoding="UTF-8" ?>
- <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
- <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
- <!-- ========================== 自定義輸出格式說明================================ -->
- <!-- %p 輸出優先級,即DEBUG,INFO,WARN,ERROR,FATAL -->
- <!-- #%r 輸出自應用啓動到輸出該log信息耗費的毫秒數 -->
- <!-- #%c 輸出所屬的類目,通常就是所在類的全名 -->
- <!-- #%t 輸出產生該日誌事件的線程名 -->
- <!-- #%n 輸出一個回車換行符,Windows平臺爲“\r\n”,Unix平臺爲“\n” -->
- <!-- #%d 輸出日誌時間點的日期或時間,默認格式爲ISO8601,也可以在其後指定格式,比如:%d{yyy MMM dd HH:mm:ss,SSS},輸出類似:2002年10月18日 22:10:28,921 -->
- <!-- #%l 輸出日誌事件的發生位置,包括類目名、發生的線程,以及在代碼中的行數。舉例:Testlog4.main(TestLog4.java:10) -->
- <!-- ========================================================================== -->
- <!-- ========================== 輸出方式說明================================ -->
- <!-- Log4j提供的appender有以下幾種: -->
- <!-- org.apache.log4j.ConsoleAppender(控制檯), -->
- <!-- org.apache.log4j.FileAppender(文件), -->
- <!-- org.apache.log4j.DailyRollingFileAppender(每天產生一個日誌文件), -->
- <!-- org.apache.log4j.RollingFileAppender(文件大小到達指定尺寸的時候產生一個新的文件), -->
- <!-- org.apache.log4j.WriterAppender(將日誌信息以流格式發送到任意指定的地方) -->
- <!-- ========================================================================== -->
- <!-- 輸出到日誌文件 -->
- <appender name="filelog_appender"
- class="org.apache.log4j.RollingFileAppender">
- <!-- 設置File參數:日誌輸出文件名 -->
- <param name="File" value="log/testlog4jxml_all.log" />
- <!-- 設置是否在重新啓動服務時,在原有日誌的基礎添加新日誌 -->
- <param name="Append" value="true" />
- <!-- 設置文件大小 -->
- <param name="MaxFileSize" value="1MB" />
- <!-- 設置文件備份 -->
- <param name="MaxBackupIndex" value="10000" />
- <!-- 設置輸出文件項目和格式 -->
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p (%c:%L)- %m%n" />
- </layout>
- </appender>
- <!-- 輸出到日誌文件 每天一個日誌 -->
- <appender name="filelog_daily" class="org.apache.log4j.DailyRollingFileAppender">
- <param name="File" value="log/daily.log" />
- <param name="DatePattern" value="'daily.'yyyy-MM-dd'.log'" />
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern" value="[%d{yyyy-MM-dd HH:mm:ss\} %-5p] [%t] (%c:%L) - %m%n" />
- </layout>
- </appender>
- <!-- 輸出到控制檯中 -->
- <appender name="console" class="org.apache.log4j.ConsoleAppender">
- <layout class="org.apache.log4j.PatternLayout">
- <param name="ConversionPattern"
- value="%d{yyyy-MM-dd HH:mm:ss} %-5p: %m%n" />
- <!-- "%-5p: [%t] [%c{3}.%M(%L)] | %m%n" -->
- </layout>
- </appender>
- <appender name="EMAIL_QQ" class="org.apache.log4j.net.SMTPAppender">
- <param name="Threshold" value="INFO"/>
- <param name="BufferSize" value="128" />
- <param name="SMTPHost" value="smtp.qq.com" />
- <param name="SMTPUsername" value="cjjvictory" />
- <param name="SMTPPassword" value="***" />
- <param name="From" value="[email protected]" />
- <param name="To" value="[email protected]" />
- <param name="Subject" value="測試郵件發送" />
- <param name="LocationInfo" value="true" />
- <param name="SMTPDebug" value="true" />
- <layout class="org.cjj.log4j.extend.PatternLayout_zh">
- <param name="ConversionPattern" value="[%d{ISO8601}] %-5p %c %m%n"/>
- </layout>
- </appender>
- <!--- 異步測試,當日志達到緩存區大小時候執行所包的appender -->
- <appender name="ASYNC_test" class="org.apache.log4j.AsyncAppender">
- <param name="BufferSize" value="10"/>
- <appender-ref ref="EMAIL_QQ"/>
- </appender>
- <!-- 設置包限制輸出的通道 -->
- <category name="org.cjj" additivity="false">
- <!-- 日誌輸出級別,起碼可以有5個級別,可以擴展自己的級別,郵件發送必須是ERROR級別不好用,所以最後自己擴展一個郵件發送級別 -->
- <level value="ERROR" />
- <appender-ref ref="filelog_daily" />
- <appender-ref ref="daily_appender" />
- <appender-ref ref="console" />
- <appender-ref ref="ASYNC_test" />
- </category>
-
</log4j:configuration>
Web配置log4j,需求增加以下內容到WEB-INF/web.xml
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>smilecargo.root</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.xml</param-value>
</context-param>
<context-param>
<param-name>log4jRefreshInterval</param-name>
<param-value>60000</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>