Log4j maven依賴配置

作項目的時候，常常須要給應用打印日誌，LOG4J是咱們的不二選擇，項目管理使用maven構建時，pom.xml配置以下html

<!--日誌 start-->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.25</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-log4j12</artifactId>
            <version>1.7.25</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.25</version>
            <scope>test</scope>
        </dependency>
        <!--日誌end-->

log4j.properties配置樣例以下java

### set log levels ### log4j.rootLogger=DEBUG ### direct log messages to stdout ### log4j.appender.A1=org.apache.log4j.ConsoleAppender log4j.appender.A1.Target=System.out log4j.appender.A1.layout=org.apache.log4j.PatternLayout log4j.appender.A1.layout.ConversionPattern=%-2p %m%n ### direct messages to file framework.log ### log4j.appender.A2=org.apache.log4j.DailyRollingFileAppender ##log4j.appender.A2.File=D:/logs/resmanm.log log4j.appender.A2.DatePattern='.'yyyy-MM-dd log4j.appender.A2.layout=org.apache.log4j.PatternLayout log4j.appender.A2.layout.ConversionPattern=%-5p(%10c{1}) %m%n ### application log config ### #log4j.logger.com.linkage=ERROR,A2 log4j.logger.com.ch1=DEBUG,A1,A2 ##log4j.logger.org.quartz.impl.StdSchedulerFactory=DEBUG,A1,A2

最後，附上一段定時器的demo，做爲日誌打印樣例。apache

package com.ch1; import org.quartz.*; import org.quartz.impl.StdSchedulerFactory; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.util.Date; import static org.quartz.DateBuilder.evenMinuteDate; public class SimpleExample { public void run () throws SchedulerException { Logger log = LoggerFactory.getLogger(SimpleExample.class); log.info("------- Initializing ----------------------"); SchedulerFactory sf = new StdSchedulerFactory(); Scheduler sched = sf.getScheduler(); log.info("------- Initialization Complete -----------"); // computer a time that is on the next round minute
       Date runTime = evenMinuteDate(new Date()); log.info("------- Scheduling Job  -------------------"); // define the job and tie it to our HelloJob class
       JobDetail job = JobBuilder.newJob(HelloJob.class) .withIdentity("job1","group1").build(); // Trigger the job to run on the next round minute
       Trigger trigger = TriggerBuilder.newTrigger().withIdentity("trigger1","group1") .startAt(runTime).build(); // Start up the scheduler (nothing can actually run until the // scheduler has been started)
 sched.start(); log.info("------- Started Scheduler -----------------"); // wait long enough so that the scheduler as an opportunity to // run the job!
       log.info("------- Waiting 65 seconds... -------------"); try { // wait 65 seconds to show job
           Thread.sleep(65L * 1000L); } catch (InterruptedException e) { e.printStackTrace(); } // shut down the scheduler
       log.info("------- Shutting Down ---------------------"); sched.shutdown(true); log.info("------- Shutdown Complete -----------------"); } public static void main(String[] args) throws SchedulerException { SimpleExample example = new SimpleExample(); example.run(); } }

開發工具使用的是Idea，日誌輸出：api

C:\Java\jdk1.8.0_144\bin\java "-javaagent:D:\Program Files\JetBrains\IntelliJ IDEA 2017.2.1\lib\idea_rt.jar=56553:D:\Program Files\JetBrains\IntelliJ IDEA 2017.2.1\bin" -Dfile.encoding=UTF-8 -classpath C:\Java\jdk1.8.0_144\jre\lib\charsets.jar;C:\Java\jdk1.8.0_144\jre\lib\deploy.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\access-bridge-64.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\cldrdata.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\dnsns.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\jaccess.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\jfxrt.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\localedata.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\nashorn.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\sunec.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\sunjce_provider.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\sunmscapi.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\sunpkcs11.jar;C:\Java\jdk1.8.0_144\jre\lib\ext\zipfs.jar;C:\Java\jdk1.8.0_144\jre\lib\javaws.jar;C:\Java\jdk1.8.0_144\jre\lib\jce.jar;C:\Java\jdk1.8.0_144\jre\lib\jfr.jar;C:\Java\jdk1.8.0_144\jre\lib\jfxswt.jar;C:\Java\jdk1.8.0_144\jre\lib\jsse.jar;C:\Java\jdk1.8.0_144\jre\lib\management-agent.jar;C:\Java\jdk1.8.0_144\jre\lib\plugin.jar;C:\Java\jdk1.8.0_144\jre\lib\resources.jar;C:\Java\jdk1.8.0_144\jre\lib\rt.jar;E:\cBSS微服務\demo\quartz_test\target\classes;C:\Users\yulei\.m2\repository\org\quartz-scheduler\quartz\2.2.3\quartz-2.2.3.jar;C:\Users\yulei\.m2\repository\c3p0\c3p0\0.9.1.1\c3p0-0.9.1.1.jar;C:\Users\yulei\.m2\repository\org\quartz-scheduler\quartz-jobs\2.2.3\quartz-jobs-2.2.3.jar;C:\Users\yulei\.m2\repository\log4j\log4j\1.2.17\log4j-1.2.17.jar;C:\Users\yulei\.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\yulei\.m2\repository\org\slf4j\slf4j-log4j12\1.7.25\slf4j-log4j12-1.7.25.jar com.ch1.SimpleExample log4j:WARN File option not set for appender [A2]. log4j:WARN Are you using FileAppender instead of ConsoleAppender? log4j:ERROR Either File or DatePattern options are not set for appender [A2]. log4j:ERROR No output stream or file set for the appender named [A2]. INFO ------- Initializing ---------------------- log4j:WARN No appenders could be found for logger (org.quartz.impl.StdSchedulerFactory). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
INFO ------- Initialization Complete ----------- INFO ------- Scheduling Job  ------------------- INFO ------- Started Scheduler ----------------- INFO ------- Waiting 65 seconds... ------------- INFO ------- Shutting Down --------------------- INFO ------- Shutdown Complete ----------------- Process finished with exit code 0