SSH series: (2) Log record slf4j+log4j

(1) Add jar Package

(2) configuration

(3) test

1. Introduction of JAR Package

Set up the user Library, named slf4j

Jar packages that must be added Log4j-1.2.17.jar Slf4j-api-1.7.21.jar Slf4j-log4j12-1.7.21.jar

Optional jar package (can be displayed in different colors for the console input log) Color-loggers-1.0.4.1.jar Note: you need to use the plug-in for Eclipse (ANSI Escape in Console)

Later needs to add the jar package (currently does not introduce this jar package, to the late error when the introduction) Jcl-over-slf4j-1.7.21.jar Note: The spring framework is used later, and spring uses the Commons logging jar package by default. In this project, using SLF4J instead of comons loggging, this jar package plays a very important role; If you use spring, you will get an error if you do not introduce this jar package.

2. Configuration

In the SRC directory, add the Log4j.properties file

First case: If not joined Color-loggers-1.0.4.1.jar

Log4j.rootlogger=info, console, file log4j.appender.console= org.apache.log4j.consoleappenderlog4j.appender.console.layout= org.apache.log4j.patternlayoutlog4j.appender.console.layout.conversionpattern=%d%p%c.%M ()-%m%n log4j.appender.file=org.apache.log4j.rollingfileappenderlog4j.appender.file.file=./logs/ mylog.loglog4j.appender.file.maxfilesize=5kblog4j.appender.file.maxbackupindex=100log4j.appender.file.layout= org.apache.log4j.patternlayoutlog4j.appender.file.layout.conversionpattern=%d%p%c.%M ()-%m%n

Second case: If you join Color-loggers-1.0.4.1.jar Note: Use with the ANSI Escape in console plugin is valid

Log4j.rootlogger=debug, console, file log4j.appender.console= com.colorlog.log4j.ansicolorconsoleappenderlog4j.appender.console.layout= org.apache.log4j.enhancedpatternlayoutlog4j.appender.console.layout.conversionpattern=%d%p%c.%M ()-%m% nlog4j.appender.console.fatalcolour={esc}[1;35mlog4j.appender.console.errorcolour={esc}[0; 31mlog4j.appender.console.warncolour ={esc}[0;33mlog4j.appender.console.infocolour ={esc}[0;  30mlog4j.appender.console.debugcolour={esc}[0;32mlog4j.appender.console.tracecolour={esc}[1;30m log4j.appender.file=org.apache.log4j.rollingfileappenderlog4j.appender.file.file=./logs/ mylog.loglog4j.appender.file.maxfilesize=5kblog4j.appender.file.maxbackupindex=100log4j.appender.file.layout= org.apache.log4j.patternlayoutlog4j.appender.file.layout.conversionpattern=%d%p%c.%M ()-%m%n

3. Testing

Package Com.rk.test.log;import Org.junit.test;import Org.slf4j.logger;import Org.slf4j.loggerfactory;public class HelloWorld {@Testpublic void Test () {Logger Logger = Loggerfactory.getlogger (Helloworld.class); Logger.debug ("Debug"); Logger.info ("info"); Logger.warn ("warn"); Logger.error ("Error");}}

Output

650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M01/85/74/wKioL1ekBk_zHIVFAABLJ-n6NFs926.png "title=" Colorful_slf4j_log.png "alt=" Wkiol1ekbk_zhivfaablj-n6nfs926.png "/>

SSH series: (2) Log record slf4j+log4j