maven配置简单的log模块-超越昨天的自己系列(4)

超越昨天的自己系列(4)

用maven构建项目优点太多了,强烈建议项目初期构建使用maven。log模块是项目中必不可少的。一个个模块拼接起来,慢慢学习更方便的构建一个完整,牛逼的项目。

 
通过这样的命令,会自动创建一个项目:
 
mvn archetype:create -DgroupId=com.oreilly -DartifactId=my-app
 
产生类似这样一个项目目录:
 
 
 
推荐: pom.xml写依赖的时候可以通过下面这个网站来查询:
 
pom.xml的配置如下:
 
<project xmlns ="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation= "http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0 </modelVersion>

  <groupId>com.kkk.wap </groupId>
  <artifactId>testapp</artifactId>
  <version>1.0-SNAPSHOT </version>
  <packaging>jar </packaging>

  <name>testapp</name>
  <url>http://maven.apache.org </url>

  <properties>
    <project.build.sourceEncoding> UTF-8</project.build.sourceEncoding>
  </properties>

  <dependencies>
      <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
           <version>1.0.13</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
</project>

在项目根目录执行:mvn install 命令  

会下载一下jar包:

 

测试类:
 
/**
 * Hello world!
 *
 */
public class App {
   
    private static Logger       logger = LoggerFactory .getLogger ( App. class );
    public static void main ( String [] args ){
        logger .info ( "App said:show me the money!") ;
        System .out . println( "Hello World!" ) ;
        logger .info ( "you said:yo!yo!") ;
        try {
            String s = "12w" ;
            Integer .parseInt ( s) ;
        } catch (Exception e) {
            logger .error ( "you have a big poblem:" + e ) ;
        }

    }
}

 

logback.xml的配置:
<? xml version ="1.0" encoding= "UTF-8" ?>
<!-- Logback Configuration.  -->
<configuration debug = "false">
    <appender name ="AllLOG" class ="ch.qos.logback.core.rolling.RollingFileAppender" >
        <file> d:/allLog.log</file>
        <encoding> UTF-8</encoding>
           <rollingPolicy class ="ch.qos.logback.core.rolling.TimeBasedRollingPolicy" >
                <FileNamePattern> d:/allLog.%d{yyyy-MM- dd}.log </FileNamePattern>
           </rollingPolicy>
           <append> true</append>
           <layout class ="ch.qos.logback.classic.PatternLayout" >
            <pattern> <![CDATA[
%n%-4r [%d{yyyy-MM-dd HH:mm:ss} %X{productionMode}] - %X{method} %X{requestURIWithQueryString} [ip=%X{remoteAddr}, ref=%X{referrer}, ua=%X{userAgent}, sid=%X{cookie.JSESSIONID}]%n  %-5level %logger{35} - %m%n
            ]]> </pattern>
        </layout>
    </appender>

    <root>
        <level value = "info" />
        <appender-ref ref = "AllLOG" />
    </root>
</configuration>
 
解释一下:日志打在d盘的allLog文件夹下,每一天打完日志他会修改自己名字为d:/allLog.%d{yyyy-MM- dd}.log 这样的格式。注意正在打的日志是在allLog.log里。
 
关于logback.xml配置可以参考博文:
 
 
 
log输出结果:
 
419  [2013-06-07 16:02:22 ] -   [ip=, ref=, ua=, sid=]
  INFO  com.kkk.wap.App - App said:show me the money!

434  [2013-06-07 16:02:22 ] -   [ip=, ref=, ua=, sid=]
  INFO  com.kkk.wap.App - you said:yo!yo!

435  [2013-06-07 16:02:22 ] -   [ip=, ref=, ua=, sid=]
  ERROR com.kkk.wap.App - you have a big poblem:java.lang.NumberFormatException: For input string: "12w"

 

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