miyachi-yの日記： Maven2 and Logging

Maven2でLogging(Commons Logging)を利用する方法。

• Projectの構造

  example01
  |-- pom.xml
  `-- src
      |-- main
      |   |-- java
      |   |   `-- example01
      |   |       |-- App.java
      |   |       `-- Hello.java
      |   `-- resources
      `-- test
          |-- java
          |   `-- example01
          |       |-- AppTest.java
          |       `-- HelloTest.java
          `-- resources
              |-- commons-logging.properties
              `-- simplelog.properties

• pom.xml

    <dependencies>
      ...
      <dependency>
        <groupId>commons-logging</groupId>
        <artifactId>commons-logging</artifactId>
        <version>1.0.4</version>
      </dependency>
      ...
    </dependencies>
    ...
  　<build>
      <plugins>
       <!-- Junitのlog出力を表示させるため。 -->
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
            <useFile>false</useFile>
         </configuration>
       </plugin>
     </plugins>
    </build>
    ...

• commons-logging.properties

  org.apache.commons.logging.Log = org.apache.commons.logging.impl.SimpleLog

• simplelog.properties

  org.apache.commons.logging.simplelog.defaultlog = trace
  #org.apache.commons.logging.simplelog.log.xxxxx = trace
  org.apache.commons.logging.simplelog.showlogname = true
  #org.apache.commons.logging.simplelog.showShortLogname =
  org.apache.commons.logging.simplelog.showdatetime = true
  #org.apache.commons.logging.simplelog.dateTimeFormat =

• HelloTest.java

  package example01;
  
  import junit.framework.*;
  
  import org.apache.commons.logging.*;
  
  public class HelloTest extends TestCase
  {
      private static final Log log = LogFactory.getLog(HelloTest.class);
  
      public void testGreeting()
      {
          log.trace("testGreeting()");
  
          Hello hello = new Hello();
          hello.setGreeting("hello world.");
  
          assertEquals("hello world.", hello.getGreeting());
      }
  }