2010.04.07(2)————Logger的步骤

2010.04.07(2)————Logger的步骤
1.log4j.xml

<?xml version="1.0" encoding="UTF-8"?>    
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">    
    <log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/'>
    <appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
        <param name="Target" value="System.out"/>
        <param name="Threshold" value="DEBUG"/>
        <layout class="org.apache.log4j.PatternLayout">
            <!-- The default pattern: Date Priority [Category] Message\n -->
            <param name="ConversionPattern" value="%d{yyyy/MM/dd HH:mm:ss.SSS} %-5p %C{1}\.%M\(\)\ \: %m%n"/>
        </layout>
    </appender>
    <logger additivity="false" name="com.huitu">
        <level value="DEBUG"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <logger additivity="false" name="org.apache">
        <level value="INFO"/>
        <appender-ref ref="CONSOLE"/>
    </logger>
    <root>
        <priority value="INFO"/>
        <appender-ref ref="CONSOLE"/>
    </root>
</log4j:configuration>

2.web.xml

<context-param>
  <param-name>log4jConfigLocation</param-name>
  <param-value>WEB-INF/classes/log4j.xml</param-value>
 </context-param>

3.java

public class UserDaoImp extends HibernateDaoSupport implements UserDao{
	private static Logger log = Logger.getLogger(UserDaoImp.class);
	public List<User> getAllUser(){
		String hql = "from User";
		log.info(hql);
		return (List<User>)this.getHibernateTemplate().find(hql);
	}
}