在src目录下增加 

log4j.properties：

log4j.appender.logFile=org.apache.log4j.FileAppenderlog4j.appender.logFile.Threshold=DEBUG log4j.appender.logFile.ImmediateFlush=truelog4j.appender.logFile.Append=truelog4j.appender.logFile.File=F:/Workspaces/logs/log.log4jlog4j.appender.logFile.layout=org.apache.log4j.PatternLayoutlog4j.appender.logFile.layout.ConversionPattern=[%-5p] %d(%r) --> [%t] %l\: %m %x %n

包 Acton

Action.java:

package Action;public interface Action {           public String execute(String str);}

LowerAction.java:

package Action;public class LowerAction implements Action {	private String message;	public String getMessage() {		return message;	}	public void setMessage(String string) {		message = string;	}	public String execute(String str) {		return (getMessage() + str).toLowerCase();	}}

UpperAction.java:

package Action;public class UpperAction implements Action {	private String message;	public String getMessage() {		return message;	}	public void setMessage(String string) {		message = string;	}	public String execute(String str) {		return ((getMessage() + str).toUpperCase());	}}

Test.java:

package Action;import org.apache.commons.logging.Log;import org.apache.commons.logging.LogFactory;import org.springframework.beans.factory.BeanFactory;import org.springframework.beans.factory.xml.XmlBeanFactory;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import org.springframework.core.io.ClassPathResource;import org.springframework.core.io.Resource;public class Test {	public static Log log = LogFactory.getLog("Test");	public static void main(String Args[]) {		log.info("Start...");		// String[] locations = { "beans.xml" };		/*ApplicationContext ctx = new ClassPathXmlApplicationContext("beans.xml");		Action action = (Action) ctx.getBean("beanID");		System.out.println(action.execute("  Joson"));*/		Resource resource=new ClassPathResource("beans.xml");		@SuppressWarnings("deprecation")		BeanFactory factory=new XmlBeanFactory(resource);		Action action=(Action)factory.getBean("beanID");		System.out.println(action.execute("  The new future"));		log.info("End...");	}}

beans.xml:

<?xml version="1.0" encoding="UTF-8" ?><beans xmlns="http://www.springframework.org/schema/beans"	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"	xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">	<description>Spring Quick Start</description>	<bean id="beanID" class="Action.LowerAction">		<property name="message" value="http://www.mamicode.com/hello"/>		</bean></beans>

然后加载Spring和log4j相应的jar包

log4j配置