Spring集成Log4j(亲测可行，没有成功的可以一试)

        最近项目里集成log4j ，在网上找了老长时间，按照配置来基本上没有成功的。最后终于成功了亲测可行。

    最简单的方法：在web.xml文件里面加

        <context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>classpath:log4j.properties</param-value>
</context-param>
<context-param>
<param-name>log4jRefreshInterval</param-name>
<param-value>3000</param-value>
</context-param>

<listener>
<listener-class>
org.springframework.web.util.Log4jConfigListener
</listener-class>
</listener>

下面的步骤做研究参考：

1.在web.xml文件里加上

         <!-- log4j 配置 -->
     <servlet>
      <description></description>
      <display-name>InitLog4J</display-name>
      <servlet-name>InitLog4J</servlet-name>
      <servlet-class>servlet.InitLog4J</servlet-class>
      <init-param> 
          <param-name>log4j</param-name> 
          <param-value>WEB-INF/classes/log4j.properties</param-value> 
       </init-param>
     <load-on-startup>3</load-on-startup>
     </servlet>
     
       <servlet-mapping>
   <servlet-name>InitLog4J</servlet-name>
   <url-pattern>/InitLog4J</url-pattern>
    </servlet-mapping>

2.增加新类InitLog4J

import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;


import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;


import org.apache.log4j.PropertyConfigurator;

public class InitLog4J extends HttpServlet{



/**
* 
*/
private static final long serialVersionUID = 6053683294472684582L;


public void init(ServletConfig config) throws ServletException {
 super.init();
 String prefix = config.getServletContext().getRealPath("/");
 String file = config.getInitParameter("log4j");
 String filePath = prefix + file;
 Properties props = new Properties();
 try {
  FileInputStream istream = new FileInputStream(filePath);
  props.load(istream);
  istream.close();
  String logFile = prefix
    + props.getProperty("log4j.appender.logfile.File");// 设置路径，对应配置文件中的名称
  props.setProperty("log4j.appender.logfile.File", logFile);
  // 装入log4j配置信息
  PropertyConfigurator.configure(props);
 } catch (IOException e) {
  System.out.println("Could not read configuration file [" + filePath
    + "].");
  System.out.println("Ignoring configuration file [" + filePath
    + "].");
  return;
 }
}
}

3.添加WEB-INF/classes/log4j.properties文件(里面的关于Log4j的详细的配置信息不再说明)

#--------------------------------   
#  
log4j.rootLogger=DEBUG, stdout, fileout  
#log4j.logger.test=info  
#log4j.logger.org.apache.jasper = DEBUG  
#log4j.logger.org.apache.catalina.startup.TldConfig = DEBUG  
#log4j.logger.org.apache.catalina.session.ManagerBase = DEBUG  
  
log4j.logger.com.fiscal = DEBUG  
log4j.logger.com.system = DEBUG  
  
log4j.logger.com.ibatis = DEBUG  
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = DEBUG  
log4j.logger.com.ibatis.common.jdbc.ScriptRunner = DEBUG  
log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = DEBUG  
log4j.logger.java.sql.Connection = DEBUG  
#log4j.logger.java.sql.Statement = DEBUG  
#log4j.logger.java.sql.PreparedStatement = DEBUG  
log4j.logger.java.sql.ResultSet = DEBUG  
  
log4j.appender.stdout=org.apache.log4j.ConsoleAppender   
  
log4j.appender.fileout=org.apache.log4j.RollingFileAppender  
log4j.appender.fileout.File=C\:\\ibatis.log   
log4j.appender.fileout.MaxFileSize=10000KB   
  
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout   
log4j.appender.stdout.layout.ConversionPattern=[%-5p] %d{yyyy-MM-dd HH\:mm\:ss} \:%m%n   
log4j.appender.fileout.layout=org.apache.log4j.PatternLayout   
log4j.appender.fileout.layout.ConversionPattern=[%-5p]_%d{yyyy-MM-dd HH\:mm\:ss} \:%m%n  
  
#log4j.appender.stdout.layout=org.apache.log4j.SimpleLayout   
  
# log4j.logger.org=info  
#--------------------------------   

4.重启服务器，搞定