java Log4j封装，程序任何位置调用

一般写log4j，每个类都会定义一个logger

明显这样太麻烦了，

然后封装了一下，明显好用多了。

 package tools;

 import java.io.IOException;

 import java.io.InputStream;

 import java.util.Properties;

 import org.apache.log4j.Level;

 import org.apache.log4j.Logger;

 public class LogUtil {

     private static final String LOG4J_PROPERITES_PATH = "log4j.properties";

     public static void debug(Object str_debug) {

         StackTraceElement stack[] = (new Throwable()).getStackTrace();

         Logger logger = Logger.getLogger(stack[1].getClassName());

         logger.log(LogUtil.class.getName(), Level.DEBUG, str_debug, null);

         //logger.debug(str_debug);

     }

     public static void info(Object str_info) {

         StackTraceElement stack[] = (new Throwable()).getStackTrace();

         Logger logger = Logger.getLogger(stack[1].getClassName());

         logger.log(LogUtil.class.getName(), Level.INFO, str_info, null);

         //logger.info(str_info);

     }

     public static void error(Object str_err) {

         StackTraceElement stack[] = (new Throwable()).getStackTrace();

         Logger logger = Logger.getLogger(stack[1].getClassName());

         logger.log(LogUtil.class.getName(), Level.ERROR, str_err, null);

         //logger.error(str_err);

     }

     @SuppressWarnings("unused")

     private static void logClean(String... clean_types) {

         if (clean_types.length == 0) {

             return ;

         }

         InputStream in = ClassLoader.getSystemResourceAsStream(LOG4J_PROPERITES_PATH);

         Properties p = new Properties();

         try {

             p.load(in);

         } catch (IOException e) {

             error("Properties 加载错误");

         }

         for (int i = 0; i < clean_types.length; i++) {

             String clean_type = clean_types[i];

             String file_path = null;

             switch(clean_type) {

             case "debug" :

                 file_path = p.getProperty("log4j.appender.D.File");

                 break;

             case "info" :

                 file_path = p.getProperty("log4j.appender.info.File");

                 break;

             case "error" :

                 file_path = p.getProperty("log4j.appender.E.File");

                 break;

             }

             FileUtil.deleteEveryThing(file_path);

         }

     }

     public static void main(String[] args) {

         //logClean("debug", "info", "error");

     }

 }