JobHandler提供init/destroy方法，支持在JobHandler初始化和销毁时进行附加操作；

xxl-job-core/src/main/java/com/xxl/job/core/biz/impl/ExecutorBizImpl.java

         String removeOldReason = null;
 
         // valid：jobHandler + jobThread
-        if (GlueTypeEnum.BEAN==GlueTypeEnum.match(triggerParam.getGlueType())) {
+        GlueTypeEnum glueTypeEnum = GlueTypeEnum.match(triggerParam.getGlueType());
+        if (GlueTypeEnum.BEAN == glueTypeEnum) {
 
             // new jobhandler
             IJobHandler newJobHandler = XxlJobExecutor.loadJobHandler(triggerParam.getExecutorHandler());
                 }
             }
 
-        } else if (GlueTypeEnum.GLUE_GROOVY==GlueTypeEnum.match(triggerParam.getGlueType())) {
+        } else if (GlueTypeEnum.GLUE_GROOVY == glueTypeEnum) {
 
             // valid old jobThread
             if (jobThread != null &&
                     return new ReturnT<String>(ReturnT.FAIL_CODE, e.getMessage());
                 }
             }
-        } else if (GlueTypeEnum.GLUE_SHELL==GlueTypeEnum.match(triggerParam.getGlueType())
-                || GlueTypeEnum.GLUE_PYTHON==GlueTypeEnum.match(triggerParam.getGlueType())
-                || GlueTypeEnum.GLUE_NODEJS==GlueTypeEnum.match(triggerParam.getGlueType())) {
+        } else if (glueTypeEnum!=null && glueTypeEnum.isScript()) {
 
             // valid old jobThread
             if (jobThread != null &&

xxl-job-core/src/main/java/com/xxl/job/core/log/XxlJobLogger.java

      */
     private static void logDetail(StackTraceElement callInfo, String appendLog) {
 
-        // logFileName
-        String logFileName = XxlJobFileAppender.contextHolder.get();
-        if (logFileName==null || logFileName.trim().length()==0) {
-            return;
-        }
 
         /*// "yyyy-MM-dd HH:mm:ss [ClassName]-[MethodName]-[LineNumber]-[ThreadName] log";
         StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
         String formatAppendLog = stringBuffer.toString();
 
         // appendlog
-        XxlJobFileAppender.appendLog(logFileName, formatAppendLog);
-
-        logger.debug(">>>>>>>>>>> [{}]: {}", logFileName, formatAppendLog);
+        String logFileName = XxlJobFileAppender.contextHolder.get();
+        if (logFileName==null || logFileName.trim().length()==0) {
+            logger.info(">>>>>>>>>>> [{}]: {}", logFileName, formatAppendLog);
+        } else {
+            XxlJobFileAppender.appendLog(logFileName, formatAppendLog);
+            logger.debug(">>>>>>>>>>> [{}]: {}", logFileName, formatAppendLog);
+        }
     }
 
     /**

xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java

     @Override
 	public void run() {
 
+    	// init
+    	try {
+			handler.init();
+		} catch (Throwable e) {
+    		logger.error(e.getMessage(), e);
+		}
+
+		// execute
 		while(!toStop){
 			running = false;
 			idleTimes++;
 			}
 		}
 
+		// destroy
+		try {
+			handler.destroy();
+		} catch (Throwable e) {
+			logger.error(e.getMessage(), e);
+		}
+
 		logger.info(">>>>>>>>>>> xxl-job JobThread stoped, hashCode:{}", Thread.currentThread());
 	}
 }