Log组件支持输出异常栈信息，底层实现优化

doc/XXL-JOB官方文档.md

 - 10、执行器端口支持随机生成(小于等于0时)，避免端口定义冲突；
 - 11、任务Cron长度扩展支持至128位；
 - 12、调度报表优化，支持时间区间筛选；
-- 13、Log组件支持输出异常栈信息；
+- 13、Log组件支持输出异常栈信息，底层实现优化；
 
 ### TODO LIST
 - 1、任务权限管理：执行器为粒度分配权限，核心操作校验权限；

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

     /**
      * append log
      *
+     * @param callInfo
      * @param appendLog
      */
-    public static void log(String appendLog) {
+    private static void logDetail(StackTraceElement callInfo, String appendLog) {
 
         // logFileName
         String logFileName = XxlJobFileAppender.contextHolder.get();
             return;
         }
 
-        // "yyyy-MM-dd HH:mm:ss [ClassName]-[MethodName]-[LineNumber]-[ThreadName] log";
+        /*// "yyyy-MM-dd HH:mm:ss [ClassName]-[MethodName]-[LineNumber]-[ThreadName] log";
         StackTraceElement[] stackTraceElements = new Throwable().getStackTrace();
-        StackTraceElement callInfo = stackTraceElements[1];
+        StackTraceElement callInfo = stackTraceElements[1];*/
 
         StringBuffer stringBuffer = new StringBuffer();
         stringBuffer.append(xxlJobLoggerFormat.format(new Date())).append(" ")
      * @param appendLogArguments    like "111, true"
      */
     public static void log(String appendLogPattern, Object ... appendLogArguments) {
-        String appendLog = MessageFormat.format(appendLogPattern, appendLogArguments);
-        log(appendLog);
+
+        String appendLog = appendLogPattern;
+        if (appendLogArguments!=null && appendLogArguments.length>0) {
+            appendLog = MessageFormat.format(appendLogPattern, appendLogArguments);
+        }
+
+        StackTraceElement callInfo = new Throwable().getStackTrace()[1];
+        logDetail(callInfo, appendLog);
     }
 
     /**
      * @param e
      */
     public static void log(Throwable e) {
+
         StringWriter stringWriter = new StringWriter();
         e.printStackTrace(new PrintWriter(stringWriter));
         String appendLog = stringWriter.toString();
-        log(appendLog);
+
+        StackTraceElement callInfo = new Throwable().getStackTrace()[1];
+        logDetail(callInfo, appendLog);
     }
 
 }