OpenDeclarationStackTraceElement[]java.lang.Throwable.getStackTrace()
ProvidesprogrammaticaccesstothestacktraceinformationprintedbyprintStackTrace().Returnsanarrayofstacktraceelements,eachrepresentingonestackframe.Thezerothelementofthearray(assumingthearray'slengthisnon-zero)representsthetopofthestack,whichisthelastmethodinvocationinthesequence.Typically,thisisthepointatwhichthisthrowablewascreatedandthrown.Thelastelementofthearray(assumingthearray'slengthisnon-zero)representsthebottomofthestack,whichisthefirstmethodinvocationinthesequence.
Somevirtualmachinesmay,undersomecircumstances,omitoneormorestackframesfromthestacktrace.Intheextremecase,avirtualmachinethathasnostacktraceinformationconcerningthisthrowableispermittedtoreturnazero-lengtharrayfromthismethod.Generallyspeaking,thearrayreturnedbythismethodwillcontainoneelementforeveryframethatwouldbeprintedbyprintStackTrace.Writestothereturnedarraydonotaffectfuturecallstothismethod.
Returns:
anarrayofstacktraceelementsrepresentingthestacktracepertainingtothisthrowable.
Since:
1.4

package com.doctor.reflect;
import java.io.PrintWriter;
import java.io.StringWriter;
/**
 * Call stack introspection
 * 
 * @author sdcuike
 *
 *     Created At 2016年8月29日 下午9:40:35
 */
public class CallStackIntrospectionDemo {
 private static final MyLogger logger = new LoggerImpl();
 public static void main(String[] args) {
  logger.logRecord("hello");
  IllegalArgumentException exception = new IllegalArgumentException("IllegalArgumentException");
  logger.logProblem("throwable", exception);
 }
 public interface MyLogger {
  // Types for log records
  int ERROR  = 0;
  int WARNING = 100;
  int STATUS = 200;
  int DEBUG  = 300;
  int TRACE  = 400;
  void logRecord(String message);
  void logProblem(String message, Throwable throwable);
 }
 public static class LoggerImpl implements MyLogger {
  @Override
      public void logRecord(String message) {
   Throwable throwable = new Throwable();
   log(message, throwable.getStackTrace()[1]);
  }
  @Override
      public void logProblem(String message, Throwable throwable) {
   StringWriter out = new StringWriter();
   PrintWriter writer = new PrintWriter(out);
   throwable.printStackTrace(writer);
   writer.flush();
   log(message + out.toString(), throwable.getStackTrace()[0]);
  }
  private void log(String message, StackTraceElement stackTraceElement) {
   String className = stackTraceElement.getClassName();
   String methodName = stackTraceElement.getMethodName();
   int lineNumber = stackTraceElement.getLineNumber();
   System.out.println(String.join(" ", "模拟打印日志:", methodName, className, "" + lineNumber, message));
  }
 }
}

模拟打印日志: main com.doctor.reflect.CallStackIntrospectionDemo 36 hello
模拟打印日志: main com.doctor.reflect.CallStackIntrospectionDemo 38 throwablejava.lang.IllegalArgumentException: IllegalArgumentException
  at com.doctor.reflect.CallStackIntrospectionDemo.main(CallStackIntrospectionDemo.java:38)