Java获取正在执行的函数名

利用StackTrace堆栈轨迹获取某个时间的调用堆栈状态。

 package com.dsp.demo;

 public class TechDemo {

     public static void main(String[] args) {
         System.out.println("Hello dsp!");

         System.out.printf("%x\n", 2129);

         aMethod();
     }

     private static String getExecutingMethodName() {
         StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
         StackTraceElement e = stackTrace[2];
         return e.getMethodName();
     }

     private static void aMethod() {
         System.out.println("######### aMethod #########");
         //String executingMethodName = Thread.currentThread().getStackTrace()[2].getMethodName();
         String executingMethodName = getExecutingMethodName();
         System.out.println(executingMethodName);
         String className = Thread.currentThread().getStackTrace()[2].getClassName();
         System.out.println(className);
         String fileName = Thread.currentThread().getStackTrace()[2].getFileName();
         System.out.println(fileName);
         System.out.println("******** aMethod ******");

         bMethod();
     }

     private static void bMethod() {
         System.out.println("######### bMethod #########");
         // String executingMethodName = Thread.currentThread().getStackTrace()[2].getMethodName();
         String executingMethodName = getExecutingMethodName();
         System.out.println(executingMethodName);
         String className = Thread.currentThread().getStackTrace()[2].getClassName();
         System.out.println(className);
         String fileName = Thread.currentThread().getStackTrace()[2].getFileName();
         System.out.println(fileName);
         System.out.println("******** bMethod ******");

         cMethod();
     }

     private static void cMethod() {
         System.out.println("######### cMethod #########");
         String executingMethodName = getExecutingMethodName();
         System.out.println(executingMethodName);
         String className = Thread.currentThread().getStackTrace()[2].getClassName();
         System.out.println(className);
         String fileName = Thread.currentThread().getStackTrace()[2].getFileName();
         System.out.println(fileName);

         saveA();
         updateB();

         System.out.println("******** cMethod ******");
     }

     public static void saveA() {
         System.out.println("######### saveA #########");
         // ###
         String executingMethodName = getExecutingMethodName();
         System.out.println(executingMethodName);

         // ###
         String name = new Object(){}.getClass().getEnclosingMethod().getName();
         System.out.println(name);
         System.out.println("******** saveA ******");
     }

     public static void updateB() {
         System.out.println("######### updateB #########");
         String executingMethodName = getExecutingMethodName();
         System.out.println(executingMethodName);
         System.out.println("******** updateB ******");
     }

 }

执行结果：

Hello dsp!
851
######### aMethod #########
aMethod
com.dsp.demo.TechDemo
TechDemo.java
******** aMethod ******
######### bMethod #########
bMethod
com.dsp.demo.TechDemo
TechDemo.java
******** bMethod ******
######### cMethod #########
cMethod
com.dsp.demo.TechDemo
TechDemo.java
######### saveA #########
saveA
saveA
******** saveA ******
######### updateB #########
updateB
******** updateB ******
******** cMethod ******

另附：

Stack Trace - 百度百科

Java异常的栈轨迹(Stack Trace)

使用Stacktrace处理异常