本文研究的主要是Java StackTraceElement的相關內容,具體介紹如下。
package com.demo.test;public class StackTraceDemo {public static void testA() {testB();}public static void testB() {StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();System.out.println("-------> StackTraceElement[]");for (int i = 0; i < stackTraceElements.length; i++) {System.out.println("-------> " + i);System.out.println(stackTraceElements[i]);System.out.println("StackTraceElement.getClassName() => " + stackTraceElements[i].getClassName());System.out.println("StackTraceElement.getFileName() => " + stackTraceElements[i].getFileName());System.out.println("StackTraceElement.getLineNumber() => " + stackTraceElements[i].getLineNumber());System.out.println("StackTraceElement.getMethodName() => " + stackTraceElements[i].getMethodName());System.out.println("StackTraceElement.isNativeMethod() => " + stackTraceElements[i].isNativeMethod());}}public static String getMethodName() {StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();if(stackTraceElements.length > 2) {return stackTraceElements[2].getMethodName();}return null;}public static void main(String[] args) {testA();System.out.println("/nthis's method name is " + getMethodName());}}-------> StackTraceElement[]
-------> 0
java.lang.Thread.getStackTrace(Unknown Source)
StackTraceElement.getClassName() => java.lang.Thread
StackTraceElement.getFileName() => null
StackTraceElement.getLineNumber() => -1
StackTraceElement.getMethodName() => getStackTrace
StackTraceElement.isNativeMethod() => false
-------> 1
com.demo.test.StackTraceDemo.testB(StackTraceDemo.java:10)
StackTraceElement.getClassName() => com.demo.test.StackTraceDemo
StackTraceElement.getFileName() => StackTraceDemo.java
StackTraceElement.getLineNumber() => 10
StackTraceElement.getMethodName() => testB
StackTraceElement.isNativeMethod() => false
-------> 2
com.demo.test.StackTraceDemo.testA(StackTraceDemo.java:6)
StackTraceElement.getClassName() => com.demo.test.StackTraceDemo
StackTraceElement.getFileName() => StackTraceDemo.java
StackTraceElement.getLineNumber() => 6
StackTraceElement.getMethodName() => testA
StackTraceElement.isNativeMethod() => false
-------> 3
com.demo.test.StackTraceDemo.main(StackTraceDemo.java:32)
StackTraceElement.getClassName() => com.demo.test.StackTraceDemo
StackTraceElement.getFileName() => StackTraceDemo.java
StackTraceElement.getLineNumber() => 32
StackTraceElement.getMethodName() => main
StackTraceElement.isNativeMethod() => falsethis's method name is main
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