关于Thread.getStrackTrace
说明文档:
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即返回当前线程的堆栈元素
例:
public static void main(String[] args) {
StackTraceElement[] stackTraceElements=Thread.currentThread().getStackTrace();
System.out.println("The stackTraceElements length:"+stackTraceElements.length);
for(int i=0;i<stackTraceElements.length;i++){
System.out.println("
---the "+i+" element"+"---");
System.out.println("toString:"+stackTraceElements[i].toString());
System.out.println("ClassName:"+stackTraceElements[i].getClassName());
System.out.println("FileName:"+stackTraceElements[i].getFileName());
System.out.println("LineNumber:"+stackTraceElements[i].getLineNumber());
System.out.println("MethodName:"+stackTraceElements[i].getMethodName());
}
printStackInfos();
}
private static void printStackInfos(){
StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
System.out.println("
Called in printStackInfos() method!!!");
System.out.println("The stackTraceElements length:"+stackTraceElements.length);
for(int i =0;i<stackTraceElements.length;i++){
System.out.println("
---the "+i+" element"+"---");
System.out.println("toString:"+stackTraceElements[i].toString());
System.out.println("ClassName:"+stackTraceElements[i].getClassName());
System.out.println("FileName:"+stackTraceElements[i].getFileName());
System.out.println("LineNumber:"+stackTraceElements[i].getLineNumber());
System.out.println("MethodName:"+stackTraceElements[i].getMethodName());
}
}
输出:
The stackTraceElements length:2
---the 0 element---
toString:java.lang.Thread.getStackTrace(Thread.java:1567)
ClassName:java.lang.Thread
FileName:Thread.java
LineNumber:1567
MethodName:getStackTrace
---the 1 element---
toString:Exchange.main(Exchange.java:10)
ClassName:Exchange
FileName:Exchange.java
LineNumber:10
MethodName:main
Called in printStackInfos() method!!!
The stackTraceElements length:3
---the 0 element---
toString:java.lang.Thread.getStackTrace(Thread.java:1567)
ClassName:java.lang.Thread
FileName:Thread.java
LineNumber:1567
MethodName:getStackTrace
---the 1 element---
toString:Exchange.printStackInfos(Exchange.java:24)
ClassName:Exchange
FileName:Exchange.java
LineNumber:24
MethodName:printStackInfos
---the 2 element---
toString:Exchange.main(Exchange.java:20)
ClassName:Exchange
FileName:Exchange.java
LineNumber:20
MethodName:main
即当调用该函数时:main方法最先入方法栈,然后是printStackInfos,最后是
getStackTrace
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