检索当前线程的堆栈信息

根据当前线程获取堆栈信息，可以检索各个方法的调用顺序，也可以获得上层类的信息。

package cywen.demo;

public class Demo {

    public static void main(String[] args) {
        Invoker invoker = new Invoker();
        invoker.method();
    }

}

class Invoker {

    private Service service = new Service();

    public void method(){
        service.method();
    }

}

class Service {

    void method(){
        StackTraceElement[] stackTraceElements = Thread.currentThread().getStackTrace();
        System.out.println(Thread.currentThread().getStackTrace()[2].getMethodName());
        for (StackTraceElement stackTraceElement:stackTraceElements) {
            System.out.println(stackTraceElement.getClassName() + "." + stackTraceElement.getMethodName() + "()");
        }
    }

}

"C:\Program Files\Java\jdk1.8.0_191\bin\java.exe" ...
method
java.lang.Thread.getStackTrace()
cywen.demo.Service.method()
cywen.demo.Invoker.method()
cywen.demo.Constants.main()

Process finished with exit code 0