Java获取调用当前方法的类名或方法名(栈堆信息)的四种方式举例

public class A {
    public static void main(String[] args) {
        B.print();
    }
}

class B {
    public static void print() {
        System.out.println("调用B#print");
        C.print();
    }
}

class C {
    public static void print() {
        System.out.println("调用C#print");
        // 获取所有线程的栈堆跟踪集合
        Map<Thread, StackTraceElement[]> allStackTraces = Thread.getAllStackTraces();
        // 去map集合里面拿当前线程的栈堆跟踪信息数组
        StackTraceElement[] stackTraceElements = allStackTraces.get(Thread.currentThread());
        System.out.println(Arrays.toString(stackTraceElements));
    }
}

public class A {
    public static void main(String[] args) {
        B.print();
        System.out.println(Arrays.toString(Thread.currentThread().getStackTrace()));
    }
}

class B {
    public static void print() {
        System.out.println("调用B#print");
        C.print();
    }
}

class C {
    public static void print() {
        // 获取当前线程，再获取栈堆跟踪数组
        StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
        System.out.println(Arrays.toString(stackTrace));
    }
}

public class A {
    public static void main(String[] args) {
        B.print();
    }
}

class B {
    public static void print() {
        System.out.println("调用B#print");
        C.print();
    }
}

class C {
    public static void print() {
        StackTraceElement[] stackTrace = new RuntimeException().getStackTrace();
        System.out.println(Arrays.toString(stackTrace));
    }
}

public class A {
    public static void main(String[] args) {
        B.print();
    }
}

class B {
    public static void print() {
        System.out.println("调用B#print");
        C.print();
    }
}

class C {

    public static void print() {
        // 获取一个安全管理器对象
        ClassContextSecurityManager securityManager = getSecurityManager();
        if (securityManager != null) {
            System.out.println(Arrays.toString(securityManager.getClassContext()));
        }
    }

    static ClassContextSecurityManager getSecurityManager() {
        try {
            return new ClassContextSecurityManager();
        } catch (Throwable throwable) {
            return null;
        }
    }

    /**
     * 自定义的安全管理器，继承java.lang.SecurityManager类
     */
    private static final class ClassContextSecurityManager extends SecurityManager {
    	/**
    	 * 重写getClassContext方法，不然方法在SecurityManager中又被protected修饰，其他类还是调用不了
    	 */
    	@Override
        protected Class<?>[] getClassContext() {
            return super.getClassContext();
        }
    }
}