Java Thread dumpStack()方法

Thread類的dumpStack()方法將當前線程的堆疊跟蹤列印到標準錯誤流。它僅用於調試。

語法

public static void dumpStack()

返回

此方法不返回任何值。

示例

public class JavaDumpStackExp
{
    public static void main(String[] args)
    {
        Thread thread = Thread.currentThread();
        thread.setName("My ThreadDumpStack");

        // set thread priority to 6
        thread.setPriority(6);
        // prints the current thread
        System.out.println("Current thread: " + thread);

        int count = Thread.activeCount();
        System.out.println("currently active threads: " + count);

        // prints a stack trace of the current thread to the standard error stream, used for debugging
        Thread.dumpStack();
   }
}

執行上面示例代碼，得到以下結果：

Current thread: Thread[My ThreadDumpStack,6,main]
currently active threads: 1
java.lang.Exception: Stack trace
    at java.lang.Thread.dumpStack(Thread.java:1336)
    at zaixian.java.JavaDumpStackExp.main(JavaDumpStackExp.java:19)