如何查看java线程状态（java查看线程池状态）

本篇文章给大家谈谈如何查看java线程状态，以及java查看线程池状态对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。 今天给各位分享如何查看java线程状态的知识，其中也会对java查看线程池状态进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！

本文目录一览：

• 1、jvm线程日常状态查看
• 2、java获取当前线程状态。
• 3、java 中怎么判断某一线程是否运行

jvm线程日常状态查看

1.查看所有java进程
jps
2.查看某java进程的信息
jinfo pid
3.java堆栈跟踪工具
jstack pid
4.查看gc情况，下面命令第四位标识打印间隔，第5位为打印多少次
jstat -gcutil pid 1000 5
5.查看java进程的内存映像工具
jmap -heap pid
6.查看当前java进程堆对象统计信息
jmap -histo pid
7.出问题再使用的命令，平时别用，dump出内存情况
jmap -dump:live,format=b,file=tmp.hprof pid
8.jdk自带的反解析工具
javap -verbose TestClass

java获取当前线程状态。

java线程的状态有下面几种状态：
/**
* Thread state for a thread which has not yet started.
*/
NEW,

/**
* Thread state for a runnable thread. A thread in the runnable
* state is executing in the Java virtual machine but it may
* be waiting for other resources from the operating system
* such as processor.
*/
RUNNABLE,

/**
* Thread state for a thread blocked waiting for a monitor lock.
* A thread in the blocked state is waiting for a monitor lock
* to enter a synchronized block/method or
* reenter a synchronized block/method after calling
* {@link Object#wait() Object.wait}.
*/
BLOCKED,

/**
* Thread state for a waiting thread.
* A thread is in the waiting state due to calling one of the
* following methods:
* <ul
* <li{@link Object#wait() Object.wait} with no timeout</li
* <li{@link #join() Thread.join} with no timeout</li
* <li{@link LockSupport#park() LockSupport.park}</li
* </ul
*
* <pA thread in the waiting state is waiting for another thread to
* perform a particular action.
*
* For example, a thread that has called <ttObject.wait()</tt
* on an object is waiting for another thread to call
* <ttObject.notify()</tt or <ttObject.notifyAll()</tt on
* that object. A thread that has called <ttThread.join()</tt
* is waiting for a specified thread to terminate.
*/
WAITING,

/**
* Thread state for a waiting thread with a specified waiting time.
* A thread is in the timed waiting state due to calling one of
* the following methods with a specified positive waiting time:
* <ul
* <li{@link #sleep Thread.sleep}</li
* <li{@link Object#wait(long) Object.wait} with timeout</li
* <li{@link #join(long) Thread.join} with timeout</li
* <li{@link LockSupport#parkNanos LockSupport.parkNanos}</li
* <li{@link LockSupport#parkUntil LockSupport.parkUntil}</li
* </ul
*/
TIMED_WAITING,
/**
* Thread state for a terminated thread.
* The thread has completed execution.
*/
TERMINATED;

java 中怎么判断某一线程是否运行

可以调用 Thread.isAlive() 判断如何查看java线程状态， 当然也可以设置一个标记如何查看java线程状态， 在那个线程结束之前设置标记。
/**
* Tests if this thread is alive. A thread is alive if it has
* been started and has not yet died.
* @return <codetrue</code if this thread is alive;
* <codefalse</code otherwise.
*/
Thread.isAlive() 关于如何查看java线程状态和java查看线程池状态的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。 如何查看java线程状态的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于java查看线程池状态、如何查看java线程状态的信息别忘了在本站进行查找喔。

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