blocks|key|4273424|text|Thread+t+=+new+Thread(new+Runnable()+{
++++public+void+run()+{
+++++++++try+{
++++++++++++++++Thread.sleep(5000);
++++++++++++}+catch+(InterruptedException+e)+{
++++++++++++++++//+TODO+Auto-generated+catch+block
++++++++++++++++e.printStackTrace();
++++++++++++}
++++}
});|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4273425|这样，线程将在执行run方法后终止。|unstyled|offset|length|style|CODE|4273426|Runnbale+r+=+...
Executor+executor+=+Executors.newFixedThreadPool(1);
executor.execute(r);|4273427|这样，执行器就会创建一个线程，它的工作原理如下：|4273428|new+Thread(new+Runnable()+{
++++@Override
++++public+void+run()+{
++++++++while(notShutdown())+{
++++++++++++waitingForTask();+//+may+get+blocked
++++++++++++runTask();+//+execute+Runnable+user+submits
++++++++}
++++}
});|4273429|这个线程不会在第一个任务之后终止，它会一直等待新的任务。您需要显式调用executor.shutdown()。|4273430|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ExecutorService.html#shutdown()^0|0|9|3|0|0|0|0|Z|J|Z|J|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|11|8|@$G|12|H|13|I|J]]|9|@]|A|$]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$B|C]]|$1|M|3|N|5|F|7|15|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$B|C]]|$1|Q|3|R|5|F|7|17|8|@$G|18|H|19|I|J]]|9|@$G|1A|H|1B|1|1C]]|A|$]]|$1|S|3|-4|5|F|7|1D|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]]]

<pre><code>Thread t = new Thread(new Runnable() {
 public void run() {
 try {
 Thread.sleep(5000);
 } catch (InterruptedException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }
});
</code></pre>

With this, the thread will terminate after executing the <code>run</code> method.

<pre><code>Runnbale r = ...
Executor executor = Executors.newFixedThreadPool(1);
executor.execute(r);
</code></pre>

With this, the executor will create a thread which works like below:

<pre><code>new Thread(new Runnable() {
 @Override
 public void run() {
 while(notShutdown()) {
 waitingForTask(); // may get blocked
 runTask(); // execute Runnable user submits
 }
 }
});
</code></pre>

This thread will not terminate after the first task, it will keep waiting for new tasks. You need call <a href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ExecutorService.html#shutdown()" rel="nofollow noreferrer"><code>executor.shutdown()</code></a> explicitly.

blocks|key|4273921|text|Executor接口不允许您关闭该服务。首选的方法是使用ExecutorService而不是Executor|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4273922|ExecutorService+executorService+=++Executors.newSingleThreadExecutor(factory);
++executorService.execute(new+Runnable()+{
+++@Override
+++public+void+run()+{
++++try+{
+++++doTask();
++++}+catch+(Exception+e)+{
+++++logger.error("indexing+failed",+e);
++++}
+++}
++});
++executorService.shutdown();|code-block|syntax|javascript|4273923|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/Executor.html|1|https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ExecutorService.html^0|0|8|0|S|F|1|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@$A|T|B|U|1|V]|$A|W|B|X|1|Y]]|C|$]]|$1|D|3|E|5|F|7|Z|8|@]|9|@]|C|$G|H]]|$1|I|3|-4|5|6|7|10|8|@]|9|@]|C|$]]]|J|$K|$5|L|M|N|C|$O|P]]|Q|$5|L|M|N|C|$O|R]]]]

<a href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/Executor.html" rel="nofollow noreferrer">Executor</a> interface would not allow you to shutdown the service. Preferred way is to use <a href="https://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ExecutorService.html" rel="nofollow noreferrer">ExecutorService</a> instead of Executor

<pre><code>ExecutorService executorService = Executors.newSingleThreadExecutor(factory);
 executorService.execute(new Runnable() {
 @Override
 public void run() {
 try {
 doTask();
 } catch (Exception e) {
 logger.error("indexing failed", e);
 }
 }
 });
 executorService.shutdown();
</code></pre>

I have the following code which runs on a simple main activity:

<pre><code> Executor executor = Executors.newFixedThreadPool(1);
 executor.execute(new Runnable() {
 public void run() {
 try {

 System.out.println("sleep");
 Thread.sleep(5000); 



 } catch (InterruptedException e) {
 System.out.println("Interrupted, so exiting.");
 }
 }
 });
</code></pre>

It looks like that when i run this code application doesnt terminate and nothing gets printed either (except the first sleep).

On the other hand when i run this:

<pre><code> Thread t = new Thread(new Runnable() {
 public void run() {
 try {
 Thread.sleep(5000);
 } catch (InterruptedException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }
 });
</code></pre>

application terminates just fine. Why?

Executor thread keeps running after main class is finished

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有以下代码，它在一个简单的主活动上运行： Executor executor = Executors.newFixedThreadPool(1);    executor.execute(new Runnable() {      public void run() {        try {           ...

问主类完成后，Executor线程继续运行
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问主类完成后，Executor线程继续运行
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