{"id":2972,"date":"2023-07-14T17:42:20","date_gmt":"2023-07-14T09:42:20","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2972"},"modified":"2023-07-14T17:42:21","modified_gmt":"2023-07-14T09:42:21","slug":"%e9%9d%a2%e8%af%95%e9%a2%98%e7%b3%bb%e5%88%97%ef%bc%9a%e4%bb%80%e4%b9%88%e6%98%af%e7%ba%bf%e7%a8%8b%e6%b1%a0%ef%bc%9f%e7%ba%bf%e7%a8%8b%e6%b1%a0threadpoolexecutor%e4%bd%bf%e7%94%a8%e5%8f%8a%e5%85%b6","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/java\/%e9%9d%a2%e8%af%95%e9%a2%98%e7%b3%bb%e5%88%97%ef%bc%9a%e4%bb%80%e4%b9%88%e6%98%af%e7%ba%bf%e7%a8%8b%e6%b1%a0%ef%bc%9f%e7%ba%bf%e7%a8%8b%e6%b1%a0threadpoolexecutor%e4%bd%bf%e7%94%a8%e5%8f%8a%e5%85%b6\/","title":{"rendered":"\u9762\u8bd5\u9898\u7cfb\u5217\uff1a\u4ec0\u4e48\u662f\u7ebf\u7a0b\u6c60\uff1f\u7ebf\u7a0b\u6c60ThreadPoolExecutor\u4f7f\u7528\u53ca\u5176\u539f\u7406\u53c8\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\u4f5c\u8005\u5e73\u53f0\uff1a<\/span><\/p>\n

| CSDN\uff1ahttps:\/\/blog.csdn.net\/qq_41153943\uff08ID\uff1a\u6c5f\u590f\u3001\uff09<\/span><\/p>\n

| \u6398\u91d1\uff1ahttps:\/\/juejin.cn\/user\/651387938290686\uff08ID\uff1a<\/span><\/span>jiangxia_1024<\/span>\uff09<\/span><\/p>\n

| \u77e5\u4e4e\uff1ahttps:\/\/www.zhihu.com\/p<\/span>eople\/1024-paper-96\uff08ID\uff1a<\/span>\u6c5f\u590f\uff09<\/span><\/p>\n

| GitHub\uff1ahttps:\/\/github.com\/JiangXia-1024?tab=repositories<\/span><\/span><\/p>\n

|\u00a0\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a1024\u7b14\u8bb0<\/span><\/span><\/span><\/p>\n

\n
\n
\u672c\u6587\u4e00\u51712496\u5b57\uff0c\u9884\u8ba1\u9605\u8bfb15\u5206\u949f<\/section>\n<\/section>\n<\/blockquote>\n
1\u3001\u4ec0\u4e48\u662fSynchronized\u548cReentrantLock<\/span><\/section>\n

Java\u4e2d\u7684\u7ebf\u7a0b\uff08Thread\uff09\u662f\u6307\u7a0b\u5e8f\u6267\u884c\u7684\u4e00\u4e2a\u8def\u5f84\uff0c\u5b83\u662f\u4e00\u79cd\u8f7b\u91cf\u7ea7\u7684\u8fdb\u7a0b\uff0c\u7528\u4e8e\u6267\u884c\u7279\u5b9a\u7684\u4efb\u52a1\u3002\u6bcf\u4e2aJava\u5e94\u7528\u90fd\u81f3\u5c11\u6709\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u5373\u4e3b\u7ebf\u7a0b\uff0c\u5f53Java\u5e94\u7528\u542f\u52a8\u65f6\uff0c\u4e3b\u7ebf\u7a0b\u4f1a\u81ea\u52a8\u5f00\u542f\u3002<\/span><\/p>\n

Java\u4e2d\u7684\u7ebf\u7a0b\u662f\u901a\u8fc7java.lang.Thread\u7c7b\u6765\u5b9e\u73b0\u7684\u3002\u5728Java\u4e2d\uff0c\u521b\u5efa\u7ebf\u7a0b\u4e3b\u8981\u6709\u4e24\u79cd\u65b9\u5f0f\uff1a<\/span><\/p>\n

1. 1\u3001\u7ee7\u627fThread\u7c7b\uff1a<\/span><\/h3>\n

- \u5b9a\u4e49\u4e00\u4e2a\u7ee7\u627fThread\u7c7b\u7684\u5b50\u7c7b\uff1b<\/span><\/p>\n

- \u91cd\u5199Thread\u7c7b\u7684run()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5<\/span>\u662f\u7ebf\u7a0b\u7684\u5165\u53e3\u70b9\uff1b<\/span><\/p>\n

- \u5b9e\u4f8b\u5316\u8be5\u5b50\u7c7b\uff0c\u5e76\u8c03\u7528start()\u65b9\u6cd5\uff0cstart()\u65b9\u6cd5\u5c06\u542f\u52a8\u65b0\u7684\u7ebf\u7a0b\uff0c\u5e76\u6267\u884crun()\u65b9\u6cd5\u5185\u7684\u4ee3\u7801\u3002<\/span><\/p>\n

\u4f8b\u5982\uff1a<\/span><\/p>\n

\n
   public<\/span> class<\/span> MyThread<\/span> extends<\/span> Thread<\/span> <\/span>{<\/span><\/code>\n       @Override<\/span><\/span><\/code>\n       public<\/span> void<\/span> run<\/span>()<\/span> <\/span>{<\/span><\/code>\n           \/\/ \u7ebf\u7a0b\u8981\u6267\u884c\u7684\u4ee3\u7801<\/span><\/span><\/code>\n       }<\/span><\/code>\n   }<\/span><\/code>\n<\/span><\/code>   \/\/ \u521b\u5efa\u5e76\u542f\u52a8\u65b0\u7ebf\u7a0b<\/span><\/span><\/code>\n   MyThread thread = new<\/span> MyThread();<\/span><\/code>\n   thread.start();<\/span><\/code><\/pre>\n<\/section>\n
1.2\u3001\u00a0\u5b9e\u73b0Runnable\u63a5\u53e3\uff1a<\/span><\/h3>\n
- \u5b9a\u4e49\u4e00\u4e2a\u5b9e\u73b0Runnable\u63a5\u53e3\u7684\u7c7b\uff1b<\/span><\/p>\n
- \u5b9e\u73b0Runnable\u63a5\u53e3\u4e2d\u7684run()\u65b9\u6cd5\uff1b<\/span><\/p>\n
- \u521b\u5efa\u8be5\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5e76\u5c06\u5176\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u7ed9Thread\u7c7b\u7684\u6784\u9020\u51fd\u6570\uff1b<\/span><\/p>\n
- \u8c03\u7528start()\u65b9\u6cd5\u6765\u542f\u52a8\u7ebf\u7a0b\u3002<\/span><\/p>\n
\u4f8b\u5982\uff1a<\/span><\/p>\n
\n
   public<\/span> class<\/span> MyRunnable<\/span> implements<\/span> Runnable<\/span> <\/span>{<\/span><\/code>\n       @Override<\/span><\/span><\/code>\n       public<\/span> void<\/span> run<\/span>()<\/span> <\/span>{<\/span><\/code>\n           \/\/ \u7ebf\u7a0b\u8981\u6267\u884c\u7684\u4ee3\u7801<\/span><\/span><\/code>\n       }<\/span><\/code>\n   }<\/span><\/code>\n   \/\/ \u521b\u5efaRunnable\u5bf9\u8c61<\/span><\/span><\/code>\n   MyRunnable runnable = new<\/span> MyRunnable();<\/span><\/code>\n   \/\/ \u521b\u5efa\u5e76\u542f\u52a8\u65b0\u7ebf\u7a0b<\/span><\/span><\/code>\n   Thread thread = new<\/span> Thread(runnable);<\/span><\/code>\n   thread.start();<\/span><\/code><\/pre>\n<\/section>\n
\u5728Java\u4e2d\uff0c\u591a\u7ebf\u7a0b\u7684\u4f7f\u7528\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6548\u7387\uff0c\u7279\u522b\u662f\u5bf9\u4e8e\u4e00\u4e9b\u9700\u8981\u5927\u91cf\u8ba1\u7b97\u6216I\/O\u7b49\u5f85\u7684\u4efb\u52a1\u6765\u8bf4\uff0c\u4f7f\u7528\u591a\u7ebf\u7a0b\u53ef\u4ee5\u5145\u5206\u5229\u7528CPU\u8d44\u6e90\uff0c\u5e76\u63d0\u9ad8\u7a0b\u5e8f\u54cd\u5e94\u901f\u5ea6\u3002<\/span><\/p>\n
2\u3001\u7ebf\u7a0b\u6c60<\/span><\/h2>\n
Java\u4e2d\u7684\u7ebf\u7a0b\u6c60\u662f\u4e00\u79cd\u53ef\u4ee5\u7ba1\u7406\u548c\u590d\u7528\u591a\u4e2a\u7ebf\u7a0b\u7684\u673a\u5236\u3002\u5b83\u4e3b\u8981\u5305\u542b\u4e24\u4e2a\u7ec4\u4ef6\uff1a\u4efb\u52a1\u961f\u5217\u548c\u7ebf\u7a0b\u6c60\u3002\u4efb\u52a1\u961f\u5217\u7528\u4e8e\u5b58\u50a8\u7b49\u5f85\u6267\u884c\u7684\u4efb\u52a1\uff0c\u800c\u7ebf\u7a0b\u6c60\u5219\u8d1f\u8d23\u4ece\u4efb\u52a1\u961f\u5217\u4e2d\u53d6\u51fa\u4efb\u52a1\uff0c\u521b\u5efa\u7ebf\u7a0b\u5e76\u6267\u884c\u4efb\u52a1\u3002<\/span><\/p>\n
\u5728Java\u4e2d\uff0c\u7ebf\u7a0b\u6c60\u901a\u8fc7 Executor \u6846\u67b6\u63d0\u4f9b\u652f\u6301\u3002Java\u4e2d\u7684Executor\u88ab\u8bbe\u8ba1\u6210\u4e00\u4e2a\u9876\u5c42\u63a5<\/span>\u53e3\uff0c\u7528\u4e8e\u5b9e\u73b0\u4e0d\u540c\u7684\u7ebf\u7a0b\u8c03\u5ea6\u7b56\u7565\u3002Executors\u7c7b\u662fExecutor\u6846\u67b6\u7684\u5de5\u5382\u7c7b\uff0c\u53ef\u4ee5\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u65b9\u4fbf\u5730\u521b\u5efa\u548c\u7ba1\u7406\u7ebf\u7a0b\u6c60\u3002\u5e38\u89c1\u7684\u7ebf\u7a0b\u6c60\u7c7b\u578b\u5305\u62ec\uff1a<\/span><\/p>\n
1. FixedThreadPool\uff1a\u56fa\u5b9a\u5927\u5c0f\u7684\u7ebf\u7a0b\u6c60\uff0c\u7ebf\u7a0b\u6570\u56fa\u5b9a\uff0c\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u59cb\u7ec8\u4fdd\u6301\u4e0d\u53d8\u3002\u5982\u679c\u67d0\u4e2a\u4efb\u52a1\u8fdb\u5165\u4efb\u52a1\u961f\u5217\u540e\u65e0\u6cd5\u7acb\u5373\u6267\u884c\uff0c\u5219\u5fc5\u987b\u7b49\u5f85\u5176\u4ed6\u4efb\u52a1\u5b8c\u6210\u540e\u624d\u80fd\u6267\u884c\u3002<\/span><\/p>\n
2. CachedThreadPool\uff1a\u53ef\u7f13\u5b58\u7684\u7ebf\u7a0b\u6c60\uff0c\u6839\u636e\u9700\u8981\u521b\u5efa\u65b0\u7ebf\u7a0b\uff0c\u4f46\u5728\u6709\u7a7a\u95f2\u7ebf\u7a0b\u65f6\u4f1a\u91cd\u7528\u5148\u524d\u6784\u5efa\u7684\u7ebf\u7a0b\u3002\u5f53\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u957f\u65f6\u95f4\u672a\u4f7f\u7528\u4e14\u6ee1\u8db3\u56de\u6536\u6761\u4ef6\u65f6\uff08JVM\u4f1a\u81ea\u52a8\u5224\u65ad\uff09\uff0c\u4f1a\u88ab\u79fb\u51fa\u7ebf\u7a0b\u6c60\uff0c\u76f4\u5230\u4e0b\u6b21\u6709\u4efb\u52a1\u9700\u8981\u6267\u884c\u65f6\u518d\u91cd\u65b0\u521b\u5efa\u65b0\u7ebf\u7a0b\u3002<\/span><\/p>\n
3. SingleThreadExecutor\uff1a<\/span>\u5355\u4e00\u7ebf\u7a0b\u7ebf\u7a0b\u6c60<\/span>\uff0c\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u5728\u5de5\u4f5c\uff0c\u9010\u4e2a\u6267\u884c\u4efb\u52a1\u3002<\/span><\/p>\n
4. ScheduledThreadPool\uff1a\u5177\u6709\u5b9a\u671f\u6267\u884c\u4efb\u52a1\u548c\u5ef6\u8fdf\u6267\u884c\u4efb\u52a1\u7684\u56fa\u5b9a\u7ebf\u7a0b\u6c60<\/span>\u5927\u5c0f\u3002<\/span><\/p>\n
Java \u4e2d\u4f7f\u7528\u7ebf\u7a0b\u6c60\u7684\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/span><\/p>\n
\n
\/\/ \u521b\u5efa\u56fa\u5b9a\u5927\u5c0f\u7684\u7ebf\u7a0b\u6c60<\/span><\/span><\/code>\nExecutorService executor = Executors.newFixedThreadPool(10<\/span>);<\/span><\/code>\n\/\/ \u521b\u5efa\u4e00\u4e2a\u9700\u8981\u6267\u884c\u7684\u4efb\u52a1<\/span><\/span><\/code>\nRunnable task = new<\/span> Runnable() {<\/span><\/code>\n   @Override<\/span><\/span><\/code>\n   public<\/span> void<\/span> run<\/span>()<\/span> {<\/span><\/code>\n      \/\/ \u6267\u884c\u4e00\u4e9b\u64cd\u4f5c\uff0c\u4f8b\u5982\u8f93\u51fa\u5f53\u524d\u7ebf\u7a0b\u540d\u5b57<\/span><\/span><\/code>\n      System.out<\/span>.println(\"\u5f53\u524d\u7ebf\u7a0b\uff1a\"<\/span> + Thread.currentThread().getName());<\/span><\/code>\n   }<\/span><\/code>\n};<\/span><\/code>\n\/\/ \u63d0\u4ea4\u4efb\u52a1\u5230\u7ebf\u7a0b\u6c60\u4e2d<\/span><\/span><\/code>\nexecutor.submit(task);<\/span><\/code>\n<\/span><\/code>\/\/ \u6700\u540e\u5173\u95ed\u7ebf\u7a0b\u6c60<\/span><\/span><\/code>\nexecutor.shutdown();<\/span><\/code><\/pre>\n<\/section>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u4f7f\u7528Executors.newFixedThreadPool()\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u4e3a 10 \u7684\u7ebf\u7a0b\u6c60\u3002\u7136\u540e\u521b\u5efa\u4e86\u4e00\u4e2a\u9700\u8981\u6267\u884c\u7684\u4efb\u52a1\uff0c\u5b83\u4f1a\u8f93\u51fa\u5f53\u524d\u7ebf\u7a0b\u540d\u5b57\u3002\u63a5\u7740\u901a\u8fc7executor.submit()\u65b9\u6cd5\u5c06\u4efb\u52a1\u63d0\u4ea4\u7ed9\u7ebf\u7a0b\u6c60\u5904\u7406\u3002\u6700\u540e\uff0c\u4f7f\u7528 executor.shutdown()\u65b9\u6cd5\u5173\u95ed\u7ebf\u7a0b\u6c60\u3002<\/span><\/p>\n
\u4f7f\u7528\u7ebf\u7a0b\u6c60\u53ef\u4ee5\u907f\u514d\u91cd\u590d\u521b\u5efa\u3001\u9500\u6bc1\u7ebf\u7a0b\u7684\u5f00\u9500\uff0c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002\u540c\u65f6\uff0c\u7ebf\u7a0b\u6c60\u8fd8\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u63a7\u5236\u5e76\u53d1\u5ea6\uff0c\u9632\u6b62\u7531\u4e8e\u7ebf\u7a0b\u6570\u91cf\u8fc7\u591a\u800c\u9020\u6210\u7cfb\u7edf\u8d1f\u8f7d\u8fc7\u9ad8\u7684\u95ee\u9898\u3002\u7ebf\u7a0b\u6c60\u4e5f\u53ef\u4ee5\u7075\u6d3b\u5730\u914d\u7f6e\u4e00\u4e9b\u53c2\u6570\uff0c\u4f8b\u5982\u7ebf\u7a0b\u6570\u3001\u7ebf\u7a0b\u8d85\u65f6\u65f6\u95f4\u7b49\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u6ee1\u8db3\u5e94\u7528\u7a0b\u5e8f\u5bf9\u7ebf\u7a0b\u5904\u7406\u7684\u7ba1\u7406\u9700\u6c42\u3002<\/span><\/p>\n
3\u3001\u7ebf\u7a0b\u6c60ThreadPoolExecutor\u539f\u7406<\/span><\/h2>\n
Java\u4e2d\u7684\u7ebf\u7a0b\u6c60\u662f\u901a\u8fc7 Executor \u6846\u67b6\u63d0\u4f9b\u652f\u6301\u7684\uff0c\u5176\u4e2d ThreadPoolExecutor \u662f Executor \u7684\u4e00\u4e2a\u5b9e\u73b0\u7c7b\u3002ThreadPoolExecutor \u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u5730\u914d\u7f6e\u7ebf\u7a0b\u6c60\u7684\u53c2\u6570\u3002<\/span><\/p>\n
ThreadPoolExecutor \u4e3b\u8981\u6709\u4e0b\u9762\u51e0\u4e2a\u6784\u9020\u65b9\u6cd5\uff1a<\/span><\/p>\n
\n
ThreadPoolExecutor(int<\/span> corePoolSize, int<\/span> maximumPoolSize, long<\/span> keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue)<\/span><\/code>\nThreadPoolExecutor(int<\/span> corePoolSize, int<\/span> maximumPoolSize, long<\/span> keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, RejectedExecutionHandler handler)<\/span><\/code>\nThreadPoolExecutor(int<\/span> corePoolSize, int<\/span> maximumPoolSize, long<\/span> keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory)<\/span><\/code>\nThreadPoolExecutor(int<\/span> corePoolSize, int<\/span> maximumPoolSize, long<\/span> keepAliveTime, TimeUnit unit, BlockingQueue<Runnable> workQueue, ThreadFactory threadFactory, RejectedExecutionHandler handler)<\/span><\/code><\/pre>\n<\/section>\n
\u5b83\u4eec\u90fd\u5177\u6709\u76f8\u540c\u7684\u6838\u5fc3\u53c2\u6570\uff1a<\/span><\/p>\n
- corePoolSize\uff1a\u6838\u5fc3\u7ebf\u7a0b\u6570\u3002<\/span><\/p>\n
- maximumPoolSize\uff1a\u7ebf\u7a0b\u6c60\u6700\u5927\u540c\u65f6\u6267\u884c\u7684\u7ebf\u7a0b\u6570\u3002<\/span><\/p>\n
- keepAliveTime\uff1a\u7a7a\u95f2\u7ebf\u7a0b\u7b49\u5f85\u65b0\u4efb\u52a1\u7684\u6700\u957f\u65f6\u95f4\u3002<\/span><\/p>\n
- unit\uff1akeepAliveTime \u53c2\u6570\u7684\u65f6\u95f4\u5355\u4f4d\u3002<\/span><\/p>\n
- workQueue\uff1a\u963b\u585e\u961f\u5217\uff0c\u7528\u4e8e\u5b58\u50a8\u5f85\u6267\u884c\u7684\u4efb\u52a1\u3002<\/span><\/p>\n
- threadFactory\uff1a\u7ebf\u7a0b\u5de5\u5382\uff0c\u7528\u4e8e\u521b\u5efa\u7ebf\u7a0b\u3002<\/span><\/p>\n
- handler\uff1a\u62d2\u7edd\u7b56\u7565\uff0c\u7528\u4e8e\u5904\u7406\u65b0\u4efb\u52a1\u63d0\u4ea4\u65f6\u65e0\u6cd5\u6dfb\u52a0\u5230\u963b\u585e\u961f\u5217\u4e2d\u7684\u60c5\u51b5\u3002<\/span><\/p>\n
ThreadPoolExecutor \u63a7\u5236\u7740\u591a\u4e2a\u5e76\u53d1\u6267\u884c\u7684\u4efb\u52a1\uff0c\u53ef\u4ee5\u5c06\u4e00\u4e2a\u7ebf\u7a0b\u6c60\u5206\u6210\u4e09\u90e8\u5206\uff1a<\/span><\/p>\n
1. \u4efb\u52a1\u961f\u5217\u3002\u5f53\u7ebf\u7a0b\u6c60\u4e2d\u6240\u6709\u7684\u7ebf\u7a0b\u5747\u5904\u4e8e\u6d3b\u52a8\u72b6\u6001\u65f6\uff0c\u65b0\u4efb\u52a1\u5c06\u4f1a\u5728\u4efb\u52a1\u961f\u5217\u4e2d\u7b49\u5f85\u3002<\/span><\/p>\n
2. \u7ebf\u7a0b\u6c60\u672c\u8eab\u3002ThreadPoolExecutor \u5b9e\u4f8b\u7ef4\u62a4\u7740\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u7684\u7ebf\u7a0b\u6570\uff0c\u8fd9\u4e9b\u7ebf\u7a0b\u5df2\u7ecf\u88ab\u521b\u5efa\u51fa\u6765\u5e76\u4e14\u51c6\u5907\u597d\u63a5\u53d7\u65b0\u7684\u4efb\u52a1\u3002<\/span><\/p>\n
3. \u4efb\u52a1\u62d2\u7edd\u5904\u7406\u5668\u3002\u5f53\u4efb\u52a1\u4e0d\u80fd\u88ab\u6dfb\u52a0\u5230\u7ebf\u7a0b\u6c60\u6216\u6267\u884c\u961f\u5217\u4e2d\u65f6\uff0c\u5c06\u7531\u4efb\u52a1\u62d2\u7edd\u5904\u7406\u5668\u8fdb\u884c\u5904\u7406\u3002<\/span><\/p>\n
ThreadPoolExecutor \u7684\u539f\u7406\u662f\uff1a\u901a\u8fc7\u914d\u7f6e\u4e00\u4e9b\u53c2\u6570\uff0c\u53ef\u4ee5\u7075\u6d3b\u63a7\u5236\u7ebf\u7a0b\u6c60\u4e2d\u7684\u7ebf\u7a0b\u6570\u91cf\u3001\u4efb\u52a1\u961f\u5217\u5bb9\u91cf\u4ee5\u53ca\u4f55\u65f6\u521b\u5efa\u548c\u9500\u6bc1\u7ebf\u7a0b\u7b49\u64cd\u4f5c\uff0c\u907f\u514d\u4e86\u9891\u7e41\u5730\u521b\u5efa\u3001\u9500\u6bc1\u7ebf\u7a0b\u5e26\u6765\u7684\u6027\u80fd\u635f\u5931\uff0c\u5e76\u4e14\u53ef\u4ee5\u66f4\u597d\u5730\u7ba1\u7406\u7ebf\u7a0b\u7684\u5f00\u9500\u548c\u65f6\u95f4\uff0c\u8fbe\u5230\u63d0\u9ad8\u7a0b\u5e8f\u6027\u80fd\u548c\u53ef\u7ef4\u62a4\u6027\u7684\u76ee\u7684\u3002<\/span><\/p>\n
\u4e0b\u9762\u662f ThreadPoolExecutor \u7684\u4f7f\u7528\u793a\u4f8b\uff1a<\/span><\/p>\n
\n
\/\/ \u521b\u5efa\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u4e3a10\u7684\u7ebf\u7a0b\u6c60<\/span><\/span><\/code>\nThreadPoolExecutor executor = new<\/span> ThreadPoolExecutor(<\/span><\/code>\n        10<\/span>, \/\/ \u6838\u5fc3\u7ebf\u7a0b\u6c60\u5927\u5c0f<\/span><\/span><\/code>\n        20<\/span>, \/\/ \u6700\u591a\u5141\u8bb820\u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c<\/span><\/span><\/code>\n        60L<\/span>, \/\/ \u7a7a\u95f2\u7ebf\u7a0b\u7b49\u5f85\u65b0\u4efb\u52a1\u7684\u6700\u957f\u65f6\u95f4<\/span><\/span><\/code>\n        TimeUnit.SECONDS, \/\/ \u65f6\u95f4\u5355\u4f4d\uff08\u79d2\uff09<\/span><\/span><\/code>\n        new<\/span> ArrayBlockingQueue<>(1000<\/span>), \/\/ \u7b49\u5f85\u961f\u5217\uff08\u5bb9\u91cf\u4e3a1000\uff09<\/span><\/span><\/code>\n        new<\/span> ThreadPoolExecutor.CallerRunsPolicy() \/\/ \u62d2\u7edd\u7b56\u7565\uff1a\u8c03\u7528\u8005\u8fd0\u884c\u7b56\u7565<\/span><\/span><\/code>\n);<\/span><\/code>\n<\/span><\/code>\/\/ \u63d0\u4ea4\u4efb\u52a1\u5230\u7ebf\u7a0b\u6c60\u4e2d<\/span><\/span><\/code>\nexecutor.submit(() -> {<\/span><\/code>\n    try<\/span> {<\/span><\/code>\n        Thread.sleep(1000<\/span>);<\/span><\/code>\n        System.out<\/span>.println(\"Hello, world!\"<\/span>);<\/span><\/code>\n    } catch<\/span> (InterruptedException e) {<\/span><\/code>\n        e.printStackTrace();<\/span><\/code>\n    }<\/span><\/code>\n});<\/span><\/code>\n<\/span><\/code>\/\/ \u5173\u95ed\u7ebf\u7a0b\u6c60<\/span><\/span><\/code>\nexecutor.shutdown();<\/span><\/code><\/pre>\n<\/section>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u9996\u5148\u901a\u8fc7\u6784\u9020\u65b9\u6cd5\u521b\u5efa\u4e86\u4e00\u4e2a\u56fa\u5b9a\u5927\u5c0f\u4e3a 10 \u7684\u7ebf\u7a0b\u6c60executor\uff0c\u5b83\u6700\u591a\u5141\u8bb8 20 \u4e2a\u7ebf\u7a0b\u540c\u65f6\u6267\u884c\uff0c\u5e76\u4e14\u7a7a\u95f2\u7ebf\u7a0b\u7b49\u5f85\u65b0\u4efb\u52a1\u7684\u6700\u957f\u65f6\u95f4\u4e3a 60 \u79d2\u3002\u4efb\u52a1\u961f\u5217\u662f\u4e00\u4e2a\u5bb9\u91cf\u4e3a 1000 \u7684\u6709\u754c\u963b\u585e\u961f\u5217\u3002\u62d2\u7edd\u7b56\u7565\u91c7\u7528\u4e86CallerRunsPolicy\uff0c\u5f53\u7ebf\u7a0b\u6c60\u65e0\u6cd5\u5904\u7406\u65b0\u4efb\u52a1\u65f6\uff0c\u4f1a\u7531\u63d0\u4ea4\u8be5\u4efb\u52a1\u7684\u4e3b\u7ebf\u7a0b\u76f4\u63a5\u8fd0\u884c\u4efb\u52a1\u3002<\/span><\/p>\n
\u63a5\u7740\uff0c\u901a\u8fc7executor.submit()\u65b9\u6cd5\u63d0\u4ea4\u4e86\u4e00\u4e2a\u4efb\u52a1\u5230\u7ebf\u7a0b\u6c60\u4e2d\u3002\u8fd9\u4e2a\u4efb\u52a1\u4f1a\u7761\u7720 1 \u79d2\u5e76\u8f93\u51fa \"Hello, world!\"\u3002<\/span><\/p>\n
\u6700\u540e\uff0c\u901a\u8fc7executor.shutdown()\u65b9\u6cd5\u5173\u95ed\u4e86\u7ebf\u7a0b\u6c60\u3002<\/span><\/p>\n
4\u3001<\/span>\u603b\u7ed3<\/span><\/span><\/span><\/p>\n
\u5728\u4f7f\u7528\u7ebf\u7a0b\u6c60\u65f6\uff0c\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u4e1a\u52a1\u573a\u666f\u9009\u62e9\u5408\u9002\u7684\u7ebf\u7a0b\u6c60\u7c7b\u578b\u548c\u53c2\u6570\uff0c\u4ee5\u8fbe\u5230\u66f4\u597d\u5730\u63a7\u5236\u5e76\u53d1\u5ea6\u3001\u63d0\u9ad8\u7a0b\u5e8f\u6027\u80fd\u7b49\u76ee\u7684\u3002<\/span><\/p>\n
\u6700\u540e\u611f\u8c22\u5927\u5bb6\u7684\u5173\u6ce8\uff01<\/span><\/p>\n
-END-<\/span><\/p>\n
<\/section>\n
\n
\u76f8\u5173\u63a8\u8350\uff1a<\/span><\/section>\n