Java\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u4e3b\u9898\u3002Java\u901a\u8fc7Java\u7ebf\u7a0b\u63d0\u4f9b\u591a\u7ebf\u7a0b\u73af\u5883\u652f\u6301\uff0c\u4ece\u540c\u4e00\u4e2a\u5bf9\u8c61\u521b\u5efa\u7684\u591a\u4e2a\u7ebf\u7a0b\u4f1a\u5171\u4eab\u5bf9\u8c61\u53d8\u91cf\uff0c\u5f53\u7ebf\u7a0b\u7528\u4e8e\u8bfb\u53d6\u548c\u66f4\u65b0\u5171\u4eab\u6570\u636e\u65f6\uff0c\u8fd9\u53ef\u80fd\u5bfc\u81f4\u6570\u636e\u4e0d\u4e00\u81f4\u6027\u3002<\/p>\n
\u6570\u636e\u4e0d\u4e00\u81f4\u7684\u539f\u56e0\u5728\u4e8e\u66f4\u65b0\u4efb\u4f55\u5b57\u6bb5\u7684\u503c\u4e0d\u662f\u539f\u5b50\u6027\u64cd\u4f5c\uff0c\u5b83\u9700\u8981\u4e09\u4e2a\u6b65\u9aa4\uff1a\u9996\u5148\u8bfb\u53d6\u5f53\u524d\u503c\uff0c\u7136\u540e\u6267\u884c\u5fc5\u8981\u7684\u64cd\u4f5c\u4ee5\u83b7\u53d6\u66f4\u65b0\u540e\u7684\u503c\uff0c\u6700\u540e\u5c06\u66f4\u65b0\u540e\u7684\u503c\u8d4b\u7ed9\u5b57\u6bb5\u5f15\u7528\u3002\u8ba9\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u7a0b\u5e8f\u6765\u68c0\u67e5\u8fd9\u4e2a\u60c5\u51b5\uff0c\u5176\u4e2d\u591a\u4e2a\u7ebf\u7a0b\u6b63\u5728\u66f4\u65b0\u5171\u4eab\u6570\u636e\u3002<\/p>\n
package com.Olivia.threads;\r\n\r\npublic class ThreadSafety {\r\n\r\n public static void main(String[] args) throws InterruptedException {\r\n \r\n ProcessingThread pt = new ProcessingThread();\r\n Thread t1 = new Thread(pt, \"t1\");\r\n t1.start();\r\n Thread t2 = new Thread(pt, \"t2\");\r\n t2.start();\r\n \/\/wait for threads to finish processing\r\n t1.join();\r\n t2.join();\r\n System.out.println(\"Processing count=\"+pt.getCount());\r\n }\r\n\r\n}\r\n\r\nclass ProcessingThread implements Runnable{\r\n private int count;\r\n \r\n @Override\r\n public void run() {\r\n for(int i=1; i < 5; i++){\r\n processSomething(i);\r\n \tcount++;\r\n }\r\n }\r\n\r\n public int getCount() {\r\n return this.count;\r\n }\r\n\r\n private void processSomething(int i) {\r\n \/\/ processing some job\r\n try {\r\n Thread.sleep(i*1000);\r\n } catch (InterruptedException e) {\r\n e.printStackTrace();\r\n }\r\n }\r\n \r\n}\r\n<\/code><\/pre>\n\u5728\u4e0a\u9762\u7684\u7a0b\u5e8f\u4e2d\uff0c\u901a\u8fc7for\u5faa\u73af\uff0c\u8ba1\u6570\u5668\u9012\u589e\u4e86\u56db\u6b21\u3002\u7531\u4e8e\u6211\u4eec\u6709\u4e24\u4e2a\u7ebf\u7a0b\uff0c\u5f53\u8fd9\u4e24\u4e2a\u7ebf\u7a0b\u90fd\u6267\u884c\u5b8c\u540e\uff0c\u8ba1\u6570\u5668\u7684\u503c\u5e94\u8be5\u662f8\u3002\u4f46\u662f\u5f53\u4f60\u591a\u6b21\u8fd0\u884c\u4e0a\u8ff0\u7a0b\u5e8f\u65f6\uff0c\u4f60\u4f1a\u53d1\u73b0\u8ba1\u6570\u5668\u7684\u503c\u57286\u30017\u30018\u4e4b\u95f4\u53d8\u5316\u3002\u8fd9\u662f\u56e0\u4e3a\u5373\u4f7fcount++\u770b\u8d77\u6765\u662f\u4e00\u4e2a\u539f\u5b50\u64cd\u4f5c\uff0c\u5b9e\u9645\u4e0a\u5b83\u5e76\u4e0d\u662f\uff0c\u5bfc\u81f4\u6570\u636e\u51fa\u73b0\u9519\u8bef\u3002<\/p>\n
Java\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u6982\u5ff5<\/h3>\n
Java\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u662f\u6307\u4f7f\u6211\u4eec\u7684\u7a0b\u5e8f\u5728\u591a\u7ebf\u7a0b\u73af\u5883\u4e2d\u53ef\u4ee5\u5b89\u5168\u5730\u4f7f\u7528\u7684\u8fc7\u7a0b\uff0c\u6709\u591a\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u6211\u4eec\u7684\u7a0b\u5e8f\u7ebf\u7a0b\u5b89\u5168\u3002<\/p>\n
\n- \u540c\u6b65\u662fJava\u4e2d\u6700\u7b80\u5355\u4e14\u4f7f\u7528\u6700\u5e7f\u6cdb\u7684\u7ebf\u7a0b\u5b89\u5168\u5de5\u5177\u3002<\/li>\n
- \u4f7f\u7528java.util.concurrent.atomic\u5305\u4e2d\u7684\u539f\u5b50\u5305\u88c5\u7c7b\uff0c\u4f8b\u5982AtomicInteger\u3002<\/li>\n
- \u4f7f\u7528java.util.concurrent.locks\u5305\u4e2d\u7684\u9501\u3002<\/li>\n
- \u4f7f\u7528\u7ebf\u7a0b\u5b89\u5168\u7684\u96c6\u5408\u7c7b\uff0c\u53ef\u4ee5\u67e5\u770b\u5173\u4e8eConHashMap\u7528\u4e8e\u7ebf\u7a0b\u5b89\u5168\u7684\u6587\u7ae0\u3002<\/li>\n
- \u5728\u53d8\u91cf\u4e0a\u4f7f\u7528volatile\u5173\u952e\u5b57\uff0c\u4f7f\u6bcf\u4e2a\u7ebf\u7a0b\u4ece\u5185\u5b58\u4e2d\u8bfb\u53d6\u6570\u636e\uff0c\u800c\u4e0d\u662f\u4ece\u7ebf\u7a0b\u7f13\u5b58\u4e2d\u8bfb\u53d6\u3002<\/li>\n<\/ul>\n
Java\u540c\u6b65\u673a\u5236<\/h3>\n
\u8fd9\u662f\u6587\u7ae0\u300aJava\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51712\u90e8\u5206\uff09\u3002<\/p>\n
\u540c\u6b65\u662f\u6211\u4eec\u5b9e\u73b0\u7ebf\u7a0b\u5b89\u5168\u7684\u5de5\u5177\uff0cJVM\u4fdd\u8bc1\u540c\u6b65\u4ee3\u7801\u53ea\u4f1a\u88ab\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\u3002Java\u5173\u952e\u5b57synchronized\u7528\u4e8e\u521b\u5efa\u540c\u6b65\u4ee3\u7801\uff0c\u5728\u5185\u90e8\u5b83\u4f7f\u7528\u5bf9\u8c61\u6216\u7c7b\u7684\u9501\u6765\u786e\u4fdd\u53ea\u6709\u4e00\u4e2a\u7ebf\u7a0b\u6267\u884c\u540c\u6b65\u4ee3\u7801\u3002<\/p>\n
\n- Java\u540c\u6b65\u57fa\u4e8e\u8d44\u6e90\u7684\u9501\u5b9a\u548c\u89e3\u9501\u673a\u5236\u3002\u5728\u4efb\u4f55\u7ebf\u7a0b\u8fdb\u5165\u540c\u6b65\u4ee3\u7801\u4e4b\u524d\uff0c\u5fc5\u987b\u5148\u83b7\u53d6\u5bf9\u8c61\u7684\u9501\uff1b\u5f53\u4ee3\u7801\u6267\u884c\u7ed3\u675f\u65f6\uff0c\u5b83\u4f1a\u91ca\u653e\u8d44\u6e90\u9501\uff0c\u4ee5\u4fbf\u5176\u4ed6\u7ebf\u7a0b\u53ef\u4ee5\u9501\u5b9a\u8be5\u8d44\u6e90\u3002\u5728\u6b64\u671f\u95f4\uff0c\u5176\u4ed6\u7ebf\u7a0b\u5904\u4e8e\u7b49\u5f85\u72b6\u6001\uff0c\u4ee5\u9501\u5b9a\u540c\u6b65\u8d44\u6e90\u3002<\/li>\n
- \u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4e24\u79cd\u65b9\u5f0f\u4f7f\u7528synchronized\u5173\u952e\u5b57\uff0c\u4e00\u79cd\u662f\u4f7f\u6574\u4e2a\u65b9\u6cd5\u540c\u6b65\uff0c\u53e6\u4e00\u79cd\u662f\u521b\u5efa\u540c\u6b65\u5757\u3002<\/li>\n
- \u5f53\u4e00\u4e2a\u65b9\u6cd5\u88ab\u540c\u6b65\u65f6\uff0c\u5b83\u4f1a\u9501\u5b9a\u5bf9\u8c61\uff1b\u5982\u679c\u65b9\u6cd5\u662f\u9759\u6001\u7684\uff0c\u5b83\u4f1a\u9501\u5b9a\u7c7b\u3002\u56e0\u6b64\uff0c\u6700\u4f73\u5b9e\u8df5\u662f\u4f7f\u7528\u540c\u6b65\u5757\u6765\u4ec5\u9501\u5b9a\u9700\u8981\u540c\u6b65\u7684\u65b9\u6cd5\u90e8\u5206\u3002<\/li>\n
- \u521b\u5efa\u540c\u6b65\u5757\u65f6\uff0c\u6211\u4eec\u9700\u8981\u63d0\u4f9b\u5c06\u88ab\u83b7\u53d6\u9501\u7684\u8d44\u6e90\uff0c\u5b83\u53ef\u4ee5\u662fXYZ.class\u6216\u7c7b\u7684\u4efb\u4f55\u5bf9\u8c61\u5b57\u6bb5\u3002<\/li>\n
- synchronized(this)\u4f1a\u5728\u8fdb\u5165\u540c\u6b65\u5757\u4e4b\u524d\u9501\u5b9a\u5bf9\u8c61\u3002<\/li>\n
- \u4f60\u5e94\u8be5\u4f7f\u7528\u6700\u4f4e\u7ea7\u522b\u7684\u9501\u5b9a\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4e00\u4e2a\u7c7b\u4e2d\u6709\u591a\u4e2a\u540c\u6b65\u5757\uff0c\u5176\u4e2d\u4e00\u4e2a\u9501\u5b9a\u4e86\u5bf9\u8c61\uff0c\u90a3\u4e48\u5176\u4ed6\u540c\u6b65\u5757\u4e5f\u5c06\u65e0\u6cd5\u88ab\u5176\u4ed6\u7ebf\u7a0b\u6267\u884c\u3002\u5f53\u6211\u4eec\u9501\u5b9a\u4e00\u4e2a\u5bf9\u8c61\u65f6\uff0c\u5b83\u4f1a\u83b7\u53d6\u8be5\u5bf9\u8c61\u6240\u6709\u5b57\u6bb5\u7684\u9501\u3002<\/li>\n
- Java\u540c\u6b65\u4ee5\u6027\u80fd\u4e3a\u4ee3\u4ef7\u63d0\u4f9b\u6570\u636e\u5b8c\u6574\u6027\uff0c\u56e0\u6b64\u53ea\u6709\u5728\u7edd\u5bf9\u5fc5\u8981\u65f6\u624d\u5e94\u4f7f\u7528\u5b83\u3002<\/li>\n
- Java\u540c\u6b65\u4ec5\u5728\u540c\u4e00\u4e2aJVM\u4e2d\u6709\u6548\uff0c\u56e0\u6b64\u5982\u679c\u9700\u8981\u5728\u591a\u4e2aJVM\u73af\u5883\u4e2d\u9501\u5b9a\u67d0\u4e9b\u8d44\u6e90\uff0c\u5b83\u5c06\u4e0d\u8d77\u4f5c\u7528\uff0c\u4f60\u53ef\u80fd\u9700\u8981\u5bfb\u627e\u4e00\u4e9b\u5168\u5c40\u9501\u5b9a\u673a\u5236\u3002<\/li>\n
- Java\u540c\u6b65\u53ef\u80fd\u5bfc\u81f4\u6b7b\u9501\uff0c\u67e5\u770b\u8fd9\u7bc7\u5173\u4e8eJava\u6b7b\u9501\u53ca\u5176\u907f\u514d\u65b9\u6cd5\u7684\u6587\u7ae0\u3002<\/li>\n
- Java synchronized\u5173\u952e\u5b57\u4e0d\u80fd\u7528\u4e8e\u6784\u9020\u51fd\u6570\u548c\u53d8\u91cf\u3002<\/li>\n
- \u6700\u597d\u521b\u5efa\u4e00\u4e2a\u865a\u62df\u7684\u79c1\u6709\u5bf9\u8c61\u7528\u4e8e\u540c\u6b65\u5757\uff0c\u8fd9\u6837\u5b83\u7684\u5f15\u7528\u5c31\u4e0d\u80fd\u88ab\u4efb\u4f55\u5176\u4ed6\u4ee3\u7801\u66f4\u6539\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u6709\u4e00\u4e2a\u7528\u4e8e\u540c\u6b65\u7684\u5bf9\u8c61\u7684setter\u65b9\u6cd5\uff0c\u5b83\u7684\u5f15\u7528\u53ef\u80fd\u4f1a\u88ab\u5176\u4ed6\u4ee3\u7801\u66f4\u6539\uff0c\u5bfc\u81f4\u540c\u6b65\u5757\u7684\u5e76\u884c\u6267\u884c\u3002<\/li>\n
- \u6211\u4eec\u4e0d\u5e94\u8be5\u4f7f\u7528\u5e38\u91cf\u6c60\u4e2d\u7ef4\u62a4\u7684\u4efb\u4f55\u5bf9\u8c61\uff0c\u4f8b\u5982String\u4e0d\u5e94\u8be5\u7528\u4e8e\u540c\u6b65\uff0c\u56e0\u4e3a\u5982\u679c\u4efb\u4f55\u5176\u4ed6\u4ee3\u7801\u4e5f\u9501\u5b9a\u76f8\u540c\u7684String\uff0c\u5b83\u5c06\u5c1d\u8bd5\u83b7\u53d6String\u6c60\u4e2d\u76f8\u540c\u5f15\u7528\u5bf9\u8c61\u7684\u9501\uff0c\u5373\u4f7f\u4e24\u4e2a\u4ee3\u7801\u4e0d\u76f8\u5173\uff0c\u5b83\u4eec\u4e5f\u4f1a\u76f8\u4e92\u9501\u5b9a\u3002<\/li>\n<\/ul>\n
\u4ee5\u4e0b\u662f\u6211\u4eec\u9700\u8981\u5728\u4e0a\u8ff0\u7a0b\u5e8f\u4e2d\u8fdb\u884c\u7684\u4ee3\u7801\u66f4\u6539\uff0c\u4ee5\u4f7f\u5176\u5177\u5907\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/p>\n
\/\/\u7528\u4e8e\u540c\u6b65\u7684\u865a\u62df\u5bf9\u8c61\u53d8\u91cf\r\n private Object mutex=new Object();\r\n ...\r\n \/\/\u4f7f\u7528\u540c\u6b65\u5757\u6765\u540c\u6b65\u5730\u8bfb\u53d6\u3001\u9012\u589e\u548c\u66f4\u65b0count\u503c\r\n synchronized (mutex) {\r\n count++;\r\n }\r\n<\/code><\/pre>\n\u8ba9\u6211\u4eec\u770b\u4e00\u4e9b\u540c\u6b65\u7684\u4f8b\u5b50\uff0c\u4ee5\u53ca\u6211\u4eec\u53ef\u4ee5\u4ece\u4e2d\u5b66\u5230\u4ec0\u4e48\u3002<\/p>\n
public class MyObject {\r\n \r\n \/\/ \u9501\u5b9a\u5bf9\u8c61\u7684\u76d1\u89c6\u5668\r\n public synchronized void doSomething() { \r\n \/\/ ...\r\n }\r\n}\r\n \r\n\/\/ \u9ed1\u5ba2\u7684\u4ee3\u7801\r\nMyObject myObject = new MyObject();\r\nsynchronized (myObject) {\r\n while (true) {\r\n \/\/ \u65e0\u9650\u671f\u5ef6\u8fdfmyObject\r\n Thread.sleep(Integer.MAX_VALUE); \r\n }\r\n}\r\n<\/code><\/pre>\n\u8bf7\u6ce8\u610f\uff0c\u9ed1\u5ba2\u7684\u4ee3\u7801\u6b63\u8bd5\u56fe\u9501\u5b9amyObject\u5b9e\u4f8b\uff0c\u4e00\u65e6\u6210\u529f\u83b7\u5f97\u9501\uff0c\u5c31\u4e0d\u4f1a\u91ca\u653e\u5b83\uff0c\u5bfc\u81f4doSomething()\u65b9\u6cd5\u5728\u7b49\u5f85\u9501\u65f6\u88ab\u963b\u585e\uff0c\u8fd9\u4f1a\u5f15\u53d1\u7cfb\u7edf\u6b7b\u9501\u5e76\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u653b\u51fb\uff08DoS\uff09\u3002<\/p>\n
public class MyObject {\r\n public Object lock = new Object();\r\n \r\n public void doSomething() {\r\n synchronized (lock) {\r\n \/\/ ...\r\n }\r\n }\r\n}\r\n\r\n\/\/\u4e0d\u53d7\u4fe1\u4efb\u7684\u4ee3\u7801\r\n\r\nMyObject myObject = new MyObject();\r\n\/\/\u66f4\u6539lock\u5bf9\u8c61\u7684\u5f15\u7528\r\nmyObject.lock = new Object();\r\n<\/code><\/pre>\n\u8bf7\u6ce8\u610f\uff0c\u9501\u5b9a\u5bf9\u8c61\u662f\u516c\u5171\u7684\uff0c\u901a\u8fc7\u66f4\u6539\u5176\u5f15\u7528\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u591a\u4e2a\u7ebf\u7a0b\u4e2d\u5e76\u884c\u6267\u884c\u540c\u6b65\u5757\u3002\u5982\u679c\u60a8\u62e5\u6709\u79c1\u6709\u5bf9\u8c61\u4f46\u5177\u6709\u8bbe\u7f6e\u5668\u65b9\u6cd5\u6765\u66f4\u6539\u5176\u5f15\u7528\uff0c\u60c5\u51b5\u7c7b\u4f3c\u3002<\/p>\n
public class MyObject {\r\n \/\/\u9501\u5b9a\u7c7b\u5bf9\u8c61\u7684\u76d1\u89c6\u5668\r\n public static synchronized void doSomething() { \r\n \/\/ ...\r\n }\r\n}\r\n \r\n\/\/ \u9ed1\u5ba2\u7684\u4ee3\u7801\r\nsynchronized (MyObject.class) {\r\n while (true) {\r\n Thread.sleep(Integer.MAX_VALUE); \/\/ \u65e0\u9650\u671f\u5ef6\u8fdfMyObject\r\n }\r\n}\r\n<\/code><\/pre>\n\u8bf7\u6ce8\u610f\uff0c\u9ed1\u5ba2\u4ee3\u7801\u6b63\u5728\u9501\u5b9a\u73ed\u7ea7\u76d1\u89c6\u5668\u5e76\u4e14\u672a\u91ca\u653e\uff0c\u8fd9\u5c06\u5bfc\u81f4\u7cfb\u7edf\u51fa\u73b0\u6b7b\u9501\u548c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002\u4ee5\u4e0b\u662f\u53e6\u4e00\u4e2a\u4f8b\u5b50\uff0c\u591a\u4e2a\u7ebf\u7a0b\u6b63\u5728\u5904\u7406\u540c\u4e00\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u4e00\u65e6\u5904\u7406\u5b8c\u6210\uff0c\u4f1a\u5c06\u7ebf\u7a0b\u540d\u79f0\u9644\u52a0\u5230\u6570\u7ec4\u503c\u4e0a\u3002<\/p>\n
package com.Olivia.threads;\r\n\r\nimport java.util.Arrays;\r\n\r\npublic class SyncronizedMethod {\r\n\r\n public static void main(String[] args) throws InterruptedException {\r\n String[] arr = {\"1\",\"2\",\"3\",\"4\",\"5\",\"6\"};\r\n HashMapProcessor hmp = new HashMapProcessor(arr);\r\n Thread t1=new Thread(hmp, \"t1\");\r\n Thread t2=new Thread(hmp, \"t2\");\r\n Thread t3=new Thread(hmp, \"t3\");\r\n long start = System.currentTimeMillis();\r\n \/\/\u542f\u52a8\u6240\u6709\u7ebf\u7a0b\r\n t1.start();t2.start();t3.start();\r\n \/\/\u7b49\u5f85\u7ebf\u7a0b\u5b8c\u6210\r\n t1.join();t2.join();t3.join();\r\n System.out.println(\"\u8017\u65f6= \"+(System.currentTimeMillis()-start));\r\n \/\/\u73b0\u5728\u68c0\u67e5\u5171\u4eab\u53d8\u91cf\u7684\u503c\r\n System.out.println(Arrays.asList(hmp.getMap()));\r\n }\r\n\r\n}\r\n\r\nclass HashMapProcessor implements Runnable{\r\n \r\n private String[] strArr = null;\r\n \r\n public HashMapProcessor(String[] m){\r\n this.strArr=m;\r\n }\r\n \r\n public String[] getMap() {\r\n return strArr;\r\n }\r\n\r\n @Override\r\n public void run() {\r\n processArr(Thread.currentThread().getName());\r\n }\r\n\r\n private void processArr(String name) {\r\n for(int i=0; i < strArr.length; i++){\r\n \/\/\u5904\u7406\u6570\u636e\u5e76\u9644\u52a0\u7ebf\u7a0b\u540d\u79f0\r\n processSomething(i);\r\n addThreadName(i, name);\r\n }\r\n }\r\n \r\n private void addThreadName(int i, String name) {\r\n strArr[i] = strArr[i] +\":\"+name;\r\n }\r\n\r\n private void processSomething(int index) {\r\n \/\/ \u5904\u7406\u4e00\u4e9b\u4efb\u52a1\r\n try {\r\n Thread.sleep(index*1000);\r\n } catch (InterruptedException e) {\r\n e.printStackTrace();\r\n }\r\n }\r\n \r\n}\r\n<\/code><\/pre>\n\u5f53\u6211\u8fd0\u884c\u4e0a\u8ff0\u7a0b\u5e8f\u65f6\uff0c\u8fd9\u662f\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n
\u8017\u65f6= 15005\r\n[1:t2:t3, 2:t1, 3:t3, 4:t1:t3, 5:t2:t1, 6:t3]\r\n<\/code><\/pre>\n\u7531\u4e8e\u5171\u4eab\u6570\u636e\u548c\u7f3a\u4e4f\u540c\u6b65\uff0cString\u6570\u7ec4\u7684\u503c\u906d\u5230\u7834\u574f\u3002\u4ee5\u4e0b\u662f\u6211\u4eec\u5982\u4f55\u66f4\u6539addThreadName()\u65b9\u6cd5\uff0c\u4f7f\u6211\u4eec\u7684\u7a0b\u5e8f\u5177\u5907\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/p>\n
private Object lock = new Object();\r\n private void addThreadName(int i, String name) {\r\n synchronized(lock){\r\n strArr[i] = strArr[i] +\":\"+name;\r\n }\r\n }\r\n<\/code><\/pre>\n\u5728\u8fd9\u6b21\u66f4\u6539\u4e4b\u540e\uff0c\u6211\u4eec\u7684\u7a0b\u5e8f\u8fd0\u884c\u6b63\u5e38\uff0c\u4ee5\u4e0b\u662f\u7a0b\u5e8f\u7684\u6b63\u786e\u8f93\u51fa\u3002<\/p>\n
\u8017\u65f6= 15004\r\n[1:t1:t2:t3, 2:t2:t1:t3, 3:t2:t3:t1, 4:t3:t2:t1, 5:t2:t1:t3, 6:t2:t1:t3]\r\n<\/code><\/pre>\n\u5173\u4e8eJava\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u95ee\u9898\uff0c\u5c31\u5148\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\u3002\u5e0c\u671b\u4f60\u4e86\u89e3\u4e86\u7ebf\u7a0b\u5b89\u5168\u7f16\u7a0b\u548c\u4f7f\u7528synchronized\u5173\u952e\u5b57\u7684\u65b9\u6cd5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Java\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\uff08\u7b2c1\u90e8\u5206\/\u51712\u90e8\u5206\uff09 Java\u4e2d\u7684\u7ebf\u7a0b\u5b89\u5168\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u4e3b\u9898\u3002Java\u901a\u8fc7Java\u7ebf\u7a0b […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1314,1311,1312,1313,974],"class_list":{"0":"post-412","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","9":"tag-1312","10":"tag-1313","11":"tag-974"},"yoast_head":"\n
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