{"id":1164,"date":"2015-01-27T23:27:28","date_gmt":"2015-01-27T15:27:28","guid":{"rendered":"http:\/\/coderbee.net\/?p=1164"},"modified":"2015-01-29T21:06:50","modified_gmt":"2015-01-29T13:06:50","slug":"akka-%e6%96%87%e6%a1%a3%ef%bc%9a-actor-%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/coderbee.net\/index.php\/akka\/20150127\/1164","title":{"rendered":"Akka \u6587\u6863\uff1a Actor \u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\u7ffb\u8bd1\u81ea\uff1ahttp:\/\/doc.akka.io\/docs\/akka\/2.3.8\/general\/actors.html<\/a><\/p>\n

Actor \u662f\u4ec0\u4e48\uff1f<\/h1>\n

\u524d\u4e00\u7ae0\u8282\u5173\u4e8e Actor \u7cfb\u7edf<\/a> \u89e3\u91ca\u4e86 actors \u5982\u4f55\u7ec4\u6210\u5c42\u7ea7\uff0c\u4e14\u662f\u6784\u5efa\u5e94\u7528\u7684\u6700\u5c0f\u5355\u5143\u3002\u8fd9\u7ae0\u53ea\u5173\u6ce8\u8fd9\u6837\u7684 actor\uff0c\u89e3\u91ca\u4f60\u5728\u5b9e\u73b0\u5b83\u65f6\u4f1a\u9047\u5230\u7684\u6982\u5ff5\u3002\u66f4\u591a\u6df1\u5165\u7ec6\u8282\u7684\u53c2\u8003\u89c1 Actors\uff08Scala\uff09<\/a> \u548c Untyped Actors\uff08Java\uff09<\/a> \u3002<\/p>\n

\u4e00\u4e2aActor\u662f\u4e00\u4e2a\u5bb9\u5668\uff0c\u5b83\u5305\u542b\u4e86 \u72b6\u6001<\/a>\uff0c\u884c\u4e3a<\/a>\uff0c\u4e00\u4e2a \u90ae\u7bb1<\/a>\uff0c\u5b50Actors<\/a> \u548c\u4e00\u4e2a \u7763\u5bfc\u7b56\u7565<\/a>\u3002\u6240\u6709\u8fd9\u4e9b\u5c01\u88c5\u5728\u4e00\u4e2a Actor \u5f15\u7528<\/a> \u540e\u9762\u3002\u5f53 Actor \u7ec8\u6b62\u65f6\uff0c\u4f1a\u53d1\u751f \u8fd9\u4e2a<\/a>\u3002<\/p>\n

Actor \u5f15\u7528<\/h2>\n

\u4e00\u4e2a actor \u5bf9\u8c61\u9700\u8981\u4e0e\u5916\u754c\u9694\u79bb\u5f00\u624d\u80fd\u4ece actor \u6a21\u578b\u4e2d\u83b7\u76ca\u3002\u6240\u4ee5 actor \u662f\u4ee5 actor \u5f15\u7528\u7684\u5f62\u5f0f\u5c55\u73b0\u7ed9\u5916\u754c\u7684\uff0cactor \u5f15\u7528\u53ef\u4ee5\u88ab\u81ea\u7531\u7684\u65e0\u9650\u5236\u5730\u4f20\u6765\u4f20\u53bb\u3002\u5185\u90e8\u5bf9\u8c61\u548c\u5916\u90e8\u5bf9\u8c61\u7684\u8fd9\u79cd\u5212\u5206\u4f7f\u5f97\u6240\u6709\u60f3\u8981\u7684\u64cd\u4f5c\u80fd\u591f\u900f\u660e\uff1a\u91cd\u542f actor \u800c\u4e0d\u9700\u8981\u66f4\u65b0\u522b\u5904\u7684\u5f15\u7528\uff0c\u5c06\u5b9e\u9645 actor \u5bf9\u8c61\u653e\u7f6e\u5230\u8fdc\u7a0b\u4e3b\u673a\u4e0a\uff0c\u5411\u53e6\u5916\u4e00\u4e2a\u5b8c\u5168\u4e0d\u540c\u7684\u5e94\u7528\u7a0b\u5e8f\u7684 actors \u53d1\u9001\u6d88\u606f\u3002\u4f46\u6700\u91cd\u8981\u7684\u65b9\u9762\u662f\u4ece\u5916\u754c\u4e0d\u53ef\u80fd\u8bbf\u95ee\u5230 actor \u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\uff0c\u9664\u975e\u8fd9\u4e2a actor \u975e\u5e38\u4e0d\u660e\u667a\u5730\u5c06\u4fe1\u606f\uff08\u5185\u90e8\u72b6\u6001\uff09\u516c\u5e03\u51fa\u53bb\u3002<\/p>\n

<\/p>\n

<\/a><\/p>\n

\u72b6\u6001<\/h2>\n

Actor \u5bf9\u8c61\u901a\u5e38\u5305\u542b\u4e00\u4e9b\u53d8\u91cf\u6765\u53cd\u6620 actor \u6240\u5904\u7684\u53ef\u80fd\u72b6\u6001\u3002\u8fd9\u53ef\u80fd\u662f\u4e00\u4e2a\u660e\u786e\u7684\u72b6\u6001\u673a\uff08e.g. \u4f7f\u7528 FSM<\/a> \u6a21\u5757)\uff0c\u6216\u662f\u4e00\u4e2a\u8ba1\u6570\u5668\uff0c\u4e00\u7ec4\u76d1\u542c\u5668\uff0c\u5f85\u5904\u7406\u7684\u8bf7\u6c42\uff0c\u7b49\u7b49\u3002\u8fd9\u4e9b\u6570\u636e\u4f7f\u5f97 actor \u6709\u4ef7\u503c\uff0c\u5e76\u4e14\u5fc5\u987b\u5c06\u8fd9\u4e9b\u6570\u636e\u4fdd\u62a4\u8d77\u6765\u4e0d\u88ab\u5176\u5b83\u7684 actor \u6240\u7834\u574f\u3002\u597d\u6d88\u606f\u662f\u5728\u6982\u5ff5\u4e0a\u6bcf\u4e2a Akka actor \u90fd\u6709\u5b83\u81ea\u5df1\u7684\u8f7b\u91cf\u7ebf\u7a0b\uff0c\u8fd9\u4e2a\u7ebf\u7a0b\u662f\u5b8c\u5168\u4e0e\u7cfb\u7edf\u5176\u5b83\u90e8\u5206\u9694\u79bb\u7684\u3002\u8fd9\u610f\u5473\u7740\u4f60\u4e0d\u9700\u8981\u4f7f\u7528\u9501\u6765\u8fdb\u540c\u6b65\u8bbf\u95ee\uff0c\u4f60\u53ea\u9700\u8981\u5199\u4f60\u7684 actor \u4ee3\u7801\uff0c\u5b8c\u5168\u4e0d\u9700\u8981\u5173\u5fc3\u5e76\u53d1\u95ee\u9898\u3002<\/p>\n

\u5728\u5e55\u540e\uff0cAkka \u4f1a\u5728\u4e00\u7ec4\u5b9e\u9645\u7ebf\u7a0b\u4e0a\u8fd0\u884c\u4e00\u7ec4 Actor\uff0c\u901a\u5e38\u662f\u5f88\u591a actor \u5171\u4eab\u4e00\u4e2a\u7ebf\u7a0b\uff0c\u5bf9\u67d0\u4e00\u4e2a actor \u7684\u8c03\u7528\u53ef\u80fd\u4f1a\u5728\u4e0d\u540c\u7684\u7ebf\u7a0b\u4e0a\u8fdb\u884c\u5904\u7406\u3002Akka \u4fdd\u8bc1\u8fd9\u4e2a\u5b9e\u73b0\u7ec6\u8282\u4e0d\u5f71\u54cd\u5904\u7406 actor \u72b6\u6001\u7684\u5355\u7ebf\u7a0b\u6027\u3002<\/p>\n

\u7531\u4e8e\u5185\u90e8\u72b6\u6001\u5bf9\u4e8e actor \u7684\u64cd\u4f5c\u662f\u81f3\u5173\u91cd\u8981\u7684\uff0c\u6240\u4ee5\u72b6\u6001\u4e0d\u4e00\u81f4\u662f\u81f4\u547d\u7684\u3002\u5f53 actor \u5931\u8d25\u5e76\u7531\u5176\u7763\u5bfc\u8005\u91cd\u65b0\u542f\u52a8\uff0c\u72b6\u6001\u4f1a\u8fdb\u884c\u91cd\u65b0\u521b\u5efa\uff0c\u5c31\u8c61\u7b2c\u4e00\u6b21\u521b\u5efa\u8fd9\u4e2a actor \u4e00\u6837\u3002\u8fd9\u662f\u4e3a\u4e86\u5b9e\u73b0\u7cfb\u7edf\u7684\u201c\u81ea\u6108\u5408\u201d\u3002<\/p>\n

\u89c6\u60c5\u51b5\uff0c\u4e00\u4e2a actor \u7684\u72b6\u6001\u53ef\u4ee5\u81ea\u52a8\u6062\u590d\u5230\u91cd\u542f\u524d\uff0c\u901a\u8fc7\u6301\u4e45\u5316\u63a5\u6536\u5230\u7684\u6d88\u606f\u5e76\u5728\u91cd\u542f\u540e\u91cd\u6f14\u8fd9\u4e9b\u6d88\u606f\uff08\u89c1 \u6301\u4e45\u5316<\/a>\uff09\u3002<\/p>\n

<\/a><\/p>\n

\u884c\u4e3a<\/h3>\n

\u6bcf\u6b21\u5f53\u4e00\u4e2a\u6d88\u606f\u88ab\u5904\u7406\u65f6\uff0c\u6d88\u606f\u4f1a\u4e0e actor \u7684\u5f53\u524d\u7684\u884c\u4e3a\u8fdb\u884c\u5339\u914d\u3002\u884c\u4e3a\u662f\u4e00\u4e2a\u51fd\u6570\uff0c\u5b83\u5b9a\u4e49\u4e86\u5904\u7406\u5f53\u524d\u6d88\u606f\u6240\u8981\u91c7\u53d6\u7684\u52a8\u4f5c\uff0c\u5982\u679c\u5ba2\u6237\u7aef\u88ab\u6388\u6743\u4e86\u5219\u53ef\u4ee5\u8f6c\u53d1\u8bf7\u6c42\uff0c\u5426\u5219\u62d2\u7edd\u3002\u884c\u4e3a\u53ef\u80fd\u968f\u65f6\u95f4\u800c\u6539\u53d8\u3002\u56e0\u4e3a\u4e0d\u540c\u7684\u5ba2\u6237\u7aef\u968f\u65f6\u95f4\u83b7\u5f97\u4e0d\u540c\u7684\u6388\u6743\uff0c\u6216\u56e0\u4e3a actor \u53ef\u80fd\u8fdb\u5165\u201c\u975e\u670d\u52a1\u72b6\u6001\u201d\u6a21\u5f0f\uff0c\u7a0d\u540e\u518d\u56de\u6765\u3002\u8fd9\u4e9b\u53d8\u5316\u8981\u4e48\u901a\u8fc7\u5c06\u5b83\u4eec\u653e\u8fdb\u4ece\u884c\u4e3a\u903b\u8f91\u4e2d\u8bfb\u53d6\u7684\u72b6\u6001\u53d8\u91cf\u4e2d\u5b9e\u73b0\uff0c\u8981\u4e48\u51fd\u6570\u672c\u8eab\u5728\u8fd0\u884c\u65f6\u88ab\u66ff\u6362\u51fa\u6765\uff0c\u89c1 become<\/a> \u548c unbecome<\/a> \u64cd\u4f5c\u3002\u4f46\u662f actor \u5bf9\u8c61\u5728\u521b\u5efa\u65f6\u6240\u5b9a\u4e49\u7684\u521d\u59cb\u884c\u4e3a\u662f\u7279\u6b8a\u7684\uff0c\u56e0\u4e3a\u5f53 actor \u91cd\u542f\u65f6\u4f1a\u6062\u590d\u4e3a\u8fd9\u4e2a\u521d\u59cb\u884c\u4e3a\u3002<\/p>\n

<\/a><\/p>\n

\u90ae\u7bb1<\/h2>\n

Actor \u7684\u7528\u9014\u662f\u5904\u7406\u6d88\u606f\uff0c\u8fd9\u4e9b\u6d88\u606f\u662f\u4ece\u5176\u5b83\u7684 actors\uff08\u6216\u8005\u4ece actor \u7cfb\u7edf\u5916\u90e8\uff09\u53d1\u9001\u8fc7\u6765\u7684\u3002\u8fde\u63a5\u53d1\u9001\u8005\u4e0e\u63a5\u6536\u8005\u7684\u7ebd\u5e26\u662f actor \u7684\u90ae\u7bb1\uff1a\u6bcf\u4e2a actor \u6709\u4e14\u4ec5\u6709\u4e00\u4e2a\u90ae\u7bb1\uff0c\u6240\u6709\u7684\u53d1\u6765\u7684\u6d88\u606f\u90fd\u5728\u90ae\u7bb1\u91cc\u6392\u961f\u3002\u6392\u961f\u6309\u7167\u53d1\u9001\u64cd\u4f5c\u7684\u65f6\u95f4\u987a\u5e8f\u6765\u8fdb\u884c\uff0c\u8fd9\u610f\u5473\u7740\u4ece\u4e0d\u540c\u7684 actor \u53d1\u6765\u7684\u6d88\u606f\u5728\u8fd0\u884c\u65f6\u6ca1\u6709\u4e00\u4e2a\u56fa\u5b9a\u7684\u987a\u5e8f\uff0c\u8fd9\u662f\u7531\u4e8e actor \u5206\u5e03\u5728\u4e0d\u540c\u7684\u7ebf\u7a0b\u4e2d\u3002\u4ece\u53e6\u4e00\u4e2a\u89d2\u5ea6\u8bb2\uff0c\u4ece\u540c\u4e00\u4e2a actor \u53d1\u9001\u591a\u4e2a\u6d88\u606f\u5230\u76f8\u540c\u7684 actor\uff0c\u5219\u6d88\u606f\u4f1a\u6309\u53d1\u9001\u7684\u987a\u5e8f\u6392\u961f\u3002<\/p>\n

\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u90ae\u7bb1\u5b9e\u73b0\u4f9b\u9009\u62e9\uff0c\u7f3a\u7701\u7684\u662f FIFO\uff1aactor \u5904\u7406\u6d88\u606f\u7684\u987a\u5e8f\u4e0e\u6d88\u606f\u5165\u961f\u5217\u7684\u987a\u5e8f\u4e00\u81f4\u3002\u8fd9\u901a\u5e38\u662f\u4e00\u4e2a\u597d\u7684\u9009\u62e9\uff0c\u4f46\u662f\u5e94\u7528\u53ef\u80fd\u9700\u8981\u5bf9\u67d0\u4e9b\u6d88\u606f\u8fdb\u884c\u4f18\u5148\u5904\u7406\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u6709\u4f18\u5148\u6b21\u5e8f\u7684\u90ae\u7bb1\u6765\u6839\u636e\u6d88\u606f\u4f18\u5148\u7ea7\u5c06\u6d88\u606f\u653e\u5728\u67d0\u4e2a\u6307\u5b9a\u7684\u4f4d\u7f6e\uff0c\u751a\u81f3\u53ef\u80fd\u662f\u961f\u5217\u5934\uff0c\u800c\u4e0d\u662f\u961f\u5217\u672b\u5c3e\u3002\u5982\u679c\u4f7f\u7528\u8fd9\u6837\u7684\u961f\u5217\uff0c\u6d88\u606f\u7684\u5904\u7406\u987a\u5e8f\u662f\u7531\u961f\u5217\u7684\u7b97\u6cd5\u51b3\u5b9a\u7684\uff0c\u901a\u5e38\u4e0d\u662f FIFO\u3002<\/p>\n

Akka \u4e0e\u5176\u5b83 actor \u6a21\u578b\u5b9e\u73b0\u7684\u4e00\u4e2a\u91cd\u8981\u5dee\u522b\u5728\u4e8e\u5f53\u524d\u7684\u884c\u4e3a\u5fc5\u987b\u5904\u7406\u4e0b\u4e00\u4e2a\u4ece\u961f\u5217\u4e2d\u53d6\u51fa\u7684\u6d88\u606f\uff0cAkka \u4e0d\u4f1a\u53bb\u626b\u63cf\u90ae\u7bb1\u6765\u627e\u5230\u4e0b\u4e00\u4e2a\u5339\u914d\u7684\u6d88\u606f\u3002\u65e0\u6cd5\u5904\u7406\u67d0\u4e2a\u6d88\u606f\u901a\u5e38\u662f\u4f5c\u4e3a\u5931\u8d25\u60c5\u51b5\u8fdb\u884c\u5904\u7406\uff0c\u9664\u975e\u8986\u76d6\u4e86\u8fd9\u4e2a\u884c\u4e3a\u3002<\/p>\n

<\/a><\/p>\n

\u5b50 Actor<\/h3>\n

\u6bcf\u4e2a actor \u90fd\u662f\u4e00\u4e2a\u6f5c\u5728\u7684\u7763\u5bfc\u8005\uff1a\u5982\u679c\u5b83\u521b\u5efa\u4e86\u5b50 actor \u6765\u59d4\u6258\u5904\u7406\u5b50\u4efb\u52a1\uff0c\u5b83\u4f1a\u81ea\u52a8\u5730\u7763\u5bfc\u5b83\u4eec\u3002\u5b50 actor \u5217\u8868\u7ef4\u62a4\u5728 actor \u7684\u4e0a\u4e0b\u6587\u4e2d\uff0cactor \u53ef\u4ee5\u8bbf\u95ee\u5b83\u3002\u5bf9\u5217\u8868\u7684\u66f4\u6539\u662f\u901a\u8fc7\u521b\u5efa context.actorOf(...)<\/code> \u6216\u8005\u505c\u6b62 context.stop(child)<\/code> \u5b50 actor \u6765\u5b9e\u73b0\uff0c\u5e76\u4e14\u8fd9\u4e9b\u66f4\u6539\u4f1a\u7acb\u523b\u751f\u6548\u3002\u5b9e\u9645\u7684\u521b\u5efa\u548c\u505c\u6b62\u64cd\u4f5c\u5728\u5e55\u540e\u4ee5\u5f02\u6b65\u7684\u65b9\u5f0f\u5b8c\u6210\uff0c\u8fd9\u6837\u5b83\u4eec\u5c31\u4e0d\u4f1a\u201c\u963b\u585e\u201d\u5176\u7763\u5bfc\u8005\u3002<\/p>\n

<\/a><\/p>\n

\u7763\u5bfc\u7b56\u7565<\/h2>\n

Actor\u7684\u6700\u540e\u4e00\u90e8\u5206\u662f\u5b83\u7528\u6765\u5904\u7406\u5176\u5b50 actor \u9519\u8bef\u72b6\u51b5\u7684\u673a\u5236\u3002\u9519\u8bef\u5904\u7406\u662f\u7531 Akka \u900f\u660e\u5730\u5b8c\u6210\uff0c\u5c06 “\u7763\u5bfc\u4e0e\u76d1\u63a7<\/a>” \u4e2d\u6240\u63cf\u8ff0\u7684\u7b56\u7565\u4e2d\u7684\u4e00\u4e2a\u5e94\u7528\u4e8e\u6bcf\u4e2a\u51fa\u73b0\u7684\u5931\u8d25\u3002\u7531\u4e8e\u8fd9\u4e2a\u7b56\u7565\u662f actor \u7cfb\u7edf\u7ec4\u7ec7\u7ed3\u6784\u7684\u57fa\u7840\uff0c\u6240\u4ee5\u4e00\u65e6 actor \u88ab\u521b\u5efa\u4e86\u5b83\u5c31\u4e0d\u80fd\u88ab\u4fee\u6539\u3002<\/p>\n

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\u5f53 Actor \u7ec8\u6b62\u65f6<\/h3>\n

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\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u5fae\u4fe1\u516c\u4f17\u53f7: coderbee\u7b14\u8bb0<\/strong>\uff0c\u53ef\u4ee5\u66f4\u53ca\u65f6\u56de\u590d\u4f60\u7684\u8ba8\u8bba\u3002<\/p>\n

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