{"id":16160,"date":"2025-04-18T22:42:04","date_gmt":"2025-04-18T14:42:04","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/16160.html"},"modified":"2025-04-18T22:42:04","modified_gmt":"2025-04-18T14:42:04","slug":"erlang-otp%e5%ae%9e%e6%88%98%ef%bc%9a%e6%9e%84%e5%bb%ba%e9%80%9a%e7%94%a8%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/16160.html","title":{"rendered":"Erlang OTP\u5b9e\u6218\uff1a\u6784\u5efa\u901a\u7528\u670d\u52a1\u5668"},"content":{"rendered":"<h2> Erlang OTP\u5b9e\u6218&#xff1a;\u6784\u5efa\u901a\u7528\u670d\u52a1\u5668 <\/h2>\n<h3> \u80cc\u666f\u7b80\u4ecb <\/h3>\n<p> Erlang\u662f\u4e00\u79cd\u9762\u5411\u5e76\u53d1\u7684\u7f16\u7a0b\u8bed\u8a00&#xff0c;\u5b83\u7684\u5e76\u53d1\u6a21\u578b\u548c\u9519\u8bef\u5904\u7406\u673a\u5236\u4e0e\u4f20\u7edf\u8bed\u8a00\u622a\u7136\u4e0d\u540c\u3002Open Telecom Platform (OTP) \u662f\u5efa\u7acb\u5728Erlang\u4e4b\u4e0a\u7684\u4e00\u4e2a\u6846\u67b6&#xff0c;\u7528\u4e8e\u6784\u5efa\u53ef\u6269\u5c55\u3001\u5bb9\u9519\u7684\u5e76\u53d1\u7cfb\u7edf\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8OTP\u4e2d\u7684gen_server\u884c\u4e3a&#xff0c;\u5e76\u901a\u8fc7\u5b9e\u4f8b\u6559\u5b66\u7684\u65b9\u5f0f&#xff0c;\u9010\u6b65\u5f15\u5bfc\u8bfb\u8005\u7406\u89e3gen_server\u7684\u6784\u5efa\u539f\u7406\u3002 <\/p>\n<h4> \u4ece\u7b80\u5355\u670d\u52a1\u5668\u5230gen_server <\/h4>\n<p> \u6587\u7ae0\u9996\u5148\u4ecb\u7ecd\u4e86\u4e00\u4e2a\u7b80\u5355\u7684Erlang\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u7a0b\u5e8f&#xff0c;\u968f\u540e\u9010\u6b65\u5c06\u8fd9\u4e2a\u7a0b\u5e8f\u901a\u7528\u5316&#xff0c;\u5e76\u6700\u7ec8\u8f6c\u5411\u5b9e\u9645\u7684gen_server\u6a21\u5757\u4ee3\u7801\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u4e0d\u4ec5\u5e2e\u52a9\u8bfb\u8005\u7406\u89e3gen_server\u7684\u5de5\u4f5c\u539f\u7406&#xff0c;\u8fd8\u63ed\u793a\u4e86\u6784\u5efa\u62bd\u8c61\u7684\u91cd\u8981\u6027\u3002 <\/p>\n<h5> \u670d\u52a1\u56681&#xff1a;\u57fa\u7840\u670d\u52a1\u5668 <\/h5>\n<p> server1\u662f\u672c\u7ae0\u7684\u7b2c\u4e00\u4e2a\u670d\u52a1\u5668\u6a21\u578b&#xff0c;\u5b83\u662f\u4e00\u4e2a\u53ef\u4ee5\u53c2\u6570\u5316\u56de\u8c03\u6a21\u5757\u7684\u8f7b\u91cf\u7ea7\u670d\u52a1\u5668\u3002\u901a\u8fc7\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50&#xff0c;\u6211\u4eec\u5c55\u793a\u4e86\u5982\u4f55\u7f16\u5199\u4e00\u4e2acallback&#xff0c;\u5e76\u901a\u8fc7server1\u6765\u8fd0\u884c\u3002\u8fd9\u4e2a\u4f8b\u5b50\u8bc1\u660e\u4e86\u6211\u4eec\u53ef\u4ee5\u5728\u4e0d\u4e86\u89e3\u5e95\u5c42\u5e76\u53d1\u6a21\u578b\u7684\u60c5\u51b5\u4e0b\u7f16\u5199\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6a21\u578b\u3002 <\/p>\n<h5> \u670d\u52a1\u56682&#xff1a;\u5177\u6709\u4e8b\u52a1\u5904\u7406\u7684\u670d\u52a1\u5668 <\/h5>\n<p> server2\u5728server1\u7684\u57fa\u7840\u4e0a\u589e\u52a0\u4e86\u4e8b\u52a1\u5904\u7406\u7684\u7279\u6027&#xff0c;\u5982\u679c\u5904\u7406\u51fd\u6570\u4e2d\u5f15\u53d1\u5f02\u5e38&#xff0c;\u670d\u52a1\u5668\u5c06\u4e0e\u539f\u59cb\u72b6\u6001\u5faa\u73af\u3002\u8fd9\u79cd\u8bbe\u8ba1\u5141\u8bb8\u670d\u52a1\u5668\u5728\u5904\u7406\u51fd\u6570\u5931\u8d25\u65f6&#xff0c;\u53ea\u5f71\u54cd\u53d1\u9001\u6d88\u606f\u7684\u5ba2\u6237\u7aef&#xff0c;\u800c\u4e0d\u5f71\u54cd\u5176\u4ed6\u5ba2\u6237\u7aef\u3002 <\/p>\n<h5> \u670d\u52a1\u56683&#xff1a;\u5177\u5907\u70ed\u4ee3\u7801\u4ea4\u6362\u529f\u80fd\u7684\u670d\u52a1\u5668 <\/h5>\n<p> \u5728server3\u4e2d&#xff0c;\u6211\u4eec\u5f15\u5165\u4e86\u70ed\u4ee3\u7801\u4ea4\u6362\u7684\u6982\u5ff5\u3002\u8fd9\u610f\u5473\u7740\u670d\u52a1\u5668\u53ef\u4ee5\u52a8\u6001\u5730\u52a0\u8f7d\u65b0\u7684\u4ee3\u7801\u6a21\u5757&#xff0c;\u800c\u4e0d\u5f71\u54cd\u5f53\u524d\u4f1a\u8bdd\u3002\u8fd9\u79cd\u7279\u6027\u5bf9\u4e8e\u9700\u8981\u6301\u7eed\u8fd0\u884c\u7684\u670d\u52a1\u6765\u8bf4\u975e\u5e38\u6709\u7528&#xff0c;\u56e0\u4e3a\u5b83\u5141\u8bb8\u5728\u4e0d\u505c\u673a\u7684\u60c5\u51b5\u4e0b\u8fdb\u884c\u8f6f\u4ef6\u5347\u7ea7\u3002 <\/p>\n<h5> \u670d\u52a1\u56684&#xff1a;\u4e8b\u52a1\u5904\u7406\u548c\u70ed\u4ee3\u7801\u4ea4\u6362 <\/h5>\n<p> server4\u7ed3\u5408\u4e86\u4e8b\u52a1\u5904\u7406\u548c\u70ed\u4ee3\u7801\u4ea4\u6362\u7684\u7279\u6027&#xff0c;\u63d0\u4f9b\u4e86\u66f4\u52a0\u590d\u6742\u548c\u5f3a\u5927\u7684\u670d\u52a1\u5668\u884c\u4e3a\u3002\u8fd9\u79cd\u670d\u52a1\u5668\u80fd\u591f\u5904\u7406\u4e8b\u52a1\u5e76\u652f\u6301\u70ed\u4ee3\u7801\u5347\u7ea7&#xff0c;\u4f7f\u5176\u6210\u4e3a\u6784\u5efa\u590d\u6742\u7cfb\u7edf\u4e0d\u53ef\u6216\u7f3a\u7684\u5de5\u5177\u3002 <\/p>\n<h5> \u670d\u52a1\u56685&#xff1a;\u66f4\u591a\u4e50\u8da3 <\/h5>\n<p> server5\u5c55\u793a\u4e86\u5982\u4f55\u521b\u5efa\u4e00\u4e2a\u80fd\u591f\u6839\u636e\u9700\u8981\u53d8\u4e3a\u4e0d\u540c\u7c7b\u578b\u7684\u670d\u52a1\u5668\u3002\u8fd9\u79cd\u52a8\u6001\u53d8\u5316\u7684\u80fd\u529b\u4e3aErlang\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u7075\u6d3b\u6027\u3002 <\/p>\n<h3> \u603b\u7ed3\u4e0e\u542f\u53d1 <\/h3>\n<p> \u901a\u8fc7\u672c\u7ae0\u7684\u5b66\u4e60&#xff0c;\u6211\u4eec\u53ef\u4ee5\u770b\u5230OTP\u6846\u67b6\u5982\u4f55\u901a\u8fc7gen_server\u7b49\u884c\u4e3a\u7b80\u5316\u5e76\u53d1\u7f16\u7a0b\u7684\u590d\u6742\u6027\u3002\u7406\u89e3\u8fd9\u4e9b\u901a\u7528\u884c\u4e3a\u80fd\u591f\u5e2e\u52a9\u6211\u4eec\u6784\u5efa\u66f4\u52a0\u53ef\u9760\u548c\u53ef\u7ef4\u62a4\u7684\u5e76\u53d1\u7cfb\u7edf\u3002\u6b64\u5916&#xff0c;\u70ed\u4ee3\u7801\u4ea4\u6362\u548c\u4e8b\u52a1\u5904\u7406\u7b49\u9ad8\u7ea7\u7279\u6027\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u5de5\u5177&#xff0c;\u4ee5\u9002\u5e94\u7cfb\u7edf\u8fd0\u884c\u65f6\u7684\u9700\u6c42\u53d8\u5316\u3002 <\/p>\n<p> \u8bfb\u5b8c\u672c\u7ae0&#xff0c;\u4f60\u4e0d\u4ec5\u4f1a\u660e\u767d\u5982\u4f55\u4f7f\u7528OTP\u4e2d\u7684gen_server\u884c\u4e3a&#xff0c;\u8fd8\u4f1a\u4e86\u89e3\u5230\u5982\u4f55\u6784\u5efa\u81ea\u5df1\u7684\u62bd\u8c61&#xff0c;\u4ece\u800c\u8bbe\u8ba1\u51fa\u66f4\u52a0\u7075\u6d3b\u548c\u5f3a\u5927\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\u8fd9\u4e9b\u77e5\u8bc6\u5bf9\u4e8e\u4efb\u4f55\u5e0c\u671b\u6df1\u5165\u5b66\u4e60\u5e76\u53d1\u548c\u5206\u5e03\u5f0f\u7cfb\u7edf\u8bbe\u8ba1\u7684\u5f00\u53d1\u8005\u6765\u8bf4\u90fd\u662f\u5b9d\u8d35\u7684\u8d22\u5bcc\u3002 <\/p>\n<h3> \u5173\u952e\u8bcd <\/h3>\n<p> Erlang, OTP, gen_server, \u70ed\u4ee3\u7801\u4ea4\u6362, \u4e8b\u52a1\u8bed\u4e49 <\/p>\n<h3> \u535a\u5ba2\u6b63\u6587 <\/h3>\n<p> \u5728Erlang\u7f16\u7a0b\u8bed\u8a00\u7684\u4e16\u754c\u91cc&#xff0c;OTP\u662f\u4e00\u4e2a\u4e0d\u53ef\u6216\u7f3a\u7684\u6846\u67b6&#xff0c;\u5b83\u63d0\u4f9b\u4e86\u4e00\u7ec4\u5de5\u5177\u548c\u5e93&#xff0c;\u7528\u4e8e\u6784\u5efa\u53ef\u6269\u5c55\u7684\u5e76\u53d1\u7cfb\u7edf\u3002\u5728\u672c\u6587\u4e2d&#xff0c;\u6211\u4eec\u5c06\u6df1\u5165\u4e86\u89e3OTP\u7cfb\u7edf\u4e2d\u7684\u4e00\u4e2a\u5173\u952e\u7ec4\u4ef6\u2014\u2014gen_server\u884c\u4e3a&#xff0c;\u901a\u8fc7\u5b9e\u9645\u7684\u4ee3\u7801\u793a\u4f8b&#xff0c;\u9010\u6b65\u5f15\u5bfc\u8bfb\u8005\u638c\u63e1\u5176\u80cc\u540e\u7684\u539f\u7406\u548c\u9ad8\u7ea7\u7279\u6027\u3002 <\/p>\n<h4> \u4ece\u7b80\u5355\u670d\u52a1\u5668\u5230gen_server\u7684\u6f14\u5316 <\/h4>\n<p> \u5728\u6784\u5efa\u901a\u7528\u670d\u52a1\u5668\u7684\u8def\u4e0a&#xff0c;\u6211\u4eec\u9996\u5148\u521b\u5efa\u4e86\u4e00\u4e2a\u6781\u5176\u7b80\u5355\u7684\u670d\u52a1\u5668&#xff0c;\u79f0\u4e3aserver1\u3002\u8fd9\u4e2a\u670d\u52a1\u5668\u7684\u4ee3\u7801\u975e\u5e38\u7b80\u6d01&#xff0c;\u4f46\u5374\u5305\u542b\u4e86\u670d\u52a1\u5668\u7684\u57fa\u672c\u7ed3\u6784\u3002\u901a\u8fc7server1&#xff0c;\u6211\u4eec\u5f15\u5165\u4e86\u56de\u8c03\u6a21\u5757\u7684\u6982\u5ff5&#xff0c;\u5e76\u5c55\u793a\u4e86\u5982\u4f55\u901a\u8fc7\u7b80\u5355\u7684Erlang\u7a0b\u5e8f\u5b9e\u73b0\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u901a\u4fe1\u3002 <\/p>\n<p>start(Name, Mod) -&gt;<br \/>\n    register(Name, spawn(fun() -&gt; loop(Name, Mod, Mod:init()) end)).<\/p>\n<p>rpc(Name, Request) -&gt;<br \/>\n    Name ! {self(), Request},<br \/>\n    receive<br \/>\n        {Name, Response} -&gt; Response<br \/>\n    end.<\/p>\n<p>loop(Name, Mod, State) -&gt;<br \/>\n    receive<br \/>\n        {From, Request} -&gt;<br \/>\n            {Response, State1} &#061; Mod:handle(Request, State),<br \/>\n            From ! {Name, Response},<br \/>\n            loop(Name, Mod, State1)<br \/>\n    end.<\/p>\n<p> \u901a\u8fc7server1&#xff0c;\u6211\u4eec\u80fd\u591f\u7406\u89e3\u56de\u8c03\u6a21\u5757\u662f\u5982\u4f55\u88ab\u670d\u52a1\u5668\u6846\u67b6\u8c03\u7528&#xff0c;\u5e76\u4e14\u80fd\u591f\u5904\u7406\u5ba2\u6237\u7aef\u8bf7\u6c42\u7684\u3002\u6211\u4eec\u8fd8\u53ef\u4ee5\u770b\u5230&#xff0c;\u56de\u8c03\u6a21\u5757\u4e2d\u6ca1\u6709\u5305\u542b\u4efb\u4f55\u5e76\u53d1\u76f8\u5173\u7684\u4ee3\u7801&#xff0c;\u8fd9\u4f7f\u5f97\u7f16\u5199\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6a21\u578b\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u3002 <\/p>\n<h4> server2&#xff1a;\u6dfb\u52a0\u4e8b\u52a1\u5904\u7406 <\/h4>\n<p> \u5728server1\u7684\u57fa\u7840\u4e0a&#xff0c;\u6211\u4eec\u8fdb\u4e00\u6b65\u6784\u5efa\u4e86server2&#xff0c;\u5b83\u5728\u5904\u7406\u8bf7\u6c42\u65f6\u589e\u52a0\u4e86\u4e8b\u52a1\u5904\u7406\u7684\u7279\u6027\u3002\u5982\u679c\u5904\u7406\u51fd\u6570\u4e2d\u51fa\u73b0\u5f02\u5e38&#xff0c;\u670d\u52a1\u5668\u5c06\u901a\u8fc7\u539f\u59cb\u72b6\u6001\u7ee7\u7eed\u5faa\u73af&#xff0c;\u786e\u4fdd\u5373\u4f7f\u5728\u5f02\u5e38\u60c5\u51b5\u4e0b\u4e5f\u80fd\u4fdd\u6301\u72b6\u6001\u7684\u4e00\u81f4\u6027\u3002 <\/p>\n<h4> server3&#xff1a;\u5f15\u5165\u70ed\u4ee3\u7801\u4ea4\u6362 <\/h4>\n<p> 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