\u4eca\u5929\u7ec8\u4e8e\u7406\u89e3\u4e86gen_server\u884c\u4e3a\u6a21\u5f0f\u3002<\/p>\n
\u8fd9\u91cc\u653e\u4e00\u4e2a\u6a21\u7248\uff0c\u4ee5\u65b9\u4fbf\u81ea\u5df1\u4f7f\u7528:<\/p>\n
-module(test8).\r\n\r\n-behaviour(gen_server).\r\n\r\n-export([start_link\/0,stop_link\/0]).\r\n\r\n-export([init\/1,handle_call\/3,handle_cast\/2,handle_info\/2,terminate\/2,code_change\/3]).\r\n\r\n-define(SERVER,?MODULE).\r\n\r\n%% \u4e0d\u77e5\u9053\u8fd9\u4e2astate\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\r\n-record(state,{}).\r\n%% \u7ed9\u5916\u9762\u8c03\u7528\u7684\u3002\r\n\r\n%%% ----------------------------------------------\r\n%%% \u516c\u5f00\u7684API\r\n%%% \r\n%%% ----------------------------------------------\r\n\r\nstart_link()->\r\n gen_server:start_link({local,?SERVER},?MODULE,[],[]).\r\nstop_link()->\r\n gen_server:cast(?SERVER,stop).\r\n\r\n%%% ---------------------------------------------\r\n%%% \u79c1\u6709\u51fd\u6570\r\n%%% ---------------------------------------------\r\n\r\n%%% -------------------------------------------\r\n%%% \u4ee5\u4e0b\u662f\u56de\u8c03\u51fd\u6570\r\n%%% -------------------------------------------\r\n\r\n%% Result = {ok,State} | {ok,State,Timeout} | {ok,State,hibernate}\r\n%% | {stop,Reason} | ignore\r\n%% \u8fd9\u91cc\u8bbe\u7f6etimeout\u4e3a0\uff0c\u6839\u636e<<erlang\u5e76\u53d1\u7f16\u7a0b>>\u63cf\u8ff0\uff0c\u53ef\u4ee5\u8ba9init\/1\u5c3d\u5feb\u7ed3\u675f\uff0c\u662f\u4e00\u4e2a\u4f17\u6240\u5468\u77e5\u7684\u6280\u5de7\u3002\r\ninit([])->\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 {ok,#state{},0}.\r\n\r\n%% Result = {reply,Reply,NewState} | {reply,Reply,NewState,Timeout}\r\n%% | {reply,Reply,NewState,hibernate}\r\n%% | {noreply,NewState} | {noreply,NewState,Timeout}\r\n%% | {noreply,NewState,hibernate}\r\n%% | {stop,Reason,Reply,NewState} | {stop,Reason,NewState}\r\nhandle_call(Request,From,State)->\r\n Reply=ok,\r\n {reply,Reply,State}.\r\n\r\n%% Result = {noreply,NewState} | {noreply,NewState,Timeout}\r\n%% | {noreply,NewState,hibernate}\r\n%% | {stop,Reason,NewState}\r\nhandle_cast(Request,State)->\r\n case Request of\r\n stop -> {stop,normal,State};\r\n _ -> {noreplay,State}\r\n end.\r\n\r\n%% Result = {noreply,NewState} | {noreply,NewState,Timeout}\r\n%% | {noreply,NewState,hibernate}\r\n%% | {stop,Reason,NewState}\r\nhandle_info(Info,State)->\r\n {noreply,State}.\r\nterminate(Reason,State)->\r\n io:format("server is stopped"),\r\n ok.\r\ncode_change(OldVsn,State,Extra)->\r\n {ok,State}.<\/pre>\n","protected":false},"excerpt":{"rendered":"\u4eca\u5929\u7ec8\u4e8e\u7406\u89e3\u4e86gen_server\u884c\u4e3a\u6a21\u5f0f\u3002 \u8fd9\u91cc\u653e\u4e00\u4e2a\u6a21\u7248\uff0c\u4ee5\u65b9\u4fbf\u81ea\u5df1\u4f7f\u7528: …<\/p>\n