{"id":37116,"date":"2025-05-14T07:26:11","date_gmt":"2025-05-13T23:26:11","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/37116.html"},"modified":"2025-05-14T07:26:11","modified_gmt":"2025-05-13T23:26:11","slug":"c-asio%e7%bd%91%e7%bb%9c%e7%bc%96%e7%a8%8b5%e7%ae%80%e5%8d%95%e5%bc%82%e6%ad%a5echo%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/37116.html","title":{"rendered":"C++ asio\u7f51\u7edc\u7f16\u7a0b(5)\u7b80\u5355\u5f02\u6b65echo\u670d\u52a1\u5668"},"content":{"rendered":"<p>\u4e0a\u4e00\u7bc7\u6587\u7ae0:C&#043;&#043; asio\u7f51\u7edc\u7f16\u7a0b(4)\u5f02\u6b65\u8bfb\u5199\u64cd\u4f5c\u53ca\u6ce8\u610f\u4e8b\u9879 <\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>\u4e00\u3001Session\u7c7b<\/li>\n<li>\n<ul>\n<li>1.\u4ee3\u7801<\/li>\n<li>2.\u4ee3\u7801\u8be6\u89e3<\/li>\n<li>3.\u5b9e\u73b0Session\u7c7b<\/li>\n<li>\n<ul>\n<li>1.\u6784\u9020\u51fd\u6570<\/li>\n<li>2.handle_read<\/li>\n<li>3.\u4ecb\u7ecd\u4e00\u4e0bboost\u7684\u5c01\u88c5\u51fd\u6570\u548capi<\/li>\n<li>4.handle_write<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u4e8c\u3001Server\u7c7b<\/li>\n<li>\n<ul>\n<li>1.\u4ee3\u7801<\/li>\n<li>2.\u4ee3\u7801\u601d\u8def\u8be6\u89e3<\/li>\n<\/ul>\n<\/li>\n<li>\u4e09\u3001\u5ba2\u6237\u7aef<\/li>\n<li>\u56db\u3001\u8fd0\u884c\u622a\u56fe\u4e0e\u6d41\u7a0b\u56fe<\/li>\n<\/ul>\n<hr \/>\n<h2>\u524d\u8a00<\/h2>\n<p>\u63d0\u793a&#xff1a;\u8fd9\u91cc\u53ef\u4ee5\u6dfb\u52a0\u672c\u6587\u8981\u8bb0\u5f55\u7684\u5927\u6982\u5185\u5bb9&#xff1a;<\/p>\n<p>\u524d\u6587\u5df2\u7ecf\u4ecb\u7ecd\u4e86\u5f02\u6b65\u64cd\u4f5c\u7684api&#xff0c;\u4eca\u5929\u5199\u4e00\u4e2a\u7b80\u5355\u7684\u5f02\u6b65echo\u670d\u52a1\u5668&#xff0c;\u4ee5\u5e94\u7b54\u4e3a\u4e3b <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232608-6823d510b1e82.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<hr \/>\n<p>\u63d0\u793a&#xff1a;\u4ee5\u4e0b\u662f\u672c\u7bc7\u6587\u7ae0\u6b63\u6587\u5185\u5bb9&#xff0c;\u4e0b\u9762\u6848\u4f8b\u53ef\u4f9b\u53c2\u8003<\/p>\n<h2>\u4e00\u3001Session\u7c7b<\/h2>\n<p>Session\u7c7b\u4e3b\u8981\u662f\u5904\u7406\u5ba2\u6237\u7aef\u6d88\u606f\u6536\u53d1\u7684\u4f1a\u8bdd\u7c7b&#xff0c;\u4e3a\u4e86\u7b80\u5355\u8d77\u89c1&#xff0c;\u6211\u4eec\u4e0d\u8003\u8651\u7c98\u5305\u95ee\u9898&#xff0c;\u4e5f\u4e0d\u8003\u8651\u652f\u6301\u624b\u52a8\u8c03\u7528\u53d1\u9001\u7684\u63a5\u53e3&#xff0c;\u53ea\u4ee5\u5e94\u7b54\u7684\u65b9\u5f0f\u53d1\u9001\u548c\u63a5\u6536\u56fa\u5b9a\u957f\u5ea6(1024\u5b57\u8282\u957f\u5ea6)\u7684\u6570\u636e\u3002<\/p>\n<h3>1.\u4ee3\u7801<\/h3>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">pragma<\/span> <span class=\"token expression\">once<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;boost\/asio.hpp&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">using<\/span> boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>ip<span class=\"token operator\">::<\/span>tcp<span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Session<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">Session<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>io_context<span class=\"token operator\">&amp;<\/span> ioc<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span><span class=\"token function\">_socket<\/span><span class=\"token punctuation\">(<\/span>ioc<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>tcp<span class=\"token operator\">::<\/span>socket<span class=\"token operator\">&amp;<\/span> <span class=\"token function\">Socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">return<\/span> _socket<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u76d1\u542c\u5ba2\u6237\u7aef\u7684\u8bfb\u5199<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token comment\">\/\/\u56de\u8c03\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">handle_read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> ec<span class=\"token punctuation\">,<\/span>size_t bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">handle_write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> ec<span class=\"token punctuation\">,<\/span> size_t bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\ntcp<span class=\"token operator\">::<\/span>socket _socket<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">enum<\/span> <span class=\"token punctuation\">{<\/span>max_length<span class=\"token operator\">&#061;<\/span><span class=\"token number\">1024<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">char<\/span> _data<span class=\"token punctuation\">[<\/span>max_length<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<h3>2.\u4ee3\u7801\u8be6\u89e3<\/h3>\n<p>1.\u6784\u9020\u51fd\u6570\u4e2d\u4f20\u5165\u4e00\u4e2a\u4e0a\u4e0b\u6587\u7528\u6765\u7ed1\u5b9asocket 2.Start()\u7528\u6765\u76d1\u542c\u5ba2\u6237\u7aef\u662f\u5426\u53d1\u6765\u4fe1\u606f 3.\u56de\u8c03\u51fd\u6570\u4e2d handle_read \u662f\u8bfb\u7684\u56de\u8c03\u51fd\u6570&#xff0c;\u6211\u4eec\u8fd9\u91cc\u7528\u4e0a\u4e00\u4e2a\u6587\u7ae0\u4ecb\u7ecd\u7684async_read_some \u56e0\u4e3a\u4e0d\u4f1a\u4e00\u6b21\u6027\u8bfb\u5b8c&#xff0c;\u6240\u4ee5\u6211\u4eec\u6709\u7b2c\u4e8c\u4e2a\u53c2\u6570\u6765\u663e\u793a\u5df2\u7ecf\u8bfb\u4e86\u591a\u5c11\u6570\u636e 4.\u56de\u8c03\u51fd\u6570\u4e2d\u7684handle_write\u662f\u5199\u7684\u56de\u8c03\u51fd\u6570&#xff0c;\u6211\u4eec\u7528boost::asio::async_write\u6765\u4e00\u6b21\u6027\u53d1\u9001\u6570\u636e 5. _data\u7528\u6765\u63a5\u6536\u5ba2\u6237\u7aef\u4f20\u9012\u7684\u6570\u636e 6. _socket\u4e3a\u5355\u72ec\u5904\u7406\u5ba2\u6237\u7aef\u8bfb\u5199\u7684socket<\/p>\n<h3>3.\u5b9e\u73b0Session\u7c7b<\/h3>\n<h4>1.\u6784\u9020\u51fd\u6570<\/h4>\n<p>\u6211\u4eec\u5728\u6784\u9020\u51fd\u6570\u4e2d\u628a\u6570\u7ec4\u521d\u59cb\u5316\u4e3a0&#xff0c;\u7136\u540e\u76f4\u63a5\u8c03\u7528\u8bfb\u51fd\u6570\u5c31\u884c&#xff0c;\u4ed6\u4f1a\u4e00\u76f4\u7b49\u7740&#xff0c;\u5f53\u7528\u6237\u53d1\u9001\u6570\u636e&#xff0c;tcp\u5e95\u5c42\u6709\u5185\u5bb9\u7684\u65f6\u5019&#xff0c;\u5c31\u4f1a\u8fdb\u884c\u8bfb<\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Session<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">buffer<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> max_length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\nstd<span class=\"token operator\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>Session<span class=\"token operator\">::<\/span>handle_read<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> placeholders<span class=\"token operator\">::<\/span>_1<span class=\"token punctuation\">,<\/span> placeholders<span class=\"token operator\">::<\/span>_2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u7136\u540e\u8bfb\u4e86\u4ee5\u540e&#xff0c;\u6211\u4eec\u8981\u8fdb\u884c\u56de\u8c03\u51fd\u6570 \u8fd9\u4e2a\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u662f\u4e24\u4e2a\u7684\u539f\u56e0\u662f\u56e0\u4e3a\u6e90\u7801\u4e2dasync_read_some\u8981\u6c42\u4e86\u56de\u8c03\u51fd\u6570\u53c2\u6570\u5982\u4e0b <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232608-6823d510eaa09.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<h4>2.handle_read<\/h4>\n<p><span class=\"token comment\">\/\/\u8bfb\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Session<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">handle_read<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> ec<span class=\"token punctuation\">,<\/span> size_t bytes_transferred<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ec<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/0\u6b63\u786e  1\u9519\u8bef<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;read error&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">delete<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">else<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;server receivr data is &#034;<\/span><span class=\"token operator\">&lt;&lt;<\/span>_data <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token comment\">\/\/\u5c06\u6536\u5230\u7684\u6570\u636e\u53d1\u9001\u56de\u53bb<\/span><br \/>\nboost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">async_write<\/span><span class=\"token punctuation\">(<\/span>_socket<span class=\"token punctuation\">,<\/span> boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">buffer<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\nstd<span class=\"token operator\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>Session<span class=\"token operator\">::<\/span>handle_write<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> placeholders<span class=\"token operator\">::<\/span>_1<span class=\"token punctuation\">,<\/span> placeholders<span class=\"token operator\">::<\/span>_2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8bfb\u5b8c\u4ee5\u540e\u6211\u4eec\u6253\u5370\u4e00\u4e0b\u6536\u5230\u7684\u6570\u636e \u7136\u540e\u539f\u5c01\u4e0d\u52a8\u7684\u5c06\u8fd9\u4e2a\u6570\u636e\u53d1\u9001\u56de\u53bb\u5c31\u884c \u6211\u4eec\u7528boost::asio::async_write\u6765\u53d1\u9001&#xff0c;\u8fd9\u6837\u53ef\u4ee5\u4fdd\u8bc1\u6570\u636e\u4e00\u6b21\u6027\u53d1\u9001\u5b8c&#xff0c;\u4f46\u5176\u5b9e\u7528socket\u81ea\u5e26\u4e5f\u90fd\u884c&#xff0c;\u56e0\u4e3a\u6211\u4eec\u8fd9\u6837\u53ea\u505a\u4e00\u4e2a\u7b80\u5355\u7684\u5e94\u7b54\u5f0f\u7684\u800c\u5df2&#xff0c;\u672c\u8eab\u5c31\u4e0d\u4f1a\u51fa\u73b0\u957f\u6570\u636e&#xff0c;\u53ea\u662f\u4e00\u4e2a\u6a21\u578b\u800c\u5df2&#xff0c;\u4f46\u8fd9\u91cc\u7528\u4e00\u4e2aboost\u5e93\u81ea\u5e26\u7684\u5c01\u88c5\u51fd\u6570&#xff0c;\u5c31\u662f\u4e3a\u4e86\u4ecb\u7ecd\u4e00\u4e0b&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;&#xff01;<\/p>\n<h4>3.\u4ecb\u7ecd\u4e00\u4e0bboost\u7684\u5c01\u88c5\u51fd\u6570\u548capi<\/h4>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232609-6823d51136dca.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232609-6823d5115077f.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n<p>\u53c2\u6570\u5217\u8868\u6709\u4e09\u4e2a&#xff0c;\u7b2c\u4e00\u4e2a\u7ed1\u5b9asocket&#xff0c;\u7b2c\u4e8c\u4e2a\u4f20\u5165\u7684buffer&#xff0c;\u7b2c\u4e09\u4e2astd::bind<\/p>\n<h4>4.handle_write<\/h4>\n<p>\u5728\u4e4b\u524d\u8bfb\u5b8c\u4ee5\u540e\u6211\u4eec\u5c31\u51c6\u5907\u5c06\u6570\u636e\u53d1\u9001\u56de\u53bb&#xff0c;\u6240\u4ee5\u5c31\u5199&#xff0c;\u5199\u7684\u65f6\u5019\u4e5f\u8c03\u7528\u6211\u4eec\u8fd9\u4e2a\u56de\u8c03\u51fd\u6570&#xff0c;\u53c2\u6570\u7684\u539f\u56e0\u4e0e\u4e0a\u9762\u540c\u7406&#xff0c;\u67e5\u770b\u6e90\u7801\u5373\u53ef<\/p>\n<p><span class=\"token comment\">\/\/\u5199\u7684\u56de\u8c03\u51fd\u6570<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Session<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">handle_write<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> ec<span class=\"token punctuation\">,<\/span> size_t bytes_transferred<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ec<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/0\u6b63\u786e  1\u9519\u8bef<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\ncout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;write error&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> endl<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">delete<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">else<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token comment\">\/\/\u53d1\u5b8c\u4e86 \u5c31\u6e05\u9664\u6389\u539f\u5148\u7684<\/span><br \/>\n<span class=\"token function\">memset<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/\u7ee7\u7eed\u8bfb<\/span><br \/>\n_socket<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_read_some<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">buffer<\/span><span class=\"token punctuation\">(<\/span>_data<span class=\"token punctuation\">,<\/span> bytes_transferred<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span><br \/>\nstd<span class=\"token operator\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>Session<span class=\"token operator\">::<\/span>handle_read<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span> placeholders<span class=\"token operator\">::<\/span>_1<span class=\"token punctuation\">,<\/span> placeholders<span class=\"token operator\">::<\/span>_2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u4e8c\u3001Server\u7c7b<\/h2>\n<p>\u8fd9\u4e2a\u7528\u6765\u7ba1\u7406\u5ba2\u6237\u7aef\u8fde\u63a5\u7684&#xff0c;\u6211\u4eec\u521d\u59cb\u5316\u4e00\u4e2a\u76d1\u542c\u5668&#xff0c;\u5f53\u6709\u5ba2\u6237\u7aef\u8fdb\u884c\u8fde\u63a5\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u5c31\u5185\u90e8new\u4e00\u4e2aSession\u53bb\u5355\u72ec\u670d\u52a1\u8fd9\u4e2a\u5ba2\u6237\u7aef<\/p>\n<h3>1.\u4ee3\u7801<\/h3>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Server<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">public<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token function\">Server<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>io_context<span class=\"token operator\">&amp;<\/span> ioc<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">private<\/span><span class=\"token operator\">:<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">start_accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u76d1\u542c\u8fde\u63a5<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">handle_accept<\/span><span class=\"token punctuation\">(<\/span>Session<span class=\"token operator\">*<\/span> new_session<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> ec<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5f53\u6709\u8fde\u63a5\u7684\u65f6\u5019\u89e6\u53d1\u8fd9\u4e2a\u56de\u8c03\u51fd\u6570<\/span><br \/>\nboost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>io_context<span class=\"token operator\">&amp;<\/span> _ioc<span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u56e0\u4e3a\u4e0a\u4e0b\u6587\u4e0d\u5141\u8bb8\u88ab\u590d\u5236 \u6240\u4ee5\u7528\u5f15\u7528<\/span><br \/>\ntcp<span class=\"token operator\">::<\/span>acceptor _acceptor<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token class-name\">Server<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">Server<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>io_context<span class=\"token operator\">&amp;<\/span> ioc<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">short<\/span> port<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">:<\/span><span class=\"token function\">_ioc<\/span><span class=\"token punctuation\">(<\/span>ioc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token function\">_acceptor<\/span><span class=\"token punctuation\">(<\/span>ioc<span class=\"token punctuation\">,<\/span> tcp<span class=\"token operator\">::<\/span><span class=\"token function\">endpoint<\/span><span class=\"token punctuation\">(<\/span>tcp<span class=\"token operator\">::<\/span><span class=\"token function\">v4<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> port<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token function\">start_accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Server<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">start_accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nSession<span class=\"token operator\">*<\/span> new_session <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token function\">Session<\/span><span class=\"token punctuation\">(<\/span>_ioc<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n_acceptor<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_accept<\/span><span class=\"token punctuation\">(<\/span>new_session<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>std<span class=\"token operator\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>Server<span class=\"token operator\">::<\/span>handle_accept<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span>new_session<span class=\"token punctuation\">,<\/span>placeholders<span class=\"token operator\">::<\/span>_1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token keyword\">void<\/span> <span class=\"token class-name\">Server<\/span><span class=\"token operator\">::<\/span><span class=\"token function\">handle_accept<\/span><span class=\"token punctuation\">(<\/span>Session<span class=\"token operator\">*<\/span> new_session<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code<span class=\"token operator\">&amp;<\/span> ec<span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>ec<span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/\u6210\u529f<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\nnew_session<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token keyword\">else<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n<span class=\"token keyword\">delete<\/span> new_session<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token function\">start_accept<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u518d\u6b21\u51c6\u5907<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>2.\u4ee3\u7801\u601d\u8def\u8be6\u89e3<\/h3>\n<p>\u9996\u5148\u6211\u4eec\u521d\u59cb\u5316\u4e00\u4e2a\u4e0a\u4e0b\u6587ioc\u51c6\u5907\u597d&#xff0c;\u56e0\u4e3a\u521b\u5efa\u4e00\u4e2asocket\u8fde\u63a5\u9700\u8981\u8fd9\u4e2a\u4e1c\u897f \u7136\u540e\u6211\u4eec\u8c03\u7528\u8fd9\u4e2a\u51fd\u6570start_accept() \u8fd9\u4e2a\u51fd\u6570\u5185\u90e8\u4f1a\u521b\u5efa\u4e00\u4e2aSession\u51c6\u5907\u597d&#xff0c;\u76f8\u5f53\u4e8e\u6211\u63d0\u524d\u51c6\u5907\u4e00\u4e2a\u670d\u52a1\u5458\u51c6\u5907\u597d \u7136\u540e\u5f53\u76d1\u542c\u5668 _acceptor \u88ab\u89e6\u53d1\u7684\u65f6\u5019&#xff0c;\u6211\u4eec\u5c31\u8c03\u7528\u56de\u8c03\u51fd\u6570(\u76f8\u5f53\u4e8e\u4e00\u4e2a\u623f\u95f4),\u8ba9\u4e4b\u524d\u51c6\u5907\u597d\u7684\u670d\u52a1\u5458\u53bb\u670d\u52a1\u8fd9\u4e2a\u5ba2\u4eba<\/p>\n<p>_acceptor<span class=\"token punctuation\">.<\/span><span class=\"token function\">async_accept<\/span><span class=\"token punctuation\">(<\/span>new_session<span class=\"token operator\">-&gt;<\/span><span class=\"token function\">Socket<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>std<span class=\"token operator\">::<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>Server<span class=\"token operator\">::<\/span>handle_accept<span class=\"token punctuation\">,<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">,<\/span>new_session<span class=\"token punctuation\">,<\/span>placeholders<span class=\"token operator\">::<\/span>_1<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u4f46\u662f\u8fd9\u91cc\u8981\u63d0\u524d\u7ed1\u5b9a\u4e00\u4e2anew_session\u8fd9\u4e2a\u53c2\u6570&#xff0c;\u56e0\u4e3a\u6839\u636e\u6e90\u7801&#xff0c;\u56de\u8c03\u51fd\u6570\u7684\u53c2\u6570\u53ea\u80fd\u6709\u4e00\u4e2a&#xff0c;\u5c31\u662f\u9519\u8bef\u7801<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232609-6823d51182ae6.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u7136\u540e\u8fdb\u5165handle_accept\u51fd\u6570&#xff0c;\u5982\u679c\u6ca1\u6709\u9519\u8bef\u6211\u4eec\u5c31\u8c03\u7528\u8fd9\u4e2a\u521b\u5efa\u7684session\u53bb\u8fdb\u884cStart() \u5728Start\u4e2d\u5c31\u4f1a\u8fdb\u884c\u8bfb\u5199\u5faa\u73af\u8c03\u7528<\/p>\n<h2>\u4e09\u3001\u5ba2\u6237\u7aef<\/h2>\n<p>\u5ba2\u6237\u7aef\u8fd9\u4e48\u6211\u4eec\u5c31\u4e0d\u8fdb\u884c\u8bf4\u660e&#xff0c;\u56e0\u4e3a\u4eca\u5929\u505a\u7684\u662f\u7b80\u5355\u7684\u5f02\u6b65echo\u6a21\u578b&#xff0c;\u5e94\u7b54\u5f0f\u7684&#xff0c;\u5e76\u4e14\u5ba2\u6237\u7aef\u6211\u4eec\u5728\u7b2c\u4e8c\u8282\u6587\u7ae0\u8bb2\u8fc7\u4e86&#xff0c;\u7528\u7684\u5ba2\u6237\u7aef\u4ee3\u7801\u4e5f\u662f\u7b2c\u4e8c\u4e2a\u6587\u7ae0\u7684\u4ee3\u7801&#xff0c;\u6240\u4ee5\u5c31\u4e0d\u8fdb\u884c\u8bf4\u660e<\/p>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span><span class=\"token string\">&lt;boost\/asio.hpp&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><br \/>\n<span class=\"token keyword\">const<\/span> <span class=\"token keyword\">int<\/span> MAX_LENGTH <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">1024<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u8868\u793a\u53d1\u9001\u548c\u63a5\u6536\u6700\u5927\u957f\u5ea6\u4e3a1024\u5b57\u8282<\/span><br \/>\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">try<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><\/p>\n<p>            <span class=\"token comment\">\/\/\u521b\u5efa\u4e0a\u4e0b\u6587\u670d\u52a1<\/span><br \/>\n            boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>io_context ios<span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/\u521b\u5efaendpoint<\/span><br \/>\n            boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>ip<span class=\"token operator\">::<\/span>tcp<span class=\"token operator\">::<\/span>endpoint<br \/>\n                <span class=\"token function\">remote_ep<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>ip<span class=\"token operator\">::<\/span><span class=\"token function\">make_address<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;127.0.0.1&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">10086<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token comment\">\/\/127.0.0.1\u662f\u672c\u673a\u7684\u56de\u8def\u5730\u5740 \u56e0\u4e3a\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u5728\u540c\u4e00\u5730\u5740<\/span><br \/>\n            <span class=\"token comment\">\/\/\u670d\u52a1\u5668\u5c31\u662f\u672c\u673a<\/span><br \/>\n            boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>ip<span class=\"token operator\">::<\/span>tcp<span class=\"token operator\">::<\/span>socket <span class=\"token function\">sock<\/span><span class=\"token punctuation\">(<\/span>ios<span class=\"token punctuation\">,<\/span> remote_ep<span class=\"token punctuation\">.<\/span><span class=\"token function\">protocol<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code error <span class=\"token operator\">&#061;<\/span> boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span>error<span class=\"token operator\">::<\/span>host_not_found<span class=\"token punctuation\">;<\/span><br \/>\n            sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">connect<\/span><span class=\"token punctuation\">(<\/span>remote_ep<span class=\"token punctuation\">,<\/span> error<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>error<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;connect failed,code is:&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> error<span class=\"token punctuation\">.<\/span><span class=\"token function\">value<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span><br \/>\n                    <span class=\"token string\">&#034;error message is&#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> error<span class=\"token punctuation\">.<\/span><span class=\"token function\">message<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><\/p>\n<p>            std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u8bf7\u8f93\u5165\u9700\u8981\u53d1\u9001\u7684\u4fe1\u606f:&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">char<\/span> request<span class=\"token punctuation\">[<\/span>MAX_LENGTH<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>cin<span class=\"token punctuation\">.<\/span><span class=\"token function\">getline<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            size_t request_length <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">strlen<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u83b7\u53d6\u5b9e\u9645\u8981\u53d1\u9001\u7684\u6570\u636e\u957f\u5ea6<\/span><br \/>\n            <span class=\"token comment\">\/\/\u53d1\u9001\u6570\u636e<\/span><br \/>\n            boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>sock<span class=\"token punctuation\">,<\/span> boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">buffer<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">,<\/span> request_length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>            <span class=\"token keyword\">char<\/span> reply<span class=\"token punctuation\">[<\/span>MAX_LENGTH<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5b58\u50a8\u63a5\u6536\u6570\u636e<\/span><br \/>\n            <span class=\"token comment\">\/\/\u7528read\u8bfb<\/span><br \/>\n            size_t reply_length <span class=\"token operator\">&#061;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            boost<span class=\"token operator\">::<\/span>system<span class=\"token operator\">::<\/span>error_code ec<span class=\"token punctuation\">;<\/span><br \/>\n            reply_length <span class=\"token operator\">&#061;<\/span> sock<span class=\"token punctuation\">.<\/span><span class=\"token function\">read_some<\/span><span class=\"token punctuation\">(<\/span>boost<span class=\"token operator\">::<\/span>asio<span class=\"token operator\">::<\/span><span class=\"token function\">buffer<\/span><span class=\"token punctuation\">(<\/span>reply<span class=\"token punctuation\">,<\/span> MAX_LENGTH<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> ec<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>ec<span class=\"token punctuation\">)<\/span><br \/>\n            <span class=\"token punctuation\">{<\/span><br \/>\n                std<span class=\"token operator\">::<\/span>cerr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Read failed: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> ec<span class=\"token punctuation\">.<\/span><span class=\"token function\">message<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n                <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            <span class=\"token punctuation\">}<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\u56de\u590d:&#034;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>cout<span class=\"token punctuation\">.<\/span><span class=\"token function\">write<\/span><span class=\"token punctuation\">(<\/span>reply<span class=\"token punctuation\">,<\/span> reply_length<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;\\\\n&#034;<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">catch<\/span> <span class=\"token punctuation\">(<\/span>std<span class=\"token operator\">::<\/span>exception<span class=\"token operator\">&amp;<\/span> e<span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">{<\/span><br \/>\n            std<span class=\"token operator\">::<\/span>cerr <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">&#034;Exception is: &#034;<\/span> <span class=\"token operator\">&lt;&lt;<\/span> e<span class=\"token punctuation\">.<\/span><span class=\"token function\">what<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token operator\">::<\/span>endl<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">return<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h2>\u56db\u3001\u8fd0\u884c\u622a\u56fe\u4e0e\u6d41\u7a0b\u56fe<\/h2>\n<p><img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232609-6823d511b8c32.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/> \u670d\u52a1\u7aef\u63a5\u6536\u5b8c\u76f4\u63a5\u539f\u6587\u56de\u7ed9\u5ba2\u6237\u7aef\u5c31\u884c \u8fd9\u91cc\u670d\u52a1\u7aef\u62a5\u9519 read error\u662f\u56e0\u4e3a\u5ba2\u6237\u7aef\u6bcf\u53d1\u9001\u4e00\u6b21\u5c31\u4f1a\u65ad\u5f00\u8fde\u63a5&#xff0c;\u8fd9\u662f\u6211\u4eec\u4e4b\u524d\u4ee3\u7801\u8bbe\u5b9a\u7684 <img decoding=\"async\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2025\/05\/20250513232610-6823d512bdcfd.png\" alt=\"\u5728\u8fd9\u91cc\u63d2\u5165\u56fe\u7247\u63cf\u8ff0\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb762\u6b21\uff0c\u70b9\u8d5e15\u6b21\uff0c\u6536\u85cf19\u6b21\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5f02\u6b65Echo\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0c\u4f7f\u7528Boost.Asio\u5e93\u5904\u7406\u5ba2\u6237\u7aef\u6d88\u606f\u7684\u6536\u53d1\u3002\u670d\u52a1\u5668\u4e3b\u8981\u7531\u4e24\u4e2a\u7c7b\u7ec4\u6210\uff1aSession\u7c7b\u548cServer\u7c7b\u3002Session\u7c7b\u8d1f\u8d23\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u63a5\u6536\u548c\u53d1\u9001\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\uff081024\u5b57\u8282\uff09\uff0c\u5e76\u5229\u7528\u56de\u8c03\u51fd\u6570\u5904\u7406\u8bfb\u5199\u4e8b\u4ef6\u3002Server\u7c7b\u8d1f\u8d23\u76d1\u542c\u5ba2\u6237\u7aef\u8fde\u63a5\uff0c\u5f53\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\uff0c\u521b\u5efa\u4e00\u4e2aSession\u5b9e\u4f8b\u6765\u5904\u7406\u8be5\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002\u670d\u52a1\u5668\u91c7\u7528\u5e94\u7b54\u6a21\u5f0f\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u4f1a\u88ab\u539f\u5c01\u4e0d\u52a8\u5730\u8fd4\u56de\u3002\u6587\u7ae0\u8fd8\u7b80\u8981\u4ecb\u7ecd\u4e86Boost.Asio\u5e93\u4e2d\u7684\u5f02\u6b65\u8bfb\u5199\u51fd\u6570\uff0c\u5e76\u63d0\u4f9b\u4e86\u4ee3\u7801\u5b9e\u73b0\u548c\u8be6\u7ec6\u89e3<\/p>\n","protected":false},"author":2,"featured_media":37109,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[55,2205,43,78],"topic":[],"class_list":["post-37116","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-c","tag-casio","tag-43","tag-78"],"yoast_head":"<!-- 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content=\"\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb762\u6b21\uff0c\u70b9\u8d5e15\u6b21\uff0c\u6536\u85cf19\u6b21\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5f02\u6b65Echo\u670d\u52a1\u5668\u7684\u5b9e\u73b0\uff0c\u4f7f\u7528Boost.Asio\u5e93\u5904\u7406\u5ba2\u6237\u7aef\u6d88\u606f\u7684\u6536\u53d1\u3002\u670d\u52a1\u5668\u4e3b\u8981\u7531\u4e24\u4e2a\u7c7b\u7ec4\u6210\uff1aSession\u7c7b\u548cServer\u7c7b\u3002Session\u7c7b\u8d1f\u8d23\u5904\u7406\u5ba2\u6237\u7aef\u7684\u8bfb\u5199\u64cd\u4f5c\uff0c\u901a\u8fc7\u5f02\u6b65\u65b9\u5f0f\u63a5\u6536\u548c\u53d1\u9001\u56fa\u5b9a\u957f\u5ea6\u7684\u6570\u636e\uff081024\u5b57\u8282\uff09\uff0c\u5e76\u5229\u7528\u56de\u8c03\u51fd\u6570\u5904\u7406\u8bfb\u5199\u4e8b\u4ef6\u3002Server\u7c7b\u8d1f\u8d23\u76d1\u542c\u5ba2\u6237\u7aef\u8fde\u63a5\uff0c\u5f53\u6709\u5ba2\u6237\u7aef\u8fde\u63a5\u65f6\uff0c\u521b\u5efa\u4e00\u4e2aSession\u5b9e\u4f8b\u6765\u5904\u7406\u8be5\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002\u670d\u52a1\u5668\u91c7\u7528\u5e94\u7b54\u6a21\u5f0f\uff0c\u5ba2\u6237\u7aef\u53d1\u9001\u7684\u6570\u636e\u4f1a\u88ab\u539f\u5c01\u4e0d\u52a8\u5730\u8fd4\u56de\u3002\u6587\u7ae0\u8fd8\u7b80\u8981\u4ecb\u7ecd\u4e86Boost.Asio\u5e93\u4e2d\u7684\u5f02\u6b65\u8bfb\u5199\u51fd\u6570\uff0c\u5e76\u63d0\u4f9b\u4e86\u4ee3\u7801\u5b9e\u73b0\u548c\u8be6\u7ec6\u89e3\" 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