{"id":33294,"date":"2025-04-27T08:30:25","date_gmt":"2025-04-27T00:30:25","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/33294.html"},"modified":"2025-04-27T08:30:25","modified_gmt":"2025-04-27T00:30:25","slug":"%e6%96%bd%e7%a3%8a%e8%80%81%e5%b8%88%e5%9f%ba%e4%ba%8emuduo%e7%bd%91%e7%bb%9c%e5%ba%93%e7%9a%84%e9%9b%86%e7%be%a4%e8%81%8a%e5%a4%a9%e6%9c%8d%e5%8a%a1%e5%99%a8%e4%ba%94","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/33294.html","title":{"rendered":"\u65bd\u78ca\u8001\u5e08\u57fa\u4e8emuduo\u7f51\u7edc\u5e93\u7684\u96c6\u7fa4\u804a\u5929\u670d\u52a1\u5668(\u4e94)"},"content":{"rendered":"<\/p>\n<h4>\u6587\u7ae0\u76ee\u5f55<\/h4>\n<ul>\n<li>\u6dfb\u52a0\u597d\u53cb\u4e1a\u52a1<\/li>\n<li>\n<ul>\n<li>\u5b9e\u73b0\u7684\u529f\u80fd-\u7b80\u5355\u5b9e\u73b0<\/li>\n<li>\u529f\u80fd\u4e0d\u5b8c\u5584<\/li>\n<li>\u8868\u8bbe\u8ba1-\u6bcf\u4e2a\u8868\u5bf9\u5e94\u4e00\u4e2a\u5355\u72ec\u7684\u5904\u7406\u6587\u4ef6<\/li>\n<li>\u4e1a\u52a1\u903b\u8f91:-\u663e\u7136\u4e0d\u597d, \u53ef\u4ee5\u6539\u8fdb<\/li>\n<li>\u4e3a\u4ec0\u4e48\u529f\u80fd\u5c11<\/li>\n<li>\u4f18\u5316<\/li>\n<li>SQL\u8054\u5408\u67e5\u8be2\u8bed\u53e5<\/li>\n<li>\u4ee3\u7801\u7ed3\u6784<\/li>\n<li>\u6d4b\u8bd5<\/li>\n<li>\u95ee\u9898<\/li>\n<\/ul>\n<\/li>\n<li>\u7fa4\u7ec4\u4e1a\u52a1<\/li>\n<li>\n<ul>\n<li>\u4e3b\u8981\u529f\u80fd<\/li>\n<li>\u8868\u8bbe\u8ba1<\/li>\n<li>\u591a\u8868\u67e5\u8be2&#xff1a;<\/li>\n<li>&#096;Group&#096; \u7c7b<\/li>\n<li>&#096;GroupUser&#096; \u7c7b<\/li>\n<li>&#096;GroupModel&#096;&#xff08;\u6570\u636e\u8bbf\u95ee\u5c42&#xff09;<\/li>\n<li>\u6dfb\u52a0\u7fa4\u804a\u4e1a\u52a1<\/li>\n<\/ul>\n<\/li>\n<li>\u7fa4\u7ec4\u9636\u6bb5\u9762\u8bd5\u95ee\u9898<\/li>\n<li>\n<ul>\n<li>\n<ul>\n<li>\n<ul>\n<li>1. **\u9879\u76ee\u4ecb\u7ecd\u600e\u4e48\u8bb2**<\/li>\n<li>2. **\u9762\u8bd5\u5b98\u5e38\u95ee\u70b9**<\/li>\n<li>3. **\u5bb9\u6613\u7ffb\u8f66\u7684\u5730\u65b9**<\/li>\n<li>4. **\u52a0\u5206\u70b9**<\/li>\n<li>5. **\u522b\u5fd8\u4e86\u8fd9\u4e9b\u7ec6\u8282**<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u5bf9\u4e8ec&#043;&#043;, \u4e1a\u52a1\u4e0d\u91cd\u8981!!!<\/li>\n<li>\n<ul>\n<li>\n<ul>\n<li>**\u4e3a\u4ec0\u4e48 C&#043;&#043; \u66f4\u9002\u5408\u505a\u5e95\u5c42&#xff0c;\u4e0d\u662f\u4e1a\u52a1\u903b\u8f91&#xff1f;**<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u81f3\u6b64, \u670d\u52a1\u5668\u4e1a\u52a1\u4ee3\u7801\u5b8c\u6bd5<\/li>\n<\/ul>\n<h2>\u6dfb\u52a0\u597d\u53cb\u4e1a\u52a1<\/h2>\n<h3>\u5b9e\u73b0\u7684\u529f\u80fd-\u7b80\u5355\u5b9e\u73b0<\/h3>\n<p>\u57fa\u4e8e \u63a7\u5236\u53f0\u7684 \u597d\u53cb\u663e\u793a<\/p>\n<li>\u7528\u6237\u767b\u5f55\u540e&#xff0c;\u670d\u52a1\u5668\u8fd4\u56de\u597d\u53cb\u5217\u8868\u4fe1\u606f&#xff0c;\u7528\u6237\u53ef\u4ee5\u4e0e\u597d\u53cb\u804a\u5929\u3002<\/li>\n<li>\u6dfb\u52a0\u597d\u53cb\u64cd\u4f5c\u901a\u8fc7\u5ba2\u6237\u7aef\u53d1\u9001\u8bf7\u6c42\u5230\u670d\u52a1\u5668&#xff0c;\u670d\u52a1\u5668\u5c06\u7528\u6237\u5173\u7cfb\u5199\u5165\u6570\u636e\u5e93\u7684friend\u8868\u3002<\/li>\n<h3>\u529f\u80fd\u4e0d\u5b8c\u5584<\/h3>\n<p>\u672c\u9879\u76ee\u5e76\u6ca1\u6709\u975e\u5e38\u7684\u4e25\u683c\u7684, \u5fc5\u987b\u662f\u597d\u53cb\u624d\u80fd\u804a\u5929, \u53ea\u9700\u8981\u77e5\u9053\u7528\u6237 id \u548c name, \u5c31\u80fd\u804a\u5929&#8212;-\u6709\u80fd\u529b\u53ef\u4ee5\u8fdb\u884c\u6539\u8fdb<\/p>\n<h3>\u8868\u8bbe\u8ba1-\u6bcf\u4e2a\u8868\u5bf9\u5e94\u4e00\u4e2a\u5355\u72ec\u7684\u5904\u7406\u6587\u4ef6<\/h3>\n<p>friend\u8868\u53ea\u5305\u542b\u4e24\u4e2a\u5b57\u6bb5&#xff1a;user_id \u548c friend_id\u3002\u901a\u8fc7\u8054\u5408\u4e3b\u952e\u786e\u4fdd\u540c\u4e00\u597d\u53cb\u5173\u7cfb\u4e0d\u4f1a\u91cd\u590d\u3002<\/p>\n<h3>\u4e1a\u52a1\u903b\u8f91:-\u663e\u7136\u4e0d\u597d, \u53ef\u4ee5\u6539\u8fdb<\/h3>\n<p>\u7528\u6237\u53ef\u4ee5\u76f4\u63a5\u6dfb\u52a0\u597d\u53cb&#xff0c;\u4e0d\u9700\u8981\u5bf9\u65b9\u540c\u610f\u3002\u6dfb\u52a0\u597d\u53cb\u65f6&#xff0c;user_id\u548cfriend_id\u4f1a\u88ab\u63d2\u5165\u5230\u6570\u636e\u5e93\u4e2d\u3002\u67e5\u8be2\u597d\u53cb\u65f6&#xff0c;\u901a\u8fc7\u6570\u636e\u5e93\u7684\u8054\u5408\u67e5\u8be2\u8fd4\u56de\u597d\u53cb\u7684\u8be6\u7ec6\u4fe1\u606f&#xff0c;\u5305\u62ecID\u3001\u540d\u5b57\u548c\u5728\u7ebf\u72b6\u6001&#xff08;\u4e0d\u8fd4\u56de\u5bc6\u7801&#xff09;\u3002<\/p>\n<h3>\u4e3a\u4ec0\u4e48\u529f\u80fd\u5c11<\/h3>\n<p>C\u548cC&#043;&#043;\u5e76\u4e0d\u50cfJava\u6216PHP\u90a3\u6837\u5185\u7f6e\u5f88\u591a\u65b9\u4fbf\u7684\u6846\u67b6\u548c\u5de5\u5177\u6765\u5feb\u901f\u5904\u7406\u590d\u6742\u7684\u4e1a\u52a1\u903b\u8f91\u3002C\/C&#043;&#043;\u66f4\u504f\u5411\u5e95\u5c42\u64cd\u4f5c&#xff0c;\u5f00\u53d1\u4eba\u5458\u9700\u8981\u81ea\u5df1\u7ba1\u7406\u66f4\u591a\u7684\u7ec6\u8282&#xff08;\u5982\u6570\u636e\u5e93\u8fde\u63a5\u3001\u67e5\u8be2\u7b49&#xff09;&#xff0c;\u8fd9\u4f1a\u5f71\u54cd\u529f\u80fd\u7684\u6269\u5c55\u3002<\/p>\n<h3>\u4f18\u5316<\/h3>\n<p>\u8003\u8651\u5230\u5ba2\u6237\u7aef\u767b\u5f55\u540e\u597d\u53cb\u5217\u8868\u4e00\u822c\u4e0d\u4f1a\u53d8\u5316&#xff0c;\u670d\u52a1\u5668\u53ef\u4ee5\u5728\u7528\u6237\u767b\u5f55\u65f6\u8fd4\u56de\u597d\u53cb\u5217\u8868&#xff0c;\u5e76\u5c06\u8be5\u5217\u8868\u4fdd\u5b58\u5728\u5ba2\u6237\u7aef&#xff0c;\u907f\u514d\u6bcf\u6b21\u767b\u5f55\u90fd\u4ece\u670d\u52a1\u5668\u83b7\u53d6\u3002\u2014\u964d\u4f4e\u670d\u52a1\u5668\u538b\u529b<\/p>\n<p>\u5982\u679c\u6709\u4fee\u6539, \u5728\u4e0b\u6b21\u4e0a\u7ebf \u8fdb\u884c\u4fee\u6539<\/p>\n<h3>SQL\u8054\u5408\u67e5\u8be2\u8bed\u53e5<\/h3>\n<p>\u901a\u8fc7SQL\u8054\u5408\u67e5\u8be2\u6765\u83b7\u53d6\u7528\u6237\u7684\u597d\u53cb\u4fe1\u606f&#xff0c;\u907f\u514d\u91cd\u590d\u67e5\u8be2\u3002<\/p>\n<p>\u5185\u8fde\u63a5\u67e5\u8be2\u7c7b\u578b:<\/p>\n<ul>\n<li>\u53ea\u8fd4\u56de\u4e24\u4e2a\u8868\u4e2d\u5339\u914d\u7684\u8bb0\u5f55\u3002<\/li>\n<li>\u5982\u679c\u67d0\u4e00\u8868\u4e2d\u6ca1\u6709\u5339\u914d\u7684\u8bb0\u5f55&#xff0c;\u5219\u4e0d\u4f1a\u51fa\u73b0\u5728\u7ed3\u679c\u4e2d\u3002<\/li>\n<\/ul>\n<p>select a.id a.name a.state from user a inner join friend b on b.friendid &#061; a.id where b.userid&#061;%d<\/p>\n<p>LEFT JOIN&#xff08;\u5de6\u8fde\u63a5&#xff09;:<\/p>\n<ul>\n<li>\n<p>\u8fd4\u56de\u5de6\u8868\u4e2d\u7684\u6240\u6709\u8bb0\u5f55&#xff0c;\u5373\u4f7f\u53f3\u8868\u4e2d\u6ca1\u6709\u5339\u914d\u7684\u8bb0\u5f55\u3002<\/p>\n<\/li>\n<li>\n<p>\u5982\u679c\u53f3\u8868\u4e2d\u6ca1\u6709\u5339\u914d\u7684\u8bb0\u5f55&#xff0c;\u7ed3\u679c\u4e2d\u5bf9\u5e94\u7684\u5b57\u6bb5\u4e3a NULL\u3002<\/p>\n<\/li>\n<li> SELECT u.id, u.name, f.friendid<br \/>\nFROM user u<br \/>\nLEFT JOIN friend f ON u.id &#061; f.friendid;\n <\/li>\n<\/ul>\n<h3>\u4ee3\u7801\u7ed3\u6784<\/h3>\n<p>include\/public.hpp<\/p>\n<p>ADD_FRIEND_MSG \/\/ \u6dfb\u52a0\u597d\u53cb<\/p>\n<p>include\/server\/chatservice.hpp<\/p>\n<p>\/\/ \u5904\u7406\u6dfb\u52a0\u597d\u53cb\u4e1a\u52a1<br \/>\n    void addFriend(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time); \/\/ conn\u7528\u6765\u7ef4\u62a4\u7528\u6237\u4e0e\u5176\u7f51\u7edc\u8fde\u63a5\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb , \u5feb\u901f\u627e\u5230\u67d0\u4e2a\u7528\u6237\u7684\u8fde\u63a5<\/p>\n<p>include\/server\/friendmodel.hpp<\/p>\n<p>#ifndef  ADD_FRIEND_H<br \/>\n#define ADD_FRIEND_H<br \/>\n#include &#034;user.hpp&#034;<br \/>\n#include &lt;vector&gt;<\/p>\n<p>\/\/ \u7ef4\u62a4\u597d\u53cb\u4fe1\u606f\u7684\u64cd\u4f5c\u63a5\u53e3\u65b9\u6cd5<br \/>\nclass FriendModel<br \/>\n{<br \/>\npublic:<br \/>\n    \/\/ \u6dfb\u52a0\u597d\u53cb<br \/>\n    void insert(int userid, int friendid);<\/p>\n<p>    \/\/ \u8fd4\u56de\u597d\u53cb\u5217\u8868 \u8981\u663e\u793a\u597d\u53cb\u7684\u4fe1\u606f<br \/>\n    \/\/ \u4e24\u4e2a\u8868\u7684 \u8054\u5408\u67e5\u8be2<br \/>\n    vector&lt;User&gt; query(int userid);<\/p>\n<p>};<\/p>\n<p>#endif<\/p>\n<p>src\/server\/friendmodel.cpp<\/p>\n<p>#include &#034;friendmodel.hpp&#034;<br \/>\n#include &#034;db.h&#034;<\/p>\n<p>\/\/ \u6dfb\u52a0\u597d\u53cb<br \/>\nvoid FriendModel::insert(int userid, int friendid)<br \/>\n{<br \/>\n    \/\/ 1. \u521b\u5efasql\u8bed\u53e5<br \/>\n    char sql[1024] &#061; {0};<br \/>\n    sprintf(sql, &#034;insert into friend (userid, friendid) values (%d, %d)&#034;, userid, friendid);<\/p>\n<p>    \/\/ 2. \u6267\u884csql\u8bed\u53e5<br \/>\n    MySQL mysql;<br \/>\n    if (mysql.connect())<br \/>\n    {<br \/>\n        mysql.update(sql);<br \/>\n    }<br \/>\n}<\/p>\n<p>\/\/ \u8fd4\u56de\u597d\u53cb\u5217\u8868 \u8981\u663e\u793a\u597d\u53cb\u7684\u4fe1\u606f<br \/>\n\/\/ \u4e24\u4e2a\u8868\u7684 \u8054\u5408\u67e5\u8be2<br \/>\nvector&lt;User&gt; FriendModel::query(int userid)<br \/>\n{<br \/>\n    \/\/ 1. \u521b\u5efasql\u8bed\u53e5<br \/>\n    char sql[1024] &#061; {0};<br \/>\n    sprintf(sql, &#034;select a.id, a.name, a.state from user a inner join friend b on b.friendid &#061; a.id where b.userid &#061; %d&#034;, userid); <\/p>\n<p>    \/\/ 2. \u6267\u884csql\u8bed\u53e5<br \/>\n    MySQL mysql;<br \/>\n    if (mysql.connect())<br \/>\n    {<br \/>\n        MYSQL_RES *res &#061; mysql.query(sql);<br \/>\n        if (res !&#061; nullptr)<br \/>\n        {<br \/>\n            \/\/ 3. \u89e3\u6790\u7ed3\u679c<br \/>\n            MYSQL_ROW row;<br \/>\n            vector&lt;User&gt; vec;<br \/>\n            while ((row &#061; mysql_fetch_row(res)) !&#061; nullptr)<br \/>\n            {<br \/>\n                User user;<br \/>\n                user.setId(atoi(row[0]));<br \/>\n                user.setName(row[1]);<br \/>\n                user.setState(row[2]);<br \/>\n                vec.push_back(user);<br \/>\n            }<br \/>\n            mysql_free_result(res);<br \/>\n            return vec;<br \/>\n        }<br \/>\n    }<br \/>\n    return vector&lt;User&gt;();  \/\/\u6bd4vec\u597d\u70b9<br \/>\n}<\/p>\n<p>include\/server\/chatservice.hpp<\/p>\n<p>#include &#034;friendmodel.hpp&#034;<\/p>\n<p>\/\/ \u597d\u53cb\u64cd\u4f5c\u5bf9\u8c61<br \/>\n    FriendModel _friendModel;<\/p>\n<p>src\/server\/chatservice.cpp<\/p>\n<p>\/\/\u7ed1\u5b9a\u4e1a\u52a1<br \/>\n_msghandlermap.insert({ADD_FRIEND_MSG, std::bind(&amp;ChatService::addFriend, this, _1, _2, _3)});<\/p>\n<p>\/\/\u767b\u9646\u6210\u529f\u91cc\u52a0<br \/>\n\/\/ \u67e5\u8be2\u597d\u53cb\u5217\u8868\u5e76\u8fd4\u56de<br \/>\nvector&lt;User&gt; uservec &#061; _friendmodel.query(id);<br \/>\nif(!uservec.empty())<br \/>\n{<br \/>\n    \/\/ response[&#034;friends&#034;] &#061; uservec; \/\/ \u8fd9\u662f\u4e0d\u884c\u7684, \u56e0\u4e3a\u662f\u81ea\u5b9a\u4e49\u7c7b\u578b<br \/>\n    \/\/ map\u4e5f\u4e0d\u884c, \u56e0\u4e3amap\u7684value \u4e0d\u786e\u5b9a<br \/>\n    vector&lt;string&gt; vec;<br \/>\n    for(auto &amp;user:uservec)<br \/>\n    {<br \/>\n        json js;<br \/>\n        js[&#034;id&#034;] &#061; user.getId();<br \/>\n        js[&#034;name&#034;] &#061; user.getName();<br \/>\n        js[&#034;state&#034;] &#061; user.getState();<br \/>\n        vec.push_back(js.dump());<br \/>\n    }<br \/>\n    response[&#034;friends&#034;] &#061; vec; \/\/ \u597d\u53cb\u5217\u8868<br \/>\n}<\/p>\n<p>\/\/ \u6dfb\u52a0\u597d\u53cb\u4e1a\u52a1<br \/>\n\/\/ \u5904\u7406\u6dfb\u52a0\u597d\u53cb\u4e1a\u52a1 \u5e26msgid<br \/>\nvoid ChatService::addFriend(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time)<br \/>\n{<br \/>\n    int id &#061; js[&#034;id&#034;].get&lt;int&gt;();<br \/>\n    int friendid &#061; js[&#034;friendid&#034;].get&lt;int&gt;();<br \/>\n    \/\/ \u6dfb\u52a0\u597d\u53cb   \u663e\u793a\u597d\u53cb\u4fe1\u606f \u5728\u767b\u9646\u6210\u529f\u90a3\u91cc<br \/>\n    _friendmodel.insert(id, friendid);<\/p>\n<p>}<\/p>\n<h3>\u6d4b\u8bd5<\/h3>\n<p>{&#034;msgid&#034;:1,&#034;id&#034;:22,&#034;password&#034;:&#034;101010&#034;}<br \/>\n{&#034;msgid&#034;:6,&#034;id&#034;:22,&#034;friendid&#034;:23}<br \/>\n{&#034;msgid&#034;:6,&#034;id&#034;:22,&#034;friendid&#034;:25}<\/p>\n<p>\/\/\u5ba2\u6237\u7aef\u6b63\u5e38\u9000\u51fa<br \/>\n{&#034;msgid&#034;:1,&#034;id&#034;:22,&#034;password&#034;:&#034;101010&#034;}<\/p>\n<h3>\u95ee\u9898<\/h3>\n<p>\u4ee3\u7801\u73b0\u5728\u6709\u4e2a\u95ee\u9898, \u670d\u52a1\u5668\u5f02\u5e38\u9000\u51fa, \u7528\u6237\u72b6\u6001\u53ef\u80fd\u6ca1\u6709\u6539\u53d8, \u8fd8\u662fonline, \u5f53\u518d\u6b21\u8fde\u63a5\u65f6, \u7528\u6237\u65e0\u6cd5\u91cd\u590d\u767b\u5f55, \u800c\u4e14 \u8bb0\u5f55\u5728\u7ebf\u7528\u6237\u4fe1\u606f\u7684 map \u4e5f\u6ca1\u6709\u8fd9\u4e2a\u7528\u6237, \u5c31\u4f1a\u5bfc\u81f4 \u5373\u4f7f\u6b64\u65f6 \u5ba2\u6237\u7aef\u65ad\u5f00\u8fde\u63a5, \u4e5f\u65e0\u6cd5 \u4e0b\u7ebf<\/p>\n<h2>\u7fa4\u7ec4\u4e1a\u52a1<\/h2>\n<h3>\u4e3b\u8981\u529f\u80fd<\/h3>\n<p>\u521b\u5efa\u7fa4\u7ec4&#xff1a;\u7fa4\u7ec4\u7ba1\u7406\u5458\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7fa4\u7ec4&#xff0c;\u7fa4\u540d\u552f\u4e00&#xff0c;\u63cf\u8ff0\u53ef\u9009\u3002\u6bcf\u6b21\u521b\u5efa\u7fa4\u7ec4\u65f6&#xff0c;\u6570\u636e\u5e93\u4e2d\u4f1a\u63d2\u5165\u65b0\u7684\u8bb0\u5f55\u3002\u7fa4\u7ec4\u7684 ID \u4f1a\u81ea\u52a8\u751f\u6210&#xff0c;\u63d2\u5165\u65f6\u4f1a\u8fd4\u56de\u5e76\u66f4\u65b0\u5230\u76f8\u5e94\u7684\u7fa4\u7ec4\u5bf9\u8c61\u3002<\/p>\n<p>\u52a0\u5165\u7fa4\u7ec4&#xff1a;\u7528\u6237\u52a0\u5165\u7fa4\u7ec4\u65f6&#xff0c;\u4f1a\u5411 group user \u8868\u4e2d\u63d2\u5165\u4e00\u6761\u8bb0\u5f55&#xff0c;\u8bb0\u5f55\u8be5\u7528\u6237\u5728\u67d0\u4e2a\u7fa4\u7ec4\u4e2d\u7684\u8eab\u4efd&#xff08;\u5982\u7ba1\u7406\u5458\u6216\u666e\u901a\u6210\u5458&#xff09;\u3002group user \u8868\u7684\u8054\u5408\u4e3b\u952e\u662f group ID \u548c user ID&#xff0c;\u786e\u4fdd\u6bcf\u4e2a\u7528\u6237\u5728\u540c\u4e00\u7fa4\u7ec4\u4e2d\u53ea\u6709\u4e00\u6761\u8bb0\u5f55\u3002<\/p>\n<p>\u7fa4\u804a\u529f\u80fd&#xff1a;\u901a\u8fc7\u67e5\u8be2\u7fa4\u7ec4\u4e2d\u7684\u5176\u4ed6\u6210\u5458&#xff0c;\u5c06\u6d88\u606f\u8f6c\u53d1\u7ed9\u4ed6\u4eec\u3002\u8fd9\u91cc\u4f7f\u7528\u6570\u636e\u5e93\u7684\u8054\u5408\u67e5\u8be2&#xff0c;\u67e5\u8be2\u6307\u5b9a\u7fa4\u7ec4\u5185\u6240\u6709\u6210\u5458\u7684 ID \u548c\u89d2\u8272&#xff0c;\u6765\u786e\u5b9a\u8981\u8f6c\u53d1\u6d88\u606f\u7684\u5bf9\u8c61\u3002<\/p>\n<p>\u529f\u80fd\u76ee\u6807&#xff1a;<\/p>\n<ul>\n<li>\u652f\u6301\u7528\u6237\u4e4b\u95f4\u8fdb\u884c\u7fa4\u804a\u4ea4\u6d41\u3002<\/li>\n<li>\u7528\u6237\u53ef\u4ee5\u521b\u5efa\u7fa4\u7ec4\u3001\u52a0\u5165\u7fa4\u7ec4\u3001\u7fa4\u804a\u901a\u4fe1\u3002<\/li>\n<\/ul>\n<p>\u8bbe\u8ba1\u524d\u63d0&#xff1a;<\/p>\n<ul>\n<li>\u4e00\u4e2a\u7528\u6237\u53ef\u4ee5\u5c5e\u4e8e\u591a\u4e2a\u7fa4\u7ec4\u3002<\/li>\n<li>\u4e00\u4e2a\u7fa4\u7ec4\u53ef\u4ee5\u5305\u542b\u591a\u4e2a\u7528\u6237\u3002<\/li>\n<li>\u7fa4\u7ec4\u5185\u6210\u5458\u53ef\u80fd\u6709\u4e0d\u540c\u7684\u89d2\u8272&#xff08;\u5982\u7ba1\u7406\u5458&#xff09;<\/li>\n<\/ul>\n<h3>\u8868\u8bbe\u8ba1<\/h3>\n<p>allgroup \u8868&#xff1a;\u5b58\u50a8\u7fa4\u7ec4\u4fe1\u606f&#xff08;id\u3001name\u3001desc(\u7fa4\u63cf\u8ff0)&#xff09;\u3002<\/p>\n<p>\u5b57\u6bb5&#xff1a;<\/p>\n<ul>\n<li>id: \u7fa4\u7ec4\u4e3b\u952e&#xff0c;\u81ea\u589e\u3002<\/li>\n<li>groupname: \u7fa4\u540d&#xff08;\u552f\u4e00&#xff09;\u3002<\/li>\n<li>groupdesc: \u7fa4\u63cf\u8ff0\u3002<\/li>\n<\/ul>\n<p>groupuser \u8868&#xff1a;\u8bb0\u5f55\u7528\u6237\u548c\u7fa4\u7ec4\u7684\u5173\u7cfb&#xff0c;\u5305\u542b groupid\u3001userid \u548c grouprole(\u6210\u5458\u8eab\u4efd)\u3002<\/p>\n<p>\u5b57\u6bb5&#xff1a;<\/p>\n<ul>\n<li>groupid: \u6240\u5c5e\u7fa4\u7ec4ID\u3002<\/li>\n<li>userid: \u6210\u5458\u7528\u6237ID\u3002<\/li>\n<li>grouprole: \u5728\u7fa4\u5185\u7684\u89d2\u8272&#xff08;\u5982 creator\u3001normal&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u4e3b\u952e\u4e3a\u8054\u5408\u4e3b\u952e&#xff08;groupid, userid&#xff09;\u9632\u6b62\u91cd\u590d\u52a0\u7fa4\u3002<\/p>\n<h3>\u591a\u8868\u67e5\u8be2&#xff1a;<\/h3>\n<p>\u4e3a\u4e86\u63d0\u9ad8\u6548\u7387&#xff0c;\u5c3d\u91cf\u5728\u5355\u6b21\u6570\u636e\u5e93\u67e5\u8be2\u4e2d\u5b8c\u6210\u6240\u6709\u76f8\u5173\u6570\u636e\u7684\u83b7\u53d6&#xff0c;\u800c\u4e0d\u662f\u5206\u591a\u6b21\u67e5\u8be2\u3002\u4f7f\u7528\u5185\u8fde\u63a5&#xff08;INNER JOIN&#xff09;\u8fdb\u884c\u8054\u5408\u67e5\u8be2&#xff0c;\u83b7\u53d6\u7528\u6237\u6240\u5728\u7fa4\u7ec4\u7684\u8be6\u7ec6\u4fe1\u606f\u4ee5\u53ca\u7fa4\u7ec4\u5185\u6210\u5458\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<p>\u6240\u4ee5\u4f7f\u7528\u4e00\u4e2a vector \u5b58\u50a8 groupuser \u8868<\/p>\n<p>\u5927\u578b\u9879\u76ee \u4f1a\u91c7\u7528 \u6570\u636e\u5e93 \u8fde\u63a5\u6c60 \u63d0\u9ad8\u6548\u7387<\/p>\n<p>\u907f\u514d\u201c\u67e5group ID\u540e&#xff0c;\u518d\u67e5group info&#xff0c;\u518d\u67e5group members\u201d\u7684\u591a\u6b21\u5faa\u73af\u67e5\u6cd5<\/p>\n<h3>Group \u7c7b<\/h3>\n<ul>\n<li>\u8868\u793a\u4e00\u4e2a\u7fa4\u7ec4&#xff0c;\u5305\u542b\u7fa4\u4fe1\u606f\u53ca\u6210\u5458\u5217\u8868\u3002<\/li>\n<li>\u6210\u5458\u53d8\u91cf&#xff1a;\n<ul>\n<li>id, groupname, groupdesc<\/li>\n<li>vector&lt;GroupUser&gt; users&#xff1a;\u7fa4\u5185\u6210\u5458\u5217\u8868<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>include\/server\/group.hpp<\/p>\n<p>\/\/ group\u7684ORM\u7c7b<\/p>\n<p>#ifndef GROUP_HPP<br \/>\n#define GROUP_HPP<\/p>\n<p>#include &lt;string&gt;<br \/>\n#include &lt;vector&gt;<br \/>\nusing namespace std;<br \/>\n#include &#034;groupuser.hpp&#034;<\/p>\n<p>class Group<br \/>\n{<br \/>\n    public:<br \/>\n    \/\/ \u7fa4\u7ec4\u7684\u6784\u9020\u51fd\u6570<br \/>\n    Group(int id&#061;-1, string name&#061;&#034;&#034;, string desc&#061;&#034;&#034;)<br \/>\n    {<br \/>\n        this-&gt;id &#061; id;<br \/>\n        this-&gt;name &#061; name;<br \/>\n        this-&gt;desc &#061; desc;<br \/>\n    }<\/p>\n<p>    void setId(int id)<br \/>\n    {<br \/>\n        this-&gt;id &#061; id;<br \/>\n    }<br \/>\n    void setName(string name)<br \/>\n    {<br \/>\n        this-&gt;name &#061; name;<br \/>\n    }<br \/>\n    void setDesc(string desc)<br \/>\n    {<br \/>\n        this-&gt;desc &#061; desc;<br \/>\n    }<br \/>\n    int getId()<br \/>\n    {<br \/>\n        return this-&gt;id;<br \/>\n    }<br \/>\n    string getName()<br \/>\n    {<br \/>\n        return this-&gt;name;<br \/>\n    }<br \/>\n    string getDesc()<br \/>\n    {<br \/>\n        return this-&gt;desc;<br \/>\n    }<br \/>\n    \/\/ \u7fa4\u7ec4\u7684\u6210\u5458\u5217\u8868<br \/>\n    vector&lt;GroupUser&gt; &amp;getUsers()<br \/>\n    {<br \/>\n        return this-&gt;users;<br \/>\n    }<\/p>\n<p>private:<br \/>\n    int id; \/\/ \u7fa4\u7ec4id<br \/>\n    string name; \/\/ \u7fa4\u7ec4\u540d\u79f0<br \/>\n    string desc; \/\/ \u7fa4\u7ec4\u63cf\u8ff0<br \/>\n    vector&lt;GroupUser&gt; users; \/\/ \u7fa4\u7ec4\u6210\u5458id\u5217\u8868<\/p>\n<p>};<\/p>\n<p>#endif<\/p>\n<h3>GroupUser \u7c7b<\/h3>\n<ul>\n<li>\u7ee7\u627f\u81ea User \u7c7b&#xff0c;\u589e\u52a0 grouprole \u5b57\u6bb5\u3002<\/li>\n<li>\u8868\u793a\u201c\u67d0\u4e2a\u7fa4\u5185\u201d\u7684\u4e00\u4e2a\u7528\u6237\u3002<\/li>\n<li>\u65b9\u4fbf\u5728\u7fa4\u6210\u5458\u5217\u8868\u4e2d\u4f53\u73b0\u5176\u89d2\u8272\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u7fa4\u6210\u5458\u4e0d\u4ec5\u8981\u6709\u7528\u6237\u4fe1\u606f&#xff0c;\u8fd8\u9700\u77e5\u9053\u5176\u5728\u7fa4\u5185\u8eab\u4efd\u3002<\/p>\n<p>\u7ee7\u627f &#043; \u6269\u5c55\u5b57\u6bb5\u662f\u4e00\u79cd\u6e05\u6670\u53ef\u7ef4\u62a4\u7684\u505a\u6cd5\u3002<\/p>\n<p>include\/server\/groupuser.hpp<\/p>\n<p>#ifndef GROUPUSER_H<br \/>\n#define GROUPUSER_H<\/p>\n<p>#include &lt;string&gt;<br \/>\nusing namespace std;<br \/>\n#include &#034;user.hpp&#034;<\/p>\n<p>\/\/ \u7fa4\u7ec4\u7528\u6237, \u591a\u4e86\u4e00\u4e2a\u89d2\u8272\u5c5e\u6027, \u4eceUser\u7c7b\u7ee7\u627f<br \/>\nclass GroupUser: public User<br \/>\n{<br \/>\npublic:<br \/>\n    void setRole(string role)<br \/>\n    {<br \/>\n        this-&gt;role &#061; role;<br \/>\n    }<br \/>\n    string getRole()<br \/>\n    {<br \/>\n        return this-&gt;role;<br \/>\n    }<\/p>\n<p>private:<br \/>\n    string role; \/\/ \u7fa4\u7ec4\u89d2\u8272<\/p>\n<p>};<\/p>\n<p>#endif<\/p>\n<h3>GroupModel&#xff08;\u6570\u636e\u8bbf\u95ee\u5c42&#xff09;<\/h3>\n<p>1. \u521b\u5efa\u7fa4\u7ec4 createGroup<\/p>\n<ul>\n<li>\u63d2\u5165 allgroup \u8868\u3002<\/li>\n<li>\u83b7\u53d6\u751f\u6210\u7684\u81ea\u589eID&#xff0c;\u586b\u56de Group \u5bf9\u8c61\u3002<\/li>\n<li>\u9ed8\u8ba4\u5c06\u521b\u5efa\u8005\u6dfb\u52a0\u5230 groupuser \u8868&#xff0c;\u89d2\u8272\u4e3a creator\u3002<\/li>\n<\/ul>\n<p>2. \u52a0\u5165\u7fa4\u7ec4 addGroup<\/p>\n<ul>\n<li>\u63d2\u5165 groupuser \u8868&#xff0c;\u89d2\u8272\u4e3a normal\u3002<\/li>\n<li>\u82e5\u8054\u5408\u4e3b\u952e\u5b58\u5728&#xff0c;\u907f\u514d\u91cd\u590d\u63d2\u5165\u3002<\/li>\n<\/ul>\n<p>3. \u67e5\u8be2\u7528\u6237\u6240\u6709\u7fa4\u7ec4\u53ca\u6210\u5458\u4fe1\u606f queryGroups<\/p>\n<ul>\n<li>\u7b2c\u4e00\u6b65&#xff1a; \u67e5\u8be2\u7528\u6237\u6240\u5728\u7fa4\u7684\u57fa\u672c\u4fe1\u606f&#xff08;\u8054\u5408\u67e5\u8be2 groupuser &#043; allgroup&#xff09;\u3002<\/li>\n<li>\u7b2c\u4e8c\u6b65&#xff1a; \u5bf9\u6bcf\u4e2a\u7fa4&#xff0c;\u518d\u67e5\u8be2\u5176\u6240\u6709\u6210\u5458&#xff08;\u8054\u5408\u67e5\u8be2 groupuser &#043; user&#xff09;\u3002<\/li>\n<li>\u6784\u5efa\u5b8c\u6574\u7684 vector&lt;Group&gt;&#xff0c;\u5176\u4e2d\u6bcf\u4e2a Group \u5305\u542b vector&lt;GroupUser&gt; \u6210\u5458\u3002<\/li>\n<\/ul>\n<p>\u67e5\u8be2\u4f18\u5316\u601d\u8def&#xff1a;<\/p>\n<ul>\n<li>\u5229\u7528 \u591a\u8868\u8054\u5408\u67e5\u8be2 \u4e00\u6b21\u6027\u83b7\u53d6\u7ed3\u6784\u5316\u6570\u636e&#xff0c;\u51cf\u5c11\u6570\u636e\u5e93\u8fde\u63a5\u6b21\u6570\u3002<\/li>\n<li>\u907f\u514d\u201c\u67e5group ID\u540e&#xff0c;\u518d\u67e5group info&#xff0c;\u518d\u67e5group members\u201d\u7684\u591a\u6b21\u5faa\u73af\u67e5\u6cd5\u3002<\/li>\n<\/ul>\n<p>4. \u67e5\u8be2\u67d0\u4e2a\u7fa4\u5185\u9664\u81ea\u5df1\u5916\u7684\u6240\u6709\u6210\u5458 ID&#xff08;\u7528\u4e8e\u7fa4\u804a\u8f6c\u53d1&#xff09;<\/p>\n<ul>\n<li>\u7528\u4e8e\u7fa4\u804a\u65f6&#xff0c;\u627e\u51fa\u63a5\u6536\u65b9\u7528\u6237ID\u3002<\/li>\n<li>SQL&#xff1a;select userid from groupuser where groupid &#061; ? and userid !&#061; ?<\/li>\n<\/ul>\n<p>include\/server\/groupmodel.hpp<\/p>\n<p>#ifndef GROUPMODEL_HPP<br \/>\n#define GROUPMODEL_HPP<\/p>\n<p>#include &#034;group.hpp&#034;<\/p>\n<p>class GroupModel<br \/>\n{<br \/>\n    public:<br \/>\n    bool createGroup(Group &amp;group); \/\/ \u521b\u5efa\u7fa4\u7ec4<\/p>\n<p>    \/\/ \u52a0\u5165\u7fa4\u7ec4<br \/>\n    bool addGroup(int groupid, int userid, string role);<\/p>\n<p>    \/\/ \u67e5\u8be2\u7528\u6237\u6240\u5728\u7fa4\u7ec4<br \/>\n    vector&lt;Group&gt; queryGroups(int userid);<\/p>\n<p>    \/\/ \u6839\u636e\u6307\u5b9a\u7fa4\u7ec4id\u67e5\u8be2\u7fa4\u7ec4\u7528\u6237id\u5217\u8868, \u9664\u4e86\u81ea\u5df1, \u4e3b\u8981\u7528\u6237\u7fa4\u804a\u4e1a\u52a1<br \/>\n    vector&lt;int&gt; queryGroupUsers(int userid, int groupid);<br \/>\n};<br \/>\n#endif<\/p>\n<p>src\/server\/groupmodel.cpp<\/p>\n<p>\u67e5\u8be2\u7528\u6237\u6240\u5728id \u7684 \u51fd\u6570, \u53ef\u4ee5\u4f18\u5316\u4e3a \u53ea\u8fdb\u884c\u4e00\u6b21 mysql\u67e5\u8be2, \u4f7f\u7528\u4e09\u8868\u8054\u5408\u67e5\u8be2<\/p>\n<p>#include &#034;groupmodel.hpp&#034;<br \/>\n#include &lt;db.h&gt;<\/p>\n<p>bool GroupModel::createGroup(Group &amp;group) \/\/ \u521b\u5efa\u7fa4\u7ec4<br \/>\n{<br \/>\n    \/\/ sql\u8bed\u53e5<br \/>\n    char sql[1024] &#061; {0};<br \/>\n    sprintf(sql, &#034;insert into allgroup(groupname, groupdesc) values(&#039;%s&#039;, &#039;%s&#039;)&#034;,<br \/>\n            group.getName().c_str(), group.getDesc().c_str());<\/p>\n<p>    \/\/ \u8fde\u63a5\u6570\u636e\u5e93<br \/>\n    MySQL mysql;<br \/>\n    if (mysql.connect())<br \/>\n    {<br \/>\n        if (mysql.update(sql))<br \/>\n        {<br \/>\n            \/\/ \u83b7\u53d6\u63d2\u5165\u7684id<br \/>\n            group.setId(mysql_insert_id(mysql.getConnection()));<br \/>\n            return true;<br \/>\n        }<br \/>\n    }<br \/>\n    return false;<br \/>\n}<\/p>\n<p>\/\/ \u52a0\u5165\u7fa4\u7ec4<br \/>\nbool GroupModel::addGroup(int groupid, int userid, string role)<br \/>\n{<br \/>\n    \/\/ sql\u8bed\u53e5<br \/>\n    char sql[1024] &#061; {0};<br \/>\n    sprintf(sql, &#034;insert into groupuser(groupid, userid, grouprole) values(%d, %d, &#039;%s&#039;)&#034;,<br \/>\n            groupid, userid, role.c_str());<\/p>\n<p>    \/\/ \u8fde\u63a5\u6570\u636e\u5e93<br \/>\n    MySQL mysql;<br \/>\n    if (mysql.connect())<br \/>\n    {<br \/>\n        if (mysql.update(sql))<br \/>\n        {<br \/>\n            return true;<br \/>\n        }<br \/>\n    }<br \/>\n    return false;<br \/>\n}<\/p>\n<p>\/\/ \u67e5\u8be2\u7528\u6237\u6240\u5728\u7fa4\u7ec4&#8212;\u8054\u5408\u67e5\u8be2, \u76f4\u63a5\u53d6\u51fa\u7fa4\u7ec4\u7684 \u5168\u90e8\u4fe1\u606f<br \/>\n\/\/ \u6839\u636e\u7528\u6237id\u67e5\u8be2\u7fa4\u7ec4id, \u518d\u6839\u636e\u7fa4\u7ec4id\u67e5\u8be2\u7fa4\u7ec4\u4fe1\u606f<br \/>\nvector&lt;Group&gt; GroupModel::queryGroups(int userid)<br \/>\n{<br \/>\n    \/\/ 1.\u5148\u67e5\u8be2\u7528\u6237\u6240\u5728\u7684\u6240\u6709\u7fa4\u7ec4\u7684 \u7fa4\u7ec4\u4fe1\u606f<br \/>\n    \/\/ sql\u8bed\u53e5<br \/>\n    char sql[1024] &#061; {0};<br \/>\n    sprintf(sql, &#034;select a.id, a.groupname, a.groupdesc from allgroup a inner join groupuser b on a.id &#061; b.groupid where b.userid &#061; %d&#034;, userid);<\/p>\n<p>    \/\/ \u8fde\u63a5\u6570\u636e\u5e93<br \/>\n    MySQL mysql;<br \/>\n    vector&lt;Group&gt; groupVec; \/\/ \u5b58\u50a8\u7fa4\u7ec4\u4fe1\u606f\u4ee5\u53ca\u7fa4\u7ec4\u7528\u6237\u4fe1\u606f<br \/>\n    if (mysql.connect())<br \/>\n    {<br \/>\n        MYSQL_RES *res &#061; mysql.query(sql);<br \/>\n        if (res !&#061; nullptr)<br \/>\n        {<\/p>\n<p>            while (MYSQL_ROW row &#061; mysql_fetch_row(res))<br \/>\n            {<br \/>\n                Group group;<br \/>\n                group.setId(atoi(row[0]));<br \/>\n                group.setName(row[1]);<br \/>\n                group.setDesc(row[2]);<br \/>\n                groupVec.push_back(group);<br \/>\n            }<br \/>\n            mysql_free_result(res);<br \/>\n        }<br \/>\n        \/\/ 2.\u67e5\u8be2\u6bcf\u4e2a\u7fa4\u7ec4\u7684\u5176\u4ed6\u7528\u6237\u4fe1\u606f&#8212;\u7fa4\u7ec4\u7528\u6237id\u5217\u8868<br \/>\n        for (auto &amp;group : groupVec) \/\/ \u6ce8\u610f\u8fd9\u91cc\u662f\u5f15\u7528, \u4e0d\u80fd\u7528auto group : groupVec<br \/>\n        {<br \/>\n            sprintf(sql, &#034;select a.id,a.name, a.state,b.grouprole from user a inner join groupuser b on a.id &#061; b.userid where b.groupid &#061; %d&#034;, group.getId());<br \/>\n            MYSQL_RES *res &#061; mysql.query(sql);<br \/>\n            if (res !&#061; nullptr)<br \/>\n            {<br \/>\n                while (MYSQL_ROW row &#061; mysql_fetch_row(res))<br \/>\n                {<br \/>\n                    GroupUser user;<br \/>\n                    user.setId(atoi(row[0]));<br \/>\n                    user.setName(row[1]);<br \/>\n                    user.setState(row[2]);<br \/>\n                    user.setRole(row[3]); \/\/ \u7fa4\u7ec4\u89d2\u8272<br \/>\n                    \/\/ \u5c06\u7528\u6237\u6dfb\u52a0\u5230\u7fa4\u7ec4\u5bf9\u8c61\u4e2d<br \/>\n                    group.getUsers().push_back(user);<br \/>\n                }<br \/>\n                mysql_free_result(res);<br \/>\n            }<br \/>\n        }<\/p>\n<p>        return groupVec;<br \/>\n    }<\/p>\n<p>    return vector&lt;Group&gt;();<br \/>\n}<\/p>\n<p>\/\/ \u6839\u636e\u6307\u5b9a\u7fa4\u7ec4id\u67e5\u8be2\u7fa4\u7ec4\u7528\u6237id\u5217\u8868, \u9664\u4e86\u81ea\u5df1<br \/>\n\/\/ \u7fa4\u804a\u8f6c\u53d1\u4e1a\u52a1!!!, \u901a\u8fc7\u7fa4\u7ec4id\u67e5\u8be2\u7fa4\u7ec4\u7528\u6237id\u5217\u8868<br \/>\nvector&lt;int&gt; GroupModel::queryGroupUsers(int userid, int groupid)<br \/>\n{<br \/>\n    \/\/ sql\u8bed\u53e5<br \/>\n    char sql[1024] &#061; {0};<br \/>\n    \/\/ \u7ecf\u8fc7\u4e0a\u9762\u7684\u67e5\u8be2\u7528\u6237\u6240\u5728\u7fa4\u7ec4\u7684\u51fd\u6570, \u6bcf\u4e2a\u7fa4\u7ec4\u7684\u7528\u6237id\u90fd\u5df2\u7ecf\u5b58\u50a8\u5728\u4e86\u6570\u636e\u5e93\u4e2d<br \/>\n    sprintf(sql, &#034;select userid from groupuser where groupid &#061; %d and userid !&#061; %d&#034;, groupid, userid);<\/p>\n<p>    \/\/ \u8fde\u63a5\u6570\u636e\u5e93<br \/>\n    MySQL mysql;<br \/>\n    vector&lt;int&gt; userVec; \/\/ \u5b58\u50a8\u7fa4\u7ec4\u7528\u6237id\u5217\u8868<br \/>\n    if (mysql.connect())<br \/>\n    {<br \/>\n        MYSQL_RES *res &#061; mysql.query(sql);<br \/>\n        if (res !&#061; nullptr)<br \/>\n        {<br \/>\n            while (MYSQL_ROW row &#061; mysql_fetch_row(res))<br \/>\n            {<br \/>\n                userVec.push_back(atoi(row[0]));<br \/>\n            }<br \/>\n            mysql_free_result(res);<br \/>\n            return userVec;<br \/>\n        }<br \/>\n    }<br \/>\n    return vector&lt;int&gt;();<br \/>\n}<\/p>\n<h3>\u6dfb\u52a0\u7fa4\u804a\u4e1a\u52a1<\/h3>\n<p>include\/public.hpp<\/p>\n<p>CREATE_GROUP_MSG, \/\/ \u521b\u5efa\u7fa4\u7ec4<br \/>\nADD_GROUP_MSG, \/\/ \u6dfb\u52a0\u7fa4\u7ec4<br \/>\nGROUP_CHAT_MSG, \/\/ \u7fa4\u804a<\/p>\n<p>include\/server\/chatservice.hpp<\/p>\n<p>    \/\/ \u5904\u7406\u7fa4\u7ec4\u4e1a\u52a1<br \/>\n    GroupModel _groupModel;<\/p>\n<p>    \/\/ \u5904\u7406\u521b\u5efa\u7fa4\u7ec4\u4e1a\u52a1<br \/>\n    void createGroup(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time);<\/p>\n<p>    \/\/ \u5904\u7406\u6dfb\u52a0\u7fa4\u7ec4\u4e1a\u52a1<br \/>\n    void addGroup(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time);<\/p>\n<p>    \/\/ \u5904\u7406\u7fa4\u7ec4\u804a\u5929\u4e1a\u52a1<br \/>\n    void groupChat(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time);<\/p>\n<p>src\/server\/chatservice.cpp<\/p>\n<p>\/\/ \u5904\u7406\u521b\u5efa\u7fa4\u7ec4\u4e1a\u52a1<br \/>\nvoid ChatService::createGroup(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time)<br \/>\n{<br \/>\n    int uerid &#061; js[&#034;id&#034;].get&lt;int&gt;();  \/\/ \u8fd9\u662f \u54ea\u4e2a\u7528\u6237\u8981\u521b\u5efa\u7fa4\u7ec4,  \u4e0d\u662f\u7fa4\u7ec4id<br \/>\n    string groupname &#061; js[&#034;groupname&#034;];<br \/>\n    string groupdesc &#061; js[&#034;groupdesc&#034;];<\/p>\n<p>    \/\/ \u5b58\u50a8\u65b0\u521b\u5efa\u7684\u7fa4\u7ec4\u4fe1\u606f&#8212;&#8211;\u6b64\u65f6\u8fd8\u672a\u6dfb\u52a0\u5230 \u6570\u636e\u5e93, \u7fa4id\u8fd8\u672a\u77e5<br \/>\n    Group group(-1, groupname, groupdesc);<\/p>\n<p>    if(_groupModel.createGroup(group))<br \/>\n    {<br \/>\n        \/\/ \u521b\u5efa\u7fa4\u540e, \u5b58\u50a8\u7fa4\u7ec4\u521b\u5efa\u4eba \u4fe1\u606f<br \/>\n        _groupModel.addGroup(group.getId(), uerid, &#034;creator&#034;);<br \/>\n        \/\/ \u670d\u52a1\u5668\u54cd\u5e94 \u53ef\u4ee5\u81ea\u884c\u6dfb\u52a0<br \/>\n    }<\/p>\n<p>}<\/p>\n<p>\/\/ \u5904\u7406\u6dfb\u52a0\u7fa4\u7ec4\u4e1a\u52a1<br \/>\nvoid ChatService::addGroup(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time)<br \/>\n{<br \/>\n    int userid &#061; js[&#034;id&#034;].get&lt;int&gt;();<br \/>\n    int groupid &#061; js[&#034;groupid&#034;].get&lt;int&gt;();<\/p>\n<p>    \/\/ \u6dfb\u52a0\u7fa4\u7ec4<br \/>\n    _groupModel.addGroup(groupid, userid, &#034;normal&#034;);<br \/>\n}<\/p>\n<p>\/\/ \u5904\u7406\u7fa4\u7ec4\u804a\u5929\u4e1a\u52a1<br \/>\nvoid ChatService::groupChat(const TcpConnectionPtr &amp;conn, json &amp;js, Timestamp time)<br \/>\n{<br \/>\n    int userid &#061; js[&#034;id&#034;].get&lt;int&gt;();<br \/>\n    int groupid &#061; js[&#034;groupid&#034;].get&lt;int&gt;();<br \/>\n    vector&lt;int&gt; userVec &#061; _groupModel.queryGroupUsers(userid, groupid); \/\/ \u7fa4\u7ec4\u7528\u6237id\u5217\u8868<\/p>\n<p>    \/\/ \u7fa4\u7ec4\u804a\u5929, \u9700\u8981\u5c06\u6d88\u606f\u8f6c\u53d1\u7ed9\u7fa4\u7ec4\u4e2d\u7684\u6240\u6709\u7528\u6237<br \/>\n    lock_guard&lt;mutex&gt; lock(_connMutex);<br \/>\n    for(int id : userVec)<br \/>\n    {<br \/>\n        \/\/ \u7528\u6237\u5728\u7ebf, \u5c31\u76f4\u63a5\u8f6c\u53d1<br \/>\n        auto it &#061; _userConnMap.find(id);<br \/>\n        if(it !&#061; _userConnMap.end())<br \/>\n        {<br \/>\n            \/\/ \u5728\u7ebf, \u8f6c\u53d1\u6d88\u606f<br \/>\n            it-&gt;second-&gt;send(js.dump());<br \/>\n        }<br \/>\n        else<br \/>\n        {<br \/>\n            \/\/ \u4e0d\u5728\u7ebf, \u5b58\u50a8\u79bb\u7ebf\u6d88\u606f<br \/>\n            _offlineMsg.insert(id, js.dump());<br \/>\n        }<br \/>\n    }<\/p>\n<p>}<\/p>\n<h2>\u7fa4\u7ec4\u9636\u6bb5\u9762\u8bd5\u95ee\u9898<\/h2>\n<h5>1. \u9879\u76ee\u4ecb\u7ecd\u600e\u4e48\u8bb2<\/h5>\n<ul>\n<li>\u5148\u8bf4\u6574\u4f53\u67b6\u6784&#xff08;\u5ba2\u6237\u7aef &#043; \u670d\u52a1\u7aef &#043; \u6570\u636e\u5e93&#xff09;\u3002<\/li>\n<li>\u5f3a\u8c03\u4f7f\u7528\u4e86\u591a\u7ebf\u7a0b\u3001\u7f51\u7edc\u5e93&#xff08;\u5982 muduo&#xff09;\u3001\u591a\u8868\u8054\u5408\u67e5\u8be2\u3001\u79bb\u7ebf\u6d88\u606f\u5904\u7406\u7b49\u3002<\/li>\n<li>\u7fa4\u804a\u4e1a\u52a1\u6db5\u76d6&#xff1a;\u5efa\u7fa4\u3001\u52a0\u7fa4\u3001\u7fa4\u804a\u6d88\u606f\u8f6c\u53d1&#xff0c;\u7a81\u51fa\u7ebf\u7a0b\u5b89\u5168\u5904\u7406\u3001connection map\u3001model \u5c42\u5c01\u88c5\u7b49\u8bbe\u8ba1\u3002<\/li>\n<\/ul>\n<h5>2. \u9762\u8bd5\u5b98\u5e38\u95ee\u70b9<\/h5>\n<ul>\n<li>\u4f60\u8fd9\u4e2a\u9879\u76ee\u6570\u636e\u5e93\u6709\u54ea\u4e9b\u8868&#xff1f;\n<ul>\n<li>\u7b54&#xff1a;user\u3001friend\u3001group\u3001group_user\u3001offline_message \u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u6570\u636e\u91cf\u591a\u5c11&#xff1f;\n<ul>\n<li>\u522b\u8bf4 100 \u4e07\u3001500 \u4e07\u7ea7\u522b&#xff0c;\u4f1a\u88ab\u8ffd\u95ee\u201c\u4f60\u600e\u4e48\u4f18\u5316&#xff1f;\u8868\u600e\u4e48\u62c6&#xff1f;\u201d\u3002<\/li>\n<li>\u5efa\u8bae\u8bf4\u201c\u4e07\u7ea7\u201d&#xff0c;\u6bd4\u5982 1~2 \u4e07\u884c&#xff0c;\u5408\u7406\u4e14\u771f\u5b9e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>3. \u5bb9\u6613\u7ffb\u8f66\u7684\u5730\u65b9<\/h5>\n<ul>\n<li>\u522b\u4e00\u5f20\u5634\u5c31\u8bf4\u201c\u6211\u8868\u91cc 100 \u4e07\u6570\u636e\u201d&#xff0c;\u4f1a\u88ab\u95ee\u7206&#xff1a;\n<ul>\n<li>\u8868\u7684\u7d22\u5f15\u600e\u4e48\u8bbe\u8ba1&#xff1f;<\/li>\n<li>\u662f\u5426\u505a\u4e86 \u6c34\u5e73\/\u5782\u76f4\u62c6\u8868&#xff1f;<\/li>\n<li>\u6709\u6ca1\u6709\u7528 \u5206\u5e93\u5206\u8868\u5de5\u5177&#xff08;\u5982 ShardingSphere&#xff09;&#xff1f;<\/li>\n<\/ul>\n<\/li>\n<li>\u6570\u636e\u91cf\u5439\u592a\u5927&#xff0c;\u9762\u8bd5\u5b98\u4f1a\u8d28\u7591\u4f60\u662f\u5426\u771f\u7684\u505a\u8fc7\u9879\u76ee\u3002<\/li>\n<\/ul>\n<h5>4. \u52a0\u5206\u70b9<\/h5>\n<ul>\n<li>\u4e3b\u52a8\u63d0\u5230&#xff1a;\n<ul>\n<li>\u4f7f\u7528\u4e86\u7ebf\u7a0b\u6c60&#043;IO\u7ebf\u7a0b\u6a21\u578b\u3002<\/li>\n<li>\u4f7f\u7528 STL map \u505a\u8fde\u63a5\u7ba1\u7406&#xff0c;\u4f46\u6ce8\u610f\u4e86\u7ebf\u7a0b\u4e0d\u5b89\u5168\u95ee\u9898&#xff0c;\u52a0\u9501\u5904\u7406\u3002<\/li>\n<li>\u5c06\u4ee3\u7801\u7ed3\u6784\u5206\u5c42&#xff08;model \u5c42\u62bd\u8c61\u6570\u636e\u903b\u8f91&#xff0c;service \u5c42\u5904\u7406\u4e1a\u52a1&#xff0c;server \u5c42\u5904\u7406\u7f51\u7edc\u901a\u4fe1&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>5. \u522b\u5fd8\u4e86\u8fd9\u4e9b\u7ec6\u8282<\/h5>\n<ul>\n<li>CMake \u9879\u76ee\u7ed3\u6784\u662f\u5426\u6e05\u6670&#xff0c;\u6709\u6ca1\u6709\u8003\u8651 include \u8def\u5f84\u3001\u6a21\u5757\u62c6\u5206\u3002<\/li>\n<li>\u804a\u7fa4\u7ec4\u4e1a\u52a1\u65f6\u8981\u63d0\u5230 \u8054\u5408\u67e5\u8be2&#xff08;\u4ece group_user \u8868\u67e5\u6210\u5458&#xff0c;\u8f6c\u53d1\u6d88\u606f&#xff09;\u3002<\/li>\n<li>\u5982\u4f55\u505a\u79bb\u7ebf\u6d88\u606f\u5b58\u50a8&#xff08;\u5b58\u5230 offline_message \u8868&#xff09;\u3002<\/li>\n<\/ul>\n<h2>\u5bf9\u4e8ec&#043;&#043;, \u4e1a\u52a1\u4e0d\u91cd\u8981!!!<\/h2>\n<p>\u4e1a\u52a1\u662f\u5f88\u7075\u6d3b\u7684,<\/p>\n<h4>\u4e3a\u4ec0\u4e48 C&#043;&#043; \u66f4\u9002\u5408\u505a\u5e95\u5c42&#xff0c;\u4e0d\u662f\u4e1a\u52a1\u903b\u8f91&#xff1f;<\/h4>\n<li>C&#043;&#043; \u66f4\u9002\u5408\u7cfb\u7edf\u5f00\u53d1&#xff1a;\u64c5\u957f\u9ad8\u6027\u80fd\u3001\u9ad8\u5e76\u53d1\u3001\u5e95\u5c42\u63a7\u5236&#xff08;\u5982\u7f51\u7edc\u901a\u4fe1\u3001\u5185\u5b58\u7ba1\u7406\u3001\u7ebf\u7a0b\u63a7\u5236&#xff09;\u3002<\/li>\n<li>\u4e1a\u52a1\u903b\u8f91\u9002\u5408\u7528\u5176\u4ed6\u8bed\u8a00&#xff1a;\u50cf Java\u3001Go \u8fd9\u6837\u7684\u8bed\u8a00&#xff0c;\u5f00\u53d1\u6548\u7387\u66f4\u9ad8&#xff0c;\u9002\u5408\u5feb\u901f\u5b9e\u73b0\u4e1a\u52a1\u9700\u6c42\u3002<\/li>\n<li>C&#043;&#043; \u505a\u6838\u5fc3\u6a21\u5757&#xff1a;\u50cf\u96c6\u7fa4\u804a\u5929\u4e2d\u7684\u957f\u8fde\u63a5\u3001\u6d88\u606f\u8f6c\u53d1\u5f15\u64ce\u7b49&#xff0c;\u7531 C&#043;&#043; \u63d0\u4f9b\u9ad8\u6027\u80fd\u652f\u6301\u3002<\/li>\n<li>Go \/ Java 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