first commit

历届学生/font-end-nine/项目练习/上课项目/聊天室/backend/index.js

@@ -0,0 +1,58 @@
+const { Server } = require("socket.io");
+
+const io = new Server(3000, {});
+
+var onlineUser = {
+  // '10086': [
+  //   {
+  //     name: '',
+  //     room: '',
+  //     img: '',
+  //     type: '', // 1群主  2管理  3 群成员
+  //   }
+  // ]
+}
+
+var chatRecord = {
+
+}
+
+io.on("connection", (socket) => {
+  console.log("客户端建立连接了...");
+
+  socket.on("UserLogin", function (arg) {
+    console.log(arg);
+    // 如果群已经存在
+    if (onlineUser.hasOwnProperty(arg.room)) {
+      arg.type = 3
+    } else {
+      arg.type = 1
+      onlineUser[arg.room] = []
+    }
+
+    onlineUser[arg.room].push(arg);
+    socket.join(arg.room);
+    io.in(arg.room).emit("SystemMessage", `欢迎${arg.name}加入群聊`);
+  })
+
+  socket.on("sendMessage", (arg) => {
+    if (!chatRecord.hasOwnProperty(arg.room)) {
+      chatRecord[arg.room] = []
+    }
+    chatRecord[arg.room].push(arg)
+    socket.to(arg.room).emit("PushMessage", arg);
+  });
+
+  socket.on("getOnlineUser", (arg) => {
+    io.in(arg.room).emit("PushOnlineUser", onlineUser[arg.room]);
+  });
+
+  socket.on("SetShake", (arg) => {
+    socket.to(arg.room).emit("PushShake");
+  });
+  
+
+  socket.on("disconnect", () => {
+    console.log("客户端断开连接了...");
+  });
+});