修复bug

src/pages/20181112t6/src/components/app.js

@@ -30,13 +30,17 @@ class App extends Component {
 
       socket.on('broadcast_online_users', (data) => {
          if(data && data.onlineUsers) {
-            this.state.onlineUsers = data.onlineUsers;
+            this.setState({
+               onlineUsers:data.onlineUsers
+            });
          }
       });
    
       socket.on('online_users_change', (data) => {
          if(data && data.onlineUsers) {
-            this.state.onlineUsers = data.onlineUsers;
+            this.setState({
+               onlineUsers:data.onlineUsers
+            });
          }
       });
 
@@ -61,6 +65,8 @@ class App extends Component {
          });
       });
 
+      socket.emit('client_get_online_users', {});
+
       document.addEventListener("keydown",this.handleEnterKey);
    }
 
@@ -111,6 +117,13 @@ class App extends Component {
       });
    }
 
+   getOnlineUsers() {
+		setTimeout(function(){
+			socket.emit('client_get_online_users', {});
+			//getOnlineUsers();
+		},1000);
+	}
+
    render() {
       return (
          <div className="app">