[TiO websocket] v. TiO websocket server counts the number of online people

         In daily business , We often need to count the current number of online people , That is, connected websocket How many users are there , Discover... By reading the source code , stay org.tio.core Under the bag TioConfig The object of counting the number of people can be found in the file

1、 Source code interpretation

We can see that org.tio.core.TioConfig A large amount of data is recorded in the file , for example ： The startup time of the system , Ben jvm All of the TioConfig object , Heartbeat timeout and other data , Look down , You can see there's one users object , The connection is recorded here websocket All objects of ,Users What exists in this class mapWithLock Constant , It is used to record the connection information of users , And provides getMap() Method , In this way, we can easily get the real-time online number in the system

2、 Get real-time online people

• 1、 First, get the configuration file

//  Get profile 
ServerTioConfig serverTioConfig = WebSocketConfig.serverTioConfig;

We have already described how to get global data t-io Configuration file for , Get it directly

• 2、 Get start time

//  System start time 
long startTime  = serverTioConfig.startTime;

• 3、 Get real-time online people

//  Real time online population 
int users = serverTioConfig.users.getMap().size();

• 4、 obtain group Number of groups

//  Number of live groups 
int groups = serverTioConfig.groups.getGroupmap().size();

Need to obtain other statistics , You can read the source code

If you find deficiencies in reading , Welcome to leave a message ！！！