如何实现socketServer

import socket from “@ohos.net.socket”; 
import { BusinessError } from ‘@ohos.base’; 
let tcpServer: socket.TCPSocketServer = socket.constructTCPSocketServerInstance(); 
let listenAddr: socket.NetAddress = { 
    address: ‘192.168.xx.xxx’, 
    port: 8080, 
    family: 1 
} 
tcpServer.listen(listenAddr, (err: BusinessError) => { 
    if (err) { 
        console.log(“listen fail”); 
        return; 
    } 
    console.log(“listen success”); 
})