js解析json数据

js代码

const fs_port = require("fs");
let rawdata = fs_port.readFileSync("Config.json");
json_data =JSON.parse(rawdata);
Ip_=json_data.host
port_=json_data.port
console.log("host:%s port:%s",Ip_,port_)

json文件

{"host":"127.0.0.1","port":"5000","username":"admin","password":"admin"}