const express = require('express')
const cors=require('cors')
const app = express()
app.use(cors())//解决跨域
//以下注释部分据说是另一种解决跨域问题的方法
// app.all('*', function(req, res, next) { //设置跨域访问
// res.header("Access-Control-Allow-Origin", "*");
// res.header("Access-Control-Allow-Headers", "X-Requested-With");
// res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");
// res.header("X-Powered-By",' 3.2.1');
// res.header("Content-Type", "application/json;charset=utf-8");
// next();
// });
var infor = [ //定义一个数组数据，待会通过请求传给前端
{
name:'jay',
age:20,
sex:'男',
hobby:'zzzz'
}
]
//定义接口路由
app.get('/',function(req,res){
res.status(200),
res.json(infor)
})
const server=app.listen(5200,function () {
const {address,port}=server.address()
console.log('http server is running http://%s :%s', address, port);
})；
//链接方式 get http://localhost:5200/
