first commit

历届学生/韩想/每日课程/2020-08-17/back/index.js

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+const express = require('express')
+const request = require('request')
+const app = express()
+const port = 3000
+
+app.all('*', function (req, res, next) {
+    res.header('Access-Control-Allow-Origin', '*');
+    res.header('Content-Type', 'application/json;charset=utf-8');
+    next();
+});
+
+app.get('/api/zj', (req, res) => {
+    request('http://127.0.0.1:4000/api/br', function (error, response, body) {
+        res.json(body)
+    });
+})
+
+app.listen(port, () => console.log(`Example app listening on port ${port}!`))