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  • 2019-04-27 14:57 来源:未知

5:服务器端启动文件

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const express = require("express");
var bodyParser=require('body-parser');
const app = express();
const api = require('./router/api')
 
// 跨域设置
app.all("*"function(req, res, next) {
    res.header("Access-Control-Allow-Credentials"true);
    res.header("Access-Control-Allow-Origin""*");
    res.header("Access-Control-Allow-Methods""PUT,POST,GET,DELETE,OPTIONS");
    res.header("Content-Type""application/json;charset=utf-8");
    // 设置请求头类型 添加token
    res.header('Access-Control-Allow-Headers''Content-Type, Content-Length, Authorization, Accept, X-Requested-With , yourHeaderFeild');
    next();
});
 
app.use(bodyParser.urlencoded({extended:true}));
 
app.use("/api", api);
 
app.get('/', (req, res) => {
    res.send('Hello World');
});
 
const port = process.env.PORT || 3001;
 
app.listen(port, () => {
    console.log('Express server listening on port ' + port);
});
 
module.exports = app;
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