body-parser模块，处理post请求
body-parser模块，处理post请求
//body-parser模块，处理post请求
var bodyParser = require('body-parser')
app.use(bodyParser.urlencoded({ extended: false }))
app.use(bodyParser.json())
app.all('*', function (req, res, next) {
res.header("Access-Control-Allow-Origin", "*");
res.header('Access-Control-Allow-Headers', "*");
res.header("Access-Control-Allow-Methods", "*");
res.header("Access-Control-Allow-Credentials", true);
next();
});
