不下载插件解决跨域
// 解决跨域问题
app.all('*', function(req, res, next) {
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();
}
);
下载core插件解决跨域
// corejs插件解决跨域问题
const cors = require('cors');
app.use(cors());
