如何在node js中获取router.get()之外的变量

如何解决如何在node js中获取router.get()之外的变量

global.folder_name= null ;

// upload = uploadFunc.echo('ild')
// At Route /upload/ild
router.post('/',(req,res)=>{
    folder_name = req.body.folder_name;
    console.log(`inside route ${folder_name}`)
    res.status(200).redirect('/upload/ild/done')
    
})

upload = uploadFunc.echo(folder_name);
console.log(folder_name)


// At Route /upload/ild/
router.get('/done',upload.array('avatar'),res) => {


    return res.json({ status: 'OK' });
});

上面的代码在'/'路由内的控制台中给出未定义 我想从一个路由中获取文件夹名称并将其传递给另一条路由...

解决方法

第一个解决方案（全局变量）：

let folder_name = null;

router.post('/',(req,res)=> {
  folder_name = req.body.folder_name;
});

upload = uploadFunc.echo(folder_name);

第二种解决方案（使用路由器内部的上传块）：

router.post('/',res)=> {
  folder_name = req.body.folder_name;
  upload = uploadFunc.echo(folder_name);
});