Question

所以我有一堆文件，我希望用户能够通过提交表单下载（我想发送一个获取请求）。有人能告诉我如何更改我的观点，路线和app.js文件才能做到这一点？是否应该在index.js文件中处理路由（用户可以在哪里下载文件）？或者我应该使用app.js文件创建一个全新的路线？

编辑：我使用multer上传文件。

此时我的代码有点分散：

在app.js中我们有这个：

app.get('/download', function(req, res, next){
  var file = req.params.file
    , path = __dirname + '/uploads/' + file;

  res.download("upload/a.tiff");
});

在index.jade中我们有这个：

h2 Download
form(action="/download", method="get")
  input(type="submit", name="downLoad")

index.js文件中没有任何相关内容，但有一次我在app.js中有了我在index.js文件中列出的函数。这似乎不起作用。

现在我刚刚尝试下载一个a.tiff文件。

这是错误：

404

Error: Not Found
    at app.use.res.render.message (/Users/brennan/personal/dev/shareBetweenComputers/app.js:39:13)
    at Layer.handle [as handle_request] (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/layer.js:82:5)
    at trim_prefix (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:302:13)
    at /Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:270:7
    at Function.proto.process_params (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:321:12)
    at next (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:261:10)
    at /Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:603:15
    at next (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:246:14)
    at Function.proto.handle (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:166:3)
    at router (/Users/brennan/personal/dev/shareBetweenComputers/node_modules/express/lib/router/index.js:35:12)

我是否需要写下载路线？

Remote Address:127.0.0.1:3000
Request URL:http://localhost:3000/download?downLoad=Submit
Request Method:GET
Status Code:404 Not Found

如何使用Express和Node.js下载文件以响应表单

0 个答案: