// ... file selected from a file <input> file = event.target.files[0]; $.ajax({ url: 'https://content.dropboxapi.com/2/files/upload', type: 'post', data: file, processData: false, contentType: 'application/octet-stream', headers: { "Authorization": "Bearer <ACCESS_TOKEN>", "Dropbox-API-Arg": '{"path": "/test_upload.txt","mode": "add","autorename": true,"mute": false}' }, success: function (data) { console.log(data); }, error: function (data) { console.error(data); } })
<ACCESS_TOKEN> 应该用OAuth 2访问令牌替换。