问

cURL无法连接到localhost但浏览器可以

xiejiahui62272 发布于 2023-02-05 12:34

服务器

我在本地运行Rails应用程序(瘦服务器),我可以从浏览器本地连接(localhost:3000),但是当我尝试使用curl时,我得到:

curl -H 'id:1' -i 'http://localhost:3000/api/data' -v

* Hostname was NOT found in DNS cache
*   Trying ::1...
* Adding handle: conn: 0x7fd121808200
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0x7fd121808200) send_pipe: 1, recv_pipe: 0
* Connection failed
* connect to ::1 port 3000 failed: Connection refused
*   Trying fe80::1...
* Connection failed
* connect to fe80::1 port 3000 failed: Connection refused
* Failed to connect to localhost port 3000: Connection refused
* Closing connection 0
curl: (7) Failed to connect to localhost port 3000: Connection refused

这曾经工作得很好,但我最近更新到小牛队,我怀疑可能已经破坏了一些东西.我也可以从网上成功卷曲.

2 个回答

这是一个卷曲错误(一个奇怪的错误),如果/ etc/hosts中的IPv6条目没有响应,则curl无法回退到IPv4.

您可以通过该-4选项强制它使用IPv4 .

2023-02-05 12:35 回答

mobiledu2502859233

代替

curl localhost:3000

尝试

curl 0.0.0.0:3000

有用.
如果没有,请在启动rails服务器时检查输出:

=> Booting WEBrick
=> Rails 3.2.13 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2014-10-28 15:30:08] INFO  WEBrick 1.3.1
[2014-10-28 15:30:08] INFO  ruby 2.0.0 (2014-02-24) [x86_64-darwin12.5.0]
[2014-10-28 15:30:08] INFO  WEBrick::HTTPServer#start: pid=4004 port=3000

使用第2行末尾的url而不是 ENV['HOST']

2023-02-05 12:36 回答

黄敬定241

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