注册邮件中的链接无host

 

在注册邮件中用命名路由的xxx_url不起作用，导致注册邮件中的链接无host。

 

原因：

Because mailers aren't run inside the response stack, they have no idea what host they were called from: that's why you're running into this error. It's easy to fix, change the code to include the host:

 

解决：

config.action_mailer.default_url_options ={:host =>"example.com"}

其他问题：

  不同环境的问题，就根据各自的配置来解决吧。

 

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