即使不是文本MIME类型，Undertow也会始终向Content-Type标头添加charset

Question

If I try to set the content type to "image/jpg" in a servlet

response.setContentType("image/jpg")

I get

Content-Type: image/jpg;charset=ISO-8859-1

The default servlet works well instead.

How can I get rid of charset for non text mime types?

Answer 1

问题是我使用resp.getWriter（）而不是resp.getOutputStream（）来提供图像。