如何删除由 spring-boot 生成的 Content-Type 标头中的 charset=utf-8 [英] How to remove charset=utf-8 in a Content-Type header, generated by spring-boot

问题描述

我正在尝试在 spring-boot 中发送一个 mp4 文件作为响应正文.我尝试使用以下方法将 Content-Type 标头设置为 video/mp4:

I'm trying to send an mp4 file as a response body in spring-boot. I've tried setting the Content-Type header to video/mp4 using the following methods:

1. RequestMapping 注解参数:

1. A RequestMapping annotation parameter:

@RequestMapping(value = "/movie.mp4", method = RequestMethod.GET, produces = "video/mp4")

通过HttpHeaders手动设置一个header值，传递给返回ResponseEntity.

Manually setting a header value via HttpHeaders, passed to return ResponseEntity.

每次得到的header如下:

Each time the resulting header is as follows:

Content-Type:video/mp4; charset=UTF-8

如何去掉 charset=UTF-8 后缀?

推荐答案

经过调试，发现 HttpEncodingAutoConfiguration 设置了 spring.http.encoding.force=true.如果您在 application.properties 中将此设置为 false，则字符集将被省略.

It took some debugging, but I found that HttpEncodingAutoConfiguration sets spring.http.encoding.force=true. If you set this to false in your application.properties, the charset will be omitted.

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