java – Spring MVC：返回CSS

这是我的Spring测试方法：

@RequestMapping(value = "/stylesheet.css",method = RequestMethod.GET,produces = "text/css")
@ResponseBody
public void css(HttpServletResponse response) {
    File path = new File(servletContext.getRealPath("/WEB-INF/includes/css/"));

    File[] files = path.listFiles(...);

    for (File file : files) {
        InputStream is = new FileInputStream(file);
        IOUtils.copy(is,response.getOutputStream());
        response.flushBuffer();

        is.close();
    }
}

这适用于Chrome,Firefox和Safari,但不适用于IE和Opera.

在检查员中进行一些检查后,每个浏览器都会加载URL https：//host/project/stylesheet.css.我可以看到内容但它似乎没有被识别为text / css.

此外,即使使用produce =“text / css”,我也无法在所有浏览器中看到内容类型的http标头.

IE中的错误日志：

CSS ignored because of mime type incompatibility

有谁知道如何正确地做到这一点？

工作代码：

@RequestMapping(value = "/stylesheet.css",method = RequestMethod.GET)
public ResponseEntity<Void> css(HttpServletResponse response) {
    response.setContentType("text/css");

    File path = new File(servletContext.getRealPath("/WEB-INF/includes/css/"));

    File[] files = path.listFiles(...);

    for (File file : files) {
        InputStream is = new FileInputStream(file);
        IOUtils.copy(is,response.getOutputStream());
        IOUtils.closeQuietly(is);
    }

    response.flushBuffer();

    return new ResponseEntity<Void>(HttpStatus.OK);
}