spring - Spring中的HTTP重定向: 301 (permanent) vs. 302(临时)

Question

我想在 Spring 中进行 301 重定向，所以这里是我使用的代码

@RequestMapping(value = { "/devices" } , method = RequestMethod.GET)
    private String initGetForm(@ModelAttribute("searchForm") final SearchForm searchForm,
                            BindingResult result, 
                            HttpServletRequest request,
                            HttpServletResponse response,
                            Model model, Locale locale) throws Exception {


        String newUrl = "/devices/en";

        response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
        response.setHeader("Location", newUrl);
        response.setHeader("Connection", "close");

        return "redirect:" + newUrl;

}

但是检查 IE 开发工具时我得到了这个状态 302 暂时移动!

Answer 1

Spring 在处理重定向时会重置您的响应 header ，因为您返回的是带有特殊重定向前缀的逻辑 View 名称。如果您想手动设置 header ，请自行处理响应而不使用 Spring View 解析。更改您的代码如下

@RequestMapping(value = { "/devices" } , method = RequestMethod.GET)
private void initGetForm(@ModelAttribute("searchForm") final SearchForm searchForm,
                                BindingResult result, 
                                HttpServletRequest request,
                                HttpServletResponse response,
                                Model model, Locale locale) throws Exception {

            String newUrl = request.getContextPath() + "/devices/en";
            response.setStatus(HttpServletResponse.SC_MOVED_PERMANENTLY);
            response.setHeader("Location", newUrl);
            response.setHeader("Connection", "close");

    }