Java : Unable to change 'Content-Disposition' attribute in the Header for a response

Question

下面是代码:

Resource resource = getResource(request, requestUrl, userInfo, objectIdParam,
        rootFolderId, pathInfo, overrideCharset, isThumbnailResource);

// New line added to change Content-Disposition
response.setHeader( "Content-Disposition", "attachment;filename=" + pathInfo );

if (resource != null && resource.isServable()) {
    resource.serve(request, response);
}

如您所见，我已明确尝试将 header 中的“Content-Disposition”更改为“attachment”。但是，当我打开 MS Office 文档时，HTTP header 数据将其显示为“内联”: 内容配置:内联； filename="New%20Microsoft%20Office%20Word%20Document.docx"

你认为我应该做些什么来纠正这个问题吗？

Answer 1

我怀疑 resource.serve 方法调用在内部用它自己的值覆盖 header 。

The javadoc说:

If the header had already been set, the new value overwrites the previous one. The containsHeader method can be used to test for the presence of a header before setting its value.