对于最新稳定版本，请使用 Spring Framework 7.0.6！spring-doc.cadn.net.cn

RSS 和 Atom

AbstractAtomFeedView 和 AbstractRssFeedView 均继承自基类 AbstractFeedView，分别用于提供 Atom 和 RSS Feed 视图。它们基于 ROME 项目，位于 org.springframework.web.servlet.view.feed 包中。spring-doc.cadn.net.cn

AbstractAtomFeedView 要求你实现 buildFeedEntries() 方法，并可选择性地重写 buildFeedMetadata() 方法（默认实现为空）。以下示例展示了如何实现：spring-doc.cadn.net.cn

public class SampleContentAtomView extends AbstractAtomFeedView {

	@Override
	protected void buildFeedMetadata(Map<String, Object> model,
			Feed feed, HttpServletRequest request) {
		// implementation omitted
	}

	@Override
	protected List<Entry> buildFeedEntries(Map<String, Object> model,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		// implementation omitted
	}
}
class SampleContentAtomView : AbstractAtomFeedView() {

	override fun buildFeedMetadata(model: Map<String, Any>,
			feed: Feed, request: HttpServletRequest) {
		// implementation omitted
	}

	override fun buildFeedEntries(model: Map<String, Any>,
			request: HttpServletRequest, response: HttpServletResponse): List<Entry> {
		// implementation omitted
	}
}

实现 AbstractRssFeedView 也有类似的要求，如下例所示：spring-doc.cadn.net.cn

public class SampleContentRssView extends AbstractRssFeedView {

	@Override
	protected void buildFeedMetadata(Map<String, Object> model,
			Channel feed, HttpServletRequest request) {
		// implementation omitted
	}

	@Override
	protected List<Item> buildFeedItems(Map<String, Object> model,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		// implementation omitted
	}
}
class SampleContentRssView : AbstractRssFeedView() {

	override fun buildFeedMetadata(model: Map<String, Any>,
								feed: Channel, request: HttpServletRequest) {
		// implementation omitted
	}

	override fun buildFeedItems(model: Map<String, Any>,
			request: HttpServletRequest, response: HttpServletResponse): List<Item> {
		// implementation omitted
	}
}

buildFeedItems() 和 buildFeedEntries() 方法会传入 HTTP 请求，以便在需要时访问 Locale。HTTP 响应仅用于设置 Cookie 或其他 HTTP 头信息。方法返回后，feed 会自动写入响应对象。spring-doc.cadn.net.cn

有关创建 Atom 视图的示例，请参见 Alef Arendsen 在 Spring 团队博客上的文章。spring-doc.cadn.net.cn