RSS 和 Atom

ChatGPT-4o-mini 中英对照 RSS and Atom

AbstractAtomFeedView 和 AbstractRssFeedView 都继承自 AbstractFeedView 基类，分别用于提供 Atom 和 RSS Feed 视图。它们基于 ROME 项目，位于包 org.springframework.web.servlet.view.feed 中。

AbstractAtomFeedView 要求您实现 buildFeedEntries() 方法，并可选择性地重写 buildFeedMetadata() 方法（默认实现为空）。以下示例演示了如何做到这一点：

Java

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
    }
}

java

Kotlin

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
    }
}

kotlin

实现 AbstractRssFeedView 的类似要求，如下例所示：

Java

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
    }
}

java

Kotlin

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
    }
}

kotlin

buildFeedItems() 和 buildFeedEntries() 方法传入 HTTP 请求，以便您需要访问 Locale 的情况。HTTP 响应仅用于设置 cookies 或其他 HTTP 头。该 feed 在方法返回后会自动写入响应对象。

有关创建 Atom 视图的示例，请参见 Alef Arendsen 的 Spring 团队博客 条目。