Grails本身好像并沒有產生rss的插件。如果要用grails產生Rss，可以使用Rome。方法大概如下：
下載需要的庫文件
到https://rome.dev.java.net/下載Rome，之后把rome-xxx.jar放到你的grails項目的lib目錄下。這里xxx是版本號。比如我的是rome-1.0RC1.jar
再到http://www.jdom.org/下載JDom。之后同樣是把jdom.jar放到lib目錄下。
書寫代碼
創建一個controller，當然你也可以在你已經有的controller里面增加相應方法。這里我們創建一個叫做FeedController的類。
?1?import?com.sun.syndication.feed.synd.*;???
?2?import?com.sun.syndication.io.SyndFeedOutput;???
?3????????????????
?4?class?FeedController?{???
?5????????
?6?????def?supportedFormats?=?[?"rss_0.90",?"rss_0.91",?"rss_0.92",?"rss_0.93",?"rss_0.94",?"rss_1.0",?"rss_2.0",?"atom_0.3"]???
?7???
?8???????????????????
?9?????????????????????????????????
10????????
11?????def?rss?=?{???
12????????????????
13?????????????render(text:?getFeed("rss_1.0"),?contentType:"text/xml",?encoding:"UTF-8")???
14????????
15?????}???
16????????
17?????def?atom?=?{???
18????????????????
19?????????????render(text:?getFeed("atom_1.0"),?contentType:"text/xml",?encoding:"UTF-8")???
20????????????????????????
21?????}???
22???
23?????//?or?specify?your?own?feed?type???
24?????def?all?=?{???
25?????????????def?format?=?params.id???
26?????????????if?(supportedFormats.contains(format))?{???
27?????????????????render(text:?getFeed(format),?contentType:"text/xml",?encoding:"UTF-8")???
28?????????????}?else?{???
29?????????????????response.sendError(response.SC_FORBIDDEN);???
30?????????????}??????????????????
31?????}???
32????????
33????????
34?????def?getFeed(feedType)?{???
35????????????
36?????????def?items?=?Post.list(max:?5,?sort:?"created",?order:?"desc")???
37????????????????
38?????????def?entries?=?[]???
39?????????items.each?{?item?->???
40?????????????def?desc?=?new?SyndContentImpl(type:?"text/plain",?value:?item.description);???
41?????????????def?entry?=?new?SyndEntryImpl(title:?item.name?+?"?-?"?+?item.summary,????
42?????????????????????link:?'http://www.ondev.net/item/show/'?+?item.name,???
43?????????????????????publishedDate:?item.created,?description:?desc);???
44?????????????entries.add(entry);???
45???
46?????????}???
47?????????SyndFeed?feed?=?new?SyndFeedImpl(feedType:?feedType,?title:?'標題',???
48?????????????????link:?'http://www.ondev.net',?description:?'說明性文字',???
49?????????????????entries:?entries);???
50????????????
51?????????StringWriter?writer?=?new?StringWriter();???
52?????????SyndFeedOutput?output?=?new?SyndFeedOutput();???
53?????????output.output(feed,writer);???
54?????????writer.close();???
55????????????
56?????????return?writer.toString();???
57???
58????????????
59?????}???
60????????
61?}??
62?
之后訪問相應的頁面，比如說http://www.ondev.net/feed/rss就可以了
原貼地址： http://www.ondev.net/story/show/75
posted on 2008-09-06 13:42
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