小编Ale*_*xei的帖子

我使用库rome.dev.java.net来获取RSS.

代码是

URL feedUrl = new URL("http://planet.rubyonrails.ru/xml/rss");
SyndFeedInput input = new SyndFeedInput();
SyndFeed feed = input.build(new XmlReader(feedUrl));

您可以检查http://planet.rubyonrails.ru/xml/rss是否为有效URL,并在浏览器中显示该页面.

但我从我的申请中得到例外

java.io.FileNotFoundException: http://planet.rubyonrails.ru/xml/rss
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1311)
        at com.sun.syndication.io.XmlReader.<init>(XmlReader.java:237)
        at com.sun.syndication.io.XmlReader.<init>(XmlReader.java:213)
        at rssdaemonapp.ValidatorThread.run(ValidatorThread.java:32)
        at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
        at java.lang.Thread.run(Thread.java:619)

我不使用任何代理.我在我的PC和生产服务器上遇到此异常,并且只有此URL,其他URL正在运行.

我从RSS频道抓取数据,清理它并保存在数据库中.我使用java,tidy,MySQL和JDBC.

脚步:

1. 我抓住了RSS记录.没关系.
2. 我用整洁来消毒html.这是一个转变.Tidy自动将诸如"它不太可能"之类的字符串转换为"所以它不太可能".
3. 我把这个字符串保存到表中

MySQL方案是

CREATE TABLE IF NOT EXISTS `rss_item_safe_texts` (
  `id` int(10) unsigned NOT NULL,
  `title` varchar(1000) NOT NULL,
  `link` varchar(255) NOT NULL,
  `description` mediumtext NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

JDBC连接URL是

connUrl = "jdbc:mysql://" + host + "/" + database + "?user=" + username + "&password=" + password + "&useUnicode=true&characterEncoding=UTF-8";

Java代码是

PreparedStatement updateSafeTextSt = conn.prepareStatement("UPDATE `rss_item_safe_texts` SET `title` = ?, `link` = ?, `description` = ? WHERE `id` = ?");
updateSafeTextSt.setString(1, EscapingUtils.escapeXssInjection(title));
updateSafeTextSt.setString(2, …