<div id="p_fullcontent" class="detail">     <p>HTML4J 是一个 Java 解析 HTML 的类库。示例代码：<br /> </p>     <pre class="brush:java; toolbar: true; auto-links: false;">    Reader re = ...     // Create the document     HTMLDoc doc = new HTMLDoc();     // Load its content     doc.load(re);     // Get the HTML     HTMLFragment html = doc.getHTML();     // Create a 'date' meta-tag     HTMLTag tag = HTMLTag.parse("<meta name=\"date\" content=21/01/2001>");     // Insert it just before the title     html.insertBefore(html.findTagByName("title"), tag);     // Create a paragraph     tag = HTMLTag.create("p");     // Insert '<p>Paragraph</p>' just before a tag with id="someid"     html.insertBefore(html.getIdFinder("someid").getTag().getPosition(),      tag.toString("Paragraph"));     // Create an anchor to foo.html     HTMLTag anchor = HTMLTag.parse("<a href=\"foo.html\">");     // We could also do a 'HTMLTag.create("a")' and then set the 'href'     // attribute using getAttributes().setAttribute("href", "foo.html")     //     // Now we get a tag block with id="otherid"     tag = html.getIdFinder("otherid").getTagBlock();     // Replace the tag that has id="otherid" by the same tag     // embraced by the foo.html anchor     html.replace(tag.getBlockPosition(), anchor.toString(tag));     // For example, if the 'otherid' tag was 'img src="something.jpg"',     // then the result would be:     //   '<a href="foo.html"><img id="otherid" src="something.jpg"></a>'     //     tag = html.getTagByName("meta");     // We just got the first 'meta' tag found in the document, and now we     // set its name attribute to 'last_update', and its value     // (the 'content' attribute) to "20/01/2001"     tag.getAttributes().setAttribute("name", "last_update");     tag.getAttributes().setAttribute("content", "20/01/2001");     // Commit the changes to the 'meta' tag to the document     html.update(tag);</pre>     <p><strong>项目主页：</strong><a href="http://www.open-open.com/lib/view/home/1324394802218" target="_blank">http://www.open-open.com/lib/view/home/1324394802218</a></p>     <p></p>    </div>