使用HtmlParser抓去网页内容
package parser;
import org.htmlparser.Parser;
import org.htmlparser.beans.StringBean;
importorg.htmlparser.filters.NodeClassFilter;
importorg.htmlparser.parserapplications.StringExtractor;
import org.htmlparser.tags.BodyTag;
import org.htmlparser.util.NodeList;
import org.htmlparser.util.ParserException;
/**
* 使用HtmlParser抓去网页内容: 要抓去页面的内容最方便的方法就是使用StringBean. 里面有几个控制页面内容的几个参数.
* 在后面的代码中会有说明. Htmlparser包中还有一个示例StringExtractor 里面有个直接得到内容的方法,
* 其中也是使用了StringBean . 另外直接解析Parser的每个标签也可以的.
*
*@author chenguoyong
*
*/
public class GetContent {
publicvoid getContentUsingStringBean(String url) {
StringBeansb = new StringBean();
sb.setLinks(true);// 是否显示web页面的连接(Links)
//为了取得页面的整洁美观一般设置上面两项为true , 如果要保持页面的原有格式, 如代码页面的空格缩进 可以设置为false
sb.setCollapse(true);// 如果是true的话把一系列空白字符用一个字符替代.
sb.setReplaceNonBreakingSpaces(true);//If true regular space
sb
.setURL("http://www.blogjava.net/51AOP/archive/2006/07/19/59064.html");
System.out.println("TheContent is :\n" + sb.getStrings());
}
publicvoid getContentUsingStringExtractor(String url, boolean link) {
//StringExtractor内部机制和上面的一样.做了一下包装
StringExtractorse = new StringExtractor(url);
Stringtext = null;
try{
text= se.extractStrings(link);
System.out.println("Thecontent is :\n" + text);
}catch (ParserException e) {
e.printStackTrace();
}
}
publicvoid getContentUsingParser(String url) {
NodeListnl;
try{
Parserp = new Parser(url);
nl= p.parse(new NodeClassFilter(BodyTag.class));
BodyTagbt = (BodyTag) nl.elementAt(0);
System.out.println(bt.toPlainTextString());// 保留原来的内容格式. 包含js代码
}catch (ParserException e) {
e.printStackTrace();
}
}
/**
* @param args
*/
publicstatic void main(String[] args) {
Stringurl = "http://www.blogjava.net/51AOP/archive/2006/07/19/59064.html";
//newGetContent().getContentUsingParser(url);
//--------------------------------------------------
newGetContent().getContentUsingStringBean(url);
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