通过httpclient抓取网页信息。

public class SnippetHtml{

	/**
* 通过url获取网站html
* @param url 网站url
*/
public String parseHtml (String url) {
// 测试HttpClient用法
HttpClient client=new HttpClient();
//设置代理服务器地址和端口
HttpMethod method = null;
String html = "";
try {
method = new GetMethod(url);
client.executeMethod(method);
html = method.getResponseBodyAsString();//获取网页内容
} catch (HttpException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
//释放连接
if (method != null) {
method.releaseConnection();
}
}
return html ;
} /**
* 解析html获取地震bean
* @param html 解析网页html
* @return List
*/
public void getHtmlEarthBean (String html) {
if (html != null && !"".equals(html)) {
Document doc = Jsoup.parse(html);
Elements linksElements = doc.getElementsByAttributeValue("class", "news-table");//获取class名字为 news-table
for (Element ele : linksElements) {
Elements linksElements1 = ele.getElementsByTag("td");//获取网页td的标签元素
for (Element ele1 : linksElements1) {
System.out.println(ele1.text());
}
}
}
}
}

需要下载jar包:commons-httpclient-3.1.jar 和  jsoup-1.6.1.jar  作为抓取和解析。

04-27 06:24