该类并不是一个通用的工具类，需要按自己的要求实现，这里只记录了Htmlparse.jar包的一些用法。仅此而已！
详细看这里：http://gundumw100.iteye.com/blog/704311
import java.util.*;
import org.htmlparser.Node;
import org.htmlparser.NodeFilter;
import org.htmlparser.Parser;
import org.htmlparser.filters.AndFilter;
import org.htmlparser.filters.HasAttributeFilter;
import org.htmlparser.filters.NodeClassFilter;
import org.htmlparser.filters.TagNameFilter;
import org.htmlparser.tags.BodyTag;
import org.htmlparser.tags.LinkTag;
import org.htmlparser.util.NodeList;
import org.htmlparser.util.ParserException;
/**
* httpclient与htmlparse对网页的解析
*
* @author Administrator
*
*/
public class HtmlparseUtil {
WebHttpClient util=new WebHttpClient();
/**
* 获得网页中的超链接，将href和text保存在Map中：map(href,text)
* @param url
* @param charset
* @return
*/
public Map<String, String> linkGet(String url, String charset) {
String content=util.getWebContentByGet(url,charset);
Map<String, String> linkMap = new HashMap<String, String>();
try {
//开始解析
Parser parser = Parser.createParser(content, charset);
// 过滤出<a></a>标签
NodeFilter linkFilter = new NodeClassFilter(LinkTag.class);
NodeList list = parser.extractAllNodesThatMatch(linkFilter);
Node node = null;
for (int i = 0; i < list.size(); i++) {
node = list.elementAt(i);
// 获得网页中的链接map(href,text)
linkMap.put(((LinkTag) node).getLink(), this.processText(((LinkTag) node).getLinkText()));
}
} catch (ParserException e) {
e.printStackTrace();
}
return linkMap;
}
/**
* 获得网页<body></body>标签中的内容， 保存在body中
* @param url
* @param charset
* @return
*/
public String bodyGet(String url, String charset) {
String content=util.getWebContentByGet(url,charset);
String body = "";
try {
Parser parser = Parser.createParser(content, charset);
// 过滤<body></body>标签
NodeFilter bodyFilter = new NodeClassFilter(BodyTag.class);
NodeList list = parser.extractAllNodesThatMatch(bodyFilter);
Node node = null;
for (int i = 0; i < list.size(); i++) {
node = list.elementAt(i);
// 获得网页内容 保存在content中
body = ((BodyTag) node).getBody();
}
} catch (ParserException e) {
e.printStackTrace();
}
return body;
}
/**
* 过滤出class为term的<span>元素,并获得他们的文本
* @param url
* @param charset
* @return
*/
public Map<String,String> termGet(String url, String charset) {
String content=util.getWebContentByGet(url,charset);
Map<String, String> map = new HashMap<String, String>();
try {
//开始解析
// 过滤出class为term的<span>元素
Parser parser = Parser.createParser(content, charset);
AndFilter filter =
new AndFilter(new TagNameFilter("span"),new HasAttributeFilter("class","term"));
Node node = null;
NodeList nodeList = parser.parse(filter);
for (int i = 0; i < nodeList.size(); i++) {
node = nodeList.elementAt(i);
map.put("term", node.toPlainTextString());
}
// 过滤出class为start-time的<span>元素
Parser parser2 = Parser.createParser(content, charset);
AndFilter filter2 =
new AndFilter(new TagNameFilter("span"),new HasAttributeFilter("class","start-time"));
NodeList nodeList2 = parser2.parse(filter2);
for (int i = 0; i < nodeList2.size(); i++) {
node = nodeList2.elementAt(i);
map.put("start-time", node.toPlainTextString());
}
// 过滤出id为J_SingleEndTimeLabel的<span>元素
Parser parser3 = Parser.createParser(content, charset);
AndFilter filter3 =
new AndFilter(new TagNameFilter("span"),new HasAttributeFilter("id","J_SingleEndTimeLabel"));
NodeList nodeList3 = parser3.parse(filter3);
for (int i = 0; i < nodeList3.size(); i++) {
node = nodeList3.elementAt(i);
map.put("end-time", node.toPlainTextString());
}
// 过滤出class为box post的<div>元素
Parser parser4 = Parser.createParser(content, charset);
AndFilter filter4 =
new AndFilter(new TagNameFilter("div"),new HasAttributeFilter("class","box post"));
NodeList nodeList4 = parser4.parse(filter4);
for (int i = 0; i < nodeList4.size(); i++) {
node = nodeList4.elementAt(i);
String temp=node.toPlainTextString().trim();
temp=temp.substring(10,20).trim();
map.put("pre-term", temp);
}
// 过滤出class为J_AwardNumber的<span>元素
Parser parser5 = Parser.createParser(content, charset);
// AndFilter filter5 =
// new AndFilter(new TagNameFilter("span"),new HasAttributeFilter("class","J_AwardNumber"));
NodeList nodeList5 = parser5.parse(new HasAttributeFilter("class","J_AwardNumber"));
StringBuffer buffer=new StringBuffer();
for (int i = 0; i < nodeList5.size(); i++) {
node = nodeList5.elementAt(i);
buffer.append(","+node.toPlainTextString());
}
buffer.append("|");
// 过滤出class为blue J_AwardNumber的<span>元素
Parser parser6 = Parser.createParser(content, charset);
// AndFilter filter6 =
// new AndFilter(new TagNameFilter("span"),new HasAttributeFilter("class","blue J_AwardNumber"));
NodeList nodeList6 = parser6.parse(new HasAttributeFilter("class","blue J_AwardNumber"));
for (int i = 0; i < nodeList6.size(); i++) {
node = nodeList6.elementAt(i);
buffer.append(node.toPlainTextString()+",");
}
map.put("numbers", buffer.toString());
} catch (ParserException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return map;
}
private String processText(String content){
content=content.trim().replaceAll(" ", "");
// content=content.replaceAll("<p>", "\n");
// content=content.replaceAll("</TD>", "");
// content=content.replaceAll("</div>", "");
// content=content.replaceAll("</a>", "");
// content=content.replaceAll("<a href=.*>", "");
return content;
}
public static void main(String[] str) {
String url="http://caipiao.taobao.com/lottery/order/lottery_dlt.htm?type=1";
HtmlparseUtil util=new HtmlparseUtil();
Map<String,String> map=util.termGet(url, "gb2312");
System.out.println("term="+map.get("term"));//<span class="term">第<em>10074</em>期</span>
System.out.println("start-time="+map.get("start-time"));//
System.out.println("end-time="+map.get("end-time"));//
System.out.println("pre-term="+map.get("pre-term"));//
System.out.println("numbers="+map.get("numbers"));//
/*
Map<String, String> linkMap = util.linkGet(url, "gb2312");
for (String s : linkMap.keySet()) {
System.out.println(s + " = " + linkMap.get(s));
//如果是个链接，则再获取它的<body>中的内容
// if (s.startsWith("http")) {
// util.bodyGet(s, "gb2312");
// }
}
*/
}
}
转载于:https://www.cnblogs.com/coprince/p/3152441.html