很好用的htmlparser 框架---Jsoup

本文详细记录了如何使用Java的JSoup库解析HTML文档,并利用HttpClient下载HTML页面中的图片资源。重点展示了从HTML文档中获取图片URL的方法,以及通过HTTP客户端进行实际下载的过程。

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pom.xml


<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.7.2</version>
<type>jar</type>
<scope>compile</scope>
</dependency>


<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.2.5</version>
<type>jar</type>
<scope>compile</scope>
</dependency>

为了实现用java程序自动下载html的图片,用了jsoup 和httpclient写了个下载的,做个记录。


Document doc;
try {
doc = Jsoup.parse(input, "UTF-8");
for (String tag : tags) {
Elements elements = doc.getElementsByTag("img");
for (Element ele : elements) {
String httpUrl = ele.attr("src");
}
}


} catch (IOException e) {
e.printStackTrace();
}


DefaultHttpClient defaultHttpClient = new DefaultHttpClient();
HttpGet request = new HttpGet(this.url);  
HttpResponse response = defaultHttpClient.execute(request);
HttpEntity entity = response.getEntity();
byte[]  buffer= EntityUtils.toByteArray(entity);;









按DOM模型解析html文件的工具包 已下是源码列表: META-INF/MANIFEST.MF META-INF/maven/org.htmlparser/htmlparser/pom.properties META-INF/maven/org.htmlparser/htmlparser/pom.xml org.htmlparser.Parser.class org.htmlparser.PrototypicalNodeFactory.class org.htmlparser.beans.BeanyBaby.class org.htmlparser.beans.FilterBean.class org.htmlparser.beans.HTMLLinkBean.class org.htmlparser.beans.HTMLTextBean.class org.htmlparser.beans.LinkBean.class org.htmlparser.beans.StringBean.class org.htmlparser.filters.AndFilter.class org.htmlparser.filters.CssSelectorNodeFilter.class org.htmlparser.filters.HasAttributeFilter.class org.htmlparser.filters.HasChildFilter.class org.htmlparser.filters.HasParentFilter.class org.htmlparser.filters.HasSiblingFilter.class org.htmlparser.filters.IsEqualFilter.class org.htmlparser.filters.LinkRegexFilter.class org.htmlparser.filters.LinkStringFilter.class org.htmlparser.filters.NodeClassFilter.class org.htmlparser.filters.NotFilter.class org.htmlparser.filters.OrFilter.class org.htmlparser.filters.RegexFilter.class org.htmlparser.filters.StringFilter.class org.htmlparser.filters.TagNameFilter.class org.htmlparser.http.HttpHeader.class org.htmlparser.sax.Attributes.class org.htmlparser.sax.Feedback.class org.htmlparser.sax.Locator.class org.htmlparser.sax.XMLReader.class org.htmlparser.scanners.CompositeTagScanner.class org.htmlparser.scanners.JspScanner.class org.htmlparser.scanners.ScriptDecoder.class org.htmlparser.scanners.ScriptScanner.class org.htmlparser.scanners.StyleScanner.class org.htmlparser.tags.AppletTag.class org.htmlparser.tags.BaseHrefTag.class org.htmlparser.tags.BlockquoteTag.class org.htmlparser.tags.BodyTag.class org.htmlparser.tags.Bullet.class org.htmlparser.tags.BulletList.class org.htmlparser.tags.CompositeTag.class org.htmlparser.tags.DefinitionList.class org.htmlparser.tags.DefinitionListBullet.class org.htmlparser.tags.Div.class org.htmlparser.tags.DoctypeTag.class org.htmlparser.tags.FormTag.class org.htmlparser.tags.FrameSetTag.class org.htmlparser.tags.FrameTag.class org.htmlparser.tags.HeadTag.class org.htmlparser.tags.HeadingTag.class org.htmlparser.tags.Html.class org.htmlparser.tags.ImageTag.class org.htmlparser.tags.InputTag.class org.htmlparser.tags.JspTag.class org.htmlparser.tags.LabelTag.class org.htmlparser.tags.LinkTag.class org.htmlparser.tags.MetaTag.class org.htmlparser.tags.ObjectTag.class org.htmlparser.tags.OptionTag.class org.htmlparser.tags.ParagraphTag.class org.htmlparser.tags.ProcessingInstructionTag.class org.htmlparser.tags.ScriptTag.class org.htmlparser.tags.SelectTag.class org.htmlparser.tags.Span.class org.htmlparser.tags.StyleTag.class org.htmlparser.tags.TableColumn.class org.htmlparser.tags.TableHeader.class org.htmlparser.tags.TableRow.class org.htmlparser.tags.TableTag.class org.htmlparser.tags.TextareaTag.class org.htmlparser.tags.TitleTag.class org.htmlparser.util.CharacterReference.class org.htmlparser.util.CharacterReferenceEx.class org.htmlparser.util.DefaultParserFeedback.class org.htmlparser.util.FeedbackManager.class org.htmlparser.util.IteratorImpl.class org.htmlparser.util.NodeTreeWalker.class org.htmlparser.util.ParserFeedback.class org.htmlparser.util.ParserUtils.class org.htmlparser.util.Translate.class org.htmlparser.visitors.HtmlPage.class org.htmlparser.visitors.LinkFindingVisitor.class org.htmlparser.visitors.ObjectFindingVisitor.class org.htmlparser.visitors.StringFindingVisitor.class org.htmlparser.visitors.TagFindingVisitor.class org.htmlparser.visitors.TextExtractingVisitor.class org.htmlparser.visitors.UrlModifyingVisitor.class org/htmlparser/beans/images/Chain16.gif org/htmlparser/beans/images/Chain32.gif org/htmlparser/beans/images/Knot16.gif org/htmlparser/beans/images/Knot32.gif
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