从网页中抽取数据

http://www.drugfuture.com/chemdata/bacilysin.html
比如这个页面，我想从中提取标记为红色的信息，他的抽取模版是什么样的呢物质名称(英文名)： Bacilysin
CA登记号(CAS Registry Number)：29393-20-2 CAS Name: [1R-(1a,2b,6a)]-N-L-Alanyl-3-(5-oxo-7-oxabicyclo[4.1.0]hept-2-yl)-L-alanine
参考文献(Literature References)： Antibiotic produced by the soil bacillus NCTC 7197: Gilliver et al., in Antibiotics vol. I, Florey et al., Eds. (Oxford, 1949) p 458. Production by Bacillus subtilis and purification: Rogers et al., Biochem. J. 97, 573 (1965). Identity with tetaine: K. Kaminski, T. Sololowska, J. Antibiot. 26, 184 (1973). Identity with bacillin: K. Atsumi et al., ibid. 28, 77 (1975). Improved isoln: Walker, Abraham, Biochem. J. 118, 557 (1970). Structural study: Rogers et al., ibid. 97, 579 (1965). Final structure: Walker, Abraham, ibid. 118, 563 (1970).
药理活性(Keywords)： White amorphous powder. Freely sol in water; sol in 80% alc; sparingly sol in abs alc. Stable in aq soln at 100° for 5 min at pH 7; becomes inactive at pH 2 or pH 9.
分子式(Molecular Formula)： C12H18N2O5
分子量(Molecular Weight)：270.28

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    <title>
        Bacilysin</title>
    <meta content="Bacilysin,[1R-(1alpha,2beta,6alpha)]-N-L-Alanyl-3-(5-oxo-7-oxabicyclo[4.1.0]hept-2-yl)-L-alanine,alpha-[(2-amino-1-oxopropyl)amino]-5-oxo-7-oxabicyclo[4.1.0]heptane-2-propanoic acid,alpha-(2-aminopropionamido)-5-oxo-7-oxabicyclo[4.1.0]heptane-2-propionic acid, stereoisomer,bacillin,tetaine" name="keywords" />
</head>
<body>
    <table align="center" width="760">
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                <table cellspacing="0" cellpadding="0" border="0" align="left"><tr><td><image src="structure/Bacilysin.gif" alt="Bacilysin" /></td></tr><tr><td><a href="stremf/Bacilysin.emf" target="_blank"><span style="font-family:Arial; font-size:13px">Structural Formula Vector Image</span></a></td></tr><tr><td><script type="text/javascript">
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</script></td></tr><tr><td><div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Title:</b>  Bacilysin</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>CAS Registry Number:</b>  29393-20-2</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>CAS Name:</b>  [1<i>R</i>-(1</span><span style='font-family:Symbol; font-size:13px; color:#000000'>a</span><span style='font-family:Arial; font-size:13px; color:#000000'>,2</span><span style='font-family:Symbol; font-size:13px; color:#000000'>b</span><span style='font-family:Arial; font-size:13px; color:#000000'>,6</span><span style='font-family:Symbol; font-size:13px; color:#000000'>a</span><span style='font-family:Arial; font-size:13px; color:#000000'>)]-<i>N-</i></span><span style='font-family:Arial; font-size:11px; color:#000000'>L</span><span style='font-family:Arial; font-size:13px; color:#000000'>-Alanyl-3-(5-oxo-7-oxabicyclo[4.1.0]hept-2-yl)-</span><span style='font-family:Arial; font-size:11px; color:#000000'>L</span><span style='font-family:Arial; font-size:13px; color:#000000'>-alanine</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Additional Names:</b>  </span><span style='font-family:Symbol; font-size:13px; color:#000000'>a</span><span style='font-family:Arial; font-size:13px; color:#000000'>-[(2-amino-1-oxopropyl)amino]-5-oxo-7-oxabicyclo[4.1.0]heptane-2-propanoic acid;  </span><span style='font-family:Symbol; font-size:13px; color:#000000'>a</span><span style='font-family:Arial; font-size:13px; color:#000000'>-(2-aminopropionamido)-5-oxo-7-oxabicyclo[4.1.0]heptane-2-propionic acid, stereoisomer;  bacillin;  tetaine</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Molecular Formula:</b>  C</span><span style='font-family:Arial; font-size:11px; color:#000000'>12</span><span style='font-family:Arial; font-size:13px; color:#000000'>H</span><span style='font-family:Arial; font-size:11px; color:#000000'>18</span><span style='font-family:Arial; font-size:13px; color:#000000'>N</span><span style='font-family:Arial; font-size:11px; color:#000000'>2</span><span style='font-family:Arial; font-size:13px; color:#000000'>O</span><span style='font-family:Arial; font-size:11px; color:#000000'>5</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Molecular Weight:</b>  270.28</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Percent Composition:</b>  C 53.33%, H 6.71%, N 10.36%, O 29.60%</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Literature References:</b>  Antibiotic produced by the soil bacillus NCTC 7197:  Gilliver <i>et al.,</i> in <i>Antibiotics</i> <b>vol. I,</b> Florey <i>et al.,</i> Eds. (Oxford, 1949) p 458.  Production by <i>Bacillus subtilis</i> and purification:  Rogers <i>et al.,</i> <i>Biochem. J.</i> <b>97,</b> 573 (1965).  Identity with tetaine:  K. Kaminski, T. Sololowska, <i>J. Antibiot.</i> <b>26,</b> 184 (1973).  Identity with bacillin:  K. Atsumi <i>et al.,</i> <i>ibid.</i> <b>28,</b> 77 (1975).  Improved isoln:  Walker, Abraham, <i>Biochem. J.</i> <b>118,</b> 557 (1970).  Structural study:  Rogers <i>et al.,</i> <i>ibid.</i> <b>97,</b> 579 (1965).  Final structure:  Walker, Abraham, <i>ibid.</i> <b>118,</b> 563 (1970).</span></div>
<div align="left" style="margin-left: 0pt;"><span style='font-family:Arial; font-size:13px; color:#000000'><b>Properties:</b>  White amorphous powder.  Freely sol in water; sol in 80% alc; sparingly sol in abs alc.  Stable in aq soln at 100° for 5 min at pH 7; becomes inactive at pH 2 or pH 9. </span></div></td></tr><tr><td><script type="text/javascript">
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                <br /><span style="font-family:Arial; font-size:13px; color:#000000"><b>Other Monographs:</b></span><br /><table cellspacing="1" cellpadding="1" border="0" align="left"><tr><td><a href="Allopregnane-3beta-17alpha-21-triol-11-20-dione.html"><span style="font-family:Arial; font-size:13px">Allopregnane-3β,17α,21-triol-11,20-dione</span></a></td><td><a href="Hamamelitannin.html"><span style="font-family:Arial; font-size:13px">Hamamelitannin</span></a></td><td><a href="Mibefradil.html"><span style="font-family:Arial; font-size:13px">Mibefradil</span></a></td><td><a href="Resin-Ipomea.html"><span style="font-family:Arial; font-size:13px">Resin Ipomea</span></a></td></tr><tr><td><a href="Propyl-Chlorocarbonate.html"><span style="font-family:Arial; font-size:13px">Propyl Chlorocarbonate</span></a></td><td><a href="Potassium-Cyanide.html"><span style="font-family:Arial; font-size:13px">Potassium Cyanide</span></a></td><td><a href="Denopamine.html"><span style="font-family:Arial; font-size:13px">Denopamine</span></a></td><td><a href="Ethyl-Propionate.html"><span style="font-family:Arial; font-size:13px">Ethyl Propionate</span></a></td></tr><tr><td><a href="Fluspirilene.html"><span style="font-family:Arial; font-size:13px">Fluspirilene</span></a></td><td><a href="White-Pine.html"><span style="font-family:Arial; font-size:13px">White Pine</span></a></td><td><a href="Bezafibrate.html"><span style="font-family:Arial; font-size:13px">Bezafibrate</span></a></td><td><a href="Amotriphene.html"><span style="font-family:Arial; font-size:13px">Amotriphene</span></a></td></tr><tr><td><a href="Gibberellic-Acid.html"><span style="font-family:Arial; font-size:13px">Gibberellic Acid</span></a></td><td><a href="Periodyl.html"><span style="font-family:Arial; font-size:13px">Periodyl</span></a></td><td><a href="Probucol.html"><span style="font-family:Arial; font-size:13px">Probucol</span></a></td><td><a href="2-4-Dinitroaniline.html"><span style="font-family:Arial; font-size:13px">2,4-Dinitroaniline</span></a></td></tr></table>
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http://jsoup.org/packages/jsoup-1.5.2.jar
import org.jsoup.*;
import org.jsoup.select.*;
import org.jsoup.nodes.*;public class Extract {
    public static void main(final String[] args) {
        try{
            Document document = Jsoup.connect("http://www.drugfuture.com/chemdata/bacilysin.html").get();
            Elements elements = document.select("table:eq(0) div");
            for(Element element: elements){
                String text = element.text();
                System.out.println(text.substring(text.indexOf(":") + 2));
            }
        }catch(java.io.IOException e){
            System.err.println(e);
        }
    }
}
我把jsoup.jar添加到工程中了，但是它里面好像没东西一样，不像其他的包前面有个+可以展开，程序里好像没有找到这个包，提示Jsoup cannot be resolved;Document cannot be resolved to a type
怎么会没有？
sfk larc jsoup-1.5.2.jar
jsoup-1.5.2.jar//META-INF/MANIFEST.MF
jsoup-1.5.2.jar//org/jsoup/Connection$Base.class
jsoup-1.5.2.jar//org/jsoup/Connection$KeyVal.class
jsoup-1.5.2.jar//org/jsoup/Connection$Method.class
jsoup-1.5.2.jar//org/jsoup/Connection$Request.class
jsoup-1.5.2.jar//org/jsoup/Connection$Response.class
jsoup-1.5.2.jar//org/jsoup/Connection.class
jsoup-1.5.2.jar//org/jsoup/examples/ListLinks.class
jsoup-1.5.2.jar//org/jsoup/helper/DataUtil.class
jsoup-1.5.2.jar//org/jsoup/helper/HttpConnection$1.class
jsoup-1.5.2.jar//org/jsoup/helper/HttpConnection$Base.class
jsoup-1.5.2.jar//org/jsoup/helper/HttpConnection$KeyVal.class
jsoup-1.5.2.jar//org/jsoup/helper/HttpConnection$Request.class
jsoup-1.5.2.jar//org/jsoup/helper/HttpConnection$Response.class
jsoup-1.5.2.jar//org/jsoup/helper/HttpConnection.class
jsoup-1.5.2.jar//org/jsoup/helper/StringUtil.class
jsoup-1.5.2.jar//org/jsoup/helper/Validate.class
jsoup-1.5.2.jar//org/jsoup/Jsoup.class
jsoup-1.5.2.jar//org/jsoup/nodes/Attribute.class
jsoup-1.5.2.jar//org/jsoup/nodes/Attributes$1.class
jsoup-1.5.2.jar//org/jsoup/nodes/Attributes$Dataset$DatasetIterator.class
jsoup-1.5.2.jar//org/jsoup/nodes/Attributes$Dataset$EntrySet.class
jsoup-1.5.2.jar//org/jsoup/nodes/Attributes$Dataset.class
jsoup-1.5.2.jar//org/jsoup/nodes/Attributes.class
jsoup-1.5.2.jar//org/jsoup/nodes/Comment.class
jsoup-1.5.2.jar//org/jsoup/nodes/DataNode.class
jsoup-1.5.2.jar//org/jsoup/nodes/Document$OutputSettings.class
jsoup-1.5.2.jar//org/jsoup/nodes/Document.class
jsoup-1.5.2.jar//org/jsoup/nodes/Element.class
jsoup-1.5.2.jar//org/jsoup/nodes/Entities$EscapeMode.class
jsoup-1.5.2.jar//org/jsoup/nodes/Entities.class
jsoup-1.5.2.jar//org/jsoup/nodes/Node$OuterHtmlVisitor.class
jsoup-1.5.2.jar//org/jsoup/nodes/Node.class
jsoup-1.5.2.jar//org/jsoup/nodes/TextNode.class
jsoup-1.5.2.jar//org/jsoup/nodes/XmlDeclaration.class
jsoup-1.5.2.jar//org/jsoup/parser/Parser.class
jsoup-1.5.2.jar//org/jsoup/parser/Tag.class
jsoup-1.5.2.jar//org/jsoup/parser/TokenQueue.class
jsoup-1.5.2.jar//org/jsoup/safety/Cleaner$ElementMeta.class
jsoup-1.5.2.jar//org/jsoup/safety/Cleaner.class
jsoup-1.5.2.jar//org/jsoup/safety/Whitelist$AttributeKey.class
jsoup-1.5.2.jar//org/jsoup/safety/Whitelist$AttributeValue.class
jsoup-1.5.2.jar//org/jsoup/safety/Whitelist$Protocol.class
jsoup-1.5.2.jar//org/jsoup/safety/Whitelist$TagName.class
jsoup-1.5.2.jar//org/jsoup/safety/Whitelist$TypedValue.class
jsoup-1.5.2.jar//org/jsoup/safety/Whitelist.class
jsoup-1.5.2.jar//org/jsoup/select/Collector$Accumulator.class
jsoup-1.5.2.jar//org/jsoup/select/Collector.class
jsoup-1.5.2.jar//org/jsoup/select/CombiningEvaluator$And.class
jsoup-1.5.2.jar//org/jsoup/select/CombiningEvaluator$Or.class
jsoup-1.5.2.jar//org/jsoup/select/CombiningEvaluator.class
jsoup-1.5.2.jar//org/jsoup/select/Elements.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AllElements.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$Attribute.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeKeyPair.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeStarting.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeWithValue.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeWithValueContaining.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeWithValueEnding.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeWithValueMatching.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeWithValueNot.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$AttributeWithValueStarting.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$Class.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$ContainsOwnText.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$ContainsText.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$Id.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$IndexEquals.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$IndexEvaluator.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$IndexGreaterThan.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$IndexLessThan.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$Matches.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$MatchesOwn.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator$Tag.class
jsoup-1.5.2.jar//org/jsoup/select/Evaluator.class
jsoup-1.5.2.jar//org/jsoup/select/NodeTraversor.class
jsoup-1.5.2.jar//org/jsoup/select/NodeVisitor.class
jsoup-1.5.2.jar//org/jsoup/select/QueryParser.class
jsoup-1.5.2.jar//org/jsoup/select/Selector$SelectorParseException.class
jsoup-1.5.2.jar//org/jsoup/select/Selector.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$Has.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$ImmediateParent.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$ImmediatePreviousSibling.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$Not.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$Parent.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$PreviousSibling.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator$Root.class
jsoup-1.5.2.jar//org/jsoup/select/StructuralEvaluator.class
jsoup-1.5.2.jar//META-INF/maven/org.jsoup/jsoup/pom.xml
jsoup-1.5.2.jar//META-INF/maven/org.jsoup/jsoup/pom.properties
修改传入select 方法的参数。