📄 lucene_net 实现全文搜索-_net教程,asp_net开发站长天空｜虚拟主机资讯虚拟主机新闻虚拟主机动态.mht
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=
}<BR> =20
foreach (directoryinfo di in=20
=
directory.getdirectories())<BR> =
=20
=
{<BR> &n=
bsp; =20
=
addsubdirectory(di);<BR> &=
nbsp; =20
}<BR> =20
}<BR> =20
<BR> public void=20
addhtmldocument(string=20
path)<BR> =20
=
{<BR> =20
string exname=3Dpath.getextension=20
=
(path);<BR> &n=
bsp;=20
document doc =3D new document(); =20
<BR> =20
=
<BR> =20
string=20
=
html; =20
=
<BR> =20
if(exname.tolower ()=3D=3D".html" ||exname .tolower =
()=3D=3D".htm"||exname=20
.tolower=20
=
()=3D=3D".txt")<BR> =
=20
=
{<BR> &n=
bsp; =20
using(streamreader sr=3Dnew streamreader (path,system .text =
.encoding=20
.default=20
=
))<BR> &=
nbsp; =20
{=20
=
<BR> &nb=
sp; =20
html =3D=20
=
sr.readtoend();<BR> =
=20
=
}<BR> =20
=
}<BR> =20
=
else<BR>  =
;=20
=
{<BR> &n=
bsp; =20
using (streamreader sr =3D new streamreader(path,=20
system.text.encoding.unicode =20
=
))<BR> &=
nbsp; =20
=
{<BR> &n=
bsp; =20
html =3D=20
=
sr.readtoend();<BR> =
=20
=
}<BR> =20
}</P>
=
<P> =20
int relativepathstartsat =3D =
this.docrootdirectory.endswith("\\") ?=20
this.docrootdirectory.length : this.docrootdirectory.length =
+=20
=
1;<BR> =
string relativepath =3D=20
=
path.substring(relativepathstartsat);<BR> &n=
bsp; =20
string=20
=
title=3Dpath.getfilename(path);<BR> &n=
bsp; =20
=
<BR> =20
=
//=C5=D0=B6=CF=C8=F4=CA=C7=CD=F8=D2=B3=D4=F2=C8=A5=B1=EA=C7=A9=B7=F1=D4=F2=
=B2=BB=D3=C3<BR> &nb=
sp; =20
if(exname.tolower ()=3D=3D".html" ||exname .tolower=20
=
()=3D=3D".htm")<BR> =
=20
=
{<BR> &n=
bsp; =20
doc.add(field.unstored("text",=20
=
parsehtml(html)));<BR> &nb=
sp; =20
=
}<BR> =20
=
else<BR>  =
;=20
=
{<BR> &n=
bsp; =20
doc.add (field .unstored=20
=
("text",html));<BR> =
=20
=
}<BR> =20
doc.add(field.keyword("path",=20
=
relativepath));<BR> =
=20
//doc.add(field.text("title",=20
=
gettitle(html)));<BR> &nbs=
p; =20
doc.add (field .text=20
=
("title",title));<BR> &nbs=
p; =20
=
writer.adddocument(doc);<BR> =20
} <BR> =
/**////=20
=
<summary><BR> ///=20
=
=C8=A5=B3=FD=CD=F8=D2=B3=D6=D0=B5=C4=B1=EA=C7=A9<BR> &nb=
sp; ///=20
=
</summary><BR> ///=20
<param=20
=
name=3D"html">=CD=F8=D2=B3</param><BR> &n=
bsp; =20
///=20
=
<returns>=B7=B5=BB=D8=C8=A5=B3=FD=BA=F3=B5=C4=CD=F8=D2=B3=CE=C4=B1=BE=
</returns><BR> =20
private string parsehtml(string=20
html)<BR> =20
=
{<BR> =20
string temp =3D regex.replace(html, "<[^>]*>",=20
=
"");<BR>  =
;=20
return temp.replace("&nbsp;", "=20
");<BR> =20
}<BR> /**////=20
=
<summary><BR> ///=20
=
=BB=F1=C8=A1=CD=F8=D2=B3=B1=EA=CC=E2<BR> &nb=
sp; ///=20
=
</summary><BR> ///=20
<param=20
=
name=3D"html"></param><BR> &n=
bsp;=20
///=20
=
<returns></returns><BR> &n=
bsp;=20
private string gettitle(string=20
html)<BR> =20
=
{<BR> =20
match m =3D regex.match(html,=20
=
"<title>(.*)</title>");<BR> &nbs=
p; =20
if (m.groups.count =3D=3D=20
=
2)<BR> &=
nbsp; =20
return=20
=
m.groups[1].value;<BR> &nb=
sp; =20
return =
"=CE=C4=B5=B5=B1=EA=CC=E2=CE=B4=D6=AA";<BR> =
=20
}<BR> /**////=20
=
<summary><BR> ///=20
=
=D3=C5=BB=AF=CB=F7=D2=FD=B2=A2=B9=D8=B1=D5=D0=B4=C8=EB=C6=F7<BR> &nb=
sp; ///=20
=
</summary><BR> =20
public void =
close()<BR> =20
=
{<BR> =20
=
writer.optimize();<BR> &nb=
sp; =20
=
writer.close();<BR> =20
}<BR> } </P>
=
<P>=CA=D7=CF=C8=BD=A8=C1=A2document=B6=D4=CF=F3,=C8=BB=BA=F3=CE=AAdocumen=
t=B6=D4=CF=F3=CC=ED=BC=D3=D2=BB=D0=A9=CA=F4=D0=D4field.=C4=E3=BF=C9=D2=D4=
=B0=D1document=B6=D4=CF=F3=BF=B4=B3=C9=CA=C7=D0=E9=C4=E2=CE=C4=BC=FE,=BD=AB=
=C0=B4=BD=AB=B4=D3=B4=CB=BB=F1=C8=A1=D0=C5=CF=A2.=B6=F8field=D4=F2=BF=B4=B3=
=C9=CA=C7=C3=E8=CA=F6=B4=CB=D0=E9=C4=E2=CE=C4=BC=FE=B5=C4=D4=AA=CA=FD=BE=DD=
(metadata).=C6=E4=D6=D0field=B0=FC=C0=A8=CB=C4=B8=F6=C0=E0=D0=CD=A3=BA=20
keywork </P>
=
<P> =B8=C3=C0=E0=D0=CD=B5=C4=CA=FD=BE=DD=BD=AB=B2=BB=B1=BB=B7=D6=CE=F6=
,=B6=F8=BB=E1=B1=BB=CB=F7=D2=FD=B2=A2=B1=A3=B4=E6=B1=A3=B4=E6=D4=DA=CB=F7=
=D2=FD=D6=D0. <BR> <BR>unindexed=20
=
<BR> =B8=C3=C0=E0=D0=CD=B5=C4=CA=FD=BE=DD=B2=BB=BB=E1=B1=BB=B7=D6=CE=
=F6=D2=B2=B2=BB=BB=E1=B1=BB=CB=F7=D2=FD,=B5=AB=CA=C7=BB=E1=B1=A3=B4=E6=D4=
=DA=CB=F7=D2=FD. <BR> <BR>unstored=20
=
<BR> =BA=CDunindexed=B8=D5=BA=C3=CF=E0=B7=B4,=B1=BB=B7=D6=CE=F6=B1=BB=
=CB=F7=D2=FD,=B5=AB=CA=C7=B2=BB=B1=BB=B1=A3=B4=E6. <BR> <BR>text=20
=
<BR> =BA=CDunstrored=C0=E0=CB=C6.=C8=E7=B9=FB=D6=B5=B5=C4=C0=E0=D0=CD=
=CE=AAstring=BB=B9=BB=E1=B1=BB=B1=A3=B4=E6.=C8=E7=B9=FB=D6=B5=B5=C4=C0=E0=
=D0=CD=CE=AAreader=BE=CD=B2=BB=BB=E1=B1=BB=B1=A3=B4=E6=BA=CDunstored=D2=BB=
=D1=F9.=20
<BR> </P>
=
<P>=D7=EE=BA=F3=BD=AB=C3=BF=D2=BB=B8=F6document=CC=ED=BC=D3=B5=BD=CB=F7=D2=
=FD=B5=B1=D6=D0=A1=A3</P>
=
<P>=CF=C2=C3=E6=CA=C7=B6=D4=CB=F7=D2=FD=BD=F8=D0=D0=CB=D1=CB=F7 </P>
<P> =
<BR>//=B4=B4=BD=A8=D2=BB=B8=F6=CB=F7=D2=FD=C6=F7<BR> =
indexsearcher searcher=20
=3D new indexsearcher(indexdirectory); <BR> =20
=
//=BD=E2=CE=F6=CB=F7=D2=FD=B5=C4text=D7=D6=B6=CE=D2=D4=B1=E3=CB=D1=CB=F7<=
BR> query query =3D=20
queryparser.parse(this.q, "text", new =
standardanalyzer()); =20
<BR> =
//=BD=AB=CB=D1=CB=F7=BD=E1=B9=FB=B7=C5=D4=DAhits=D6=D0<BR> =
hits hits =3D=20
searcher.search(query); <BR> =20
=
//=CD=B3=BC=C6=CB=D1=CB=F7=B5=C4=D7=DC=BC=C7=C2=BC=CA=FD<BR> =
this.total =3D hits.length(); =20
<BR> //=B8=DF=C1=C1=CF=D4=CA=BE<BR> =
queryhighlightextractor=20
highlighter =3D new queryhighlightextractor(query, new=20
standardanalyzer(), "<font color=3Dred>",=20
"</font>"); =20
=
<BR>=B5=DA=D2=BB=B2=BD=C0=FB=D3=C3indexsearcher=B4=F2=BF=AA=CB=F7=D2=FD=CE=
=C4=BC=FE=D3=C3=D3=DA=BA=F3=C3=E6=CB=D1=CB=F7,=C6=E4=D6=D0=B5=C4=B2=CE=CA=
=FD=CA=C7=CB=F7=D2=FD=CE=C4=BC=FE=B5=C4=C2=B7=BE=B6.</P>
=
<P>=B5=DA=B6=FE=B2=BD=CA=B9=D3=C3queryparser=BD=AB=BF=C9=B6=C1=D0=D4=BD=CF=
=BA=C3=B5=C4=B2=E9=D1=AF=D3=EF=BE=E4(=B1=C8=C8=E7=B2=E9=D1=AF=B5=C4=B4=CA=
lucene ,=D2=D4=BC=B0=D2=BB=D0=A9=B8=DF=BC=B6=B7=BD=CA=BDlucene and=20
=
.net)=D7=AA=BB=AF=CE=AAlucene=C4=DA=B2=BF=CA=B9=D3=C3=B5=C4=B2=E9=D1=AF=B6=
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