/* z34>,0
**SiteFileFetch.java Hg9.<|+yo
*/ jfY{z=*]u
package NetFox; /"Yx@n
import java.io.*; 2yQ}Lxr(
import java.net.*; ^5^}MB%
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public class SiteFileFetch extends Thread { &oeN#5Es8C
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SiteInfoBean siteInfoBean = null; //文件信息Bean P YF.#@":&
long[] nStartPos; //开始位置 ^b"bRQqm
long[] nEndPos; //结束位置 9PKoNd^e
FileSplitterFetch[] fileSplitterFetch; //子线程对象 Vj=Xcn#*8
long nFileLength; //文件长度 3u4*ofjE5
boolean bFirst = true; //是否第一次取文件 Jh\:X<q
boolean bStop = false; //停止标志 L-z;:Ztk
File tmpFile; //文件下载的临时信息 w*:GM8=6
DataOutputStream output; //输出到文件的输出流 `8Jq~u6_Z
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) f]ue#O
public SiteFileFetch(SiteInfoBean bean) throws IOException GOf`Z'\xt
{ sOl>5:D6
siteInfoBean = bean; Q54r?|'V
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); *qPdZ
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); M?Ndy*]
if(tmpFile.exists ()) qx2E-PDL;<
{ |.(CIu~b
bFirst = false; 4bi NGl~
read_nPos(); zj>aaY
} h`5YA89
else [0&'cu>
{ M@~~f
nStartPos = new long[bean.getNSplitter()]; _%'L@[ H
nEndPos = new long[bean.getNSplitter()]; eyT>wma0
} PFS;/
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} dn ZzA
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public void run() E dn[cH7
{ yB,{#nM>8
//获得文件长度 FxCZRo&
//分割文件 7v_i>_m]
//实例FileSplitterFetch JiFA]M`^Q
//启动FileSplitterFetch线程 S\e&?Y`
//等待子线程返回 wjTNO0hj
try{ :zdEq")v
if(bFirst) 2W^B{ZS;
{ HDmx@E.@
nFileLength = getFileSize(); jzs.+dAg
if(nFileLength == -1) IKi{Xh]\
{ 9u,8q:I.?
System.err.println("File Length is not known!"); G'f9N^w
} w66v\x~
else if(nFileLength == -2) u8YB)kG
{ <S1??
System.err.println("File is not access!"); -<qxO
} :dP~.ZY7
else SY-ez91
{ i;o}o*=
for(int i=0;i<nStartPos.length;i++) $Y6I_U
{ {L@+(I
nStartPos = (long)(i*(nFileLength/nStartPos.length)); 0K<x=-cCB
} .,3Zj /
for(int i=0;i<nEndPos.length-1;i++) ^rv"o:lF
{ z %x7fe
nEndPos = nStartPos[i+1]; &<,SV^wag
} l~bKBz
nEndPos[nEndPos.length-1] = nFileLength; Jyj0Gco
} g(/{.%\k
} Hjs}
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//启动子线程 ?Jt$a;
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; t5.`!3EO
for(int i=0;i<nStartPos.length;i++) ~>V-*NT8
{ $<B
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fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 1O
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siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), .K IVf8)"
nStartPos,nEndPos,i); =/FF1jQ
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); gH %y
fileSplitterFetch.start(); w
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} \6sqyWI
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// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), zZ%DtxUoU.
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); }A]BpSEP
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", CRFCqmevR
nEndPos = " + nFileLength); 6*IpAIh
// fileSplitterFetch[nPos.length-1].start(); mjb{~
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//等待子线程结束 }e 9!xA
//int count = 0; mN;+TN'?{
//是否结束while循环 y&"!m}
boolean breakWhile = false; 17}$=#SX
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while(!bStop) ~-TOsRvxR
{ P z ?m>>#
write_nPos(); P;vxT}1
Utility.sleep(500); %KtU1A(["
breakWhile = true; A\z`c
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for(int i=0;i<nStartPos.length;i++) `>6T&
{ M;+IZr Wkl
if(!fileSplitterFetch.bDownOver) +4et7
{ /.R<,/gj
breakWhile = false; -v]Qhf&>
break; >"v9iT
} /b5>Qp
} *5k+t
if(breakWhile) a?F!,=F
break; gZO&r#
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//count++; 48O~Jx,
//if(count>4) .2W"w)$nuq
// siteStop(); mT@nn,
} n[,XU|2
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System.err.println("文件下载结束!"); rh!;|xB|+
} 7"4z+w
catch(Exception e){e.printStackTrace ();} -)v@jlg02
} d(-EcY>?
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//获得文件长度 $TG=w
public long getFileSize()
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{ N\NyXh$
int nFileLength = -1; -fy9<
try{ B4h5[fPX
URL url = new URL(siteInfoBean.getSSiteURL()); >|g?wC}V;
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); :z&7W<
httpConnection.setRequestProperty("User-Agent","NetFox"); 8|@9{
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int responseCode=httpConnection.getResponseCode(); :>+\17tx
if(responseCode>=400) 29&bbfU
{ iafE5b)
processErrorCode(responseCode); I9?Ec6a_
return -2; //-2 represent access is error \]uV!)V5B
} V`kMCE;?l
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String sHeader;
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for(int i=1;;i++) |kJ%`j(7R
{ )Ry<a$Q3
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); M f~}/h
//Utility.log(in.readLine()); 7f3O
sHeader=httpConnection.getHeaderFieldKey(i); 6gH{R$7L=
if(sHeader!=null) cl@g
{ e}hmS 1>H
if(sHeader.equals("Content-Length")) nXy>7H[0
{ Qm4o7x{q
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); ]e'fa/I
break; kD5!}+y
} |'d>JT:
} I_1e?\
else I%j_"r9-I
break; *.#oxcll
} >UDd @
} ~PnTaAPJ
catch(IOException e){e.printStackTrace ();} asHxL!
catch(Exception e){e.printStackTrace ();} :,B7-kBw
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Utility.log(nFileLength); n/~A`%E@
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return nFileLength; !-<p,z
} _ :Ag?2
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//保存下载信息(文件指针位置) TaE~s
private void write_nPos() iOAbaPN
{ sEMQ
try{ zc rY>t#l
output = new DataOutputStream(new FileOutputStream(tmpFile)); |`Or'%|PR
output.writeInt(nStartPos.length); #@HF<'H}mu
for(int i=0;i<nStartPos.length;i++) $+p?Y)h .
{ LbEM^D
// output.writeLong(nPos); .*g0w`H5pU
output.writeLong(fileSplitterFetch.nStartPos); ':{>a28=
output.writeLong(fileSplitterFetch.nEndPos); a.N{-2ptH
} &i+Ce
output.close(); Rk!X]-`=
} WOzf]3Xcj
catch(IOException e){e.printStackTrace ();} 5GA C`}}
catch(Exception e){e.printStackTrace ();} ,R%q}IH#
} SZaS;hhhHu
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//读取保存的下载信息(文件指针位置) >zAUW[]C:I
private void read_nPos() S*o[ZA
{ ,XDRO./+T
try{ Gmwf4>"
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); A, 3bC
int nCount = input.readInt(); f+8wl!M+6
nStartPos = new long[nCount]; / 0 O=(
nEndPos = new long[nCount]; '3zc|eJt&
for(int i=0;i<nStartPos.length;i++) <-D/O$q
{ ^8.]d~j
nStartPos = input.readLong(); #@<9S{F
nEndPos = input.readLong(); [8tL"G6s
} ^[:p|U2mA
input.close(); 1-lu\"H`
} ;r c`OZyE
catch(IOException e){e.printStackTrace ();} i&{DOI%w
catch(Exception e){e.printStackTrace ();} M5gWD==uP
} -f*P
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private void processErrorCode(int nErrorCode) X}+>!%W!}
{ ;)N>t\v
System.err.println("Error Code : " + nErrorCode); wF((
} EoK~S\dS
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//停止文件下载 UQ{L{H
public void siteStop() ggJO:$?$L
{ vZ.x{"n'~
bStop = true; <HbcNE~
for(int i=0;i<nStartPos.length;i++) ``wSc0\
fileSplitterFetch.splitterStop(); u ~A6bK*
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} JvY}-}?c
} dC RyOid$
//负责部分文件的抓取 /~zai}
**FileSplitterFetch.java 8F._9U-EN
*/ &Z`#cMR{H
package NetFox; ~ 4kc/a
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import java.io.*; 8F'x=lIO
import java.net.*; s&RVJX>Rt
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public class FileSplitterFetch extends Thread {
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String sURL; //File URL 2 B
long nStartPos; //File Snippet Start Position p6;OL@\~
long nEndPos; //File Snippet End Position 2nR[Xh?L
int nThreadID; //Thread's ID :Of^xj>A
boolean bDownOver = false; //Downing is over ZzSz%z_sE
boolean bStop = false; //Stop identical 8uWa=C)
FileAccessI fileAccessI = null; //File Access interface 0tXS3+@n=
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public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException C#Na&m
{ ; #&yn=^
this.sURL = sURL; XT4{Pe7{[P
this.nStartPos = nStart; Le\?+h42>
this.nEndPos = nEnd; PpAu!2lt9
nThreadID = id; x^y'P<ypw
fileAccessI = new FileAccessI(sName,nStartPos);//定位 y !_C/!d
} -4
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public void run() 5yP\I+Fm
{ )v.=jup[
while(nStartPos < nEndPos && !bStop) {0WHn.,2Y
{ $42{HFGq
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try{ T( U_
URL url = new URL(sURL); `~By)?cT_>
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 5fd]v<
httpConnection.setRequestProperty("User-Agent","NetFox"); ~5}*
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String sProperty = "bytes="+nStartPos+"-"; De'_SD|=
httpConnection.setRequestProperty("RANGE",sProperty); Zg{KFM%
Utility.log(sProperty); ppVHLrUh
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InputStream input = httpConnection.getInputStream(); oY H^_V
//logResponseHead(httpConnection); R8a3
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byte[] b = new byte[1024]; %5"9</a&G
int nRead; G$F<$
while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) Wa{` VS
{ [q8 P~l
nStartPos += fileAccessI.write(b,0,nRead); ) QU
//if(nThreadID == 1) P&*2pX:
// Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); @emK1iwm
} Ezd_`_@R
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Utility.log("Thread " + nThreadID + " is over!"); j}.\]$J
bDownOver = true;
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//nPos = fileAccessI.write (b,0,nRead); >JFO@O5
}
/} b03
catch(Exception e){e.printStackTrace ();} rrik,qyv6
} Nh_Mz;ITuu
} B#Vz#y
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//打印回应的头信息 vunHNHltW0
public void logResponseHead(HttpURLConnection con) V{/?FO?E
{ $QLcH;+7t
for(int i=1;;i++) .$+#1-
{ 61k"p2?+
String header=con.getHeaderFieldKey(i); }HFN3cq;C
if(header!=null) 'h|DO/X~L
//responseHeaders.put(header,httpConnection.getHeaderField(header)); P2#XKG
Utility.log(header+" : "+con.getHeaderField(header)); K8GP@yD]M
else nxnv,AZG
break; W{6|tx)
} Y5- F@(
} $5aV:Z3P
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public void splitterStop() v$?+MNks
{ |
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bStop = true; "n(hfz0y%
} >UiYL}'br6
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} yerg=,$_i
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/* 96( v
**FileAccess.java `{3<{wgw
*//文件访问(定位,写) L*xhGoC=
package NetFox; D#cyOrzy
import java.io.*; 4'/nax$Bx;
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public class FileAccessI implements Serializable{ vlmB`T
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//RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 0l )~i''
RandomAccessFile oSavedFile; n'n/Tu
long nPos; 6F!+T=
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public FileAccessI() throws IOException `VA"vwz
{ =Y{(%sn
this("",0); <\rT%f}3^
} %g{X ?
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public FileAccessI(String sName,long nPos) throws IOException YxYH2*q@
{ y-'$(x
oSavedFile = new RandomAccessFile(sName,"rw"); :~"CuB/
this.nPos = nPos; g:g\>@Umo
oSavedFile.seek(nPos); -$,TMqM
} t3 8m'J :>
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public synchronized int write(byte[] b,int nStart,int nLen) x
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{ S 6@u@C
int n = -1; 4KhV|#-;k
try{ i1ixi\P{0
oSavedFile.write(b,nStart,nLen); )B"jF>9)[
n = nLen; ]sf7{lVT
} :%tU'w
catch(IOException e) ~7*.6YnI
{ 6iVxc|Ia
e.printStackTrace (); 6M @[B|Q(
} Ra)3+M!x
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return n; I667Gz$j5
} \=VtHu92=
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} S'Q@ScJ
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/* QO<jI#
**SiteInfoBean.java `06;
*/ jl4rbzse
package NetFox; K
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public class SiteInfoBean { {j.bC@hWw
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private String sSiteURL; //Site's URL \(?rQg@U
private String sFilePath; //Saved File's Path CM/H9Kz.
private String sFileName; //Saved File's Name $O&b``
private int nSplitter; //Count of Splited Downloading File pA'4|ffwe
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public SiteInfoBean() B nFwlw
{//nSplitter的缺省值为5 1{)5<!9! l
//default value of nSplitter is 5 K[I=6
this("","","",5); N]>=p.#j
} zGb|) A~,
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public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) =_.l8IYX$%
{ dN$0OS`s[
sSiteURL= sURL; e>} s;H,
sFilePath = sPath; J{.{f
sFileName = sName; 0.`/X66;V
this.nSplitter = nSpiltter; Z;ht
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} wL+s8#{
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public String getSSiteURL() (!ux+K
{ )tC5Hijq,
return sSiteURL; 8}I$'x
} LdYB7T,
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public void setSSiteURL(String value) VACQ+
{ &|s0P
sSiteURL = value; R6` WN
} F%@A6'c
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public String getSFilePath() Yz<3JRw
{ u0JB\)(-/h
return sFilePath; }z eO]"`
} QmQ=q7
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public void setSFilePath(String value) TJ10s%,V
{ p)KheLiZ
sFilePath = value; Tr_w]'
} F6|TP.VY_.
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public String getSFileName() RVZ")Z(
{ %"q9:{m
return sFileName; _~'=C#XI)
} h=W:^@G
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public void setSFileName(String value) W\>fh&!)
{ y%&q/tk
sFileName = value; +jAGGv^)
} MU($|hwiL
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public int getNSplitter() ^7w+l @
{ `{f}3bO7C
return nSplitter; 3(="YbZ
} qz"}g/;?
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public void setNSplitter(int nCount) '*Z1tDFS
{ `XJG(Oas\
nSplitter = nCount; R
} MR;1
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} YDIG,%uv
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/* gt\E`HB8E
**Utility.java Z&G+bdA>,
*/ P9/q|>F
package NetFox; |'e^QpU5
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public class Utility { 46}g7skD
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public Utility() vt/x
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{ e+=y*OmQ
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} m~w[~flgZ
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//线程睡眠 P:hBt\5B
public static void sleep(int nSecond) h!M
{ B~?*?Z'
try{ ,[N%Q#
Thread.sleep(nSecond); >>QY'1Eu
} k)i3
catch(Exception e)
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{ nxO"ua
e.printStackTrace (); v|Pv 03%?7
} bYcV$KJk
} R]JT&p|w.1
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//日志 hE &xE;
public static void log(String sMsg) G?9"Y%
{ _Ym]Mj' ln
System.err.println(sMsg); zZ:>do\2
} bpOYHc6,*`
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public static void log(int sMsg) }cM}Oavh
{ V~UN
System.err.println(sMsg); "0$a)4]
} FK^p")i
}
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Z
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/* W1WYej"
**TestMethod.java 4%{,]
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*/ zp6C3RG(
package NetFox; a f6M,{F
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a y4 %
public class TestMethod { \Yy$MLs
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public TestMethod() w3N[9w?1
{ ///xx/weblogic60b2_win.exe 0}<