/*
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**SiteFileFetch.java dRW$T5dac
*/ _ \D"E>oM
package NetFox; Apj;
import java.io.*; X|}2_B
import java.net.*; 3Bd X
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public class SiteFileFetch extends Thread { tF7hFL5f
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SiteInfoBean siteInfoBean = null; //文件信息Bean : g6n,p_#
long[] nStartPos; //开始位置 Vi*e@IP/
long[] nEndPos; //结束位置 iEm ?
FileSplitterFetch[] fileSplitterFetch; //子线程对象 `JB?c
long nFileLength; //文件长度 3B0PGvCI1
boolean bFirst = true; //是否第一次取文件 Cr C=A=e
boolean bStop = false; //停止标志 v+G=E2Lhv
File tmpFile; //文件下载的临时信息 QA3/
DataOutputStream output; //输出到文件的输出流 r)^vO+3u
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) -0Cnp/Yj@
public SiteFileFetch(SiteInfoBean bean) throws IOException :|+Qe e
{ 1yQejw
siteInfoBean = bean; G2Vv i[c
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); eJ0?=u!x
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ^uBxgWIC
if(tmpFile.exists ()) mN|r)4{`
{ b2,!g }I
bFirst = false; .,0b E
read_nPos(); +Q$h ]^>~
} k{;,6H
else -fS.9+k0/
{ bi[IqU!9
nStartPos = new long[bean.getNSplitter()]; \xv;sl$f
nEndPos = new long[bean.getNSplitter()]; <-'$~G j
} U8.7>ENnP&
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} ~6YMD
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public void run() ^XbU~3(
{ JjaoOe
//获得文件长度 vM:cWat
//分割文件 Hso|e?Z
//实例FileSplitterFetch 4}+/F}TbJ5
//启动FileSplitterFetch线程 g0R~&AN!g
//等待子线程返回 h/?l4iR*
try{ wE+${B03
if(bFirst) fU=B4V4@
{ >B]'fUt5a
nFileLength = getFileSize(); .X# `k
if(nFileLength == -1) hGpv2>M
{ %_ !bRo
System.err.println("File Length is not known!"); MxT-1&XL
} 7}M2bH} \K
else if(nFileLength == -2) ,eTU/Q>{,&
{ ;)N>t\v
System.err.println("File is not access!"); :VTTh
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} eek7=Z
else 'yMF~r3J
{ d3=KTTi\
for(int i=0;i<nStartPos.length;i++) <HbcNE~
{ CrwwU7qKL
nStartPos = (long)(i*(nFileLength/nStartPos.length)); ?@E!u|]K
} g$b<1:8
for(int i=0;i<nEndPos.length-1;i++) j~!X;PV3
{ z^T`x_mF
nEndPos = nStartPos[i+1]; H1}
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} @Y1s$,=xB
nEndPos[nEndPos.length-1] = nFileLength; z11O F
} h*- Pr8
} 8ji_#og
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//启动子线程 6oGYnu;UZ
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; gHo?[pS%y
for(int i=0;i<nStartPos.length;i++) Za1QC;7
{ k |eBJ%
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), DQr Y*nH
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), =>_\fNy
nStartPos,nEndPos,i); oz,e/v8~
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); }hhGu\
fileSplitterFetch.start(); g"}%2~Urf
} E"5*Ei)^3
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), <i&_ooX
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); @0/+_2MH-
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ",
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nEndPos = " + nFileLength); s+<Yg$)
// fileSplitterFetch[nPos.length-1].start(); NA ~Vg8
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//等待子线程结束 m)'=G%y
//int count = 0; 0"f\@8r(
//是否结束while循环 PamO8^!G
boolean breakWhile = false; ,,q10iF
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while(!bStop) %5"9</a&G
{ }E50>g
write_nPos(); |xdsl,
Utility.sleep(500); X:nN0p #
breakWhile = true; RwpdRBb
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for(int i=0;i<nStartPos.length;i++) jK& h~)
{ 0tT(W^ho g
if(!fileSplitterFetch.bDownOver) JR@`2YP-
{ l~w2B>i)
breakWhile = false; *Doa*wQ
break; YUtC.TR1
} C26>BU<
} H4&lb}
if(breakWhile) Ku5\]
break; TJ6*t!'*X
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//count++; `ZyI!"
//if(count>4) \fz<.l]
// siteStop(); 4%>$-($
} 7q?,
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System.err.println("文件下载结束!"); Jh,]r?Bd
} r*2+xDoEi
catch(Exception e){e.printStackTrace ();} CQF:Rnb
} G\2CR*
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//获得文件长度 fI ?>+I5
public long getFileSize() ayR-\mZ
{ y" RF;KW>
int nFileLength = -1; !Xf5e*1IS
try{ a*lh)l<KV
URL url = new URL(siteInfoBean.getSSiteURL()); 46_xyz3+
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); le|~BG hL
httpConnection.setRequestProperty("User-Agent","NetFox"); JjtNP)We
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int responseCode=httpConnection.getResponseCode(); ^a0um/+M}
if(responseCode>=400) N7b8m?!
{ ^ Edfv5
processErrorCode(responseCode); t<.)Z-Ii
return -2; //-2 represent access is error 36}?dRw#p
} cOmw?kA*G
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String sHeader; ,1~"eGl!
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for(int i=1;;i++) 6a(yp3
{ w1Nm&}V
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); SE@LYeC}dE
//Utility.log(in.readLine()); !`Fxa4i>
sHeader=httpConnection.getHeaderFieldKey(i); [%"|G9
if(sHeader!=null) >,V9H$n
{ \:%(q/v"X
if(sHeader.equals("Content-Length")) zqim R#u
{ 1-8mFIK
nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); BRw .]&/
break; gh/EU/~d
} .0zY}`
} pNG:0
else e>} s;H,
break; NW~N}5T
} Q- cFtu-w
} v [wb~uw\
catch(IOException e){e.printStackTrace ();} 7x"R3
catch(Exception e){e.printStackTrace ();} m~iXl,r
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Utility.log(nFileLength); 0at/c-K`
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return nFileLength; L O}@dL
} `!obGMTQ<
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//保存下载信息(文件指针位置) W>${zVu
private void write_nPos() 52@C9Q,
{ H`*LBqDk
try{ :tz#v`3o
output = new DataOutputStream(new FileOutputStream(tmpFile)); +5w))9@
output.writeInt(nStartPos.length); G!Op~p@Jm
for(int i=0;i<nStartPos.length;i++) :vmH]{R
{ !S$:*5=&
// output.writeLong(nPos); GA$V0YQX
output.writeLong(fileSplitterFetch.nStartPos); d2*fLEsF
output.writeLong(fileSplitterFetch.nEndPos); hCi 60%g/n
} %:M^4~dc
output.close(); ,1y@Z 5wy
} /
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catch(IOException e){e.printStackTrace ();} 6/f7<
catch(Exception e){e.printStackTrace ();} b:U$x20n$
} [8Y:65
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//读取保存的下载信息(文件指针位置) 9e<.lb^tP
private void read_nPos() hwPw]Ln/
{ >"??!|XG^
try{ C/q'=:H;
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); DHyq^pJ
int nCount = input.readInt();
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nStartPos = new long[nCount]; cutu DZ
nEndPos = new long[nCount]; {AhthR%(1
for(int i=0;i<nStartPos.length;i++) U'k*_g
{ 6]&OrS[
nStartPos = input.readLong(); .6ylZ
nEndPos = input.readLong(); TtJH7
} 9)h"-H;5:
input.close(); )cX*I gO
} Ab~3{Q]#
catch(IOException e){e.printStackTrace ();} qFicBpB
catch(Exception e){e.printStackTrace ();} G'nmllB`]
} j%Y#(Q>
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private void processErrorCode(int nErrorCode) |.(dq^
{ ]Oe2JfJwx
System.err.println("Error Code : " + nErrorCode); r7RIRg_
} R8Wr^s>'
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//停止文件下载 zUt'QH7E.
public void siteStop() EB0TTJR?#
{ ]RZ|u*l=x
bStop = true; _F4Ii-6
for(int i=0;i<nStartPos.length;i++) Wjo[ENHM
fileSplitterFetch.splitterStop(); vt/x
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} %@<8<6&q
} fnpYT:%fG
//负责部分文件的抓取 Y@NNrGDkT*
**FileSplitterFetch.java \e:7)R2<!x
*/ wVvF^VHV^
package NetFox; 9)D6Nm
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import java.io.*; N,<uf@LQ
import java.net.*; <]6SN
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public class FileSplitterFetch extends Thread { 3RigzT3
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String sURL; //File URL nB_?ckj,
long nStartPos; //File Snippet Start Position C>]0YO
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long nEndPos; //File Snippet End Position xI{)6t$`
int nThreadID; //Thread's ID *zaQx+L
boolean bDownOver = false; //Downing is over p99]
boolean bStop = false; //Stop identical $CRm3#+
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FileAccessI fileAccessI = null; //File Access interface <KJ/<0l
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public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException vRznw&^E
{ S:u:z=:r
this.sURL = sURL; }V'}E\\
this.nStartPos = nStart; 2pZXZ
this.nEndPos = nEnd; |sa]F5
nThreadID = id; kAKK bmE
fileAccessI = new FileAccessI(sName,nStartPos);//定位 d.[8c=$
} #?RU;1)Cw
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public void run() ;p.v]0]is
{ bc*X/).
while(nStartPos < nEndPos && !bStop) <NHH^M\N
{ R$EW4]j
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try{ I^* Nqqq
URL url = new URL(sURL); ~Q*%DRd&Z-
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); >|J`s~?
httpConnection.setRequestProperty("User-Agent","NetFox"); \0A3]l
String sProperty = "bytes="+nStartPos+"-"; y>S.?H:P
httpConnection.setRequestProperty("RANGE",sProperty); ?#Ge.D~u
Utility.log(sProperty); x" 7H5<
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InputStream input = httpConnection.getInputStream(); bAdn &
//logResponseHead(httpConnection); ov|d^)'
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byte[] b = new byte[1024]; LmRy1T,act
int nRead; Dxtp2wu%t
while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) S};#+ufgTt
{ .[YuRLGz
nStartPos += fileAccessI.write(b,0,nRead); JX<)EZ!F
//if(nThreadID == 1) <g-9T -Ky
// Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); .Q<>-3\K
} "x%Htq@
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Utility.log("Thread " + nThreadID + " is over!"); m.hkbet/R
bDownOver = true; -6Z\qxKqZ
//nPos = fileAccessI.write (b,0,nRead); $5>e
} },uF4M.K
catch(Exception e){e.printStackTrace ();} +20G>y=+
} RXNn[A4xfY
} fAF1"4f
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//打印回应的头信息 Cwr~HY
public void logResponseHead(HttpURLConnection con) ^0Zf,40
{ N1}c9}
for(int i=1;;i++) MlcR"gl*
{ {vs
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String header=con.getHeaderFieldKey(i); |U~<3.:m:
if(header!=null) lVd^
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//responseHeaders.put(header,httpConnection.getHeaderField(header)); 84$nT>c
Utility.log(header+" : "+con.getHeaderField(header)); ?xA:@:l/
else XFg9P}"
break; m)8BgCy
} v0ujdp,B
} vx\r!]
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public void splitterStop() v/@^Q1G/:
{ y>:N{|
bStop = true; 1}S S+>`
} rUwZMli
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} EJj.1/]|r
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/* ,aOl_o -&
**FileAccess.java _> f`!PlB|
*//文件访问(定位,写) a Ve'ry
package NetFox; N1Ng^aY0
import java.io.*; ?U%QG5/>
v>:Ur}u!D
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public class FileAccessI implements Serializable{ *lYVY)L
-^K"ZP1
//RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 Amp#GR1CA
RandomAccessFile oSavedFile; y?rPlA_
long nPos; \j+1V1t9
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public FileAccessI() throws IOException -O1>|y2rU
{ au N6prGe
this("",0); ,bXe<L)
} }bs+-K
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public FileAccessI(String sName,long nPos) throws IOException Gp1?iX?ml
{ 63^O|y\W8
oSavedFile = new RandomAccessFile(sName,"rw"); cIUHa
this.nPos = nPos; ?TM,Q
oSavedFile.seek(nPos); +"x,x
} Z.c'Hs+;
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public synchronized int write(byte[] b,int nStart,int nLen) B%"
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{ $}RJ,%~'x
int n = -1; bG 7O
try{ cq5jP Z}
oSavedFile.write(b,nStart,nLen); 1G"z<v
B
n = nLen; ;}7Rjl#
} E08klC0
catch(IOException e) >x/z7v?^I
{ Bs13^^hu
e.printStackTrace (); C`K?7v3$m
} nv GF2(;l
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return n; 3?[dE<
} pN!}UqfI-
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} _|iSF2f,X
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^
/* RdWRWxTn8+
**SiteInfoBean.java d^Inb!%w
*/ u_hD}V^x4
package NetFox; b+,';bW
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public class SiteInfoBean { x%}^hiO<q
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private String sSiteURL; //Site's URL {`J)j6;
private String sFilePath; //Saved File's Path Hv!U|L
private String sFileName; //Saved File's Name `lQ3C{}
private int nSplitter; //Count of Splited Downloading File $Oq^jUJ
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public SiteInfoBean() {,3>"
{//nSplitter的缺省值为5 XnDUa3
//default value of nSplitter is 5 K:!"+q
this("","","",5); V\{clJ\U
} ~s%
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public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) ?:
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{ Hx#;Z
sSiteURL= sURL; ?!;7:VIE
sFilePath = sPath; AB=daie
sFileName = sName; ;LcVr13J/
this.nSplitter = nSpiltter; 9}l33T4T
_
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} l%[EXZ
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public String getSSiteURL() @GkILFN
{ ?
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return sSiteURL; sA/pVU
} %oq{L]C(rf
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public void setSSiteURL(String value) JM=JH
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{ GYJ80k|
sSiteURL = value; MJOz.=CbhR
} ;hYS6
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public String getSFilePath() F=`AY^u0
{ /h+8A',
return sFilePath; s1=X>'q
} :QpuO1Gu
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public void setSFilePath(String value) i'4B3
{ w,w{/T+B
sFilePath = value; j:5=s%S
} }3o|EXx=
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public String getSFileName() 8JM&(Q%#
{ 8C[C{qOJ
return sFileName; nTuJEFn{
} IAYR+c
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public void setSFileName(String value) |rJ=Ksc
{ t0o`-d(
sFileName = value; =o
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} ZNf6;%oGG
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public int getNSplitter() |kw)KEi}H
{ UF?H>Y&
return nSplitter; U@gn;@\
} d\p,2
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public void setNSplitter(int nCount) N03HQp)g
{ 2r!s*b\Ix
nSplitter = nCount; Zw*v
} )^m%i]L_
} aa?w:3
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/* =; ^%(%Y{m
**Utility.java gXYI\.
*/ V=zi
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package NetFox; %1H[Wh(U
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public class Utility { ~p1j`r;
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|UK}
public Utility() 7N-w eX
{ S/^"@?z,vE
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} "]z-: \ V
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//线程睡眠 1abtgDL
public static void sleep(int nSecond) fJ/e(t
{ ~MS\
try{ FO!]P
Thread.sleep(nSecond); U 'R)x";=
} Yj)#k)x
catch(Exception e) 6b+b/>G0
{ q8s0AN'@t'
e.printStackTrace (); OJ/,pLYu
} Ko;{I?c
} 0}$Hi
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//日志 Cg&e(
public static void log(String sMsg) hvA^n@nr
{ lz"OC<D}(
System.err.println(sMsg); BlXB7q,
} }RmU%IYc
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public static void log(int sMsg) an|x$e7|?
{ `|,`QqDQ
System.err.println(sMsg); }*lUah,@
} +w.JpbQ&
} >c9a0A
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/* Z0 o~+Ct$
**TestMethod.java $4tWI O
*/ !|O~$2O@
package NetFox; R$[#+X!
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public class TestMethod { }"=AG
"NgxkbDEbG
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public TestMethod() 3E>frR\!I
{ ///xx/weblogic60b2_win.exe !R1.7}O
try{ h&Efg