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/* .iy4
(P4 **SiteFileFetch.java $lxpwO */ OijuOLt package NetFox; TE
Z%|5(] import java.io.*; O*~,L6# } import java.net.*; m'"r<]pB*4 z=>fBb>w7 %/A>'p,~ public class SiteFileFetch extends Thread { gv`_+E{P *V2;ds.~ l 2Sar1~1 SiteInfoBean siteInfoBean = null; //文件信息Bean z8X7Y
>+SA long[] nStartPos; //开始位置 Hhknjx long[] nEndPos; //结束位置 KqGb+N-@ FileSplitterFetch[] fileSplitterFetch; //子线程对象 lx|Aw@C3~ long nFileLength; //文件长度
t;o\"H boolean bFirst = true; //是否第一次取文件 SoU(fI[6 boolean bStop = false; //停止标志 ;^ME File tmpFile; //文件下载的临时信息 jYVs\h6 DataOutputStream output; //输出到文件的输出流 V}s/knd lx+;<la //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) D>5)',D8xi public SiteFileFetch(SiteInfoBean bean) throws IOException H\>{<`sD;f { .)tv'V/ siteInfoBean = bean; .aNh>`OT' //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); bN_e~ z tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); @[;'b$T$ if(tmpFile.exists ()) a/V,iCiH { pq)
= bFirst = false; ;U(]#pW!t read_nPos(); $4{sPHi)I } 1K9.3n else v[
iJ(C_ { '7'/+G'~& nStartPos = new long[bean.getNSplitter()]; jF?0,g nEndPos = new long[bean.getNSplitter()]; \*t\=4 } DSLX/uo1 Tksv7*5$ S(PV*e8 .:?v;rYk{ } *ak0(yLn) 6:2* < 6u"wgX]H public void run() Zv
%>m { D|zuj] //获得文件长度 8ae`V!5 //分割文件 }uIQ@f` //实例FileSplitterFetch A"7YkOfwH //启动FileSplitterFetch线程 Nw. )O //等待子线程返回 &oMEz 0 try{ @|:fm()
< if(bFirst) 8]#FvgX { 25OQY.>bE nFileLength = getFileSize(); 4 ?BQ&d if(nFileLength == -1) xdO3koE: { ->I.D?p System.err.println("File Length is not known!"); FsqH:I4O } 5X^\AW else if(nFileLength == -2) X4o#kW { NV./p`k System.err.println("File is not access!"); (A?>U_@ } YW7w>}aW else %f;v$rsZ { RJ?)O#} for(int i=0;i<nStartPos.length;i++) .f$2-5q { mPA)G,^ nStartPos = (long)(i*(nFileLength/nStartPos.length)); CNRSc4Le } bVcJ/+Yx| for(int i=0;i<nEndPos.length-1;i++) RZxh"lIo { bg|$1ue nEndPos = nStartPos[i+1]; Kii@Z5R_? } QP(d77n nEndPos[nEndPos.length-1] = nFileLength; |r+ x/,2- } c7+6[y DVE } J0Yb_(w !
#Pn_e al#(<4sJ //启动子线程 ;C-ds fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; F(1E@xs for(int i=0;i<nStartPos.length;i++) CY?J$sN { % (h6m${j fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 7B0`.E^~ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), F+Kju2 nStartPos,nEndPos,i); kVLZdXn,q2 Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Q7u|^Gu,5 fileSplitterFetch.start(); npeL1zO-$ } [`tOhL // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ;ZB=@@l( siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); kt
Z~r. + // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", P_b5`e0O nEndPos = " + nFileLength); $-DW+|p.?^ // fileSplitterFetch[nPos.length-1].start(); yPfx!9B =9,mt
K~ pej-W/R& //等待子线程结束 mqeW,89 //int count = 0; H.?`90IQ //是否结束while循环 trwo(p boolean breakWhile = false; YQ+8lANC &=t~_ Dc At>e4t2@ while(!bStop) G>^= Bm_$ { oG22; write_nPos(); @}jg5} Utility.sleep(500); `Zp*? breakWhile = true; $
^)g, =WN8><K! Qv,ORm
h5 for(int i=0;i<nStartPos.length;i++) tM@%EO { Up-^km if(!fileSplitterFetch.bDownOver) VB^1wm { Q~^v=ye breakWhile = false; Z3zD4-p$_ break; zKk=R6w } W SvhC } O|m-[] if(breakWhile) -=
c&K& break; Z>`frL y2g)*T!m b7'A5]X //count++; e}gGl<((g //if(count>4) "kt7m // siteStop(); j~rW
2( } xE_~.EoB MR,>]|
^ t`6~ud> System.err.println("文件下载结束!"); ).Z
U0fV } iMYJVB= catch(Exception e){e.printStackTrace ();} 5[6{o$I } N#OO{`":Z` &mJm'Ks yqb$,$ //获得文件长度 9nd,8Nji public long getFileSize() $*fEgU% c { AGlFbc(L int nFileLength = -1; |Ntretz`\ try{ 'cN3Vv k URL url = new URL(siteInfoBean.getSSiteURL()); )x,-O#"A HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ,=u!hg httpConnection.setRequestProperty("User-Agent","NetFox"); 74Aecb{ Y,KSr|vG uq!d8{IMu int responseCode=httpConnection.getResponseCode(); ^x >R #.R if(responseCode>=400) {f6~Vwf { sVS),9\} processErrorCode(responseCode); 7?Twhs.O return -2; //-2 represent access is error P#KTlH } n7#}i2: -C*UB Xj6?,J String sHeader; Gd2t^tc
?D@WXE0a p?<T
_9e for(int i=1;;i++) Vg`32nRN { 7@!ne&8Z? //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); ]EvK.ORy //Utility.log(in.readLine()); Dv BRK}' sHeader=httpConnection.getHeaderFieldKey(i); =eeZtj. if(sHeader!=null) Kb#Z(C9 { kSqMI'89 if(sHeader.equals("Content-Length")) ,h9N,bIQg { fXx !_Z nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); 8Dc'"3+6 break; J+nUxF;EE } d+6-ten } )WF*fcx{ else 1NU@k6UHl break; X_J(P? } BWG#W C } }woNI catch(IOException e){e.printStackTrace ();} 5l
/EZ\q catch(Exception e){e.printStackTrace ();} j
!rQa^ MryY<s iriF'(1 Utility.log(nFileLength); wb (quu gO]jeO lZhd^69y return nFileLength; v^Pjvv = } {w VJv1*l ^yVKW5x 47^R //保存下载信息(文件指针位置) 5>"X?U}He private void write_nPos() \~@a/J { <lHVch"(^$ try{ nG !6[^D output = new DataOutputStream(new FileOutputStream(tmpFile)); S,2{^X output.writeInt(nStartPos.length); i.6+CA for(int i=0;i<nStartPos.length;i++) )Vnqz
lI5 { ?LA`v_ // output.writeLong(nPos); `@Tl7I\ output.writeLong(fileSplitterFetch.nStartPos); VF] ~J=>i output.writeLong(fileSplitterFetch.nEndPos); {Z{!tR?+ } u|D|pRM-LT output.close(); $Z{Xt* } 0l>4Umxr{J catch(IOException e){e.printStackTrace ();} B@v"giJg r catch(Exception e){e.printStackTrace ();} 4n,>EA85 } DE _<LN
*B1%- zY&/^^y //读取保存的下载信息(文件指针位置) tg'2v/ private void read_nPos() U%E364;F { ! 4{T<s;q try{ cfA)Ui DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); G [$u`mxV^ int nCount = input.readInt(); 68-2EWq nStartPos = new long[nCount]; 86<[!ZM nEndPos = new long[nCount]; ),]XN#jp(u for(int i=0;i<nStartPos.length;i++) {m7>9{` { pu?D^h9/ nStartPos = input.readLong(); '\I!RAZ nEndPos = input.readLong(); kcN#g-0 } @<,YUp,%S input.close(); q7ubRak } ~Ddlr9Ej catch(IOException e){e.printStackTrace ();} C)xM>M_CB catch(Exception e){e.printStackTrace ();} 1&Ruz[F5 } ~gJJ@j 0n Qvl3=[S CFyu9Al private void processErrorCode(int nErrorCode) 95%QF;h { P!K;`4Ika System.err.println("Error Code : " + nErrorCode); z)&ZoSXWc } T5b*Ia 1DT}_0{0Q *
j]"I=D //停止文件下载 s%l`XW;v public void siteStop() [OK( { +(l(|lQy$ bStop = true; rI.CCPY~s for(int i=0;i<nStartPos.length;i++) g:]X '%Ub fileSplitterFetch.splitterStop(); C6ry]R@ .\:{6_ b]cnTR2E } FvVR \a } W_%@nm\y //负责部分文件的抓取 `@)>5gW&p **FileSplitterFetch.java E/IoYuB */ rIJv(&l package NetFox; FQW{c3%qZ }{S
f* : 7Jpt3 import java.io.*; m(o^9R_=^9 import java.net.*; lz>>{ F*rsi7#!pG `<x((@# public class FileSplitterFetch extends Thread { $9}jU#Z|hd Bt[Wh@ rS&"UH?c7 String sURL; //File URL #[$zbZ(I>: long nStartPos; //File Snippet Start Position {Ne5*HFV long nEndPos; //File Snippet End Position <2,NWn. int nThreadID; //Thread's ID $3c9iVK~_ boolean bDownOver = false; //Downing is over PqVz^(Wz boolean bStop = false; //Stop identical {#C)S&o)6 FileAccessI fileAccessI = null; //File Access interface 0LD$"0v/C3 J_eu(d[9 7*I:cga public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException TkyP_* { w8iXuRv this.sURL = sURL; S\"#E:A this.nStartPos = nStart; ,6AnuA this.nEndPos = nEnd; "HwSW4a] nThreadID = id; U6x$R O! fileAccessI = new FileAccessI(sName,nStartPos);//定位 tQ7:4._ } *-\qO.4\ ,d`6
{ll ]TX"BH"2 public void run() $/#F9>eZ { tQWjNP~ while(nStartPos < nEndPos && !bStop) b9RJ>K { Da-U@e! {v>8Kp7_R J5"d|i try{ ,`,1s9\&t URL url = new URL(sURL); HnsPXF'8g HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 1G<S'd+N httpConnection.setRequestProperty("User-Agent","NetFox"); Zgw4[GpL String sProperty = "bytes="+nStartPos+"-"; LTWiCI httpConnection.setRequestProperty("RANGE",sProperty); ^Gwpx+ Utility.log(sProperty); &qyXi[vw ?"-1QG ;FnU[Q`M#L InputStream input = httpConnection.getInputStream(); C/#?S=w`4 //logResponseHead(httpConnection); ;6}> Shs 1uco{JX<S *)D$w_06S byte[] b = new byte[1024]; JA2oy09G int nRead; :`B70D8ku while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) 51gSbkVX
{ 9}A\BhtiM nStartPos += fileAccessI.write(b,0,nRead); WJTc/ //if(nThreadID == 1) ~A03J:Yc7 // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); ;Z.sK-NJ4 } noZ!j>f{@l k7kPeq sv)4e)1 Utility.log("Thread " + nThreadID + " is over!"); M4)Y%EPc bDownOver = true; LbUH`0:%t //nPos = fileAccessI.write (b,0,nRead); S{jm4LZ } ~FnuO!C catch(Exception e){e.printStackTrace ();} 'OI(MuSn }
e(H{C } 5;@2SY7, 3FG'A[x3O 1Vx>\A //打印回应的头信息 d]vom@iI public void logResponseHead(HttpURLConnection con) 3?Fe(!@ { 6
\}.l for(int i=1;;i++) "EBCf.3- { KM9H<;A String header=con.getHeaderFieldKey(i); *nB-]
w/ if(header!=null) U;#G$ //responseHeaders.put(header,httpConnection.getHeaderField(header)); %?Q< Utility.log(header+" : "+con.getHeaderField(header)); #xh
M&X else w ufQyT` break; 49=L9: } YBL.R;^v } gjzU%{T? NAX`y2z S2
MJb public void splitterStop() vG:S(/\> { -`D<OSt7 bStop = true; Q%W>m0% } Mtc - `SQobH
[IgqK5@ } :}CcWfbT z.;!Pj Z|xgZG{ /* ;Kh?iqn^ **FileAccess.java 5|Oj\L{ *//文件访问(定位,写) '4}8WYKQ package NetFox; "sT)<Wc import java.io.*; "A0y&^4B@ OVGB7CB]S G +AP."M? public class FileAccessI implements Serializable{ 6!H,(Z]j +&G]\WX< //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 T^q^JOC4 RandomAccessFile oSavedFile; _k#GjAPM long nPos; 3R%yKa# UG3}|\.u ^%0^DN public FileAccessI() throws IOException yq[.
WPve { iNilk!d6Q3 this("",0); |l@z7R+4* } <o/l K\> "\u<\CL 53>(2 _/[r public FileAccessI(String sName,long nPos) throws IOException g_rk_4] { pG22Nx oSavedFile = new RandomAccessFile(sName,"rw"); KwgFh#e this.nPos = nPos; m'M5O@? oSavedFile.seek(nPos); s>%.bAxc } >M0^R}v KGc!#C ;@
G ^eQ public synchronized int write(byte[] b,int nStart,int nLen) gLg.mV1< { }z,9!{~` int n = -1; ].sD#~L_ try{ >v f-,B oSavedFile.write(b,nStart,nLen); ^]Q.V n = nLen; n5)ml)m } Nw(hN+_u catch(IOException e) e,d}4 jy { 3i\Np = e.printStackTrace (); S9^SW3 } ~NLthZ(O KzQFG)q , +3sbpl2} return n; ?9>wG7cps7 } @pH6FXVGzt 6:AEg fs-LaV
0 } R0mkEM w#ZzmO ]{|lGtK % /* ; 6PRi/@ **SiteInfoBean.java hwA&SS */ r^H,H'BohJ package NetFox; q*tGlM@R? HXC\``E TY5R=jh= public class SiteInfoBean { W*DKpJy jatlv/, \S1W,H| private String sSiteURL; //Site's URL 8@LUL)" private String sFilePath; //Saved File's Path >P:U9
b private String sFileName; //Saved File's Name f=VlO d private int nSplitter; //Count of Splited Downloading File =F}qT|K G e5Yz.Qv byMy-v; public SiteInfoBean() fD3'Ye<R {//nSplitter的缺省值为5 d R=0K //default value of nSplitter is 5 uA;#*eiA/ this("","","",5); VW*?(,#j{ } Dsn=fht }0Uh<v@ O[{/P:a public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter)
7l[@c|e { $ZZ?*I sSiteURL= sURL; *po
o.Zz sFilePath = sPath; >)G[ww[ sFileName = sName; f6Lc"b3s1 this.nSplitter = nSpiltter; GAZRQ (5,x5l]-N fR~0Fy Gp } '/t9#I@G\ c
q[nqjC= /#SfgcDt public String getSSiteURL() 6({)O1Z { ,4`Vl<6 return sSiteURL; pL}
F{G. } 6R^32VeK($ WVhQ?2@ } 9<toDg_ public void setSSiteURL(String value) <8Tp]1z { CTKw2`5u sSiteURL = value; kX`m(
N$ } /;/:>c 0#Pa;( ,c$tKj5ulQ public String getSFilePath() TBQ68o { _-TW-{7bh return sFilePath;
!bCL/[ } n7G`b' K(lSR b_6cK# public void setSFilePath(String value) A+foc5B { LyNmn.nN sFilePath = value; @1&"S7@}u } K(PSGlI f On~KTt3Mp V|B4lGS& public String getSFileName() NqD Hrx { ,7:-V<'Yv return sFileName; i2(v7Gef } 9W]OtS G _?cum~A@ L@=$0p41; public void setSFileName(String value) IHi[3xf< { ?PTXgIC sFileName = value; S ~h*U2 } 4e
eh+T w xte dI%ho<zm] public int getNSplitter() 1 n&%L8] { P(2OTfGGx return nSplitter; :aaX Y:< } $oM>?h_= 4ytdcb \xl$z*zI public void setNSplitter(int nCount) |39,n~"o& { EK[J!~ nSplitter = nCount; GH-Fqz } "+7E9m6I } Jq(;BJ90R 7=u
Gf$/ na~ FT[3C /* y9R%%i **Utility.java UjoA$A!Od; */ @~|;/OY>" package NetFox; Nb
!i_@m%s v6=%KXSF oOvQAW8` public class Utility { u*I'c2m /Mw;oP{&b r"{jrBK$ public Utility() ys`oHSf { Nj2l>[L; .AO-S)wHR n~\; +U } uHZ4
@w: CR9wp]-Vd //线程睡眠 WrDFbcH public static void sleep(int nSecond) f"j9C%'* { NNqvjM- try{ }}]Lf 3; Thread.sleep(nSecond); yn]Sc<uK } pKq[F*Lut catch(Exception e) lGR0-Gh2 { B?-w<":! e.printStackTrace (); '5$@I{z } 5j ]!r } &}P#<"Fo8Q 5rck]L' //日志 tl!dRV92 public static void log(String sMsg) x X3I` { y6d!?M(0U System.err.println(sMsg); ZpOME@9, } >]ux3F3\ w8Z#]kRv H{5,
-x public static void log(int sMsg) Hqs-q4G$ { |3B<;/v5 System.err.println(sMsg); }`QZV_ } W&9qgbO] } j[dZ*Jr_ FqbGT(QB0 *Us}E7/"' /* ~ <K,P
**TestMethod.java e/+.^ '{ */ #>:S&R?2t package NetFox; (Ytr&gh;0 K O\HH :^{KY(3 public class TestMethod { Nk\ni>Du3 52o^] r`Fs"n#^-4 public TestMethod() ,GVX1B? { ///xx/weblogic60b2_win.exe '9.@r\g try{ VV$#<D<) SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); qvy*;
<w //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); RZ{O6~VH SiteFileFetch fileFetch = new SiteFileFetch(bean); L#a!fd fileFetch.start(); 4l*cX1! } H"w;~;h catch(Exception e){e.printStackTrace ();} 7w9'xY `.~S/$a.& '#=n> } N3#^Ifn[ 1QmOUw}yj }[!=O+gO public static void main(String[] args) A*+gWn,4Y_ { }8}`A\dgV new TestMethod(); N\tFK*U^I } 5
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