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/* )]A9~H **SiteFileFetch.java \[k%)_ */ l% |cB93 package NetFox; C.HYS S import java.io.*; k<, u0 import java.net.*; kdBV1E+:C /p}{#DLB *]'qLL7d public class SiteFileFetch extends Thread { F(E<,l2[ V{FE [v_ ?C~X@sq SiteInfoBean siteInfoBean = null; //文件信息Bean #|ddyCg2 long[] nStartPos; //开始位置 cdN/Qy long[] nEndPos; //结束位置 #Jv43L H FileSplitterFetch[] fileSplitterFetch; //子线程对象 }\4p3RQrz long nFileLength; //文件长度 p6[#f96^u boolean bFirst = true; //是否第一次取文件 GY7s boolean bStop = false; //停止标志 w~{| S7/ File tmpFile; //文件下载的临时信息 >3+FZ@.iT DataOutputStream output; //输出到文件的输出流 V*~423 X/wmKi //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) R|H[lbw public SiteFileFetch(SiteInfoBean bean) throws IOException =
uk`pj[l { lY->ucS %P siteInfoBean = bean; 1XGG.+D //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 3!bK d2" tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); u&tFb]1@) if(tmpFile.exists ()) +:!ScG* { ~xE=mg4le bFirst = false;
N)P((>S; read_nPos(); e^Aa! } %GS\1 Q% else yFi6jN#~ { n_u`B|^Pj nStartPos = new long[bean.getNSplitter()]; j,4,zA1j| nEndPos = new long[bean.getNSplitter()]; `>\4"`I } }<.7 xz|V lc"qqt [='p!7z aSTFcz" } m'SmN{(t y 3IA ' RE*WM3QK~ public void run() o|+E+l9\ { FXeV6zfrE //获得文件长度 =Iy/cHK //分割文件 Dw*Arc+3V //实例FileSplitterFetch -}< d(c //启动FileSplitterFetch线程 :;q>31:h //等待子线程返回 &q"'_4 try{ R|$[U if(bFirst) xHm/^C&px { 0FTRm2( nFileLength = getFileSize(); ]u;GNz}? if(nFileLength == -1) 90?,-6 { V8\$`NEP System.err.println("File Length is not known!"); m:b^,2"g } 6TY){Pw else if(nFileLength == -2) -!i;7[N { ~~U< System.err.println("File is not access!"); 6#fOCr;f7 } T7^ulG1' else YN4"O> { \m%J`{Mt for(int i=0;i<nStartPos.length;i++) g%X &f_@ { ~c!Rx' nStartPos = (long)(i*(nFileLength/nStartPos.length)); ot]>}[
} x3gwG)Sf for(int i=0;i<nEndPos.length-1;i++) \ibCR~W4 { 32s5-.{c/f nEndPos = nStartPos[i+1]; Is<x31R } >1m)%zt nEndPos[nEndPos.length-1] = nFileLength; xnT3^ #-h } " \`BPN } W0C{~|e o*-h%Z. N4A&"1d& //启动子线程 Sy4
mZ}: fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; a5X`jo for(int i=0;i<nStartPos.length;i++) W^003*m~~K { Q^[e/U, fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), FPvuzBJ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), (%6(5,
nStartPos,nEndPos,i); Z@;jIH4 ( Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); \>4v?\8o fileSplitterFetch.start(); Akv(} !g } lj4%(rB= // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), bd,Uz%o_ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ]bs+: // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", ht2
f-EKf{ nEndPos = " + nFileLength); Xg,0 /P~ // fileSplitterFetch[nPos.length-1].start(); 7WgIhQ~ n?zbUA# $Z,i|K; //等待子线程结束 3fm;r5 //int count = 0; '`9%'f) //是否结束while循环 aB=vu=hF boolean breakWhile = false; U)u\1AV5 a#YuKh? ;I[ht while(!bStop) :!(YEF#} { dVPq%[J2 write_nPos(); lr-12-D%- Utility.sleep(500); 2T//%ys= breakWhile = true; AQB1gzE ?@3#c &/sGh0 for(int i=0;i<nStartPos.length;i++) oK#\HD4U { LKIW*M if(!fileSplitterFetch.bDownOver) C(EYM$ { z\e>DdS breakWhile = false; XyvZ&d6(d break; caGML|DeI } c:3@[nF~ } 1P(%9 if(breakWhile) $7msL#E7 break; XC*uz l. XknF 17WNJ //count++; 7vii9Am7 //if(count>4) h9w@oRp`~ // siteStop(); <P|`7wfxE } Ko1AaX(I'+ N|UBaPS|o 0q:(-z\S4 System.err.println("文件下载结束!"); t9?R/:B% } [SCw<<l< catch(Exception e){e.printStackTrace ();} hO^&0? } hZp=BM"bJ 8]sTX9 `%FIgE^ //获得文件长度 }V\P,ck public long getFileSize() di8W2cwz { ]cx" int nFileLength = -1; /d{glOk try{ QN)/,=# URL url = new URL(siteInfoBean.getSSiteURL()); 8W19#?7>B HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); T[i7C3QS httpConnection.setRequestProperty("User-Agent","NetFox"); M,.b`1-w
jz|Wj pi^^L@@d int responseCode=httpConnection.getResponseCode(); (! xg$Kz@ if(responseCode>=400) )$ ofl%+ { aEcktg6h processErrorCode(responseCode); P3+)pOE-SI return -2; //-2 represent access is error aeG#:
Ln+{ } ML=hKwCA 9
eSN+q t7{L[C$ String sHeader; RnMB Gxa @m+pr\h( GCcwEl!K^ for(int i=1;;i++) y3&Tv { c'4>D,?1 //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); @?<N +qdH> //Utility.log(in.readLine()); &/B2)l6a sHeader=httpConnection.getHeaderFieldKey(i); yf
`.% if(sHeader!=null) 3S[w' { Fv?R\`52u if(sHeader.equals("Content-Length")) 8vz_~p9%j { r!{w93rPX nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); SRA|7g}7W break; 1Pud,!\%q } qWRNHUd } %00k1*$ else Jo6~r- break; ]I{qp~^#n } 844tXMtPB\ } vDu0 catch(IOException e){e.printStackTrace ();} tb-OKZq catch(Exception e){e.printStackTrace ();} uB5h9&57 a<OCO0irJ ](B&l{V Utility.log(nFileLength); [47K7~9p .jU|gf:x v YRt2({}Z return nFileLength; +zFV~]b } , aRJ!AZ r*X}3t* jOoIF/So //保存下载信息(文件指针位置) )'BJ4[aq\ private void write_nPos() Ee t+ { MZUF! B
try{ dD/29b( output = new DataOutputStream(new FileOutputStream(tmpFile)); s,UN'~e1 output.writeInt(nStartPos.length); l|@/?GaH for(int i=0;i<nStartPos.length;i++) ;4-pupK~% { m[g< K // output.writeLong(nPos); |QAeQWP+1 output.writeLong(fileSplitterFetch.nStartPos); &=s| output.writeLong(fileSplitterFetch.nEndPos); 6e$sA (a=i } 9B!im\]O output.close(); veYsctK~ } 4b3 F9 catch(IOException e){e.printStackTrace ();} 'k-u9 catch(Exception e){e.printStackTrace ();} <|KKv5[ } ^7ea6G" %nDPM? aO 7]M,yIwc //读取保存的下载信息(文件指针位置) G1#Bb5q: private void read_nPos() &xGfkCP.] { z:ru68 try{ <B]i80. DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); Dyouk+08x int nCount = input.readInt(); Z ]7;u>2 nStartPos = new long[nCount]; \U)2
Tg nEndPos = new long[nCount]; VgFF+Eg for(int i=0;i<nStartPos.length;i++) Se^/VVm { GvZac nStartPos = input.readLong(); RvyBg:Aj5 nEndPos = input.readLong(); l6&v}M } Ie^Dn!0S input.close(); 1K?
&
J2 } !^>LOH>j catch(IOException e){e.printStackTrace ();} LH3N}J({ catch(Exception e){e.printStackTrace ();} }%o+1 <= } c:?#zX %vf2||a$BS v
GR
\GFm private void processErrorCode(int nErrorCode) 'K;4102\ { |l6<GWG+ System.err.println("Error Code : " + nErrorCode); O]Ry3j } 5O;a/q8" uhC= Ww'TCWk@ //停止文件下载 dPH!
V6r public void siteStop() u/!mN2{Rd { !\&7oAs=I bStop = true; )MD*)O for(int i=0;i<nStartPos.length;i++) }Ll3AR7\ fileSplitterFetch.splitterStop(); <iXS0k b2}QoJ@` #czyr@ } ga{25q}" } 6PzN>+t^y //负责部分文件的抓取 7/^TwNsv **FileSplitterFetch.java ~q8V<@? */ 9?g]qy,1) package NetFox; 8CnI%_Su 7+D'W7Yx 7?Qt2tr import java.io.*; h87L8qh9 import java.net.*; 0'V- pE(<XD3Q L6rs9su=7 public class FileSplitterFetch extends Thread { {x&jh|f`g *&hXJJ[+ 7G>0,'XC
String sURL; //File URL `G ;Lz^ long nStartPos; //File Snippet Start Position ArmL, long nEndPos; //File Snippet End Position \[IdR^<YM int nThreadID; //Thread's ID +%Bf
y4F6 boolean bDownOver = false; //Downing is over +9Hk+. boolean bStop = false; //Stop identical vHI"C % FileAccessI fileAccessI = null; //File Access interface Top#u
9s\i(/RxW U7*VIRibv+ public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException 3h D2C'KD { &aevR^f+ this.sURL = sURL; 1VjeP
* this.nStartPos = nStart; /SqFP
L] this.nEndPos = nEnd; -9H!j4]T? nThreadID = id; DX%8.@ fileAccessI = new FileAccessI(sName,nStartPos);//定位 S,`Sq8H } q*RaX
4V ltr;pc*) F"m}mf public void run() 3f:1D=f { Iu1Sj`A while(nStartPos < nEndPos && !bStop) 3|83Jnh { t0asW5f 2LxVt@_R!% OuBMVn try{ eX
l%Qs#Y URL url = new URL(sURL); zW"3K HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); MR)KLM0 httpConnection.setRequestProperty("User-Agent","NetFox"); *v:,rh String sProperty = "bytes="+nStartPos+"-"; #nc@!+ httpConnection.setRequestProperty("RANGE",sProperty); }*}`)rj, Utility.log(sProperty); z[lRb]:i[ m|ERf 2- soqNzdTB2 InputStream input = httpConnection.getInputStream(); Y8`))MeD //logResponseHead(httpConnection); ZTBFV/{ E!}-qbH^ S!I <m&Cgc byte[] b = new byte[1024]; vU$O{|J int nRead; qs
c-e,rl while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) >nIcFm { 0m+5Zn nStartPos += fileAccessI.write(b,0,nRead); ~g4rGz //if(nThreadID == 1) Q5Ghki // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); "PX3%II } XM@-Y&c$A .f92^lu9 }_kI> Utility.log("Thread " + nThreadID + " is over!"); 5k%N<e`` bDownOver = true; y8~)/)l& //nPos = fileAccessI.write (b,0,nRead); 6rN5Xf cS } dT,m{[+ catch(Exception e){e.printStackTrace ();} S~a:1
_Wl } WH*=81)zp } X_s G6Q@ h&k^l, t!=~5YgKs //打印回应的头信息 #g`cih=QL public void logResponseHead(HttpURLConnection con) 0Li'a{n 2 { ;DgX"Uzm for(int i=1;;i++) c7nk~K[6 { +} ! F(c String header=con.getHeaderFieldKey(i); z7Rcnr; if(header!=null) ,?~UpsUx //responseHeaders.put(header,httpConnection.getHeaderField(header)); dT@SO Utility.log(header+" : "+con.getHeaderField(header)); SE}RP3dF! else sO4}kxZ break; ! ?U^+)^$ } Mevyj;1t } Pl5NHVr Uo[5V|>X6 hq8/`u
YF public void splitterStop() zUUxxS_? { _~S^#ut+ bStop = true; UVBw;V } }zS&H-8K 69I.*[ E5[]eg~w%{ } E=_B@VJknW wyzBkRg. iJKm27 "> /* io?{ew **FileAccess.java
s8_NN *//文件访问(定位,写) gl7vM package NetFox; "1`i]Y\' import java.io.*; (zYSSf!I K"6+X|yxE DdS3<3]A public class FileAccessI implements Serializable{ :-WCW);N Jgv>$u //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 -2na::<K RandomAccessFile oSavedFile; bZ22O"F long nPos; QGz3id6 pQMpkAX & Dl'*| public FileAccessI() throws IOException JX@6Sg< { ND9>`I5 this("",0); rIWN!@.J } h`;F<PFW yJ`1},^ F-7b`cF9[r public FileAccessI(String sName,long nPos) throws IOException KsU&<eQ { {_X1&&>8/ oSavedFile = new RandomAccessFile(sName,"rw"); "O1*uwm this.nPos = nPos; 6p]R)K>wS oSavedFile.seek(nPos); 79B`w
# } |`;1p@w" 6M vRR 7
} MJK) public synchronized int write(byte[] b,int nStart,int nLen) -0IFPL8 { V45Udwp^ int n = -1; yY-t4WeXP try{ =qR7-Q8B oSavedFile.write(b,nStart,nLen); DHNii_w4v n = nLen; lGHu@(n< } K2o0L5Lke catch(IOException e) -[7,ph { #.L0]Uqcp e.printStackTrace (); 3)Awj++ } T0"0/{5-_ pW^ ?g|_} Y*`A$
return n; I4X+'fW, } G@<lwnvD*J \C2P{q/m {,C8}8a W } %ih7Jt #`)-$vUv^f hRZS6" # /* j{-7Pf8A **SiteInfoBean.java ;OCI.S8 */ +X(^Q@ package NetFox; 3pjYY$' Jas|P}{=fT {)gd|JV* public class SiteInfoBean { l3#dfW{
M9jo<+ -/2$P private String sSiteURL; //Site's URL 3b[+m}UWQ private String sFilePath; //Saved File's Path D!$ =oK private String sFileName; //Saved File's Name Vyq<T(5 private int nSplitter; //Count of Splited Downloading File ,u^0V"hJ [qMO7enu# 8=o5;]Cg public SiteInfoBean() [QN7+#K, {//nSplitter的缺省值为5 8*~:gZ7: //default value of nSplitter is 5 BW-P%:B1!R this("","","",5); D!T4k]^ } /IW=+ri Ty:Ir YYr&r.6 public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) Q|z06_3i { p#BvlS=D sSiteURL= sURL; =(5GU<} sFilePath = sPath; i[^lJ)[>N sFileName = sName; =&/a\z! this.nSplitter = nSpiltter; p[cL#fBz Y@S6m@.$ Vg~
kpgB } }w^ T9OC ZBq*<VtV s1$#G!' public String getSSiteURL() Cj9O[ { 'wnY>hN return sSiteURL; O36r
,/X } C|@k+^S Z?aR9OTP
w*P4_=
:%Y public void setSSiteURL(String value) yBh"qnOT { sq|@9GS0T sSiteURL = value; 9<c4y4#y } `v2l1CQ:^ Ngc+< w$:)wyR- public String getSFilePath() rAw1g,& { NKhR%H return sFilePath; u0hbM9U> } z n8ig/C NG!Q< !Y OmbKx&>YGz public void setSFilePath(String value) "$cT*}br { 24/~gft sFilePath = value; 6="&K_Q7 } .p~;U|h" Vy~$%H94 fQ4$@ public String getSFileName() q=i<vcw
{ |aJ6363f. return sFileName; N;pr: } 7[0k5- [E1|jcmQ o"M^sKz47 public void setSFileName(String value) :I(gz~u6 { )nxIxr0d- sFileName = value; kzpbs?<; }
ts!aKx w=o m7%J@l -\C6j public int getNSplitter() Qnx92 { o xu9v/ return nSplitter; K05Y;URbd } b/Q"j3 3Dv koV svjFy/T(lL public void setNSplitter(int nCount) .: ;Hh~ { e"mfJY nSplitter = nCount; >g0@ Bk } 'X<uG
x } U2nRgd 3g:+p
<r3n?w8 /* x99
Oq! **Utility.java ^V]DY!@k3_ */ k T>}(G|| package NetFox; :E`l(sI7J} h
l'k_<a* 6ng g*kE< public class Utility { j&GKp t K):sq{ :#jv4N public Utility() .cog9H' { 'p]qN;`'O$ 0\*<k`dY %$?Q% } d's`~HOU2 *3Z#r //线程睡眠 tTp`e0L*m public static void sleep(int nSecond) XhV"<&v { O#Hz5A5 try{ 8}T3Fig,q Thread.sleep(nSecond); bkI A:2HX } /2cOZ1G; catch(Exception e) ) <~7<.0 { W78-'c e.printStackTrace (); !,uw./8@Ku } `Db}q^mQ } zZiVBUmE< JdEb_c3S //日志 _'a4I; public static void log(String sMsg) sH: &OaA { {v
0(0 System.err.println(sMsg); H`@7o8oj1 } &H{>7q#r O0YGjS|d 4q8%!\A+ public static void log(int sMsg) $dw;Kj'\ { '8
#*U System.err.println(sMsg); N3RwcM9+; } -
[j0B|cwG } {v(|_j&:o kICYPy S3cQC`^ /* ~zRd||qv **TestMethod.java 8!Kfe */ N6'Y
N10 package NetFox; ;\.&FMi TA7w:< !/j|\_O public class TestMethod { -E"o)1Pj6C c[q3O** WLH2B1_): public TestMethod() R8*4E0\br { ///xx/weblogic60b2_win.exe XW:(FzF try{ 5w3'yA<vE SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); $=R\3:j //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); cG6+'=]3< SiteFileFetch fileFetch = new SiteFileFetch(bean); \v Go5` fileFetch.start(); 4+:u2&I } v)EJ|2` catch(Exception e){e.printStackTrace ();} 5GP'cE pUx@ QyrI AWcPOU } #*@Yil=1 '"a8< |