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/* lR
F5/ **SiteFileFetch.java _TJkYz$ */ Z,-TMtM7 package NetFox; :vS/Lzk import java.io.*; SN7_^F import java.net.*; /r&4< @ -J'ked pp#!sRUKPV public class SiteFileFetch extends Thread { %k"hzjXAw &liFUP?
1Qjc*+JzO. SiteInfoBean siteInfoBean = null; //文件信息Bean K0@bh/i/^ long[] nStartPos; //开始位置 :YLYCVi| long[] nEndPos; //结束位置 ht+wi5b FileSplitterFetch[] fileSplitterFetch; //子线程对象 @QYCoEU8J long nFileLength; //文件长度 P3a]*> ., boolean bFirst = true; //是否第一次取文件 ':
Ek3' L boolean bStop = false; //停止标志 VY|UB7,C File tmpFile; //文件下载的临时信息 n~jW DataOutputStream output; //输出到文件的输出流 >$3 =yw% uVX,[%*P //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) _S*QIbO public SiteFileFetch(SiteInfoBean bean) throws IOException uTl"4;&j { ,Cy&tRjR B siteInfoBean = bean; m<;MOS //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ^4[QX
-_2 tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ~dgFr6 if(tmpFile.exists ()) 5YUe>P D { Mx3f T>? bFirst = false; U`{ M1@$ read_nPos(); !af;5F } {)kL7>u]^V else 8[
ZuVJ] { rc`I l{~k nStartPos = new long[bean.getNSplitter()]; b
ts*qx&) nEndPos = new long[bean.getNSplitter()]; PKGqu,J, } ZXbq5p_ b+dmJ]c q}E'x/s2m h9nh9a(2 } hA`9[58/ O!F"w!5@ 0N6 X;M{zh public void run() wSALK)T1{ { SM<qb0 //获得文件长度 ;ae6h
[ //分割文件 Kr4%D* //实例FileSplitterFetch O
"Aeg| //启动FileSplitterFetch线程 -O@/S9]S) //等待子线程返回 @}%kSn5y: try{ Idj Z2)$
if(bFirst) D [v22 5 { mndEB!b nFileLength = getFileSize(); x;4m@)Mu if(nFileLength == -1) g ZES}]N { xKT;1(Mk System.err.println("File Length is not known!"); :X 1Y } N>@.(f&w else if(nFileLength == -2)
vMJC { $ Fy)+< System.err.println("File is not access!"); Aq$o&t } [2
Rz8e^ else ~(cqFf { u b@'(* for(int i=0;i<nStartPos.length;i++)
sBE@{w% { E
/ycPqD nStartPos = (long)(i*(nFileLength/nStartPos.length)); CF+:v(NL } 7=A @P for(int i=0;i<nEndPos.length-1;i++) tg ~7^(s { )_l(WF. nEndPos = nStartPos[i+1]; Ax4;[K\Q } eW_EWVH nEndPos[nEndPos.length-1] = nFileLength; nxuR^6Ai } x
;]em9b } E_xk8X~ %!L*ec%, OJ7y //启动子线程 %VrMlG4hx fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 2T"[$iH!7 for(int i=0;i<nStartPos.length;i++) PJh97%7 { `KP}pi\ fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), sJ_3tjs) siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), n8&x=Z}Xs nStartPos,nEndPos,i); ~ }G#ys\1 Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 6x@]b>W fileSplitterFetch.start(); 368H6 Jj } s%N6^}N // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), z2dW)_fU$ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); k{\a_e` // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", NE@P8pQ> nEndPos = " + nFileLength); A&Q!W)= // fileSplitterFetch[nPos.length-1].start(); Ez>!%Hpn\ &{x`K4N u3PM 7z!~ //等待子线程结束 ZgzYXh2 //int count = 0; Ak\"C4s //是否结束while循环 ^P*+0?aFr boolean breakWhile = false; <yKyM#4X c+<gc:#jy _b[Pk;8}j; while(!bStop) \@7 4I7 { &KeD{M% write_nPos(); ZD8E+]+ Utility.sleep(500); b$B-LvHd1 breakWhile = true; Z
Mf,3 O$Dj_R# J]&nZud` for(int i=0;i<nStartPos.length;i++) VmTgD96 { #XAH`L\ if(!fileSplitterFetch.bDownOver) 7"{CBbT { 2AjP2 breakWhile = false; Nbm$ta break; PE+{<[n } DJH,#re> } leJ3-w{ 2 if(breakWhile) /<IXCM. break; jTok1k l @r`NFWD@ RgVg~?A@ //count++; rGSi
!q //if(count>4) #Xun>0 // siteStop(); 1h?:gOig } A)TO<dl }ev+WIERQV h56s ~(?O System.err.println("文件下载结束!"); G*^4CJ } ~#JX
0J= catch(Exception e){e.printStackTrace ();} |Fzt|
\ } Ua>.k|>0 V5]\|?= d%ncI0f` //获得文件长度 au7@- _ public long getFileSize() bY=Yb { Hd~fSXFl int nFileLength = -1; <V4"+5cJ8 try{ ^|%7}=e URL url = new URL(siteInfoBean.getSSiteURL()); +PHuQ HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); _dn*H-5hO httpConnection.setRequestProperty("User-Agent","NetFox"); boIFN;Aq" -k@Uo(MB ch0x*[N@ int responseCode=httpConnection.getResponseCode(); /C[XC7^4' if(responseCode>=400) N|s8PIcSp { x@<!# d+ processErrorCode(responseCode); N_y#Y{c{( return -2; //-2 represent access is error (7}Zh|@W } 2H`;?#Uq: vb k4 :j%
B(@b String sHeader; kX'a*AG KU;m.{ unkA%x{W; for(int i=1;;i++) ~RnBs`&! { qnU$Pd //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); vXcgl //Utility.log(in.readLine()); c}#(,<8X sHeader=httpConnection.getHeaderFieldKey(i); @-}!o&G0 if(sHeader!=null) Z+! 96LR { -<gQ>`(0 if(sHeader.equals("Content-Length")) x!9bvQT { ut9R]01: nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); Yk#$-"c/a break; l)91v"vJ } VV=6v;u` } ]hA]o7k else LfG$?<}hR break; R~XNF/QMl } I$Fr8R$ } K|{&SU_m catch(IOException e){e.printStackTrace ();} q|R$A8)L. catch(Exception e){e.printStackTrace ();} 4S,/Z{ J. D$bJ s O <e' l"3+9( Utility.log(nFileLength); vTYgWR,h }{
"RgT-qG \E2S/1p return nFileLength; h>jp.%oOu } [IW6F ZfIeq<8_ }zV#?;} //保存下载信息(文件指针位置) 3})0p private void write_nPos() 1
,4V8gp { &pLCN[a try{ ]7_O#MY1 output = new DataOutputStream(new FileOutputStream(tmpFile)); 97SG;,6 output.writeInt(nStartPos.length); !fG`xZ~ for(int i=0;i<nStartPos.length;i++) V@1K { >oc&hT // output.writeLong(nPos); v`u>;S_ output.writeLong(fileSplitterFetch.nStartPos); %Z6\W;
(n output.writeLong(fileSplitterFetch.nEndPos); Zl`sY5{1 } N`i`[ f output.close(); %c,CfhEV%& } 55|.MXzq catch(IOException e){e.printStackTrace ();} 7!E7XP6,~> catch(Exception e){e.printStackTrace ();} E 5bo60z } Z~Z+Yt;,9a
`_H^k!^ _<G% //读取保存的下载信息(文件指针位置) |m>n4-5QL private void read_nPos() "]{"4qV1= { 8\ WOss)al try{ cK+y3`.0 DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); r=pb7=M#LN int nCount = input.readInt(); vE+OL8 V nStartPos = new long[nCount]; $;%dQ!7* nEndPos = new long[nCount]; QCk(qlN'h9 for(int i=0;i<nStartPos.length;i++) Z8 _QKw> { x<e-%HB*- nStartPos = input.readLong(); .TWX,# nEndPos = input.readLong(); mdD9Q
N01 } ) "Toh=x] input.close(); /2PsC*y } *;C8g{ catch(IOException e){e.printStackTrace ();} n`)wD~mk catch(Exception e){e.printStackTrace ();} M4TFWOC1 } #2*2xt t#[u
X? -, #LTW<. private void processErrorCode(int nErrorCode) z;EnAy {9 { l<mEGKB# System.err.println("Error Code : " + nErrorCode); k@= LR } P(BV J_n r=ds'n" w~(x*R} //停止文件下载 tqo!WuZAj public void siteStop() x2gP, p- { a0ze7F<( bStop = true; ~_Mz05J-\_ for(int i=0;i<nStartPos.length;i++) :-kXZe fileSplitterFetch.splitterStop(); IW'2+EGc juuV3et iy_\1jB0 } zx{O/v
KG } r'ydjy //负责部分文件的抓取 5=.EngG **FileSplitterFetch.java 8QGj:3 */ |.Pl[y package NetFox; +tXOP|X !zNMU$p C=/nZGG import java.io.*; #dgWXO import java.net.*; D%Y{(l+X z3[0BWXs -f-2!1&<3h public class FileSplitterFetch extends Thread { :J}@*>c 8HLcDS# 7E9h!<5v String sURL; //File URL .1F^=C.w long nStartPos; //File Snippet Start Position H19CVc\B long nEndPos; //File Snippet End Position k98}Jx7J)" int nThreadID; //Thread's ID L){rv)?=" boolean bDownOver = false; //Downing is over _8'F I_E3 boolean bStop = false; //Stop identical P2Ja*!K] FileAccessI fileAccessI = null; //File Access interface vK\;CSk
oGLSk(T&I K>`7f]?H*e public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException E@_M|=p& { nJ4CXSdE this.sURL = sURL; e1RtoNF ^ this.nStartPos = nStart; ;U|^Tsuc` this.nEndPos = nEnd; h?:lO3)TL= nThreadID = id; zAxwM-` fileAccessI = new FileAccessI(sName,nStartPos);//定位 q#RVi8(' } WqC6c&NM TvWhy`RQ E5M*Gs public void run() ),-4\!7 { 6tbH( while(nStartPos < nEndPos && !bStop) Ir*,fyl { kE".v|@ @:. 6'ji,` gi7As$+E try{ n8M/Y}mH URL url = new URL(sURL); M,Px.@tw. HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); *s6MF{Ds httpConnection.setRequestProperty("User-Agent","NetFox"); pAV}hB String sProperty = "bytes="+nStartPos+"-"; T@]vjXd![ httpConnection.setRequestProperty("RANGE",sProperty); (r^IW{IndX Utility.log(sProperty); /y,~? g'`J'6Pn x=qACoq InputStream input = httpConnection.getInputStream(); jBEt!Azur //logResponseHead(httpConnection); XRI1/2YA kl| KFdA; !o 7uZC\ byte[] b = new byte[1024]; .JpYZ | int nRead; BcT|TX+ct while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) -NVk>ENL4 { T!hU37g h? nStartPos += fileAccessI.write(b,0,nRead); 2f]9I1{ //if(nThreadID == 1) 2I'\o7Y // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Wv"[,5
Z13 } 'Z7oPq6 0n_Cuh\ O4&/g- Utility.log("Thread " + nThreadID + " is over!"); IjDG bDownOver = true; ~`{HWmah //nPos = fileAccessI.write (b,0,nRead); mLO{~ruu } IrXC/?^h catch(Exception e){e.printStackTrace ();} n\ma5"n0=\ } F,e_ ` } '8>#`Yba T"Wq: )*^PMf //打印回应的头信息 ;1cX|N= public void logResponseHead(HttpURLConnection con) /s=TLPm { 1C=}4^Pu for(int i=1;;i++) L`+\M+ { E<a~
`e String header=con.getHeaderFieldKey(i); *kxk@(lT? if(header!=null) 6yF4%Sz9 //responseHeaders.put(header,httpConnection.getHeaderField(header)); =?57*=]0M Utility.log(header+" : "+con.getHeaderField(header)); >;QkV6i7 else fZXJPy;n break; 5-w6(uu } 5Lt&P
5BY } 9r7QE&. D|Z,eench P!m~tu}B public void splitterStop() @-;-DB]j { Xig+[2zS bStop = true; 7BF't!-2F } ^$_a_ft# e9q/[xMi iYv6B6o/99 } P7E}^y`e 5gV8=Ml"V ag?@5q3J} /* L"tj DAV **FileAccess.java ^?toTU *//文件访问(定位,写) _q=$L
eO5 package NetFox; c?eV8h1G import java.io.*; mxQS9y s+^o[R
T3 :M ix*NCf public class FileAccessI implements Serializable{ r[M]2h '8k\a{t_z //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 (1(3:)@S6 RandomAccessFile oSavedFile; Os8]iNvW\ long nPos; 8R:H{)o~s} ` /]8C&u uHQJ& public FileAccessI() throws IOException 42Vy#t/HC { *s?&)][ this("",0); 8{JTR|yB } :
Ot\l h.4;-& oRy?Dx+H public FileAccessI(String sName,long nPos) throws IOException & HphE2 h { dlK#V) oSavedFile = new RandomAccessFile(sName,"rw"); %o#D" this.nPos = nPos; $}OU~d1q oSavedFile.seek(nPos); 0c7&J?"wE } f;pR8 ~?-U
J^# {*t'h?b public synchronized int write(byte[] b,int nStart,int nLen) Fm,A<+l@u { xwT"Q=|kW int n = -1; @OFl^U0/ try{ ERGDo=j oSavedFile.write(b,nStart,nLen); X'jEI{1w n = nLen; 0V}vVAa(B } @w6^*Z_hQ catch(IOException e) [CRy>hfV { ~@BV e.printStackTrace (); vo uQ.utl } b\gl9"X '|4/aHU TR{8A^XhE8 return n; \#2,1W@ } ?_W "=WpC )R9>;CuC9? Tr/wG } 1(hgSf1WH qJ"dkT* 9qwVBu ; /* -1S+fUkiK/ **SiteInfoBean.java wXXv0OzK */ Xj+1]KRN package NetFox; |m k $W$h s4MP!n?gB +Z$X5Th public class SiteInfoBean { !j %)nU @/anJrt 3'u%[bx
E private String sSiteURL; //Site's URL T_jwj
N private String sFilePath; //Saved File's Path =#T6,[5
private String sFileName; //Saved File's Name 5[X^1 private int nSplitter; //Count of Splited Downloading File ;5" r)F+P cdzzS?$) MZ+8wr/y public SiteInfoBean() Gk799SDL {//nSplitter的缺省值为5 ?)4|WN|c_ //default value of nSplitter is 5 8dIgw this("","","",5); i]hFiX } wOHK
dQ' wc~a}0uz I.y|AQB public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) e#kPf 'gL { E;VW6[M sSiteURL= sURL; ]4uIb+(S sFilePath = sPath; JZu7Fb]L9 sFileName = sName; \)y5~te* this.nSplitter = nSpiltter; 09|d< dW8'$!@!! .__X[Mzth3 } b*dRNu c0!bn b q*Ns]f'a public String getSSiteURL() ;13lu1 { (.%:Q0i1 return sSiteURL; 7ou2SL}k } |`qur5h` ?PyI#G
/o8`I
m public void setSSiteURL(String value) [^ 7^&/0 { <&l3bL sSiteURL = value; W.zA1S } 4X#>; Pm+H!x, JsfbY^wz public String getSFilePath() H -.3r { A3'i
- return sFilePath; K{M_ 4'\ } @] )a "-v9V7KCM g"#R>&P public void setSFilePath(String value) )F4er' { .t"s>jq 1 sFilePath = value; 'cH),~ z } *|euC"5c (X>r_4W$ ms;Lu-UR public String getSFileName() 4"l(rg { bhe|q`1,E return sFileName; I \vu?$w } 6G@_!i*2F "-ZuH v`y{l>r, public void setSFileName(String value) Uy_`=JZ { |P5?0{ sFileName = value; 86IAAO`# } eSa ]6 xiA9X]FB _6=6 b!hD public int getNSplitter() G_j`6v) { ^Y #?@ return nSplitter; 0qJ(3N } bG.aV#$FIg N1#*~/sXh <-}6X public void setNSplitter(int nCount) wQM(Lm#Q { C+y:<oo) nSplitter = nCount; y3;G<9K2c] } "5Kx]y8 } z%*ZmF ^K +` Em& ub,Sj{Mq" /* wG^{Jf&@$ **Utility.java 5"XcVH4g */ oh& PQ{ package NetFox; IWm|6@y aeH
9:GQ6 7|,5; public class Utility { InPq1AH ;"joebZ/ E@t~juF! public Utility() +(cs,?`\ { TmzEZ<} &7
x,>@IEN7 zpg*hlv } 9-bDgzk
WNd(X} //线程睡眠 RMLs(?e public static void sleep(int nSecond) DJrA@hm/Y { s'} oVx] try{ gtCd#t'(V Thread.sleep(nSecond); `n5)oU2q } !n)2HDYhx, catch(Exception e) lXv{+ic { @BW~A@8 e.printStackTrace (); ~Qzm!Po, } uiDR} } 47
m:z5; Dyt}"r\ //日志 D}\%
Q # public static void log(String sMsg) (MNbABZQ { 5^0W\
System.err.println(sMsg); 7*@qd& } #G9S[J=xe (hd2&mSy QabF(}61
public static void log(int sMsg) K-p1v!IC { bS*
"C,b~s System.err.println(sMsg); K[T?--H } 5;dnxhf } l4r09"S|V j>?c]h{- .D)'ZY /* X<Vko^vlj **TestMethod.java Qy@chN{eP */ ]_F%{ 8| package NetFox; wCn W]<+ ~p8-#A)X,) L6 hTz' public class TestMethod { _E&*JX Z4E:Z}~'' _?O'65 public TestMethod() DFR.F:O% { ///xx/weblogic60b2_win.exe a{Tv#P*! try{ 1_GUi SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); MlS<txFPS //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); =wI,H@ SiteFileFetch fileFetch = new SiteFileFetch(bean); ~{U~9v^v( fileFetch.start(); JsVW:8QO~ } I.q nA catch(Exception e){e.printStackTrace ();} A9$q;8= < qBKIl=
ne ETjlq]@j } vxZz9+UbF 2hmV1gj "{L%5:H@ public static void main(String[] args) In^$+l%O[ { N55;oj_K new TestMethod(); Ngh9+b6[ } Q@/wn } !cp
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