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/* |P[w==AAf **SiteFileFetch.java 1jCLO} */ /rMI"khB package NetFox; t'?.8}?)I& import java.io.*; PjZvQ\Z import java.net.*;
i;]"n;>+/ {,3>" T3~k>"W public class SiteFileFetch extends Thread { Qr1 "Tk7s ~Am,%"%\ Cf TfL3(J SiteInfoBean siteInfoBean = null; //文件信息Bean (^s>m,h long[] nStartPos; //开始位置 O9vQp long[] nEndPos; //结束位置 ,X#2\r<| FileSplitterFetch[] fileSplitterFetch; //子线程对象 9G9fDG#F\I long nFileLength; //文件长度 "k/;[ Wt] boolean bFirst = true; //是否第一次取文件 w0ht boolean bStop = false; //停止标志 BZ:H`M`n File tmpFile; //文件下载的临时信息 --PtZ]Z DataOutputStream output; //输出到文件的输出流 A$<.a'&T! gMY1ts}Z //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) Lilr0|U+ public SiteFileFetch(SiteInfoBean bean) throws IOException l%[EXZ { M*!agh siteInfoBean = bean; lU@]@_< //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); b8~Bazk tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); C3*gn}[ if(tmpFile.exists ()) I2TaT(e\ {
>[MX:Yh bFirst = false; `)`
n(B read_nPos(); <%($7VMev } " |Xk2U else Gnf~u[T6 { }#.L7SIJ<J nStartPos = new long[bean.getNSplitter()]; y603$Cv nEndPos = new long[bean.getNSplitter()]; ^X0P'l&D2 } m4aB*6<lq ZZk=E4aae >{N9kWY aAJU`=uq } OTy.VT| IzsphBI Inn@2$m~ public void run() txW{7[w+, { Q?e*4ba //获得文件长度 (0j}-iaQEZ //分割文件 j:5=s%S //实例FileSplitterFetch }3o|EXx= //启动FileSplitterFetch线程 W"zab //等待子线程返回 xGu r try{ PfreAEv, if(bFirst) Nd`%5%':: { !;0U,!WI nFileLength = getFileSize(); EKA#|^Q:NX if(nFileLength == -1) cVubb}ou { pNOwDJtK System.err.println("File Length is not known!"); qC}-_u7s } DBPRGQ else if(nFileLength == -2) _(Sa4Vb=Q6 { HGXt System.err.println("File is not access!"); Z9MdD>uwi } %C$%!C else kgnmGuka { &0='r;*i for(int i=0;i<nStartPos.length;i++) 3|WWo1 { *FC=X) _&W nStartPos = (long)(i*(nFileLength/nStartPos.length)); P\w\N2 } k40* e\ for(int i=0;i<nEndPos.length-1;i++) L$9.8W { s~>d:'k7| nEndPos = nStartPos[i+1]; \n{qsf: } {. 2k6_1[ nEndPos[nEndPos.length-1] = nFileLength; :E_g"_ } z*kutZ:6Y } 9^,Lc1"M> x97
j x$IX5:E#e //启动子线程 bLe<G fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; &=#[(vl for(int i=0;i<nStartPos.length;i++) >_o} { &QDW9
Mi fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), E_k$W5 siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 'SCidN(n nStartPos,nEndPos,i); #bMuvaP~ Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); |UK} fileSplitterFetch.start(); K <pV } 4kG,*3&2 // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), S/^"@?z,vE siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); X}tVmO? // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", N$h{Yvbn nEndPos = " + nFileLength); &0NFb^8+ // fileSplitterFetch[nPos.length-1].start(); 'XZ)!1N GqWB{$J;" 2W/?q!t //等待子线程结束 T?
tG~ //int count = 0; ])L
A42| //是否结束while循环 '`eO\huf boolean breakWhile = false; KMU4n-s"o \=uKHNP?# "ul {d(K3 while(!bStop) ]3VI|f$$ { -M[$Z y^ write_nPos(); G]fRk^~ Utility.sleep(500); %F!1 breakWhile = true; #>%X_o-o23 G>wqt@%r9 twP,cyR for(int i=0;i<nStartPos.length;i++) lz"OC<D}( { BlXB7q, if(!fileSplitterFetch.bDownOver) }RmU%IYc { pcYG~pZ9 breakWhile = false; IkBei&4F` break; !'mq ?C= } _acE:H } 0Uz\H0T1 if(breakWhile) UG2nX3? break; ROk5]b. ?\$#L^;b} XLAN Np%E //count++; FP;Ccl"s //if(count>4) @r#v[I // siteStop(); .Jt[(; } ;\lW5ZX x/;bu W- Uc_'(IyO System.err.println("文件下载结束!"); Z7_m)@%;kk } JS*m65e catch(Exception e){e.printStackTrace ();} um4yF*3b9 } 4d8B`Fa9 t*>R`,j enp)-nS0 //获得文件长度 } w
5l public long getFileSize() ?RK]FP"A { &e;=cAXG int nFileLength = -1; F{eU";D try{ G`\f URL url = new URL(siteInfoBean.getSSiteURL()); Xb{
[c+. HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ^j". httpConnection.setRequestProperty("User-Agent","NetFox"); QAvir%Y9Q ]@uE#a:[ |g
#K]v int responseCode=httpConnection.getResponseCode(); 7PANtCFb& if(responseCode>=400) 4g
:>[q { 5e$~)fL processErrorCode(responseCode); dHK`eS$sb return -2; //-2 represent access is error wvbPnf^y } e XfZ5(na 4$*%gL;f^ zgs (Dt; String sHeader; /%&2HDA) %n
hm c0hwc1kv- for(int i=1;;i++) yto,>Utzg { -C<zF`jO //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); xZ4~Oo@@_' //Utility.log(in.readLine()); qe!fk?T} sHeader=httpConnection.getHeaderFieldKey(i); H&]gOs3So if(sHeader!=null) yil[gPy4B { w9,iq@ if(sHeader.equals("Content-Length")) 2 !At2P2 { z)9wXo#~ nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader));
Xtp"QY
p break; ;PjQt=4K } &2 `F n!m } sFQ^2PwbS else M-[$L XR break; Zf'TJ`S } o>7ts&rk } i K12pw catch(IOException e){e.printStackTrace ();} Q5FM8Q catch(Exception e){e.printStackTrace ();} #m[|2R *cC_j*1@ rFC" Jx Utility.log(nFileLength); =:/BV=tv !"<MsoY@ e46/{4F, return nFileLength; /\H>y } LE*h9(( E;1Jh(58)b I_xXDr //保存下载信息(文件指针位置) tkXEHsRT private void write_nPos() ;$a@J& { '1$!jmY try{ q*2N{ output = new DataOutputStream(new FileOutputStream(tmpFile)); g_G6~-.9I output.writeInt(nStartPos.length); e_V O3" for(int i=0;i<nStartPos.length;i++) :PtF+{N> { ppFe-wY // output.writeLong(nPos); jcI&w#re output.writeLong(fileSplitterFetch.nStartPos); YhY:~ output.writeLong(fileSplitterFetch.nEndPos); ds&e|VSH; } /r-aPJX output.close(); `&-Mi[1 } uPRQU+ catch(IOException e){e.printStackTrace ();} Ay
!G1; catch(Exception e){e.printStackTrace ();} *Mw_0Y } CT1ja.\; 2AtLyN'. (ZY@$'' //读取保存的下载信息(文件指针位置) V^\8BVw private void read_nPos() j%y$_9a7 { 6$ Gep try{ }J7zTj~{ DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); <x&%~6j int nCount = input.readInt(); rtL}W__ nStartPos = new long[nCount]; .N*Pl(<[ nEndPos = new long[nCount]; VMCLHpSfW for(int i=0;i<nStartPos.length;i++) ({NAMc* { dlG=Vq&Y nStartPos = input.readLong(); jS]><rm nEndPos = input.readLong(); =IUUeFv +r } 6<$Odd input.close(); "h|'}7p } 9Ffp2NW`; catch(IOException e){e.printStackTrace ();} ;q:jl~ catch(Exception e){e.printStackTrace ();} ?gwUwOV" } jaa"~5TO8 \TF!S"V x3u4v~ "- private void processErrorCode(int nErrorCode) XXh6^@H= { 6<' 21 System.err.println("Error Code : " + nErrorCode); 8P"_#M?! } P1NJ^rX wN2QK6Oc O)Y?=G)
//停止文件下载 3;8!rNN public void siteStop() ZvUCI8 { #rY sj-2 bStop = true; HU9Sl*/ for(int i=0;i<nStartPos.length;i++) )x]3Zq fileSplitterFetch.splitterStop(); F* .g;So sYdRh?Hq |=EZ1<KzD } {O+Kw<d } JMVNmq&0 //负责部分文件的抓取 TuW/N
L| **FileSplitterFetch.java 1Jj Y! */ CEC
nq3 package NetFox; YFTjPBV ;r6jx"i Nr0
(E import java.io.*; 9{$'S4 import java.net.*; HFq m6| 4<x'ocKlD /'hC i]b@v public class FileSplitterFetch extends Thread { +z9gbcx 7#~+@'Oe l9Q(xuhv String sURL; //File URL j+^oz'q long nStartPos; //File Snippet Start Position N |1>ooU[ long nEndPos; //File Snippet End Position OKHX)"j\\ int nThreadID; //Thread's ID ^::EikpF% boolean bDownOver = false; //Downing is over P1 zdK0TM boolean bStop = false; //Stop identical ?\#N9+{W FileAccessI fileAccessI = null; //File Access interface <BW[1h1k5_ ncSFj.}w] u-1;'a public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException ^{\<N()R { (708H_ this.sURL = sURL; c)Ic#<e( this.nStartPos = nStart; DaH?@Q this.nEndPos = nEnd; gZEi]/8_ nThreadID = id; Uh'#izm[l fileAccessI = new FileAccessI(sName,nStartPos);//定位 Lgz$]Jbl8 } 2jbIW* $46{<4. -!)xQvagD. public void run() x)UwV { !J=sk4T while(nStartPos < nEndPos && !bStop) )I\=BPo|B { a,o_`s< {,cCEXag% k/03ZxC- try{ jt@SZI` URL url = new URL(sURL); #eN{!Niy&U HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); )9S>ZZF httpConnection.setRequestProperty("User-Agent","NetFox"); }@+NN
?P String sProperty = "bytes="+nStartPos+"-"; q\rC5gk> httpConnection.setRequestProperty("RANGE",sProperty); Q`#4W3-, Utility.log(sProperty); 2Sq_Tw3^ jY6MjZI cD4
kC>P* InputStream input = httpConnection.getInputStream(); TM8=U-A //logResponseHead(httpConnection); ~w</!s HK)cKzG[s! {T'GQz+R" byte[] b = new byte[1024]; KI]wm int nRead; yIb,,!y9{ while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) \]9.zlB { !m(4F(!"h nStartPos += fileAccessI.write(b,0,nRead); ]hud4i~ //if(nThreadID == 1) >|Q:g,I // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); NWfAxkz{/ } ?k[p<Uo 3M0+"l(X ez3Z3t` Utility.log("Thread " + nThreadID + " is over!"); fZKt%m bDownOver = true; kGkA:g: //nPos = fileAccessI.write (b,0,nRead); Y:ldR } `imWc"'Ej catch(Exception e){e.printStackTrace ();} 0GDvwy D1 } 3u>8\|8wz } h7X_S4p/Mg 1ZJQs6 N4K8
u'f^ //打印回应的头信息 ^+SkCO public void logResponseHead(HttpURLConnection con) PS
S?|Vk { 'O6]0l for(int i=1;;i++) Gq#~vr { ,uz ]V1 String header=con.getHeaderFieldKey(i); B$?qQ|0:= if(header!=null) XI Jlc~2 //responseHeaders.put(header,httpConnection.getHeaderField(header)); /Jf~25F Utility.log(header+" : "+con.getHeaderField(header)); %~NH0oFO else ZAuWx@} break; qpJ{2Q } t!1$$e?`r } 7*w VI+ rg_Q"g "Dy'Kd%,%/ public void splitterStop() Z.i{i^/#( { %b?$@H-Re bStop = true; o$.e^XL
} x\s,= n3z pWE `x|J 6O2=Ns;J6 } 7:NmCpgL! RQW6N??C 5~XN>>hp /* ":Edu,6O **FileAccess.java Lh$dzHq *//文件访问(定位,写) ExHAY|UA package NetFox; XH7xT@ import java.io.*; "k$JP Dbx~n#n G >cL{Ya}Rz public class FileAccessI implements Serializable{ DZ
^1s~ s]27l3)B //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 HjWq[[Nz RandomAccessFile oSavedFile; =wi*Nd7L long nPos; '[ P}&<ie, P
,eH5w" 3UUGblg`~ public FileAccessI() throws IOException L3(^{W]| { 1+y"i<3) this("",0); 02JL* } vOI[Z0Lq9h -m 5}#P89 *B)yy[8j+ public FileAccessI(String sName,long nPos) throws IOException ;P?q2jI { FrTg4 oSavedFile = new RandomAccessFile(sName,"rw"); 0m9ZQ
O this.nPos = nPos; ^a9 oKI9n oSavedFile.seek(nPos); ^ons:$0h } w8~K/>!f j%Y\A~DV BRG|Asg( public synchronized int write(byte[] b,int nStart,int nLen) Ek.&Sf$cd' { B`#h{ )[ int n = -1; $<)Yyi>6E try{ &[|VZ[ oSavedFile.write(b,nStart,nLen); mjnUs-`W| n = nLen; HO|-@yOF^ } xcCl
(M]+ catch(IOException e) I12KT~z<r { {#Q\z> e.printStackTrace (); farDaS[\VY } ://U^sFL +zOOdSFk. {GqXP0' return n; U Lmg$T& } &;q<M_< eQX`,9:5 ,35&G"JK5 } @y~P&HUN Yig0/" MXAEX2xmme /* &w~Xa( uu **SiteInfoBean.java 73NZ:h%= */ FY;+PY@I{ package NetFox; >X Qv?5 mU{4g`Iw Nofu7xiDw[ public class SiteInfoBean { ?H;{~n? cHvF* A T.?k>Ak private String sSiteURL; //Site's URL (
76{2 private String sFilePath; //Saved File's Path o#i
]" private String sFileName; //Saved File's Name nf%4sIQ*x private int nSplitter; //Count of Splited Downloading File 7$T8&Mh &&RA4 e 3@x*XI public SiteInfoBean() ij)Cm]4(2 {//nSplitter的缺省值为5 r)l` //default value of nSplitter is 5 nTnRGf\T this("","","",5); )BV=|,j } 9fVj
8G ?AsDk ~3 w^VSj%XH! public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) whkJ pK(
{ pVokgUrC sSiteURL= sURL; Wpm9`K sFilePath = sPath; H*!5e0~rR sFileName = sName; N7.
@FK this.nSplitter = nSpiltter; ;lfWuU%R 0o/B{|rv [QEwK|!L } EnCU4CU` t3F?>G#y nmE5]Pcg public String getSSiteURL() $iJnxqn { V,4.$<e return sSiteURL; N=ifIVc } j=3-Qk`"/| IKm&xzV- %jKH?%Ih public void setSSiteURL(String value) u(vw|nj` { E[S' :Q sSiteURL = value; @W9H9PWv& } =:5<{J OG a&5g!;. APHPN:v public String getSFilePath() Xem| o& { ofwQ:0@ return sFilePath; qC
j*>D } *wUdC $N\+,? M/w{&& public void setSFilePath(String value) gX/NtO% { {[3YJkrM sFilePath = value; Dc:DY:L^
} 5EhE`k4 BMjfqX i:k-" public String getSFileName() >(tO
QeN { o>u!CL< return sFileName; IA4+ad'\E } 9v?V X%J%A-k] 2v^lD(' public void setSFileName(String value) YC)hX'A\ { a!u3HS-i sFileName = value; R~c1)[[E } ,8`O7V{W #:W%,$9\P |Y{PO&-?r public int getNSplitter() B! `\L! { 3/tJDb5 return nSplitter; q!2<=:f
} ;Uk!jQh u%aFb* M71R -B`- public void setNSplitter(int nCount) $h]NXC6J { RUc \u93n nSplitter = nCount; *R!]47Y d } $'u\B } Iv1c4" ohTd'+Lm 9RcM$[~ /* r /yHmEk& **Utility.java >nNl^ yqW */ T{;=#rG< package NetFox; =+(Q.LmhC l'2H4W_+ y*|L:! public class Utility { x~(y "^ph jNqVdP]d\ J(hA^;8: public Utility() dqwWfn1lt { iE+6UK a^/K?lAB8 a(!3Afi } m9b(3 o_3*;}k8 //线程睡眠 s?+fPOF public static void sleep(int nSecond) f@*>P_t { u7~mnl try{ cP('@K=p Thread.sleep(nSecond); M%;"c?g } TRCI\ catch(Exception e) HYFN?~G { g`.{K"N>! e.printStackTrace (); $$~a=q,P[ } 1!s!wQgS } &$Ci}{{n# -PXoMZx% //日志 7A[Ogro public static void log(String sMsg) $%;jk { Wa{%0inZ System.err.println(sMsg); hJ4S3b } r?]%d! 8iOO1I?+ VB's public static void log(int sMsg) y\z*p&I { ( w5f(4 System.err.println(sMsg); t@r#b67WJe } ;6zPiaDQ } ?AT(S A_]D~HH $BaK'7=3* /* g X8**g' **TestMethod.java m/KjJ"s, */ ,=x
RoXYB} package NetFox; fxOE]d8v <\Vi,, \E~Q1eAJT public class TestMethod { |thad!? 0ovZ&l 67fIIXk& public TestMethod() 2$ { ///xx/weblogic60b2_win.exe -2z,cj&E{ try{ "C& J wm? SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); .2/,XwIr //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); M-vC>u3Y SiteFileFetch fileFetch = new SiteFileFetch(bean); bbO+%-(X fileFetch.start(); dUZ$wbV%h } iW":DOdi_ catch(Exception e){e.printStackTrace ();} ,Z?m`cx #[Z< |