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/* BOh&Db* **SiteFileFetch.java )>TA|W]@ */ w`!Yr:dU package NetFox; _`D760q} import java.io.*; ef!I |.FW import java.net.*; UAcABL^2 N3x}YHFF W_iP/xL public class SiteFileFetch extends Thread { >"`:w
?I7H ): d%]7: SiteInfoBean siteInfoBean = null; //文件信息Bean 3F X`dZ long[] nStartPos; //开始位置 N>]u;HjH long[] nEndPos; //结束位置 ]'M4Unu#@ FileSplitterFetch[] fileSplitterFetch; //子线程对象 W@UHqHr:\ long nFileLength; //文件长度 ]}'WNy6c&x boolean bFirst = true; //是否第一次取文件 EEkO[J[= boolean bStop = false; //停止标志 !knYD}Rxd File tmpFile; //文件下载的临时信息 Ef?_d] DataOutputStream output; //输出到文件的输出流 f5sk,Z 8Oc*<^{# //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) F$+_Z~yt3; public SiteFileFetch(SiteInfoBean bean) throws IOException P!]DV$o { F"0tv$ siteInfoBean = bean; %mI`mpf //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); c)E'',-J_2 tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); j&44wuf if(tmpFile.exists ()) B\<zU { E)Hp. bFirst = false; wHIS}OONz read_nPos(); aZBaIl6I } 'i`;Frmg else y<;#*wB { Z ,T TI>P nStartPos = new long[bean.getNSplitter()]; =x[`W9.D nEndPos = new long[bean.getNSplitter()]; x&;{4F Nw } %ecg19~L/} cFH,fj R0m}I5Frs =(hEr=f>7 } X7n~Ws&s@ B*?v`6 ?!A{n3\< public void run() JFZZ-t;* { h|jsi*4NnL //获得文件长度 7J')o^MG //分割文件 /8GVu7 //实例FileSplitterFetch >O?EFd>E //启动FileSplitterFetch线程
gZvl
D //等待子线程返回 S B'.
try{ ^KlMBKWyB if(bFirst) j~L{=ojz% { nE/T)[1| nFileLength = getFileSize(); t`Hwq if(nFileLength == -1) E%40u.0 { {v2Q7ZO- System.err.println("File Length is not known!"); 1;H( } K}a[ ~ else if(nFileLength == -2) xkqt(ng( { Z7%>O:@z System.err.println("File is not access!"); [!DLT6Qk } F%< 0pi else rV1JJ.I { ) tsaDG-E for(int i=0;i<nStartPos.length;i++) e`C'5`d] { UUA7m$F1 nStartPos = (long)(i*(nFileLength/nStartPos.length)); m >'o&Hj } AQ-PY for(int i=0;i<nEndPos.length-1;i++) IcaF4# { YZmD:P nEndPos = nStartPos[i+1]; GMiWS:`;v` } \y<n{"a nEndPos[nEndPos.length-1] = nFileLength; G>H&M#7K } 0iHK1Pt} } w#-rl@JQ4 NShA-G N5 %,)[%>#{ //启动子线程 T>L6 X:d fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; `U?;9!|;6 for(int i=0;i<nStartPos.length;i++) `cf&4Hn { Ip<STz]- fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), }rOO[,?Y siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), [kn`~hI nStartPos,nEndPos,i); oOSw>23x Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); sLB{R#Pt fileSplitterFetch.start(); ;pC-0m0Y } P$w0.XZa // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 7';PI!$ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); JLs7[W)O // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", &)`A4bf% nEndPos = " + nFileLength); 3Vt-]DGX // fileSplitterFetch[nPos.length-1].start(); PUucYc A$%%;O B_@>HZ\& //等待子线程结束 b-~Gt]%>m //int count = 0; 8$@gAlI^ //是否结束while循环 Z7Mc.[C boolean breakWhile = false; Imi_}NB+ LN_6>u dD!} P$ while(!bStop) dNbN]gHC { wUl}x)xo write_nPos(); 9jJ&QACn
Utility.sleep(500); DJ=miJI' breakWhile = true; 9 ?h)U|J?G =Y
/ 3hb1^HNT for(int i=0;i<nStartPos.length;i++) nCYicB { ^
zo"~1 if(!fileSplitterFetch.bDownOver) jh}[7M { Tb~(?nY5 breakWhile = false; GHH1jJ_[7 break; |} .Y&1@U } 22(0Jb\_ } \{abyi; if(breakWhile) g+)T\_#u break; 54tpR6%3p y%3Yr?] [@.%6aD //count++; qhiQ!fMQ //if(count>4) Gu&zplB // siteStop(); ~Kt.%K5lgt } \e ( h6,@ <7u*OYjA _
@ \ System.err.println("文件下载结束!"); .Ml}cE$L } ]cFqKs catch(Exception e){e.printStackTrace ();} eWcS>N } e7 5*84 HJoPk'p% { \r{$<s //获得文件长度 R.+QK6B& public long getFileSize() lvk(q\-f { +loD{
int nFileLength = -1; IO|">a6 try{ 4,TS1H URL url = new URL(siteInfoBean.getSSiteURL()); /GfC/)1_ HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); K)F;^)KDHf httpConnection.setRequestProperty("User-Agent","NetFox"); uFG]8pj2V1 3'*SSZmnOB kS3wa3bT int responseCode=httpConnection.getResponseCode(); (<2PhJ| if(responseCode>=400) +KXg&A/^ { HWD
processErrorCode(responseCode); Oh-HfJyi return -2; //-2 represent access is error t\u0\l> } lSl=6R \jZvP`.2 ^!N _Nx/M String sHeader; UiF ?Nx~ 1JJQ(b >8o RO for(int i=1;;i++) LlX 7g_! { T%?<3/Ev! //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); #![b9~%WTh //Utility.log(in.readLine()); 7BdvJ" sHeader=httpConnection.getHeaderFieldKey(i); Cc/?-0a2! if(sHeader!=null) o= N= W { ~kw[Aw3?D\ if(sHeader.equals("Content-Length")) MQw{^6Z>1 { B%cjRwO T nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); FZb\VUmnV break; V+cHL } DX4uTD } zeNvg/LI^ else pH'#v]" break; ep>S$a*| } U!^\DocAY } :Uj+iYE8Z8 catch(IOException e){e.printStackTrace ();} W UDQb5k catch(Exception e){e.printStackTrace ();} .B_)w:oF 3($%A GKJ l 0jjLqm: Utility.log(nFileLength); xgnt)&7T #Ubzh`v vgo-[^FiP$ return nFileLength; 4Poi:0oOys } _`*x} |j<b? uZ\ > //保存下载信息(文件指针位置) xG\&QE private void write_nPos() *ZF7m_8u{ { M[@).4h try{ (X QgOR# output = new DataOutputStream(new FileOutputStream(tmpFile)); ld$LG6[PA output.writeInt(nStartPos.length); Quc9lL for(int i=0;i<nStartPos.length;i++) N-4LdC { P ;PS+S9 // output.writeLong(nPos); R0,
Q` output.writeLong(fileSplitterFetch.nStartPos); aKkQXq* output.writeLong(fileSplitterFetch.nEndPos); nW!rM($q } _(TavL>l
= output.close(); 2<
w/GX. } Xc"S"a^\% catch(IOException e){e.printStackTrace ();} TY5<hPU= catch(Exception e){e.printStackTrace ();} 2?nK71c" } qun#z$ $xa#+ l7
j3;Ly //读取保存的下载信息(文件指针位置) k2_ " private void read_nPos() #/MUiV { sq*d?<:3 try{ srw5&s(3X DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); 9{^:+r int nCount = input.readInt(); M
g1E1kXe nStartPos = new long[nCount]; ePP-&V"`" nEndPos = new long[nCount]; Xu3o,k for(int i=0;i<nStartPos.length;i++) 4\Mh2z5 { ?SkYFa`u* nStartPos = input.readLong(); v|<Dc8i+ nEndPos = input.readLong(); 71mdU6Kq } blk~r0.2 input.close(); QjVP]C}p } YFy5>*W catch(IOException e){e.printStackTrace ();} O}*[@uv/ catch(Exception e){e.printStackTrace ();} xT#j-T } oJvF)d@gU =Bu d! -A[iTI" private void processErrorCode(int nErrorCode) #x"4tI { ijw'7d|, System.err.println("Error Code : " + nErrorCode); 0jro0f' } {ckA QA+qFP gmJiKuAL5 //停止文件下载 3^xTZ*G public void siteStop() k?o(j/ { Azxy!gDT" bStop = true; ^
RU"v> for(int i=0;i<nStartPos.length;i++) C(Yk-7 fileSplitterFetch.splitterStop(); K!lGo3n] A=Q"IdK H
:}|UW } h?p&9[e` } %TyR8
% //负责部分文件的抓取 X25cU{ **FileSplitterFetch.java {()8 Wr */ lGwX.cA!' package NetFox; w[qWr@
hvnZ
2x.?d #5-0R7\d7 import java.io.*; .\7R/cP}{A import java.net.*; ,/BBG\mJ lCr BXiuVx public class FileSplitterFetch extends Thread { 7N+No.vR. uZ&,tH/ Y4YA1F String sURL; //File URL 8B"jvrs long nStartPos; //File Snippet Start Position =1!wep" long nEndPos; //File Snippet End Position ~T|?!zML int nThreadID; //Thread's ID 9?:SxI;v boolean bDownOver = false; //Downing is over -4mUGh1dy boolean bStop = false; //Stop identical wv|:-8V FileAccessI fileAccessI = null; //File Access interface l'fUa 4(B{-cK Z,.*!S=?h public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException N1jj\.nB { %u-l6<w#R this.sURL = sURL; #*:y2W%H this.nStartPos = nStart; nzmv>s&UW this.nEndPos = nEnd; w&8gA[y*u nThreadID = id; v[T5D: fileAccessI = new FileAccessI(sName,nStartPos);//定位 ~M6Q8Y9 } ~Y<x-)R $cHA_$ ` 2_6x2Ia4 public void run() MM"{ehd{^a { a.L ?J while(nStartPos < nEndPos && !bStop) 2VyLt=mdh { f*04=R?w7> UxzZr%>s w8:~LX.n try{ 1tHTjEG4^3 URL url = new URL(sURL); V
lN&Lz HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); RcitW;{|Kg httpConnection.setRequestProperty("User-Agent","NetFox"); M$d DExd~ String sProperty = "bytes="+nStartPos+"-"; KGS=(z httpConnection.setRequestProperty("RANGE",sProperty); r3<yG"J86 Utility.log(sProperty); *IJctYJaX 7Q7z6p/\v ZY-W~p1:G InputStream input = httpConnection.getInputStream(); |XzqP +t //logResponseHead(httpConnection); n qg=I ,~`R{,N` g!(j.xe byte[] b = new byte[1024]; '9>z4G*Td int nRead; xV @X%E while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) a$.(Zl { f'Dl*d nStartPos += fileAccessI.write(b,0,nRead); `%EMhk //if(nThreadID == 1) BX;Z t9"* // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); }:P/eY } !run3ip`Z m7Nm!Z7 W]{mEB Utility.log("Thread " + nThreadID + " is over!"); P(8zJk6h), bDownOver = true; *D!$gfa //nPos = fileAccessI.write (b,0,nRead); N%'=el4L } *aT3L#0( catch(Exception e){e.printStackTrace ();}
3#}5dO } ?u{y[pI6 } cd)yj&:?Bt %Ak"d+OH4 pi[:"}m]/P //打印回应的头信息 /xj^TyWM public void logResponseHead(HttpURLConnection con) SsiAyQ|Ma { Z6\OkD for(int i=1;;i++) (dv Cejc^p { vG`R. String header=con.getHeaderFieldKey(i); _ #288`bU if(header!=null) .YKqYN?y4 //responseHeaders.put(header,httpConnection.getHeaderField(header)); C
vfm ,BL Utility.log(header+" : "+con.getHeaderField(header)); dp\pkx7 else WDNuR#J? break; =t\HtAXn[ } @2cGx/1# } w0(A7L:L xH#R_ usnbGkq public void splitterStop() UmZ#Cm { ig3HPlC bStop = true; Vi[* a } :
&>PN,q> zBV7b| j A
q;]al } ORHs1/L`j yPL1(i; i7v> 9p7 /* BR*,E~% **FileAccess.java Z;`ts/?SY] *//文件访问(定位,写) eD5.*O package NetFox; {0
d/; import java.io.*; &[ejxK" 2'UWPZgE PMC5qQ%x public class FileAccessI implements Serializable{ AAUFX/}8P W;en7v;#I} //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 =S7Xj`/ RandomAccessFile oSavedFile; ?G%C}8a long nPos; Ml VN'w 'F.Da#st!} H`|8x4 public FileAccessI() throws IOException kBg,U 8|S { pLi_)(#z_ this("",0); #e:cB' f } ?_*X\En*3 77?/e^K\S xsn2Qn/P public FileAccessI(String sName,long nPos) throws IOException UPQ?vh2F2 { wxU@M1w} oSavedFile = new RandomAccessFile(sName,"rw"); },zP,y:cH this.nPos = nPos; 31v0V:j oSavedFile.seek(nPos); tjYqdbA) } g.$a]pZz 706-QE^ ^ur?da9z' public synchronized int write(byte[] b,int nStart,int nLen) tGv5pe*r { ,Axk\7- int n = -1; DtLga[M try{ OOJg%y*H oSavedFile.write(b,nStart,nLen); BnJpC<xm n = nLen; r/o1a't; } uL| Wuq catch(IOException e) o6L\39v_ { hq[;QF:B e.printStackTrace (); Bc{j0Su } sI>I &f48MtE [H ^ktF return n; /Ilve
U`E } 6Q\0v gD`|N@W$5 {}>s0B } i [,9hp 5Us$.p _D<=Yo /* 4h% G %>j **SiteInfoBean.java TKJs'%Q7F6 */ IqEE.XhaK package NetFox; !C ]5_ x -CTMKX fL-lx-~ public class SiteInfoBean { S~L;oX?(! REqQJ7a/ C{Y0}ZrmlF private String sSiteURL; //Site's URL oN3DM; private String sFilePath; //Saved File's Path "&!7wH ,A private String sFileName; //Saved File's Name }XHB7, private int nSplitter; //Count of Splited Downloading File !j8.JP}!) j~DTvWg<Jl ]/31@RT public SiteInfoBean() vZhC_G+tGd {//nSplitter的缺省值为5 Bgw=((p //default value of nSplitter is 5 _"nzo4e0 this("","","",5); 3(?V!y{@ } S)`%clN}J B8J_^kd 7T7
A[A\ public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) l=+hs { aYy+iP'$ sSiteURL= sURL; 7ns n8WN[ sFilePath = sPath; 8rZJvE#c
sFileName = sName; y^OT0mZkg this.nSplitter = nSpiltter; QlxzWd3=q | R\PQ/) P_7QZ0k/ } OO$YwOKS 4th*=ku >aw`kr public String getSSiteURL() 'c]Fhe fb { "INIP? return sSiteURL; 5B:%##Ug5 } *yX5g,52-| VPC7Dh%. TPE1}8p17 public void setSSiteURL(String value) ?LxBH-o( { %X|fp{C sSiteURL = value; kh7RQbNY<I } ([g[\c,H kJP`C\4}f E}qW' public String getSFilePath() d1[;~) { 3rdrNc return sFilePath; ;,WI_iP(w } O%Hc%EfG Qk5pRoL_ 'sII/sq`( public void setSFilePath(String value) W{@,DQ { e@j&c:p(Y sFilePath = value; 6VUkZKc } ?b,4mDptE ^pc?oDPSg frh!dN
public String getSFileName() '?gF9: { Qq7%{`<} return sFileName; ]?un'$%e } fpPB_P{Ua t ZL|;K s@$SM,tnn public void setSFileName(String value) s!g06F { 59R%g .2Y sFileName = value; ;:WM^S } uge~*S yhPO$L xGkc_ public int getNSplitter() 6 d;_} { L>3- z>u, return nSplitter; #qnK nxD } O-3R#sZ0 w/49O;r V m=K46i+NE public void setNSplitter(int nCount) vB?(| { [gkOwU=? nSplitter = nCount; Zws[C }
8MZ:= } S Boi| 0F5QAR
O ,5XDH6L1 /* -J&
b~t@ **Utility.java W Te1E, M */ lj US-6 package NetFox; )x<oRHx] )k~{p;Ke 1m{c8Z.h/d public class Utility { SHA6;y+U/~ 6uu49x_^L4 ^1\[hyZ! public Utility() hpBn_ { -)pVgf G<m6Sf ~a ]R7X7 } }Q1m Fs_zNN //线程睡眠 qKjUp" public static void sleep(int nSecond) zI&). { E%&E<<nhZ try{ &0Bs?oq_ Thread.sleep(nSecond); )VM'^sV? } Fo;. catch(Exception e) JTS<n4<a { 5T-CAkR{n e.printStackTrace (); 8b|m6 6#| } s~b!3l`gu } vO
3-B yyv<MSU8 //日志 '{F
Od_uk% public static void log(String sMsg) VthM`~3 { 8eDKN9kq System.err.println(sMsg); SrT=XX, } 6xW17P XJguw/[wm btDPP k' public static void log(int sMsg)
B@K =^77 { {SJnPr3R System.err.println(sMsg); rhH !-`m } Sd?+j;/" } cS;O]>/5 y"nL9r.,: ,0^9VWZV /* E>L_$J -A- **TestMethod.java a-Ne!M[ */ 3IYbgUG package NetFox; rrc>O*>{i *<l9d #(dERET* public class TestMethod { +]S!pyZ" tK LAA+Z be(p13&od public TestMethod() `\Hs{t] { ///xx/weblogic60b2_win.exe x-Fl|kwX.5 try{ QV*W#K\7q SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); qy,X#y'FuE //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); VK/i5yT5N SiteFileFetch fileFetch = new SiteFileFetch(bean); Y^ti;: fileFetch.start(); -FW'i10\2+ } nOdAp4{:q% catch(Exception e){e.printStackTrace ();} vy{YGT 9 Xx4,#? S+M:{<AR } n||!/u)* <^YZ#3~1T nH(Hk%~ public static void main(String[] args) !k0t
(. { A]%hM_5 s new TestMethod(); E?^A+)<" } zmpQ=%/H } *h Bo,
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