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/* oYq,u@oM **SiteFileFetch.java M]0^ind */ QV)}3pW package NetFox; T{ nQjYb? import java.io.*; Hs<n^fyf import java.net.*; LD@7(?mlU JTkCk~bX[z s*{mT6s+T public class SiteFileFetch extends Thread { (6#M9XL iQj2UTds3 (1y='L2rj SiteInfoBean siteInfoBean = null; //文件信息Bean p5qx=p~c long[] nStartPos; //开始位置 le2/Zs$ long[] nEndPos; //结束位置 v|y<_Ya FileSplitterFetch[] fileSplitterFetch; //子线程对象 qnTi_c long nFileLength; //文件长度 `Of[{.Q boolean bFirst = true; //是否第一次取文件 6BPAux.] boolean bStop = false; //停止标志 Cji#?!Ra? File tmpFile; //文件下载的临时信息 Rf8:+d[Jj| DataOutputStream output; //输出到文件的输出流 o~}1oN yr{5Rp05= //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) RR'(9QJ$ public SiteFileFetch(SiteInfoBean bean) throws IOException E~69^cd { )ys=+Pz siteInfoBean = bean; p9w%kM? //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); _}z_yu#jY tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); ox
JGJ if(tmpFile.exists ()) |%3O)B { hqWPf bFirst = false; ]g7HEB.Y read_nPos(); cCYl$Ms kZ } #_,uE9 else WxDb3l~ { 7n
[12: nStartPos = new long[bean.getNSplitter()]; @C<d2f|8 nEndPos = new long[bean.getNSplitter()]; n1JC?+ } J(&Gmk9& S]. Ft/+H !}j,TPpG WkcH5[ } zdT ->% Y"s
)u7 8t--#sDy{0 public void run() s.bT[0Vl { @qpYDnJ: //获得文件长度 JYl\<Z' { //分割文件 ,Os7T 1> //实例FileSplitterFetch 9DY|Sa]#= //启动FileSplitterFetch线程 D'85VZEFyo //等待子线程返回 oFwG+W/ try{ AE]i
V {p if(bFirst) )fy<P;g {
~t$mw, nFileLength = getFileSize(); A&;EV#]ge if(nFileLength == -1) Y]M^n&f { ;*"!:GR%h System.err.println("File Length is not known!"); ''%;EW> } okVp\RC else if(nFileLength == -2) k>$FT` { tu7+LwF7 System.err.println("File is not access!"); {rtM%%l } x$*E\/zi<! else K:Mujx: { ,uKs>T^ for(int i=0;i<nStartPos.length;i++) /kAwe *) { BQ5_s,VM nStartPos = (long)(i*(nFileLength/nStartPos.length)); b-,]A2. } zZ<ns+h for(int i=0;i<nEndPos.length-1;i++) D l4d'&! { 0P3j+?
N% nEndPos = nStartPos[i+1]; -??!@R7V } b1eK(F nEndPos[nEndPos.length-1] = nFileLength; ^!$}
BY } p6B .s_G4 } #?L(#a$k (QA-"9v#i, .jLMl*6%: //启动子线程 &S9f#Ui fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 0zlM.rjEZ for(int i=0;i<nStartPos.length;i++) r.Y*{!t { T$#FAEz fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), iLjuE)6-$ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), d3\OHkM0^ nStartPos,nEndPos,i); 9k(*?!\; Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); rSM$E fileSplitterFetch.start(); kQqBHA } U)SM),bE[ // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), *4r
s siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); 9k714bnMLX // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 03PN{< nEndPos = " + nFileLength); ?"5~Wwp.T // fileSplitterFetch[nPos.length-1].start(); 8=lHUn9l "
whO} Wg}B@:`T //等待子线程结束 =}B4I
//int count = 0; P@^z:RS*{ //是否结束while循环 7Qm;g-)f boolean breakWhile = false; ~ >&I^4 E.?E~}z \f8P`oET~ while(!bStop) SJ1w1^#Pz { #a|6Q 8 write_nPos(); ~E^yM=:h Utility.sleep(500); ckH$E%j breakWhile = true; KK&<Vw|O\
))%@@l[ *#9VC)Q for(int i=0;i<nStartPos.length;i++) T#MA#H2 { g;u<[>'I if(!fileSplitterFetch.bDownOver) Sb@{f<3E { j
AJ/ breakWhile = false; {bAWc. break; NB|RZf9M } 0A)
Vtj$ } Yio>ft&g] if(breakWhile) xI/{)I1f break; zbF:R[) ^yEj]]6 $|`t9-EA/ //count++; lWu9/r 1 //if(count>4) [dSDg2] // siteStop(); [4K9|/J } <3i4NXnL2 I_"Hgx< oTplxF1 System.err.println("文件下载结束!"); ~8KF<2c } i6!T`Kau catch(Exception e){e.printStackTrace ();} aTL8l.c2 } b0~H>cnA Gvt;Q,hH v!pj v% //获得文件长度 l|R<F;| public long getFileSize() N$=(1`zM= { :Y}Y&mA4 int nFileLength = -1; dy2_@/T7 try{ I,C AFq URL url = new URL(siteInfoBean.getSSiteURL()); AF9[2AH=Y HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); UX-_{I
QW httpConnection.setRequestProperty("User-Agent","NetFox"); VuX> pJ2:` f<; Z1)jRE2dl int responseCode=httpConnection.getResponseCode(); v&[X&Hu[ if(responseCode>=400) F#!@}K8 { =|qt!gY)Y processErrorCode(responseCode); XEvGhy# return -2; //-2 represent access is error <WQ<<s@#pb } avHD'zU}N 2yEO=SN,( 7\\~xSXh String sHeader; ex@,F,u>o h a,=LV yL.PGF1( for(int i=1;;i++) 5vUz { |1<]o;: //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); xzMeKC` //Utility.log(in.readLine()); D^N#E>, sHeader=httpConnection.getHeaderFieldKey(i); BST7y4R)BS if(sHeader!=null) Q}=W>|aE. { +qh <
Fj> if(sHeader.equals("Content-Length")) !BvTJ-e)F { ,E/Y@sajn+ nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); r{/ G\ break; LEn=dU } O$<%z[ } aUIc=Z else #TW>'lF break; <y\
Z#z } Y?&DEKFbD } +s/N@]5nW catch(IOException e){e.printStackTrace ();} sw=JUfAhy catch(Exception e){e.printStackTrace ();}
s>*Q c5wkzY h 3gV&`>@ Utility.log(nFileLength); ATMogxh 23(E3:. |;U}'|6 return nFileLength; #^4>U&? } MW",r;l<aM #2lvfR| fbzKO^Ub //保存下载信息(文件指针位置) UpszCY4 private void write_nPos() R+kZLOE { j
J`Zz try{ .5KC'? output = new DataOutputStream(new FileOutputStream(tmpFile)); xM'S
;Sg output.writeInt(nStartPos.length); N?2#YTjR for(int i=0;i<nStartPos.length;i++) evg 7d { 4U! .UNi // output.writeLong(nPos); "z#?OV5 output.writeLong(fileSplitterFetch.nStartPos); cyHak u+ output.writeLong(fileSplitterFetch.nEndPos); WFeMr%Zqh> } ].<sAmL^ output.close(); #<tWYE } jL7MmR#y5" catch(IOException e){e.printStackTrace ();} S$lmEJ_ catch(Exception e){e.printStackTrace ();} <igx[2X } fw:^Lyn9$ \@}$Wjsl O)RzNfI^`N //读取保存的下载信息(文件指针位置) JV?RgFy private void read_nPos() @aiLGwh { F~Z 0 try{ [K)1!KK,L DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); R26tQbwE int nCount = input.readInt(); "$V 8y nStartPos = new long[nCount]; &x0TnW"g nEndPos = new long[nCount]; x@ s`;qz for(int i=0;i<nStartPos.length;i++) n6!Ihip$ { ssr)f8R#,# nStartPos = input.readLong(); CI~;B nEndPos = input.readLong(); SJ~I
r# } =@Nv:1:r input.close(); ^;k _ } l5y#i7 q catch(IOException e){e.printStackTrace ();} J?Ep Nie catch(Exception e){e.printStackTrace ();} MVeQ5c( } J6["j jC Kt;lj q* y9/HnI private void processErrorCode(int nErrorCode) i[t=@^| { @+CSY-g$ System.err.println("Error Code : " + nErrorCode); kO3k|6f= } " ;R3260 PRk%C0` ^; V>}08 //停止文件下载 4h_4jqf=pU public void siteStop() CF}Nom) { +}-W.H%` 0 bStop = true; 76i
rb!- for(int i=0;i<nStartPos.length;i++) JbC\l fileSplitterFetch.splitterStop(); BWi 7v wM4g1H%s \]`(xxt1 } Tx!m6B`Y } +|"n4iZ!) //负责部分文件的抓取 DN8pJa **FileSplitterFetch.java &!YH"{b */ qnfRN' package NetFox; A%m`LKV~@ J,=E5T}U^ hTtp-e` import java.io.*; W] ;6u
import java.net.*; !VJa$>, x"wM_hl5L \lbiz4^> public class FileSplitterFetch extends Thread { \IZ4( Z (z1%lZ}( vYt:}$AE String sURL; //File URL 9c;lTl^4; long nStartPos; //File Snippet Start Position {5tEsv long nEndPos; //File Snippet End Position / ?[gB:s int nThreadID; //Thread's ID wCTR-pL^ boolean bDownOver = false; //Downing is over iBiA0 W boolean bStop = false; //Stop identical 5B.??;xtaV FileAccessI fileAccessI = null; //File Access interface W7[S7kd $9_.Q/9> $}UJs <-F public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException ihBl",l&Hq { <:{[Zvl'k this.sURL = sURL; ?a0}^:6 this.nStartPos = nStart; +e]b,9.sR this.nEndPos = nEnd; 8}#Lo9:,d nThreadID = id; ylxfh( fileAccessI = new FileAccessI(sName,nStartPos);//定位 }.$B1%2 } Lr\ B o>A%}YU !g&B)0u]* public void run() Y&Lk4 { >)A while(nStartPos < nEndPos && !bStop) !6/IKh`J { t02"v4_i l`%}
{3r9 gcCYXPZp try{ 6dy4{i URL url = new URL(sURL); )B&<Bk+ HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); ~\}EROb< httpConnection.setRequestProperty("User-Agent","NetFox"); Q
fyERa\rb String sProperty = "bytes="+nStartPos+"-"; c3!|h1h/v httpConnection.setRequestProperty("RANGE",sProperty); ^$,kTU'= Utility.log(sProperty); SyVbCj LLHOWD C(2 ;)]zv\fC InputStream input = httpConnection.getInputStream(); 4qz{D"M //logResponseHead(httpConnection); .z>." ` WAa1H60VkS w@ylRq byte[] b = new byte[1024]; kJeOlO[ int nRead; U1|4vd9 while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) c^WBB$v { %=<NqINM[ nStartPos += fileAccessI.write(b,0,nRead); ?jm2|: //if(nThreadID == 1) tWOze, N // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); U?ic$J]N } D&m"~wI >(ww6vk2 +}0*_VW Utility.log("Thread " + nThreadID + " is over!"); eC`f8=V bDownOver = true; 446hr zW>@ //nPos = fileAccessI.write (b,0,nRead); 8=o(nFJw } +2o|#`)i catch(Exception e){e.printStackTrace ();} h> %JG'DV } # %y{mn } 2b,TkG8K @Be:+01z .*f4e3 //打印回应的头信息 L0VR( public void logResponseHead(HttpURLConnection con) ?HyioLO { e CUcE( for(int i=1;;i++) ZWW8Hr { $K5s)! String header=con.getHeaderFieldKey(i); i@^`~vj if(header!=null) <0
idG //responseHeaders.put(header,httpConnection.getHeaderField(header)); oNsx Fi: Utility.log(header+" : "+con.getHeaderField(header)); PW<wjf,rQ else j2qfEvU break; .u;TeP } P]x+Q } hGXDu;{ *AQbXw]w P1 >X5: public void splitterStop() 8Xzx;-&4 { y"-{6{3 bStop = true; 7[1
R}G V } ,T~5iLKY i4r~eneP ^JDV4>S\ } SW'KYzn <d`UifqD 1O7ss_E /* #R~NR8(z **FileAccess.java k$_]b0D{4 *//文件访问(定位,写) Z|dZc wo package NetFox; WA5kX SdIb import java.io.*; es FL<T &.4_4"l( km^+
mK public class FileAccessI implements Serializable{ =~m"TQv -XG$ 0 //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 h5keYBA RandomAccessFile oSavedFile; 9d}nyJ long nPos; r8>?-P '="){ @}!$NI8 public FileAccessI() throws IOException w>Sz^_ h { (
+hI this("",0); 8N_rJ)f } cGp 6yf "a{f?
.X. becQ5w/~ public FileAccessI(String sName,long nPos) throws IOException Cjk AQ(9 { M=`Se&-M oSavedFile = new RandomAccessFile(sName,"rw"); O;?~#E<6w this.nPos = nPos; Bcon4 oSavedFile.seek(nPos); I>Yp=R } 6l7a9IJ bLF0MVLM v[3sg2. public synchronized int write(byte[] b,int nStart,int nLen) ^v|!(h\ZC { Hv*O9!cC int n = -1; 'Pu;]sC try{ C$gLi8|m oSavedFile.write(b,nStart,nLen); GTNTx5H n = nLen; OR8o%AxL7 } M?u)H&kEl catch(IOException e) Sxu
v}y\ { AR3=G>hO, e.printStackTrace (); L"/ato } D9C; JD CnYX\^Ow rWqA)j*! return n; m/nn}+*C } $?{zV$r1 I
GtH<0Du 9ksrr{tW } lM,:c.R x&Rp
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N&.p\T&t /* TaT&x_v^~a **SiteInfoBean.java nCB3d[/B */ *?fBmq[j package NetFox; 1<|I[EI P[i/o# ix`x dVj` public class SiteInfoBean { nHjwT5Q+Q gMn)<u > jQ}|]pj+ private String sSiteURL; //Site's URL sTyGi1 private String sFilePath; //Saved File's Path /^G+vhlf\ private String sFileName; //Saved File's Name $7YLU{0 private int nSplitter; //Count of Splited Downloading File _Y {g5t rID]!7~ gHshG;z* public SiteInfoBean() {Aw3Itef {//nSplitter的缺省值为5 E5Jk+6EcMa //default value of nSplitter is 5 32D/%dHC this("","","",5); /p"R}&z } r
|/9Dn% r+u\jZ h zE)>f public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) (5&"Y?#o, { _P1-d`b0 a sSiteURL= sURL;
j"s(? sFilePath = sPath; 2Wtfx"
.y sFileName = sName; DlI|~ this.nSplitter = nSpiltter; #u@!O%MJ Rby7X*.-v PQr
N";+ } iSlVe~ef xW~@V)OH 8w'8n public String getSSiteURL() %xz02$k { sNVD"M, return sSiteURL; h+@t8Q;gGw } \gpKQt0 !
+ 7ve[z HfPeR8I%i public void setSSiteURL(String value) "RA$Twhj { OQvJdjST sSiteURL = value; n0q(EQy1U } >w2u -bF+uCfba *
=l9gv& public String getSFilePath() +
aFjtb { !ZW0yCwLQ return sFilePath; nv]64mL3 } [bXZPIz;j >2/zL.O mgWtjV 8 public void setSFilePath(String value) 'P#I<?vB { 9nE%r\H sFilePath = value; 5hMiCod } )j'b7)W\ &IYkeGQr 0
CS_- public String getSFileName() {5h_$a!TaU { (%Rs&/vU~ return sFileName; ~fe0Ba4 } !k63`(Ti Z#04 ] Tw5BvB1 public void setSFileName(String value) }s[/b"%y { cS"6%:hQ sFileName = value; ZHJzh\? } aXagiz\; x!+a,+G -j,o:ng0 public int getNSplitter() }1wuH { I_rVeMw= return nSplitter; Fz% n!d } XEI]T~ yrX]w3kr% Lsdu:+- public void setNSplitter(int nCount) j>iM(8`t1 { T5h[{J^ nSplitter = nCount; r[~$ } .B*)A. } zl5S)/A 3^Y-P8.zdB ^8iy( /* ITV}f# **Utility.java hGeRM4zVZZ */ eu=2a> package NetFox; xjpW<-)MLf 53QP~[F8R] :`K;0`C+ public class Utility { DH%X+r vKeK] ?kSs7e> public Utility() 21qhlkdc { !IS,[ c
LJCLKJ 'zaB5d~l } ;b^@o,= G r)+O //线程睡眠 ]rS+v^@QH public static void sleep(int nSecond) C1J'. ! { -_3.]o/J try{ H;6V Thread.sleep(nSecond); sXWMXQ3 } qA30G~S catch(Exception e) O_ cK4 { ?=l(29tH e.printStackTrace (); !v-(O"a } #?9oA4Q } Jj!T7f*-GX T1E=<q4 //日志 - M]C-$ public static void log(String sMsg) 9SPu 4i { |Bid(`t. System.err.println(sMsg); 0czy:d,M% } PJLA^e C7> "7g: u- qv:WC
TAn public static void log(int sMsg) SO)??kQ{U { 2+enRR~ System.err.println(sMsg); h5JXKR.1]c } ll#PCgIm
} iAN#TCwLT7 ;8@A7`^ ,oCr6 ] /* F~B8XUa3 **TestMethod.java Ah,Zm4: */ i[<O@Rb package NetFox; 6Z$T&Ul{ W+S>/`N k`- L5#` public class TestMethod { y&
)z\8 =<g\B?s] C}!|K0t? public TestMethod() [8"nRlXH { ///xx/weblogic60b2_win.exe NS1[-ng try{ ,MLPVDN*D SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5);
G~JQcJFj //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); z|9 ^T@) SiteFileFetch fileFetch = new SiteFileFetch(bean); T<OLfuV fileFetch.start();
>4Lb+] } V{n pK( catch(Exception e){e.printStackTrace ();} 'D1@+FFU0 X#J[Nn> eRGip2^cq+ } cX*^PSM u^ T2 T:si?7CR public static void main(String[] args) 0<Y)yNsV { +,smjg:O new TestMethod(); ' o5,P/6 } n8?gZ` W } "0
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