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/* x-X~'p'f **SiteFileFetch.java 3,6f}:CG */ ::$W
.!Uv package NetFox; Y_!+Y<x7v import java.io.*; PM#3N2?|E import java.net.*; /WE\0bf *vuI'EbM 5rdB>8W
public class SiteFileFetch extends Thread { 1PUZB`"3 ,p#B5Dif/ rqqd} kA SiteInfoBean siteInfoBean = null; //文件信息Bean VwPoQ9pIS long[] nStartPos; //开始位置 "NGfT:HV long[] nEndPos; //结束位置 ]7Sf) FileSplitterFetch[] fileSplitterFetch; //子线程对象 L/C~l3 long nFileLength; //文件长度 AD?XJ3 boolean bFirst = true; //是否第一次取文件 M\{\WyeX boolean bStop = false; //停止标志 2bG3&G File tmpFile; //文件下载的临时信息 -n"wXOx3 DataOutputStream output; //输出到文件的输出流 oeZuvPCl @*Ry`)T //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) :W1?t*z:[ public SiteFileFetch(SiteInfoBean bean) throws IOException .'<K$:8@| { H${L F.8 siteInfoBean = bean; Y_+#|]=$B //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); 'o#oRK{# tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); QRf>lZP if(tmpFile.exists ()) '6&o:t { Zp~yemERr bFirst = false; R#^ku)0 read_nPos(); TEd5&Z } EGQgrwY5 else /r"<:+ { Hcu!bOQ nStartPos = new long[bean.getNSplitter()]; d8w3Oz54 nEndPos = new long[bean.getNSplitter()]; prz COw } :ZIa pa+'0Y]71 -kMw[Y 1*dN. v:5 } c:7F
2+p 2*z~'i uMZ~[Sz public void run() W3/bM>1 { $KGMAg/H //获得文件长度 fPUr O //分割文件 VYkh@j //实例FileSplitterFetch Z,E$4Z //启动FileSplitterFetch线程 C:5-h(# //等待子线程返回 1Ng.Ukb try{ .
c+m(Pk if(bFirst) Zdqm|_R[ { wb?k nFileLength = getFileSize(); ge
GhM>G if(nFileLength == -1) `7:uc@ { eQu(3 sYb System.err.println("File Length is not known!"); j0; ~2W#G* } :1j8!R5 else if(nFileLength == -2) X%IqZ{{ { -GPJ,S V> System.err.println("File is not access!"); Nyy&'\`! } jo<xrn\ else HC6U_d1-6 { C:t>u.. for(int i=0;i<nStartPos.length;i++) #[{{&sN { ya8p
4N{_ nStartPos = (long)(i*(nFileLength/nStartPos.length)); Mp|Jt } cE
'LE1DK for(int i=0;i<nEndPos.length-1;i++) <Q9l'u]3$c { _90D4kGU nEndPos = nStartPos[i+1]; ?`Yu~a{ } W{"sB:E nEndPos[nEndPos.length-1] = nFileLength; ?I[8rzBWU } lTMY|{9 } s"`~Xnf m.m6. :&vX0
Ce: //启动子线程 ?IHt T3'Rt fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; 0@-4.IHl for(int i=0;i<nStartPos.length;i++) FDLo|aP/v { 6-_g1vq fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), zY_J7,0g siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), *O~y6|U? nStartPos,nEndPos,i); `5Kg[nB: Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); s;OGb{H7 fileSplitterFetch.start(); L?d?O } }h45j84) // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), <WZ{<'ajI siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); ?Te#lp;`~ // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", 8Re[]bE nEndPos = " + nFileLength); /GO- // fileSplitterFetch[nPos.length-1].start(); F%|P#CaB W-s 6+DY N<rq}^qo //等待子线程结束 lfHN_fE>Mq //int count = 0; HfVHjF) //是否结束while循环 ?uSoJM`wa! boolean breakWhile = false; FAdTm#tgW] . fja;aG wBXa;. while(!bStop) M\m:H3[ { `CS\"|z write_nPos(); FE!jN-# Utility.sleep(500); Ur
xiaE breakWhile = true; ;m7G8)I TUnAsE/J& 'cpm 4mT for(int i=0;i<nStartPos.length;i++) w<`0D)mQ { I2$DlEke if(!fileSplitterFetch.bDownOver) \
T#|<= { dXh[Ea^ breakWhile = false; aKriO break; }g/u.@E } 4)w,gp } Z|n|gxe if(breakWhile) {O2=K#J break; +s}&'V^ q!:dZES [n[dr@J7v //count++; R BHDfm'~7 //if(count>4) P!+Gwm{ // siteStop(); z;1dMQ,# } T$D(Y`zdn hE {";/}J QGuqV8 y0 System.err.println("文件下载结束!"); "Wg,]$IvU } :1*E5pX0n catch(Exception e){e.printStackTrace ();} %jjPs. } -orRmn6} %@vF% 2X\Pw //获得文件长度 -H6[{WVW! public long getFileSize() m~
ah!QM { bHG<B int nFileLength = -1; v-z%3x.f try{ Ih:Q}V#6 URL url = new URL(siteInfoBean.getSSiteURL()); dzOco)y HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); kku<0<(N httpConnection.setRequestProperty("User-Agent","NetFox"); gvR]"h 6NX#=A H}kZ;8 int responseCode=httpConnection.getResponseCode(); C~pas~ if(responseCode>=400) Wm6qy6HR {
d78 [(; processErrorCode(responseCode); @6'~RD. return -2; //-2 represent access is error VG
5*17nf5 } rgVRF44X{ P$U"y/ H\QkU`b String sHeader; W\zZ&*8$ J~5V7B S9l,P-X` for(int i=1;;i++) 0vjCSU-X { <rE>?zvm //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); j$q5m 24L //Utility.log(in.readLine()); ~wDXjn"U& sHeader=httpConnection.getHeaderFieldKey(i); I0zx'x)F if(sHeader!=null) qqw P4ceG { ,kJ7c;:i if(sHeader.equals("Content-Length")) >O\+ 9T@ { +u
Iq]tqe nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); kC. !cPd break; FB?~:7+' } =Mx"+/Yo* } 5c]:/9& else 1@p, break; $b|LZE\bU. } + kMj|()>\ } :u,.(INB catch(IOException e){e.printStackTrace ();} D:Q#%wJ catch(Exception e){e.printStackTrace ();} 8Ij<t{Lps QZ&(e2z 7_2D4CI Utility.log(nFileLength); sg7h&<Xx CnB[ImMs(A h}@wPP{ return nFileLength; YjDQ`f/ } gFp3=s0~ {ze69 h a5#G48'X //保存下载信息(文件指针位置) hP+4{F*}- private void write_nPos() lq:q0>vyI { jM$bWtq2 try{ qt@/ output = new DataOutputStream(new FileOutputStream(tmpFile)); +4%~.,<_to output.writeInt(nStartPos.length); Cy?]o?_? for(int i=0;i<nStartPos.length;i++) 1]:,Xa+|S { {KHI(*r; // output.writeLong(nPos); [gBf1,bK output.writeLong(fileSplitterFetch.nStartPos); 2%WeB/)9 output.writeLong(fileSplitterFetch.nEndPos); DKt98; } C<J*C0vQO output.close(); 8S#$'2sT } yDqwz[v b catch(IOException e){e.printStackTrace ();} iKaX8c,zI catch(Exception e){e.printStackTrace ();} 8s6[-F5 } "?zWCH zj r($? eV*QUjS~ //读取保存的下载信息(文件指针位置) rtS cQ private void read_nPos() 67rY+u% { )<V!lsUx'- try{ &Gh,ROo4 DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); mj'~-$5T int nCount = input.readInt(); 5&s6(?,Eu nStartPos = new long[nCount]; 9Do75S{( nEndPos = new long[nCount]; $^fF}y6N for(int i=0;i<nStartPos.length;i++) 1TQ?Fxj { Xq$-&~
nStartPos = input.readLong(); @ !")shc nEndPos = input.readLong(); 4JK6<Pk } nCi
]6;Y input.close(); W5Z-s.o } :<P4=P P catch(IOException e){e.printStackTrace ();} GPHb- catch(Exception e){e.printStackTrace ();} +
-Rf@ } 6HCg<_j] q#3T
L< %J1'>nI!q private void processErrorCode(int nErrorCode) # QwX|x{ { 6c]4(%8 System.err.println("Error Code : " + nErrorCode); @;eH~3P } 6 EqN>. 3yRvs;nWS B7uK:J:c*H //停止文件下载 ]z'L1vQl7 public void siteStop() \L(jNN0_R { bWA_a]G bStop = true; T@ESMPeU:X for(int i=0;i<nStartPos.length;i++) k4$zM/ob fileSplitterFetch.splitterStop(); 7Y@]o=DIc iqR6z\p& FBl,Mky } W\Pd:t } IB#
ua: //负责部分文件的抓取 "m^gCN}c **FileSplitterFetch.java qe&|6 M! */ '|]}f }Go package NetFox; M%_*vD !f(A9V 7kV$O(4 import java.io.*; oA5Qk3b: import java.net.*; 5b rM.. Kc[^Pu OF<:BaRs/ public class FileSplitterFetch extends Thread { d"n>Q Tn\ PV,Z@qm@^ 0E#??gN String sURL; //File URL BaIpX<$T long nStartPos; //File Snippet Start Position E&J<qTH9 long nEndPos; //File Snippet End Position G)~>d/ int nThreadID; //Thread's ID wm#(\dj boolean bDownOver = false; //Downing is over
6xx.Z3v boolean bStop = false; //Stop identical g"sb0d9 FileAccessI fileAccessI = null; //File Access interface T:'<:*pD
1^hG}#6_ ~]%re9jGW public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException rr1,Ijh{D { F'<XB~&o this.sURL = sURL; }}Q h_( this.nStartPos = nStart;
_JpTHpqu this.nEndPos = nEnd; NB3+kf , nThreadID = id; \K2S.j fileAccessI = new FileAccessI(sName,nStartPos);//定位 'yOx&~H] } }rVLWt C]ho7qC qzY:>>d' public void run() 3 P\4K { sFfargl while(nStartPos < nEndPos && !bStop) sWA-_ 4 { jbOwpyH V:D?i#%,z ,!AYeVq try{ 5#_GuL% URL url = new URL(sURL); V+'zuX HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); !Y^B{bh httpConnection.setRequestProperty("User-Agent","NetFox"); bneP>Bd String sProperty = "bytes="+nStartPos+"-"; A{{rNbCK httpConnection.setRequestProperty("RANGE",sProperty); Z~
q="CA4 Utility.log(sProperty); 0n{+_
H5FWk S2I{?y&K InputStream input = httpConnection.getInputStream(); >r:z`^p //logResponseHead(httpConnection); 4[r:DM|8 bA"*^"^ 7'.6/U byte[] b = new byte[1024]; #)DDQ?D int nRead; A9HgABhax while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) (ia+N/$u { eZpi+BRS6 nStartPos += fileAccessI.write(b,0,nRead); 0*OK]`9 //if(nThreadID == 1) 1- GtZ2 // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); $KRpu<5i} } YTe8C9eO mk-L3H1@J3 tpV61L
Utility.log("Thread " + nThreadID + " is over!"); @!\lt$ bDownOver = true; ewYk> //nPos = fileAccessI.write (b,0,nRead); KmF+3g~#s } k
V'0rb catch(Exception e){e.printStackTrace ();} z\J#d 1e } 8
=3#S'n } A{hST~s OYfP!,+bn ui*CA^ Y //打印回应的头信息 Ag]Hk% public void logResponseHead(HttpURLConnection con) q>a/',m { hG/Z65`& for(int i=1;;i++) "Bn]-o|r { vdulrnGqL String header=con.getHeaderFieldKey(i); [+dTd2uZ<\ if(header!=null) y5V]uQSD //responseHeaders.put(header,httpConnection.getHeaderField(header)); oH
[-fF Utility.log(header+" : "+con.getHeaderField(header)); g;nPF*( else wqn}t] break; wGpw+O } y?s#pSX;N } wdgC{WGl aj]%c_])( 4d]T` public void splitterStop() {uO2m*JrI { }~Y#N bStop = true;
0c:jwtf } 7[7Sm^Tw WkY>--^ [~rBnzb } j0K}nS\ P ~Ywt o jDM^e4U.l /* <+7-^o_ **FileAccess.java z9*7fT *//文件访问(定位,写) JMYM}G package NetFox; cM+s)4TPL import java.io.*; d,).O T EqCoeR \CE8S+Z% public class FileAccessI implements Serializable{ <j89HtCz uw&'=G6v //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 @MGc_"b RandomAccessFile oSavedFile; g~=#8nJ long nPos; I'RhA\` @Nt$B'+S& R*psL&N public FileAccessI() throws IOException -Z%B9ql' { 9/S-=VOe.t this("",0); U_c9T> = } ur`:wR] 2? 2f@gR9T JS1''^G&. public FileAccessI(String sName,long nPos) throws IOException HveOG$pT { zpd Z. oSavedFile = new RandomAccessFile(sName,"rw"); KrT+Svm this.nPos = nPos; U ()36 oSavedFile.seek(nPos); cw{[% 7 } 6~0.YZ9 My!<_Hp-W Z:}d\~`x$% public synchronized int write(byte[] b,int nStart,int nLen) "# mr?h_ { p}
}=li> int n = -1; 6<<ihm+ try{ JB= L\E} oSavedFile.write(b,nStart,nLen); u=h/l!lR n = nLen; 7*r7Q' } $n?@zd@53 catch(IOException e) ,;yiV<AD { ]\<^rEU e.printStackTrace (); ?-0>Wbg } @dCoh-Q3 @'EU\Y\l n +z5;'my return n; J0M7f] } *:3`$`\54
( XoL,lJ Ju#t^P } H:BWv08~5 xW\iME u%vq<|~- /* LCRZ<?O[| **SiteInfoBean.java {?' DZR s */ 2!b+}+: package NetFox; -HU5E>xG P p[?E.]P fWywegh public class SiteInfoBean { 0x\bDWZ_ gUB%6v G\I -&*
4~ private String sSiteURL; //Site's URL SablF2doa private String sFilePath; //Saved File's Path BV X6 private String sFileName; //Saved File's Name &i,xod6$ private int nSplitter; //Count of Splited Downloading File gzthM8A ?HBNd&gZ1G 0;j)rmt public SiteInfoBean() ?E0j)P/
( {//nSplitter的缺省值为5 Mg0[PbS //default value of nSplitter is 5 *94<rlh{"
this("","","",5); #B3P3\ } Eh)PZvH |Psi?'4 h7|#7 d public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) r9Wk7?w) { O$
7R<V sSiteURL= sURL; [;/ydE= sFilePath = sPath; {f\/2k3 sFileName = sName; kqfO3{-;{: this.nSplitter = nSpiltter; [wJM=`!W MV<2x7S 1>1&NQ#} } Ap{p_~~iJ a'zf8id =Vv"\p8 public String getSSiteURL() >M\3tB2C { E
{$Jk]c return sSiteURL; i"~J -{d} } ]CD FabzP_<b +pcpb)VL public void setSSiteURL(String value) =1noT)gCR { j>(O1z7 sSiteURL = value; )
N*,cTE } 0L_JP9e W *t+!cU/: [;`B public String getSFilePath() TzT(aWP" { v"VpE`z1# return sFilePath; }j^asuf~c } ?CgqHmf\\( '`#sOH I'Dc9&2 public void setSFilePath(String value) fD<9k { Fy^=LrH=D sFilePath = value; LE!xj 0 } Tji G!W8 qU(,q/l $[L~X
M public String getSFileName() ALVHKL2 { b!C\J return sFileName; K!c "g,S } |'B-^? ; hSQuML mhZ{}~ public void setSFileName(String value) Ib(q9!L { +>b~nK>M sFileName = value; &DQyJJ`k } .v?x>iV \wR $_X& !2-f%x]tO public int getNSplitter() _?"P<3/iF { @N,(82k return nSplitter; .gL%0 } z ;>xI~ hXBAs*4DV8 >/@wht4- j public void setNSplitter(int nCount) iI|mFc|V { @]v}&j7 nSplitter = nCount; (gY3?&Ok* } eD4D<\* } 3
q1LIM 6'YT3= cR'l\iv+ /* e
:(7$jo **Utility.java w;@NYMK) */ cEI
"
package NetFox; (_h=|VjK(I 5bKBVkJ' wKxw|Fpn public class Utility { a8D7n Ea :w|ef; [Dr' public Utility() BvQMq5& { 1b^e4 rC`pTN 05o)Q &` } :G3PdQb^ BC: d@
//线程睡眠 sIUhk7Cd8 public static void sleep(int nSecond) eh\_;2P { S#h-X(4 try{ ~
_ ogeD Thread.sleep(nSecond); 2/Xro rV } 5`Q* catch(Exception e) kYbqb? { ~quof> e.printStackTrace (); 'q3<R%^Q } _C`&(?} } z$64Ep# +D7>$&BD //日志 kq| r6uE public static void log(String sMsg) Q]/ZVcoqo { w)C/EHF System.err.println(sMsg); bwrM%BL } #)}K,FDd !wbO:py[8> O*Gg57a public static void log(int sMsg) O`?qnNmc; { (,nQ7,2EX System.err.println(sMsg); k4N_Pa$}\ } k^VL{z:EWB } Q$Q>pV;uH `$PdI4~J ]rNM3@bVy /* >m:;.vVY **TestMethod.java Nxm^jPM0 */ xDqJsp=]- package NetFox; M `O=rH
} qLjLfJJ2 u-s*3Lg& public class TestMethod { s9# WkDR PHAM(iC&D Dj9v9 public TestMethod() D02'P{ { ///xx/weblogic60b2_win.exe #%9t- try{ 9%#u,I SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); Rb/|ae //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); ZVX1@p SiteFileFetch fileFetch = new SiteFileFetch(bean); B4
k5IS fileFetch.start(); 6o:b(v&Oo } $?Km3N\?v catch(Exception e){e.printStackTrace ();} fA$2jbGW B~ ?R 6 h5)4Z^n } a!@(bb
z> |
)No4fm =I.uf public static void main(String[] args) =67ab_V { ,kQCCn] new TestMethod(); I]@QhCm0 } +X%pUe }
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