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/* v:E;^$6Vn **SiteFileFetch.java L>dkrr)e */ -"=)z/S package NetFox; ~W<CE_/]k import java.io.*; +b^]Pz5 import java.net.*; @Mm/C?#*O cFK @3a *i^`Dw^~y public class SiteFileFetch extends Thread { h4_b!E@ [)^mBVht GF8 -_X SiteInfoBean siteInfoBean = null; //文件信息Bean sYJL-2JX long[] nStartPos; //开始位置 C5|db{=\.* long[] nEndPos; //结束位置 # ly@;!M FileSplitterFetch[] fileSplitterFetch; //子线程对象 OF[?Z long nFileLength; //文件长度 &iNwvA%9D boolean bFirst = true; //是否第一次取文件 gV8"VZg2 boolean bStop = false; //停止标志 hoenQ6N^: File tmpFile; //文件下载的临时信息 XVt/qb%)r DataOutputStream output; //输出到文件的输出流 e+. \pe\ wd[eJcQ , //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) ad9CsvW public SiteFileFetch(SiteInfoBean bean) throws IOException 4WC9US-k { C-m*?))go siteInfoBean = bean; `5q
;ssu //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); yEq#Dr tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); *^]~RhjB if(tmpFile.exists ()) Tzzq#z&F { Ytao"R/ bFirst = false; d|XmasGN read_nPos(); "xe=N } 4U=75!> else Z<U>A
{ F30
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nStartPos = new long[bean.getNSplitter()];
W^Y#pn nEndPos = new long[bean.getNSplitter()]; mk!Dozb/ } lT'9u,6 T dk
,&8 5{K}?*3hJ *FK`&(B+} } ](#&.q%5! ib$nc2BPb DVlJ*A public void run() &fwS{n;U { glE^t6) //获得文件长度 er2cQS7R //分割文件 x&Cp> +i //实例FileSplitterFetch ; Y"N6% //启动FileSplitterFetch线程 N>|XS
, //等待子线程返回 =wG+Ao try{ <P_ea/5:| if(bFirst) ~=En+J}* { bl;zR nFileLength = getFileSize(); Ow:1?Z{4 if(nFileLength == -1) fuUm}N7 { @*>Sw>oet System.err.println("File Length is not known!"); C$d>_r } t{dSX?<nt else if(nFileLength == -2) AQss4[\Dx { }fZ`IOf System.err.println("File is not access!"); u,1}h L } +/rH(Ni else #Yuvbb[ { geM6G$V& for(int i=0;i<nStartPos.length;i++) RO&H5m r%@ { ^B/9{0n' nStartPos = (long)(i*(nFileLength/nStartPos.length)); 3QXjD/h } [q*%U4qGO for(int i=0;i<nEndPos.length-1;i++) JWv{=_2w { J~#$J&iKh nEndPos = nStartPos[i+1]; >?lOE
-}^ } 52d^K0STC nEndPos[nEndPos.length-1] = nFileLength; C[uOReo } kW@,$_cK } w%y\dIeI' ?F7o!B k|YWOy@D~ //启动子线程 yClx` S( fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; +Qxu$# for(int i=0;i<nStartPos.length;i++) 71fk.16 { mee$"Y fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), l|/LQ/ siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), -nbMTY} nStartPos,nEndPos,i); 5fJ[}~ Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 4)6xU4eBaL fileSplitterFetch.start(); _[K"gu } DgHaOAdU // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 3;[DJ5 siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); A"v{~ // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", Q=uR Kh nEndPos = " + nFileLength); T ?Fcohz( // fileSplitterFetch[nPos.length-1].start(); g(C|!}ex/ |X19fgk crcA\lJf //等待子线程结束 (u3s"I
d //int count = 0; "2?l{4T\ //是否结束while循环 23!;}zHp boolean breakWhile = false; o|BP$P8V hm*cw[#O1x 1oLv.L while(!bStop) D*PYr{z' { O81X;JdP3 write_nPos(); .7NNT18 Utility.sleep(500); o Y}]UB> breakWhile = true; DZS]AC* BYrZEVM9 :1ecx$ for(int i=0;i<nStartPos.length;i++) !y:%0{l { @|}BXQNd if(!fileSplitterFetch.bDownOver) +|iYg/2 { AK!hK>u` breakWhile = false; N6OMYP1 break; /93l74.w } wC_l@7t } epHJ@ W@# if(breakWhile) nlYR-. break; +!IQj0&'Y3 @Ky> 9m{ '*^yAlgtt //count++; /iC;%r1L //if(count>4) N==ZtKj F // siteStop(); /cr}N%HZB } Ys+OB*8AE H5CR'Rp $?G"GQ!. System.err.println("文件下载结束!"); g>rp@M } l%ayI catch(Exception e){e.printStackTrace ();} $rF=_D6 } eN?Y7 LVJI_ O{fH 7hW+T7u? //获得文件长度 ._w8J"E5 public long getFileSize() :<Y}l-x { J_;N:7'p int nFileLength = -1; w%AcG~`j!B try{ KlV:L 4a~ URL url = new URL(siteInfoBean.getSSiteURL()); C?ib_K* HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); NcOPL\ httpConnection.setRequestProperty("User-Agent","NetFox"); o%{'UG )n49lr6X :A
%^^F% int responseCode=httpConnection.getResponseCode(); 5!YA o\S if(responseCode>=400) %CwL:.| { n% 'tKU\q processErrorCode(responseCode); Pi,QHb`> return -2; //-2 represent access is error A1)wo^, } -oeL{9; uwf
5!Z:> Hs?e0Z=N String sHeader; h&.wo ! {>LIMG-f Pg9hW for(int i=1;;i++) t^]$!H { EN{]Qb06A //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); XC 7?VE //Utility.log(in.readLine()); TD[EQ sHeader=httpConnection.getHeaderFieldKey(i); YjF|XPv+ l if(sHeader!=null) ^,l_{ { ?Xdak|?i if(sHeader.equals("Content-Length")) 9Zry]$0~R { NN0$}ac p nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); Uoya3#4 G break; [ EFMu;q } D jk C } Uz cx6sw else 2%*MW"Q break; {oc igR0 } E$9Ys } t?o,RN: catch(IOException e){e.printStackTrace ();} b|Q)[ y] catch(Exception e){e.printStackTrace ();} 5D M"0 -9RDr\&`( MMB@.W Utility.log(nFileLength); mk7&<M O#wpbrJ ,B4VT 96* return nFileLength; {3})=>u:S } *k"|i*{ X[#zCM M8H5K //保存下载信息(文件指针位置) ^7;JC7qmN private void write_nPos() P%)gO { 5@*'2rO&!
try{ Hf'G8vW output = new DataOutputStream(new FileOutputStream(tmpFile)); D7Y)?Z5A; output.writeInt(nStartPos.length); .@
xF6UZ for(int i=0;i<nStartPos.length;i++) x^Yl*iq { gtUUsQ%y . // output.writeLong(nPos); i)#:qAtP* output.writeLong(fileSplitterFetch.nStartPos); m}>F<;hQ output.writeLong(fileSplitterFetch.nEndPos); k = ?h~n0M } 1qV@qz output.close(); A:(*y
2 } =%'`YbD$ catch(IOException e){e.printStackTrace ();} ZmOfEg|h\ catch(Exception e){e.printStackTrace ();} D\<y)kh } 8/)qTUx: Oj<S.fi ["\;kJ. //读取保存的下载信息(文件指针位置) +,~zWv1v private void read_nPos() 0]D0{6x8 { 8|E'>+ D_- try{ JS}{ %(B DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); XLMb=T~S int nCount = input.readInt(); *'ZB*> nStartPos = new long[nCount]; >~`C-K# nEndPos = new long[nCount]; s@MYc@k for(int i=0;i<nStartPos.length;i++) ==i[w| { XqM3<~$ nStartPos = input.readLong(); cYXM__ nEndPos = input.readLong(); /1?R?N2>0 } @HZKc\1 input.close(); cRX~z } lL]y~u catch(IOException e){e.printStackTrace ();} 4&/j|9=X catch(Exception e){e.printStackTrace ();} L[5=h } d #jK=:eK Z|RY2P>E Xf)|Pu private void processErrorCode(int nErrorCode) iH^z:%dP { -,K! System.err.println("Error Code : " + nErrorCode); q80S[au } ]*7Y~dO -W,}rcj*| (C]o,7cYS //停止文件下载 6_N(;6kx( public void siteStop() 1-RIN}CSd { wP"dZagpj bStop = true; Qr
Wj>uR for(int i=0;i<nStartPos.length;i++) K't]n{$ fileSplitterFetch.splitterStop(); bQ|V!mrN} 1s1=rZ! %e*@CbO$ } 5Sk W-+$ } 5>AX*]c //负责部分文件的抓取 T{wuj[Q#: **FileSplitterFetch.java \M'-O YH_[ */ )Ud-}* g package NetFox; L@JOGCYy h*ZC*eV> #07g d#j4 import java.io.*; :!zl^J; import java.net.*; &@ JvnO: d
GP*O RCRpzY+@ public class FileSplitterFetch extends Thread { tH'2gl YJ(*wByM tpuYiL String sURL; //File URL @29U@T long nStartPos; //File Snippet Start Position |d6T/Uxo long nEndPos; //File Snippet End Position :_M;E"9R int nThreadID; //Thread's ID d;n."+=[x boolean bDownOver = false; //Downing is over a~8[<F omj boolean bStop = false; //Stop identical wgd /(8d FileAccessI fileAccessI = null; //File Access interface Nan[< !'LW_@ {nU=%w"\ public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException {}:ToIp { $['Bv this.sURL = sURL; <T[E=# this.nStartPos = nStart; F[ewn/]n this.nEndPos = nEnd; NWxUn.Gy9 nThreadID = id; FZ8b7nJ)4m fileAccessI = new FileAccessI(sName,nStartPos);//定位 Y2'cs~~$Ce } ]~Y<o T6ENtp )?wJF<[_# public void run() ?k(\ApVHj { ws^4?O while(nStartPos < nEndPos && !bStop) sUE?v9 { @?"h
!fyu KN-avu_Ix mS0udHod try{ vOg#Dqn- URL url = new URL(sURL); ,]T2$?| HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 'w1YFdW httpConnection.setRequestProperty("User-Agent","NetFox"); E@Ad'_H String sProperty = "bytes="+nStartPos+"-"; .KdyJ6o httpConnection.setRequestProperty("RANGE",sProperty); s=[h?kB Utility.log(sProperty); ,!U=|c"k) &IlU|4`R% `Qeg InputStream input = httpConnection.getInputStream(); =N 5z@;! //logResponseHead(httpConnection);
1!>Jpi0 *-xU2 @O[5M2|r byte[] b = new byte[1024]; N]RZbzK_5G int nRead; =Fdg/X1 while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) @Vu(XG { ~H!S,"n^,P nStartPos += fileAccessI.write(b,0,nRead); "+unS)M;Y //if(nThreadID == 1) N<DGw?Rl // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); \(%Y%?dy } '? jlH0; )XWP\
h |.wEm;Bz Utility.log("Thread " + nThreadID + " is over!"); B 2ec@]uD` bDownOver = true; 36am-G //nPos = fileAccessI.write (b,0,nRead); MeUaTJFEB } ?mlNL/: catch(Exception e){e.printStackTrace ();} h>Hb`G< } -1J[n0O. } + T8B: uw2hMt (N D.mHIsX6\ //打印回应的头信息 /JT#^Y public void logResponseHead(HttpURLConnection con) a. z;t8 { /q5:p`4{J for(int i=1;;i++) gJM`[x`T { Y/7 $1k String header=con.getHeaderFieldKey(i); <mAhr if(header!=null) !fj(tPq //responseHeaders.put(header,httpConnection.getHeaderField(header)); ZI=v.wa Utility.log(header+" : "+con.getHeaderField(header)); <ZB1Vi9}8 else -I=l8m6L break; !>1@HH?I\/ } E4hLtc^
+ } y{N-+10z q&d~
\{J 6&/T@LQYrh public void splitterStop() RZ+`T+zL { p QizJ6 bStop = true; __.+s32SS$ } 4^URX>nx8 QVtQx>K` 9V5-%Iv } ooQQ-?"m NC38fiH_N 7.`fJf? /* db6mfxi **FileAccess.java 1/"WD?a *//文件访问(定位,写) rdJR 2 package NetFox; s-v import java.io.*; &?(?vDFfZ y99mC$"Ee` LGtIm7 public class FileAccessI implements Serializable{ Hhh0T>gi KRA/MQ^7~U //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 _F`lq_C RandomAccessFile oSavedFile; /bVoErf long nPos;
XcjRO#s\ 4#lo$# 9yfJVg public FileAccessI() throws IOException iTQD { B
$mX3B+a this("",0); K1T4cUo } O<V4HUW ^(FdXGs[ v;ZA4c public FileAccessI(String sName,long nPos) throws IOException rh^mJUh { |)*fRL, oSavedFile = new RandomAccessFile(sName,"rw"); q*9!,!e this.nPos = nPos; aca=yDs2 oSavedFile.seek(nPos); &Udb9 } a0#J9O_ (I./ Uu% }1upi=+aE public synchronized int write(byte[] b,int nStart,int nLen) 1aTB%F { :*KHx|Q int n = -1; L'kmNVvYN try{ P ! _rEV oSavedFile.write(b,nStart,nLen); ;&)-;l7M n = nLen; WILMH`
}
>=-(UA catch(IOException e) hr)B[<9 { aYSCw3C< e.printStackTrace (); t)}scf&^x } ;-qO'V:; @qYp>|AF [;J>bi;3N return n; @
rc{SB } %B.yW`,X %xyou:~0zs K9up:.{QQ } Qr{E[6 k-^mIJo} 5f 5f0|ok /* :w^Ed%>y7 **SiteInfoBean.java #e$5d>j( */ h[@tZ(jrY package NetFox; 73\JwOn~ &eX!#nQ_. |Ur"&
Z{ public class SiteInfoBean { {fjdr XY3v_5~/1F ZNvEW private String sSiteURL; //Site's URL u@cYw:-C private String sFilePath; //Saved File's Path #*UN >X private String sFileName; //Saved File's Name $[a8$VY^Cm private int nSplitter; //Count of Splited Downloading File 0a XPPnuX ]Yn_}Bq SR|`! public SiteInfoBean() @/ohg0 {//nSplitter的缺省值为5 P&^;656r //default value of nSplitter is 5
z\%67C this("","","",5); B e0ND2oo } _dhgAx-H)h #;2n;.a 8p:e##% public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) CmoE_8U> { v: OR sSiteURL= sURL; /^#;d
UB sFilePath = sPath; {C N~S*m sFileName = sName; 4?q<e*W this.nSplitter = nSpiltter; :x4|X8> wMg0> !`Hd-&}bYz } fy@<&U5rg %2{%Obp' |#cm`v public String getSSiteURL() =V-|#j { TI,&!E?; return sSiteURL; FwkuC09tI } HOJs[mqB% `3WFjU5a P"8~$ P# public void setSSiteURL(String value) kr9*,E9cv { %|q>pin2 sSiteURL = value; sl`s_$J } mQ|v26R %1xb,g KO (jRm[7H public String getSFilePath() ?En O"T. { :fZ}o|t7 return sFilePath; QLiu2U o } 8y.wSu
gf
&Pn B][U4WJ) public void setSFilePath(String value) #(N+((): { D"2&P^- sFilePath = value; BMG3|N^ } xg;+<iW YSic-6z0Ms lJ}_G>GJ public String getSFileName() DpvI[r//'* { L(|N[# return sFileName; 1q:2\d] } jZ~n[
f+Q 2q=AEv/ PGhY>$q>b public void setSFileName(String value) bB1UZ O { Vr`R>S,- sFileName = value; NflD/q/ L } \F/hMXDlJ x7!L{(E3 %\dz
m-d(C public int getNSplitter() <66X Xh. { 7e|s
wJ>4 return nSplitter; 0zlb0[ } |@
s,XS C.Kh[V\Ut i]YV { public void setNSplitter(int nCount) %,}A@H, { 8QLj[" nSplitter = nCount; pz\
+U7 } IoQEtA } z<U-#k7nz ORHp$Un~) ?mFv0_!O /* "4+&-ms **Utility.java "/3'XOK| */ @s ? package NetFox; l1OE!W W P2BWuhF bnq;)>& public class Utility { )NXmn95 K/j3a[. A@1W}8qY: public Utility() bLij7K2H { 7Bzq,2s pfA|I*`XV v&Yi } Ai=se2 Pq;U&, //线程睡眠 )wam8k5 public static void sleep(int nSecond) &:9cAIe]H { =.f-w0V try{ ;c-(ObSm Thread.sleep(nSecond); K6v6ynp/ } &C,'x4c" catch(Exception e) 7~^GA.92 { oTU!R , e.printStackTrace (); jnK WZ/R } y&q*maa[ } Fq~yL!#! ,Ys %:>? //日志 ZRh~`yy public static void log(String sMsg) 5[k/s}g { 8=B|C'> System.err.println(sMsg); M -cTRd-i } `w#Oih!6A| v5!d$Vctu 2&:f&" public static void log(int sMsg) h)ECf?r< { WejYy| System.err.println(sMsg); w28o}$b` } @=bLDTx;c) } Q('r<v96 ]qethaNy &S{RGXj_ /* xu/cq9 **TestMethod.java 1an^1! */ T! Y@`Ox package NetFox; R}
eN@#"D kO.%9wFbz =x%dNf$e{W public class TestMethod { 2h|MXI\g gp};D 8;b(0^ public TestMethod() m,*QP* { ///xx/weblogic60b2_win.exe 8'r2D+Vwm try{ }iXDa?6% SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); 3KRd //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); <r.)hT"0 SiteFileFetch fileFetch = new SiteFileFetch(bean); 6}gls}[0{e fileFetch.start(); 1L%CJ+Q#0i } 8##-EN;ag catch(Exception e){e.printStackTrace ();} 0Is,*Srr a]JYDq`,3 BWeA@v } [pC$+NX 3c#BKHNC %+@O#P public static void main(String[] args) ypbe!Y<i] { m!|kW{B#A new TestMethod(); 5L+>ewl } oRm L
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