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/* _.GHtu/I **SiteFileFetch.java d`xDv$QZ */ )5<c8lzp package NetFox; GS,}]c= import java.io.*; kybDw{(}gc import java.net.*; 7!g4 `@!5M Tu=~iQ 5Kkp1K$M public class SiteFileFetch extends Thread { Y-v6M3$ NHD`c)Q ^Zq3K SiteInfoBean siteInfoBean = null; //文件信息Bean E#yG}UWe long[] nStartPos; //开始位置 pE]s>Ta long[] nEndPos; //结束位置 Gr|102 FileSplitterFetch[] fileSplitterFetch; //子线程对象 Uclta long nFileLength; //文件长度 d?jzh1 boolean bFirst = true; //是否第一次取文件 u:}yE^8 @ boolean bStop = false; //停止标志 Nj}-"R\u File tmpFile; //文件下载的临时信息 >'{'v[qR[G DataOutputStream output; //输出到文件的输出流 g-2(W jY$3 //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) 10..<v7 public SiteFileFetch(SiteInfoBean bean) throws IOException ~J1UzUxX2 { +{&++^(}a siteInfoBean = bean; tzG.)Uqs //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); F t;[>o tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); }b]z+4Ua( if(tmpFile.exists ()) <w0$0ku { 0'II6,: bFirst = false; Si=u=FI1e read_nPos(); i/q1> } x4/f5 else @HP7$U" { e-YMFJtoK} nStartPos = new long[bean.getNSplitter()]; 0`kaT
?> nEndPos = new long[bean.getNSplitter()]; z5IdYF? } =U3rOYbP; $w
,^q+ ~d&W;mef- <iznB8@ } Aw7_diK^ oGqbk x G>j4b}e public void run() PG'+vl { f
_*F&-L //获得文件长度 )\fLS d //分割文件 = ^_4u%} //实例FileSplitterFetch |eFce/ //启动FileSplitterFetch线程 "1>48Z-UC //等待子线程返回 Tj,1]_`=V$ try{ nY 50dFA, if(bFirst) 4Y4QR[>IU3 { x10u?@ nFileLength = getFileSize(); [BKX$A:Y if(nFileLength == -1) q;=! =aRg { 3YJa3fflK System.err.println("File Length is not known!"); NVq3h\[X } geSH3I
else if(nFileLength == -2) ynU20g { h5VZ-v_j System.err.println("File is not access!"); s|o+
Im } 3.<E{E!F else xHi.N*~D { f,'9Bj.~ for(int i=0;i<nStartPos.length;i++) 31k2X81;a { y#)ad\ nStartPos = (long)(i*(nFileLength/nStartPos.length)); oS Apa } pF}WMt for(int i=0;i<nEndPos.length-1;i++) ><3!J+<? { KkD&|&!Q7u nEndPos = nStartPos[i+1]; 9 Aq\1QC } rM{V>s:N nEndPos[nEndPos.length-1] = nFileLength; < r7s,][& } We?cRb } z"j]m_mH GLE"[!s]f xmBGZ4f% //启动子线程 \9`76*X6
c fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; ^QTtCt^: for(int i=0;i<nStartPos.length;i++) Va3/#is' { uo[W|Q fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), #f-pkeaeq siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), dxK3462 nStartPos,nEndPos,i); 5><KTya?= Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 8q_"aa,` fileSplitterFetch.start(); )H|cri~D } O6Mxp- // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), G"D=ozr siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); u;3wg`e // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", =@y
?Np^A nEndPos = " + nFileLength); %8$ldNhV // fileSplitterFetch[nPos.length-1].start(); |cIv&\ x cPbAR' =Cg1I\ //等待子线程结束 lXOT>$qR< //int count = 0; nC(<eL //是否结束while循环 83g$k
9lG. boolean breakWhile = false; f S-PM3 J`xCd/G t5;)<N` while(!bStop) <tT.m[q g { i$JN
s)I% write_nPos(); g`r4f%O Utility.sleep(500); N977F$Bo breakWhile = true; 5Vj O:> 8~ wP? v$~$_K for(int i=0;i<nStartPos.length;i++) t+Au6/Dx? { vtF|:*h if(!fileSplitterFetch.bDownOver) )];Bo.QA { am+w<NJ(us breakWhile = false; $(+#$F<eo+ break; 9>9, } /X;/}fk } O
b'Br if(breakWhile) PWk\#dJN& break; zyP9
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f \-8S" //count++; s`gfz}/ //if(count>4) SW)jDy // siteStop(); "/nbcQ*s*E } i "d&U7Q r1[c+Hy <S3s==Cg System.err.println("文件下载结束!"); K$I`&M( } (\UpJlW catch(Exception e){e.printStackTrace ();} 6u>]-K5 } aM+Am,n`@ :}z`4S@b PUmgcMt //获得文件长度 1YNw= public long getFileSize() lokKjs { mgMa)yc!dp int nFileLength = -1; 6bN8}\5 try{ 3JEg3|M( URL url = new URL(siteInfoBean.getSSiteURL()); \,ne7G21j HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 54].p7 httpConnection.setRequestProperty("User-Agent","NetFox"); ]=ADX} CaC \\5wl S)?N6sz% int responseCode=httpConnection.getResponseCode(); ?|~KF:,#} if(responseCode>=400) G=]ox*BY { 1,P\dGmu processErrorCode(responseCode); .N7<bt@~) return -2; //-2 represent access is error c
h}wXn } @C%6Wo4l3 [bw1!X3 !yd]~t
5Q String sHeader; $[Q;{Q "
sC]z} hpgOsF9Lh for(int i=1;;i++) yi:}UlO { "j&'R#$&d //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); $6(a6! //Utility.log(in.readLine()); ex
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*] sHeader=httpConnection.getHeaderFieldKey(i); zdw*
?C if(sHeader!=null) XOLE=zdSp { ,Js-'vX if(sHeader.equals("Content-Length")) hw.>HT|.N { |]9L# nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); ~sZ$`t break; c/igw+L() } S}a]Bt } k>\v]&|T` else JEaTDV_ break; I$MlIz$l v } Eh)VT{vp } ``eam8Az_U catch(IOException e){e.printStackTrace ();} z1]nC]2 catch(Exception e){e.printStackTrace ();} <MX Oet+$ b KyyVO" Utility.log(nFileLength); <_ENC>NP TEh.?
G |[{\ return nFileLength; uT'l.*W6i } iEZ+Znon C<3<,~gI lx=tOfj8 //保存下载信息(文件指针位置) R :(-"GW' private void write_nPos() ,wM4X']HR { El@*Fo try{ ;g? |y(xv output = new DataOutputStream(new FileOutputStream(tmpFile)); jw9v&/- output.writeInt(nStartPos.length); EEnl' for(int i=0;i<nStartPos.length;i++) K,I { hxK;f // output.writeLong(nPos); 3fp&iz output.writeLong(fileSplitterFetch.nStartPos); ~bCA8 output.writeLong(fileSplitterFetch.nEndPos); vsZ?cd } BV`\6SM~ output.close(); D[ #V } IhBc/.&RL catch(IOException e){e.printStackTrace ();} o.Rv<a5.L catch(Exception e){e.printStackTrace ();} YcX\t6VK } (y 7X1Qc) *<!q@r<d )0iN2L]U; //读取保存的下载信息(文件指针位置) e1LIk1`p private void read_nPos() BjsT 9?6W/ { Hj|&P/jY]* try{ *dw.Ug DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); <y] 67:"<v int nCount = input.readInt(); kI)}7e nStartPos = new long[nCount]; uT4|43<
G nEndPos = new long[nCount]; `vgaX,F* for(int i=0;i<nStartPos.length;i++) %ACW"2#( { Bskp&NV': nStartPos = input.readLong(); - ~|Gwr" nEndPos = input.readLong(); t+iHsCG)> } w+R7NFq input.close(); *k}m?;esb } kuy?n-1g catch(IOException e){e.printStackTrace ();} w CB*v<* catch(Exception e){e.printStackTrace ();} lQHF=Jex } Vv}R
S@4U !T][c~l hc[ K
VLpS private void processErrorCode(int nErrorCode) /oHCV0!0
{ JEp)8{.bW8 System.err.println("Error Code : " + nErrorCode); ;na%*G` } 2CO/K_Q $TXxhd 6 MhD' //停止文件下载 GDL/5m# public void siteStop() 5'I+%66?h$ { hr
fF1
>A bStop = true; su1lv# for(int i=0;i<nStartPos.length;i++) );7
d_# fileSplitterFetch.splitterStop(); B#Ybdp ; B2ln8NF#Q Yt]`>C[|D } Q+T#J9Y } 7 H //负责部分文件的抓取 M?eP1v:<+G **FileSplitterFetch.java 112WryS */ "/aZ*mkjfJ package NetFox; '"
"v7 O8@65URKx $72eHdy/yl import java.io.*; bE
!SW2:M import java.net.*; #:gd9os : Cdz&'en^ @(sz " public class FileSplitterFetch extends Thread { G&g;ROgY gu(:'5cX j#5a&Z String sURL; //File URL L1SKOM$ long nStartPos; //File Snippet Start Position ?% 24M\ long nEndPos; //File Snippet End Position >zW2w2O3 int nThreadID; //Thread's ID D$}8GYq boolean bDownOver = false; //Downing is over k4K.
mlIO boolean bStop = false; //Stop identical ?}cmES kX@ FileAccessI fileAccessI = null; //File Access interface Vke<; k- F}_b7|^ @Z~YFnEJi public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException +#FqC/`l { 5~[7|Y this.sURL = sURL; '? 5- this.nStartPos = nStart; .uJ
J< this.nEndPos = nEnd; w.?4}'DK nThreadID = id; 6nW)2LV fileAccessI = new FileAccessI(sName,nStartPos);//定位 X9m^i2tk } Fc5.?X- >3uNh:|>/ N#T'}>t y public void run() O
k`}\NZL { s:3[#&PQpN while(nStartPos < nEndPos && !bStop) 4Hj)Av<O( { TJ"-cWpO1 %F 2h C
x hC\
l
\y try{ {<,%_pJR URL url = new URL(sURL); r:g\ HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); #f2Ot<#- httpConnection.setRequestProperty("User-Agent","NetFox"); L
kK
*. String sProperty = "bytes="+nStartPos+"-"; MGR:IOTa httpConnection.setRequestProperty("RANGE",sProperty); vE:*{G;Y Utility.log(sProperty); kB
8^v7o &: Q'X f{P1.?a InputStream input = httpConnection.getInputStream(); W8d-4')| //logResponseHead(httpConnection); <fUo@]Lv
i>Q!5 h=#w< @ byte[] b = new byte[1024]; TR DQ+Z int nRead; |MwV4^ while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) lz,M$HG<[ { TjUwe@&Rw nStartPos += fileAccessI.write(b,0,nRead); oYqHl1cs //if(nThreadID == 1) =1IK"BA2? // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); *ub2dH4/ } m;@q('O E8PDIjp %(YQ)=w Utility.log("Thread " + nThreadID + " is over!"); )2[)11J9t bDownOver = true; h&0zR#t //nPos = fileAccessI.write (b,0,nRead); PgkU~68` } xp^RAVXq` catch(Exception e){e.printStackTrace ();} e5'I W__ } r:H]`Uo'r } G2`z?);1b ( /]'e} y!FO //打印回应的头信息 FLi'}C public void logResponseHead(HttpURLConnection con) :G _ { y]h0c<NP for(int i=1;;i++) o[ 5dR< { 1VJ${\H] String header=con.getHeaderFieldKey(i); RAW;ze*" if(header!=null) ER"69zQg|2 //responseHeaders.put(header,httpConnection.getHeaderField(header)); Z
[!"x&H]h Utility.log(header+" : "+con.getHeaderField(header)); T fLqxioqZ else [IYVrT&C' break; V^_A{\GK } NqD]p{>Y } `ASDUgx Mq UoT`/. Btm,'kBG public void splitterStop() ^')8-aF
. { 2) X#&IE bStop = true; <%)vl P#@ } U6.aoqb% Ta?J;&<u]/ 26j<>>2 } tguB@,O pD{OB .QvD603%5 /* "^]gI Qc **FileAccess.java ]_s3<&R *//文件访问(定位,写) SXL3>-Z E package NetFox; 2-4N)q import java.io.*; 4(Lmjue]? wps/{h, u&zY>'}zm public class FileAccessI implements Serializable{ CNNqS^ct Tz,-~ mc //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 Cut~k"lv RandomAccessFile oSavedFile; zx#Gm=H4 long nPos; _(m72o0g>> !5*VBE\ qTuR[( public FileAccessI() throws IOException kvbZx{s { :;%Jm this("",0); PxKBcx4o` } +<bj}" un "I Q>1BOH1by public FileAccessI(String sName,long nPos) throws IOException 45yP {+/-Q { ;$D,w oSavedFile = new RandomAccessFile(sName,"rw"); WDc[+Xyw this.nPos = nPos; '{d_q6,% oSavedFile.seek(nPos); *V&M5 } s$fM,l:! +g1>h,K 3 ZKi&f,:
public synchronized int write(byte[] b,int nStart,int nLen) O,%UNjx9K { T}Tv}~!f int n = -1; dk&F?B{6T try{ S
m(*<H oSavedFile.write(b,nStart,nLen); G$C2?|V)= n = nLen; J jAxNviG } ?_ H9>/:. catch(IOException e) e:G~P
u` { 24wDnDyh e.printStackTrace (); <#0i*PM_ } vQ<
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Sa@ return n; h8V*$ } vP{i+s18B 1Ek3^TOv7 _9BL7W $; } 3,p!Fun:r W ^<AUT ;f%@s1u /* -VohU-6 | **SiteInfoBean.java S257+ K9 */ YKe&Ph. package NetFox; +?\JQ| )WvKRp r NDRDP D public class SiteInfoBean { 9d1km~ jr6 0;oK+ 2P:X_:`~[ private String sSiteURL; //Site's URL >33=0< private String sFilePath; //Saved File's Path ]]p\1G private String sFileName; //Saved File's Name ij]UAJ}t private int nSplitter; //Count of Splited Downloading File Lv+{@) 1(;{w+nM mc]+j,d public SiteInfoBean() RZW=z}T+H {//nSplitter的缺省值为5 1e\cJ{B //default value of nSplitter is 5 NLZ5 5yo$ this("","","",5); {^oohW - } :uYZ1O gb,ZN^3<- o?ug`m" public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) J *LPv9) { :[@rA;L sSiteURL= sURL; j+3\I> sFilePath = sPath; !WXV1S sFileName = sName; aH;AGbp this.nSplitter = nSpiltter; .7.1JT#@A7 A^}# SB%D%Zx6'% } /BgXY}JC. nHRsr x OK4r) public String getSSiteURL() *Y85evq { 38sLyoG=i return sSiteURL; FW[|Zq;} } .?:#<=1 +8<$vzB "PMJh 3q public void setSSiteURL(String value) 'LoWp} f9 { $j,$O>V sSiteURL = value; $mK;{9Z
} j f4<LmR >}wFePl ~> )>hy) public String getSFilePath() h,y_^cf { C'@I!m._i return sFilePath; -pJ\_u/&%` } io\t>_ :UT\L2 q= n-K/dI public void setSFilePath(String value) v,opyTwG| { nt"\FZ*;3 sFilePath = value; xVsI#`<a } PkFG0 oM1C/=8
w3i74C&0 public String getSFileName() Iep_,o.Sk { ?6"U('y>n return sFileName; 'hu'}F{ } 7
2i&-`&4 [.Fm-$M- ){mqo%{SO public void setSFileName(String value) {li
Q&AZ { N MkOx$ sFileName = value; i<$?rB!i<1 } W)Mz1v #s s/t,6-~EH )Ko~6.:5H public int getNSplitter() h:7\S\|8 { <8~c7kT' return nSplitter; 1Z?uT[kR } S
-,$ ( IRR b^Q6 uEhPO public void setNSplitter(int nCount) >B``+Z^2 { t%,:L.?J# nSplitter = nCount; D'%M#S0 } 45BpZ~- } 5{ !"} &*8.%qe; j"Ew)6j /* `c^">L **Utility.java 6*EIhIQ( */ W@zxGH$z> package NetFox; O9<oq 6uUzky Mcz;`h|EW public class Utility { Rxr?T- GBBp1i
Z6- public Utility() ?
47"$=G { cM,g,E} 'ahZ*@kr fGA#0/_` } <eS+3, A|4
3W= //线程睡眠 Z<=L public static void sleep(int nSecond) *2.h*y'u { p1.3)=T try{ Gf+X<a Thread.sleep(nSecond); LOG>x! } ?I+$KjE+ catch(Exception e) * RX^ z6 { ^U*1_|Jh e.printStackTrace ();
$tc1te } p/l">d]+ } L&=r-\.ev F|'u0JQ)$ //日志 q<^MC/] public static void log(String sMsg) Chad}zU` { 4MzPm~Ct System.err.println(sMsg); 8}AWU } zN)) .a ,_<|e\>~ C CLc,r>) public static void log(int sMsg) " j_cI-@6 { .kkhW8: System.err.println(sMsg); 1*6xFn } '.gi@Sr5 } `PI*\t0 CY*GCkH @CxgoX^ /* H4T~Kv **TestMethod.java 8<ev5af */ Bva2f:)K| package NetFox; D#`>p zMO#CZ t R[*n3
wB public class TestMethod { L(k`1E f<|*^+ 9x8Vsd public TestMethod() |QR9#Iv { ///xx/weblogic60b2_win.exe a({N}ZDo try{ ,!PV0(F( SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); -II03 S1 //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); hM>.xr SiteFileFetch fileFetch = new SiteFileFetch(bean); Br{(sL0e fileFetch.start(); =FiO{Aw`N } {9Ok^O catch(Exception e){e.printStackTrace ();} k{hNv|:, V,8Z!.MG .yD
6$!6 } \}Iq-Je Fq
oh!F tTubW=H public static void main(String[] args) ^-|~c`&}B { %XZhSmlf new TestMethod(); pp7
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