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/* I.T?A9Z **SiteFileFetch.java ">eled)O */ Md~._@`|K package NetFox; YhfQpe import java.io.*; [{[m)Z^ import java.net.*; /`DKX } 37Q8Yf_ 2/uZ2N|S public class SiteFileFetch extends Thread { K9p<PLy+ -zqpjxU: \0_jmX]p SiteInfoBean siteInfoBean = null; //文件信息Bean Tcc83_Iq long[] nStartPos; //开始位置 BnGoB`n long[] nEndPos; //结束位置 ]vn*eqd FileSplitterFetch[] fileSplitterFetch; //子线程对象 SE6(3f$ long nFileLength; //文件长度 "Y&
boolean bFirst = true; //是否第一次取文件 /~f[># boolean bStop = false; //停止标志 lBs-u h File tmpFile; //文件下载的临时信息 X"r.*fb;N DataOutputStream output; //输出到文件的输出流 YZSQOLN{ Ldv,(ZV,< //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) <j,3Dn public SiteFileFetch(SiteInfoBean bean) throws IOException e.%I#rNI { &ni#( siteInfoBean = bean; WG,1%=M@ //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ^,AE;ZT7 tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); Q@>1z*'I if(tmpFile.exists ()) Iz. h { cg17e bFirst = false; d^!k{Qx' read_nPos(); ?~t5>PEonv } !k*B-@F else e!gNd>b { { _X;,,VEV! nStartPos = new long[bean.getNSplitter()]; Kl%[f jI) nEndPos = new long[bean.getNSplitter()]; wCR! bZ w } SOM? 0. T#E$sZ @fp@1n k3@d
=k }
<HN+pi JehanF[ ]Sa#g&}T> public void run() 8]`s&d@GY { GIc q|Pe //获得文件长度 zuW4gJ //分割文件 HR8YPU5
//实例FileSplitterFetch #0uu19+} //启动FileSplitterFetch线程 ,Ww}xmq1H //等待子线程返回 <PuY"-`/Oc try{ Q<;EQb# if(bFirst) 'PY; { ?QJx!'Y,p nFileLength = getFileSize(); gT$WG$^i if(nFileLength == -1) FK~wr;[ { rOt{bh6r System.err.println("File Length is not known!"); %7aJSuQN% } T&>65`L else if(nFileLength == -2) r"h09suZBW { Z$KyK.FUU System.err.println("File is not access!"); %N~c9B } )e`9U.C else A^X\ { ('C)S)98C for(int i=0;i<nStartPos.length;i++) rA B=H*|6 { wbKJ:eWgt nStartPos = (long)(i*(nFileLength/nStartPos.length)); [7gz?9VyLF } xW5 `.^5 for(int i=0;i<nEndPos.length-1;i++) [m
h>N$ { `^hA &/1 nEndPos = nStartPos[i+1]; :.XlAQR~b }
~,&8)1 nEndPos[nEndPos.length-1] = nFileLength; o4EY2 } S|k@D2k= } 9c k"JMla tugIOA -bOtF% //启动子线程 CkNR{?S fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; yx-"&K=` for(int i=0;i<nStartPos.length;i++) :LNZC,-f}5 { U2<q dknB
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), H+Bon=$cE! siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),
=5B5 nStartPos,nEndPos,i); [#Gu?L_W Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); @#t<!-8d fileSplitterFetch.start(); E=,5%>C0#% } .`+~mQ
Wn // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Sq_.RU siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); TsoxS/MI" // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", c|9g=DjK nEndPos = " + nFileLength); sGtxqnX:J // fileSplitterFetch[nPos.length-1].start(); <_|@~^u ?zutU w/m *v K~t|z //等待子线程结束 a B MV6' //int count = 0; S$fS|N3]% //是否结束while循环 jFe8s@7 boolean breakWhile = false; vvxD}p=y Lv/}&'\( u;rmqo1 while(!bStop) 5~DKx7P!Z { L3wj vq^ write_nPos(); ]oSx]R>{f Utility.sleep(500); YQd($ breakWhile = true; fcF| m5 C za}cF k`N*_/(|n for(int i=0;i<nStartPos.length;i++) ">1wPq& { M*3G if(!fileSplitterFetch.bDownOver) 8Y RT0/V { WR#h~N
9c breakWhile = false; 1<#D3CXK break;
gvo98Id } NR_3nt^h } GiuE\J9i if(breakWhile) urx?p^c break; O^-QqCZE gTTKjlI[ :'ZR!w //count++; 3-:^mRPJ //if(count>4) t/O^7)% // siteStop(); ?;P6#ByR } pn(i18x T>|
hID PP'5ANK System.err.println("文件下载结束!"); ,=Wj*S)~ } H'YK j' catch(Exception e){e.printStackTrace ();} %_Lz0L64k } z$%8' D60quEe3% Eb9h9sjv //获得文件长度 i{$P.i/& public long getFileSize() H9TeMY { ",gVo\^ int nFileLength = -1; Z9 ws{8@_ try{ w)vpo/? URL url = new URL(siteInfoBean.getSSiteURL()); vmkiw1 HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); DU"Gz!X]Jd httpConnection.setRequestProperty("User-Agent","NetFox"); U
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xw]x ^J7q,tvbJ int responseCode=httpConnection.getResponseCode(); ['\R4H!x if(responseCode>=400) <BBzv-?D { +0ukLc@ processErrorCode(responseCode); .{8[o[w
= return -2; //-2 represent access is error Pz2Q]}(w } ~gZ1*8 s` ]JGq{I>%+6 jsgDJ} String sHeader; ~s'}_5;VY aDX&j2/ cyWb*Wv for(int i=1;;i++) GR*sk#{ { Hc\@{17 //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); [|*7"Q( //Utility.log(in.readLine()); u?SwGXi~8 sHeader=httpConnection.getHeaderFieldKey(i); zJ8T.+qJ if(sHeader!=null) dT 7fyn { ~1*37 w~ if(sHeader.equals("Content-Length")) |*zgX]-+; { #M w70@6 nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); r]\[G6mE% break; JiXE {( } Fng } -WyB2$!( else Y+23 jlgb break; ;2g.X(Ra } sXPva@8_ } >ZPu$=[W catch(IOException e){e.printStackTrace ();} [Nm?qY catch(Exception e){e.printStackTrace ();} r 56~s5A kkHK~(>G [vb#W!M&| Utility.log(nFileLength); y7#+VF`xf k3B_M9>!
OzC%6;6h return nFileLength; 85|u;Fxf } b}Im>n! 1qn/*9W}= X.#9[3U+ //保存下载信息(文件指针位置) _/P;`@ private void write_nPos() F)eP55C6 { =m (u=|N3 try{ rBL2A output = new DataOutputStream(new FileOutputStream(tmpFile)); kP('X/ output.writeInt(nStartPos.length); tuwlsBV for(int i=0;i<nStartPos.length;i++) `:r-&QdU o { &DYC3*)Jih // output.writeLong(nPos); '*`n"cC: output.writeLong(fileSplitterFetch.nStartPos); pl,XS6mB output.writeLong(fileSplitterFetch.nEndPos); j&S.k } @Q ~;@M output.close(); yG~Vvpv } 7W4m&+ catch(IOException e){e.printStackTrace ();} $;ny`^8 catch(Exception e){e.printStackTrace ();} |p*cI @ } {*hGe_^ {y@8E>y5$ _hJ+8B^` //读取保存的下载信息(文件指针位置) OC,yL Q private void read_nPos() 94
6r#`q { e"sv_$* try{ 6A>bm{`c: DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); vOKNBR2 int nCount = input.readInt(); uInI{> nStartPos = new long[nCount]; (?,jnnub nEndPos = new long[nCount]; A\7sP = for(int i=0;i<nStartPos.length;i++) _f>)G3p { .@;5" nStartPos = input.readLong(); d?YSVmG nEndPos = input.readLong(); sLTQm*jL } dQp>z%L) input.close(); vzSjfv } >^#Liwm catch(IOException e){e.printStackTrace ();} YT[=o}jS catch(Exception e){e.printStackTrace ();} ^o q|^O } L?8OWLjRy DTi^* Wj vYLspZ;S private void processErrorCode(int nErrorCode) ?AxB0d9z { 9'|k@i: System.err.println("Error Code : " + nErrorCode); *&_A4) } l&W:t9o 9w&CHg7D
i dW5r]D[Cx //停止文件下载 u0? TMy.% public void siteStop() >N`,
3;Z { 0%\fm W j bStop = true; "[z/\l8O for(int i=0;i<nStartPos.length;i++) 5?(dI9A"K fileSplitterFetch.splitterStop(); v=dN$B5y3 q:jv9eL.O I)*J,hs1 } =:R${F } 6b` Jq>v //负责部分文件的抓取 6+s&%io4 **FileSplitterFetch.java ++8 Xi1 */ r}|)oG,= package NetFox; 'f %oL/, 7uv"# mq Pq-@waH3 import java.io.*; oz3!%' import java.net.*; l%
%c U" 7:$dl# Ew{N2 public class FileSplitterFetch extends Thread { trLxg H_Y }VH2G94Ll w+\RSqz/ String sURL; //File URL ;U tEHvE* long nStartPos; //File Snippet Start Position v=uQ8_0~N long nEndPos; //File Snippet End Position X^m@*,[s int nThreadID; //Thread's ID _m#TL60m boolean bDownOver = false; //Downing is over L5&,sJz boolean bStop = false; //Stop identical ">fRM=fl FileAccessI fileAccessI = null; //File Access interface chuJj
IY @ K2N cb7 /<O9^hA| public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException !#olG}#[ { !+UXu]kA this.sURL = sURL; eIPk$j{e this.nStartPos = nStart; xAn|OSe this.nEndPos = nEnd; ~7\`qH nThreadID = id; )kKeA fileAccessI = new FileAccessI(sName,nStartPos);//定位 &Dp& } 9]{Ss$W3x OWYY2&.h dj 6Lf public void run() 4h}\Kl { IL*MB;0> while(nStartPos < nEndPos && !bStop) J04R,B { 4dSAGLpp 6,R<8a;Wn >Ij#+= try{ `"iPJw14 URL url = new URL(sURL); qX[C% HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); +$^[r httpConnection.setRequestProperty("User-Agent","NetFox"); jM'Fb.>~ String sProperty = "bytes="+nStartPos+"-"; D2:ShyYAS httpConnection.setRequestProperty("RANGE",sProperty); %a-fxV[ Utility.log(sProperty); r"5\\ qf5* RC/&dB 4 T/ ~erc InputStream input = httpConnection.getInputStream(); yN#]Q}4 //logResponseHead(httpConnection); AZJ|.mV q ]InDcE ,zBc-Cm byte[] b = new byte[1024]; d _=44( - int nRead; c8cGIAOY) while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) UyNP:q: { (i@(ZG]/ nStartPos += fileAccessI.write(b,0,nRead); t$Ua&w //if(nThreadID == 1) Hu!<GB~ // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); B=%YD"FAv } N,cj[6;T% _9/Af1X <g8{LG0 Utility.log("Thread " + nThreadID + " is over!"); <S@2%%W bDownOver = true; ;/^O7KM- //nPos = fileAccessI.write (b,0,nRead); t{ridA} } !6s]p%{V catch(Exception e){e.printStackTrace ();} # kmI#W"^ } /q`f3OV" } DEzL] 1;P fvDcE]_%H BUsAEwM //打印回应的头信息 J \I`# public void logResponseHead(HttpURLConnection con) 8O*O5 { 6
)Qe*S for(int i=1;;i++) Ti5"a<R4m6 { 3SOrM String header=con.getHeaderFieldKey(i); x C>>K6Nb if(header!=null) 00A2[gO9 //responseHeaders.put(header,httpConnection.getHeaderField(header)); vmtmiN8;d Utility.log(header+" : "+con.getHeaderField(header)); bgmOX&`G else |Gb~[6u break; w:9n/[ } ^`(3X } X*:)]p(R c5HW.3" LS1}j WU! public void splitterStop() ?vP}#N!=d { e(-Vp7vXG bStop = true; \88IFE } @,q<][q P-\T BS_O }/.b@`Dh; } Y{m1\s/ o rP&.`m88n Z9PG7h /* `ve5>aw0_Y **FileAccess.java 4*+)D8 *//文件访问(定位,写) T(eNK
c2 package NetFox; }nNCgH import java.io.*; r6`KZ TU ,tOc+3Qz$ cz*Z/5XH public class FileAccessI implements Serializable{ xV5eKV @1 )][r-7 //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 :U#4H;kk~j RandomAccessFile oSavedFile; 0o&7l%Y/ long nPos;
0GiL(e| @X0$X+]E*8 rIF6^? public FileAccessI() throws IOException *ps")?tlC { 6rzXM`cs this("",0); 9m_Hm')VG } c
]&|.~2 & c5tCw3$t Y-:{a1/RKo public FileAccessI(String sName,long nPos) throws IOException X9n},}bJ" { cH\.-5NQ oSavedFile = new RandomAccessFile(sName,"rw"); L[ 7Aa"R this.nPos = nPos; u+vUv~4A6 oSavedFile.seek(nPos); IqmoWn3 } 0N*~"j;r#M Yf,U2A\ Y+#VzIZw public synchronized int write(byte[] b,int nStart,int nLen) _n_|skG { .
[\S=K|/ int n = -1; GbZqLZ0 try{ pWXoJ0N oSavedFile.write(b,nStart,nLen); aUX.4#|% n = nLen; FOd)zU*L2 } =P<7tsSuoK catch(IOException e)
BDT1qiC { |Orp:e! e.printStackTrace (); [CJr8Qn } 41jx+
0\Z (Puag* RI
jz7ZG return n; -XtDGNHF } h48
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^iaG>rvA qY$/i# } G4eY}3F7,4 &'-ze,k} t#6@~49 /* D^9r#& **SiteInfoBean.java Y5Jrkr)k */ -*Z;EA- package NetFox; ht%:e?@i %JC-%TRWK %$L!N-U6 public class SiteInfoBean { d@-bt s&3 xA>O4SD h*9s^`9) private String sSiteURL; //Site's URL H"A|Z6y$^ private String sFilePath; //Saved File's Path ?4,e?S6,[ private String sFileName; //Saved File's Name ZkZTCb`/l private int nSplitter; //Count of Splited Downloading File UFy"hJchO eE/E#W8 }<hyW9 public SiteInfoBean() (},TZ+u {//nSplitter的缺省值为5 X!%CYmIRb //default value of nSplitter is 5 4:p+C-gs this("","","",5); |+Fko8- } w8df-]r L^zF@n^5A w(KB=lA2 public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) WS?"OTH.^\ { Hjm sSiteURL= sURL; MxO0# sFilePath = sPath; E/</ sFileName = sName; VMZ"i1rP this.nSplitter = nSpiltter; m:,S1V_jl t
Tky S~mpXH@ } )ieT/0nt W7QcDR y6 2Po e-= public String getSSiteURL() "
E
U[Lb { 8f37o/L return sSiteURL; |lOH
P A } ?UlAwxn :NJ(QkTZv xM3T7PV9 public void setSSiteURL(String value) 3~7X2}qU { 7]w]i5 sSiteURL = value; QVVR_1Q } 2O^7zW 6WEYg Qyr^\a;k' public String getSFilePath() ersddb^J] { Rs<li\GS return sFilePath; o0Y
{k8 } m4.IaBn/ kCWaji_x% kCO`JAH# public void setSFilePath(String value) !vB8Pk" { n.{Ud\| sFilePath = value; mBC?Pg } SW
^F G G]4g)O5 k/&~8l.$ public String getSFileName() -c"nx$ { %B&y^mZv*\ return sFileName; [nO\Q3c|@$ } o+o'!) A3VXh^y+ kDAPT_Gid public void setSFileName(String value) c 5&
_'& { tp-PE? sFileName = value; ~9Nn8g6 } gi|j! m 06FBI?;|= aB6F<"L, public int getNSplitter() >8$]g { hP1H/=~ return nSplitter; x4&<Vr } =@F1J7 ?=X G#we XN@F6Gj public void setNSplitter(int nCount) bi y1!r { $n30[P@p; nSplitter = nCount; 3_:J`xX(4 } D\}A{I92F4 } TmZ%
;TN &R\t<X9 n a9h K8e /* Sl,\<a **Utility.java @j/UDM */ :`~;~gW< package NetFox; k?%?EsR Bg"KNg 2UPqn#.3 public class Utility { 7q2G/_ =i_
s#v[Y 3dlL?+Y# public Utility() }IM *Vsk { \t6k(5J ]m _<lRye ,P&.qg i=( } 5 *8V4ca owz6j: //线程睡眠 z?NMQ8l|:6 public static void sleep(int nSecond) 9A@/5Z:v5W { 8U98`#
i try{ yMdE[/+3 Thread.sleep(nSecond); R4 8w\?L } >}& :y{z~ catch(Exception e) VI{!ZD] { 'jr\F2 e.printStackTrace (); 'G6g
yO/K } I\%a< } S?ypka"L '&XL|_Iq //日志 w}wABO public static void log(String sMsg) Y8c#"vm( { CK<Wba System.err.println(sMsg); =0Z^q0. } `QpkD8 pX5#!) %XX(x'^4 public static void log(int sMsg) ~N<zv({lG { T d E.e( System.err.println(sMsg); gj(|#n5C } Fx6c*KNX3
} =l7@YCj5c - '<K_e; I?2S{]!? /* cPFs K*w **TestMethod.java fl8~*\;Xu */ M0+xl+c+ package NetFox; 4 f)B@A- P!c.!8C$ ]LcCom:] public class TestMethod { 4=BIYC"Lu WOw( - )Z.v fc public TestMethod() 3sh}( { ///xx/weblogic60b2_win.exe 4^3}+cJ7j try{ d:j65yu SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); : eL{&& |