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/* uSH.c> **SiteFileFetch.java 8^2Q ~{i */ 'z@(,5 package NetFox; ?EdF&^[3rD import java.io.*; JPRl/P$ import java.net.*; @hp@*$#& 9 HI55):Eb
EP*"=_ public class SiteFileFetch extends Thread { 7D<M\l8G JpN+'/ 4~DoqT SiteInfoBean siteInfoBean = null; //文件信息Bean N|wI=To long[] nStartPos; //开始位置 %kUIIHV} long[] nEndPos; //结束位置 }k$2r3 FileSplitterFetch[] fileSplitterFetch; //子线程对象 =*fOej>G long nFileLength; //文件长度 V|Smk;G boolean bFirst = true; //是否第一次取文件 |-bAzt boolean bStop = false; //停止标志 "??$yMW File tmpFile; //文件下载的临时信息 46sV\In>? DataOutputStream output; //输出到文件的输出流 rF'q\tJDz 3nMXfh/ //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) w!7Hl9BW public SiteFileFetch(SiteInfoBean bean) throws IOException ZJ1% { ry0P\wY} siteInfoBean = bean; !IF#L0z //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); p xjb^GZ0 tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); 7xqTTN6h if(tmpFile.exists ()) a%cCR=s= { =XuBan3B> bFirst = false; !;>j(xc read_nPos(); Y<odXFIS } M, f6UYo= else @-)jU! { 4@-
'p nStartPos = new long[bean.getNSplitter()]; 0@k)Cz[0; nEndPos = new long[bean.getNSplitter()]; :@mb.'%*! } cyL"?vR*< R^4JM,v9x` }Ndknut,
xj\!Sn2 } Tc$Jvy-G4A @p~f*b4H? R1)v;^B|) public void run() :+06M@ { A&XI1. j6 //获得文件长度 `ZhDoLpH< //分割文件 'GcN9D //实例FileSplitterFetch 6B'd]Fe //启动FileSplitterFetch线程 [,JUC< //等待子线程返回 VXX7Y?! try{ DvhJkdLB> if(bFirst) Pv@Lx+k { 1ayL*tr nFileLength = getFileSize(); L;6L@D6 if(nFileLength == -1) G&,F-|` { "k&QS@l System.err.println("File Length is not known!"); xY v@ } YBF|0A{[Y else if(nFileLength == -2) 4Qwv:4La { r2"B" %; System.err.println("File is not access!"); EbXWCD } t*KgCk 1 else G*` Y~SJp { a*/%EP3 for(int i=0;i<nStartPos.length;i++) 2"~|k_ { 4;_aFn nStartPos = (long)(i*(nFileLength/nStartPos.length)); vf^`' } xO3-I@ for(int i=0;i<nEndPos.length-1;i++) f_'#wc6 { $^~dqmE2, nEndPos = nStartPos[i+1]; _!_%Afz } apmZ&Ab nEndPos[nEndPos.length-1] = nFileLength; +9yV'd>U } v@n0ma= } d>k)aIYp !'#Y-"=ypk [ 'aSPA //启动子线程 o>~xrV`E fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; m}`!FaB # for(int i=0;i<nStartPos.length;i++) nz+k , { nymro[@O~ fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), N#C,q&; siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), 'qoDFR\v nStartPos,nEndPos,i); 4+?d0 Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); 8p"R4 fileSplitterFetch.start(); @?bO@ } s&.VU|=VQ@ // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), a\_?zi]s&, siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); *UxN~?N| // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", E)ne
z nEndPos = " + nFileLength); N./l\NtZ // fileSplitterFetch[nPos.length-1].start(); :^bjn3b a]NH >d Ga,+ //等待子线程结束 2d:IYCl4q //int count = 0; V
d`}F0WD //是否结束while循环 J2Y
S+%K boolean breakWhile = false; 4rDaJd>, ku*H*o~ 'j&+Pg)@ while(!bStop) ^(79SOZC { V)q|U6R write_nPos(); ip)gI&kN`z Utility.sleep(500); D^dos`L0b breakWhile = true; #cGn5c} S29k IJ g._`"c for(int i=0;i<nStartPos.length;i++) &[#iM0;)W0 { lD+f{GR if(!fileSplitterFetch.bDownOver) ]'q"Kw/10 {
Fm-D>PR breakWhile = false; p#A{.6Pa: break; OUM^u* } MqKf'6z } D2N<a= # if(breakWhile) 'cgB$:T}., break; YZ\a#s,0 4;;K1< 1 P[q 'Y^\ //count++; N$I@]PL //if(count>4) BK*Bw,KQ< // siteStop(); .G/>X%X } VV'*3/I vr2cDk{ mu$0x) System.err.println("文件下载结束!"); =]F;{x } D:Rr|m0Tk catch(Exception e){e.printStackTrace ();} Z) qts= } 9jkaEn>m^ =sFLzAu8 1ZZ}ojq //获得文件长度 f5tkv<) % public long getFileSize() F4X0DRC,G { _DD.#YB</ int nFileLength = -1; G?$0OU try{ p 3`odmbN URL url = new URL(siteInfoBean.getSSiteURL()); wbImE;-Z HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); $v \@mW*R httpConnection.setRequestProperty("User-Agent","NetFox"); D}i_#-^MH P;' xa^Y rfH'&k int responseCode=httpConnection.getResponseCode(); .e Jt]K if(responseCode>=400) #)BbW40f6 { 5`tMHgQO processErrorCode(responseCode); /\-iV)h1@ return -2; //-2 represent access is error ]
-}Zd\Rs } W|,Y*l I
7 B$X= XLq%nVBM8\ String sHeader; Ec4+wRWk85 P/?'ea c|hT\1XR, for(int i=1;;i++) rY:A LA { Et0[HotO //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); 4z*An}ol] //Utility.log(in.readLine()); \ )'`F;
P sHeader=httpConnection.getHeaderFieldKey(i); #]vs*Sz if(sHeader!=null) Ex`!C]sQ { 3v?R"2\qS if(sHeader.equals("Content-Length")) aePLP { Oye:V nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); TQ`4dVaf break; `=QRC.b } k.@OFkX. } {9_}i#,vR else K.l7yBm break; 552yzn1 } }]B H
" } _&U.DMt2 C catch(IOException e){e.printStackTrace ();} ~jOn)jBRZ catch(Exception e){e.printStackTrace ();} OA?pBA 2leTEs5aK` kKlcK_b; Utility.log(nFileLength); *=
;M',nx _X/`7!f p*ic@n*G return nFileLength; rAwuWM@BIg } :GBM`f@ m]"13E0*x }j\_XaB //保存下载信息(文件指针位置) y}
W-OLE private void write_nPos() jwQ(E { sc)}r_|g try{ E(p*B8d output = new DataOutputStream(new FileOutputStream(tmpFile)); qh)10*FB output.writeInt(nStartPos.length); sk>E(Myo for(int i=0;i<nStartPos.length;i++) +[_mSt { PgMU|O7To // output.writeLong(nPos); sCrOdJ6| output.writeLong(fileSplitterFetch.nStartPos); yzH[~O7 output.writeLong(fileSplitterFetch.nEndPos); 8x /]H(J } ">
]{t[Ib output.close(); xC}9W6 } l.3|0lopX) catch(IOException e){e.printStackTrace ();} IMT]!j&Y, catch(Exception e){e.printStackTrace ();} qW" } JIH6! L!l`2[F| lk/[xQ/ //读取保存的下载信息(文件指针位置) B3NDx+%m private void read_nPos() #fQ}8UxU, { [5T{`& try{ MUjfqxTT DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); F15Yn int nCount = input.readInt(); &4}Uaxt) nStartPos = new long[nCount]; *kM^l!<g nEndPos = new long[nCount]; <>?7veN92 for(int i=0;i<nStartPos.length;i++) |%~Zo:Q<$> { l'm\*=3 nStartPos = input.readLong(); Z^_-LX:% nEndPos = input.readLong(); *k^'xL } T
P#Hq input.close(); q1_iV.G< }
WH^^.^(i catch(IOException e){e.printStackTrace ();} +>Xe_ catch(Exception e){e.printStackTrace ();} 2^f6@;=M } *{fL t JK=0juv<E )wdTs>W7 private void processErrorCode(int nErrorCode) 79MF;>=tV { Gw@]w;ed System.err.println("Error Code : " + nErrorCode); -:~"c@D } MIx,#]C& ziXZJ^(FI Y)*:'&~2e //停止文件下载 X Z4q{^o public void siteStop() -?}Z0e(w { &cuDGo. bStop = true; 3-6Lbe9H for(int i=0;i<nStartPos.length;i++) XFmTr@\M fileSplitterFetch.splitterStop(); 40$- ]i vp2s)W8W ~|kSQ7O^ } gT0N\oU" } EZb_8<DH //负责部分文件的抓取 efUa[XO **FileSplitterFetch.java {,Z-GJ */ @{LD_>R package NetFox; NR9=V l)K8.(2 O+ghw1/ import java.io.*; <4%cKW0 import java.net.*; ;,7/> Vt K|V<e[X[V +DwE~l public class FileSplitterFetch extends Thread { OGWZq(c"6 x3tos!Y {[:]}m(c String sURL; //File URL J2avt long nStartPos; //File Snippet Start Position rZ:-%#Q4 long nEndPos; //File Snippet End Position 8kYI ~ int nThreadID; //Thread's ID u [Dz~ boolean bDownOver = false; //Downing is over >HL$=J_K? boolean bStop = false; //Stop identical @CNe)&U FileAccessI fileAccessI = null; //File Access interface 8m"(T-wb6{ {\p&? ;&OVV+y public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException ttfCiP$ {
Pk/3oF this.sURL = sURL; ]}z"H@k this.nStartPos = nStart; ,9YgznQ this.nEndPos = nEnd; &qMt07 nThreadID = id; `JzP V/6 fileAccessI = new FileAccessI(sName,nStartPos);//定位 >j6"\1E+Dz } #dhce0m y*7{S{9 7 <<`9, public void run() g|=1U { }-N4D"d4o while(nStartPos < nEndPos && !bStop) F|bg2)|du8 { .g?Ppma ~v|NC([( kkU#0p? 7 try{ kA4bv} URL url = new URL(sURL); r(OH HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); .8]buM5_G httpConnection.setRequestProperty("User-Agent","NetFox"); ./@C String sProperty = "bytes="+nStartPos+"-"; YMr2Dv\y httpConnection.setRequestProperty("RANGE",sProperty); 7w5C
NV Utility.log(sProperty); ';zS0Yk PFI^+'; %@MO5#)NI InputStream input = httpConnection.getInputStream(); Lu5lpeSQ //logResponseHead(httpConnection); /H~]5JZ3-E }F4%5go 2e^6Od!Y? byte[] b = new byte[1024]; 0@> int nRead; GAU7w"sE while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) (MzThGJK_ { EV[ BB;eb nStartPos += fileAccessI.write(b,0,nRead); %v)+]Ds{ //if(nThreadID == 1) {&uN q^Ch // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Vu5Djx' } F#KUu3;B WGA"e p>h}k_s Utility.log("Thread " + nThreadID + " is over!"); #&,~5 bDownOver = true; [pX cKN //nPos = fileAccessI.write (b,0,nRead); V i<6i0 } ,u S)N6'b6 catch(Exception e){e.printStackTrace ();} THy{r_dx } AYsiaSTRqW } ,Q,3^v- e !N% 'b:UafV //打印回应的头信息 UFGUP]J> public void logResponseHead(HttpURLConnection con) _jM+;=f { /RemLJP
F for(int i=1;;i++) ^KUM4.
6 { &xE+PfX String header=con.getHeaderFieldKey(i); s8+{##"1
q if(header!=null) EYR%u'&7' //responseHeaders.put(header,httpConnection.getHeaderField(header)); bltZQI| Utility.log(header+" : "+con.getHeaderField(header)); 9S/X ,|i else x\b+B
break; ;T3}#Q*qC } aE[:9{<| } kJ"}JRA< ![ @i+hl Y/]J0D public void splitterStop() $E-c%- { [B@R(z=H bStop = true; L*zfZ& } 8d[!"lL Cig!3 S9{&.[O } 2[I[I*"_d KvmXRf*z HE@P< /* U"OA m} **FileAccess.java i?n#ge *//文件访问(定位,写) <(_${zR package NetFox; Gdv{SCV import java.io.*; QRHM#v S !laOiH plgiQr # public class FileAccessI implements Serializable{ 7VW/v4n IPk"{T3 //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 \4Z"s[8} RandomAccessFile oSavedFile; EfqC_,J*3 long nPos; C^ZDUj` &uXu$)IZ N4w&g- public FileAccessI() throws IOException Dpkc9~z { +?^lnoX this("",0); 6.6x$y3v } yX1OJg[s, <4Ik]Uz^
u"-."_ public FileAccessI(String sName,long nPos) throws IOException ,B$e'KQ { 1i}p?sU oSavedFile = new RandomAccessFile(sName,"rw"); pykRi#[UrX this.nPos = nPos; nmoC(| r oSavedFile.seek(nPos); t'* 2)U } q(Zu;ecBN S#l)|c_~ -~_;9[uV public synchronized int write(byte[] b,int nStart,int nLen) $: qrh66 { O4T_p=Xc int n = -1; N:UA+ try{ ;fB!/u oSavedFile.write(b,nStart,nLen); w"AO~LF n = nLen; v<E_n;@9k } ZmZ7E]c catch(IOException e) r?}L^bK { -z'6.IcO e.printStackTrace (); # N'_~:H } =' &TqiIv" l-M
.C8N <^"0A return n; r-ljT<f%J[ } VE*&t>I ^K[[:7Aem 4_w{~ } |VmQ Vc&xXtm[v D`NQEt"( /* :PP!v!vk **SiteInfoBean.java ~i=5NUE */ X@Yl<9|i package NetFox; lQ| i
Ws )P9&I.a8 ~}ba2dU8 public class SiteInfoBean { g&d
tOjM 2qPQ3-' p/Ri|FD6 private String sSiteURL; //Site's URL M~-jPY,+ private String sFilePath; //Saved File's Path M(.Up private String sFileName; //Saved File's Name C[nacAi private int nSplitter; //Count of Splited Downloading File T9]:,
z jo ~p#l.' A~#w gLGn public SiteInfoBean() -}P/<cu: {//nSplitter的缺省值为5 dgW/5g //default value of nSplitter is 5 kx07Ium this("","","",5); #RP7?yGM, } L%fJH_$_s i~.9B7hdE XZ_vbYTj public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) =QW:},sp { e'&<DE) sSiteURL= sURL; Pql;5
~/
sFilePath = sPath; RaAvPIJa | sFileName = sName; 8~v E this.nSplitter = nSpiltter; UE
K$ v v]rXJu1 V,>uM
>$ } ItwJL` )k&!& B/bS: public String getSSiteURL() z+X DN: { ~jM!8]= return sSiteURL; e18}`<tW- } !f*t9 I9Q Cm[^+.=I sU;aA0kz public void setSSiteURL(String value) qm|T<zsDY# { pR7 D3Q:^7 sSiteURL = value; d1n*wVl } <amdPo+2D t"FB}%G 'L ]k\GO public String getSFilePath() H05U{vR { K6e_RzP,.w return sFilePath; mW_ N-z } ;09U*S$eK
gIcm`5+T gBJM|"_A? public void setSFilePath(String value) K)TMr"j\ { NEcE-7aT sFilePath = value; zn/b\X/ } Q5/BEUkC gshgl3 b[ .pD3 public String getSFileName() 8B|B[,` { [:bYd}J return sFileName; mE3M$2} } ec"+Il p|VgtQ/)% 4'U #<8 public void setSFileName(String value) p$zj2W+sN { S '%!KGVe sFileName = value; R^tDL } VT5o#NR{R uI+^8-HZ; IjnO2X public int getNSplitter() (xlAS {
F!~o J return nSplitter; QOKE9R#Y } _.K<#S i2m+s; xGo,x+U* public void setNSplitter(int nCount) {igVuZ(>en { Evb %<`gd nSplitter = nCount; ewp&QH4 } Nt
P=m
@ } FOD_m&+ ?;?$\b= z.] /* V]0~BV **Utility.java 2^T`> ?{X */ \EOPlyf8x package NetFox; U+'h~P'4 e$=0.GWT sboX< public class Utility { %TA@-tK= `=VN\W^& &/tGT3) public Utility() 6qkMB|@Ix { DXc3u^
L dMjAG7U qo62!q } :/941?%M E6mwvrm8 //线程睡眠 J:JkX>n%k= public static void sleep(int nSecond) "I)`gy& { MPF;P&6 try{ zd^QG Thread.sleep(nSecond); .m_-L
Y- } |)IS[:X catch(Exception e) [SX>b"L { Hv.nO-c e.printStackTrace (); ecG,[1]; } 9|9Hk1 } {8Uk] kPg| o3H //日志 s'^"s_j public static void log(String sMsg) Y76U htYH { '}.Z' %; System.err.println(sMsg); !pG_MO } x cA5 xix:=
a ]Y@B= 5e/ public static void log(int sMsg) n*vzp?+Y { Ht!]% System.err.println(sMsg); S1oP_A[| } Qfd4")zhG } 13KfI uf<nVdC. N)b.$aC /* 2#?qey **TestMethod.java |ZuS"'3_w */ ^i!6q9<{e package NetFox; "~^#{q -=CZhp O0Sk?uJ< public class TestMethod { ^P
!}" /R%
Xkb u?+i5=N9{ public TestMethod() 5$.e5y<&( { ///xx/weblogic60b2_win.exe i$:QOMA try{ M
h5>@-fEE SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); A9L
{c!|- //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); F;;\I SiteFileFetch fileFetch = new SiteFileFetch(bean); %an&lcoX fileFetch.start(); N% W298 } Uc<j{U
, catch(Exception e){e.printStackTrace ();} S eTn] "[t (u/e qH1&tW$ } E+xC1U
3 HbXYinG% p&|:,|jo5 public static void main(String[] args) ytg' {) { c mI&R( new TestMethod(); uF89B-t } 236,o
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