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/* ;Y$>WKsV **SiteFileFetch.java zTF{ g+ */ <Kd(fFe package NetFox; Q +^& import java.io.*; [1VA`:?W import java.net.*; 1cLtTE d(T4Kd$r {r,Uik-nL public class SiteFileFetch extends Thread { wA=r]BT ,#A(I#wL~ Ymk?@mV4 SiteInfoBean siteInfoBean = null; //文件信息Bean Gt9$hB7 long[] nStartPos; //开始位置 2 |s ohF long[] nEndPos; //结束位置 (^d7K:-' FileSplitterFetch[] fileSplitterFetch; //子线程对象 Je1d|1!3 long nFileLength; //文件长度 bbK};u boolean bFirst = true; //是否第一次取文件 lLx!_h boolean bStop = false; //停止标志 q@|+`>h File tmpFile; //文件下载的临时信息 {^VtD DataOutputStream output; //输出到文件的输出流 W$rWg>4> ~RhUg~o //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) #jQauO public SiteFileFetch(SiteInfoBean bean) throws IOException J7+G"_)' { +I3jI < siteInfoBean = bean; :v&[! //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); SS=<\q#MS tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); >cu%C s=m if(tmpFile.exists ()) KP&+fDa { { mi}3/ bFirst = false; ,=:K&5mCv read_nPos(); ]pax,|+$C } ef5)z}B else y_Y(Xx3 { :Ha/^cC/3 nStartPos = new long[bean.getNSplitter()]; &L;ocd$ nEndPos = new long[bean.getNSplitter()]; BUO5g8m{ } 2ym(fk.6{ )
7/Cg Kc MzY 9u B?-. } :!`"GaTy e
w^(3& [XfR`@ public void run() QU"WpkO { -+#%]P8l //获得文件长度 f%Q{}fC{* //分割文件 aF{_"X2 //实例FileSplitterFetch X 'Ss#s>g //启动FileSplitterFetch线程 <$~lFV //等待子线程返回 [{znwK@ try{ iNO>'7s7 if(bFirst) 37#&:[w> { _C?j\Wy nFileLength = getFileSize(); LW %AZkAx if(nFileLength == -1) :QE5 7. { {%V(Dd[B6 System.err.println("File Length is not known!"); {i5?R,a) } DBT4 W/ else if(nFileLength == -2) "g{q=[U} { BQ@7^E[ System.err.println("File is not access!"); O\5%IfB'" } /k#-OXP~ else _Cmmx`ln { ]ss[n.T0* for(int i=0;i<nStartPos.length;i++) (m~>W"x/ { =
tv70d' nStartPos = (long)(i*(nFileLength/nStartPos.length)); 4"d,=P.{ } 7=G2sOC for(int i=0;i<nEndPos.length-1;i++) S$6|KY u { ewZ?+G+m nEndPos = nStartPos[i+1]; 2w?q7N% } 44]s`QyG nEndPos[nEndPos.length-1] = nFileLength; o<`vh*U@,4 } C"hN2Z!CD| } @KN+)q P #lYyL`B+~ P*|N)S)X% //启动子线程 q!Du
J fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; A~zn; for(int i=0;i<nStartPos.length;i++) cG|fau<G { U( YAI%O fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), +&GV-z~o siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), #NS|9jW nStartPos,nEndPos,i); 6x+ujUBkK Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); i_Kwxn$ fileSplitterFetch.start(); i2F7O"f. } Ss3p6%V/ // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ^QK`z@B siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); twT/uBQ4a // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", -'rdN i nEndPos = " + nFileLength); X+hHE kJ // fileSplitterFetch[nPos.length-1].start(); Z%t_1t 6FUW^dt YEL0h0gn //等待子线程结束 })g<I+]Hf9 //int count = 0; ]33!obM //是否结束while循环 TOwd+]B boolean breakWhile = false; &?<uR)tl X Xque- dkQ4D2W*\ while(!bStop) TCr4-"`r-{ { ^Hd[+vAvR write_nPos(); ]a $6QS Utility.sleep(500); j\2Qe%d breakWhile = true; SSK}'LQ ?=u?u
k<- )M0YX?5AR for(int i=0;i<nStartPos.length;i++) r`H}f#.KR { #M,&g{ if(!fileSplitterFetch.bDownOver) inh0p^ { p{f R$-d breakWhile = false; HJL! ;i break; ,OE&e*1 } Hon2;-:]{] } |'^s3i&w if(breakWhile) %iyc1]w{ break; 1\}vU FO!Td A*JOp8\) //count++; /{T&l*' //if(count>4) iaGA9l<b // siteStop(); j=WxtMS } coP->&(@U# +m=b
"g qeZG/\, System.err.println("文件下载结束!"); l:HQ@FX } .OPknC catch(Exception e){e.printStackTrace ();} ,Qj G|P } 727#7Bo S%SYvA *x36;6~W; //获得文件长度 Llfl I public long getFileSize() \)PB p { E`HoJhB int nFileLength = -1; -hd try{ L.n@;* URL url = new URL(siteInfoBean.getSSiteURL()); ]'.qRTz'\t HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); \CB^9-V3 httpConnection.setRequestProperty("User-Agent","NetFox"); !np_B0` |t,sK aL ,=/9Ld2w9 int responseCode=httpConnection.getResponseCode(); ,Py\Cp=Dw if(responseCode>=400) Sd+5Uf` { qv!(In>u processErrorCode(responseCode); K#3^GB3P return -2; //-2 represent access is error
:1' } L+t
/
E` 26V6Y2X T(!1\ TB String sHeader; *zrT;jG m&)/>'W $LP(\T([ for(int i=1;;i++) /[R=-s ; { * #yF`_p //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); K\xz|Gq //Utility.log(in.readLine()); V@'Xj .ze sHeader=httpConnection.getHeaderFieldKey(i); `M@ESA(e if(sHeader!=null) p=+Y7NE) { xP8/1wd. if(sHeader.equals("Content-Length")) 0h-NT\m { &;Ncc,jb nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); O,$*`RZpx break; z#{Y>.b } FZ*"^=)`G } I4Do$&9<D else CD1Ma8I8 break; R|?n } Np\NStx2 } snbXAx1L catch(IOException e){e.printStackTrace ();} #}A"yo catch(Exception e){e.printStackTrace ();} ={g"cx Et6j6gmif q<}IO Utility.log(nFileLength); h#1:ypA6l [^"}jbn/ )nd^@G^ return nFileLength; vJE=H9E } *|&Y ,H? g *5_m(H g[cnaS|? //保存下载信息(文件指针位置) u#6s^
)W private void write_nPos() {i>AQ+z61f { !@C-|=9G try{ MN: {,#d0 output = new DataOutputStream(new FileOutputStream(tmpFile)); #}Qe{4L output.writeInt(nStartPos.length); /_{-~0Z=@B for(int i=0;i<nStartPos.length;i++) Df"PNUwA" { w1Bkz\95 // output.writeLong(nPos); rCJ$Pl9R output.writeLong(fileSplitterFetch.nStartPos); .ATpwFal output.writeLong(fileSplitterFetch.nEndPos); 3.movkj } ]&D dy&V output.close(); ,[n9DPZ } }B%9cc catch(IOException e){e.printStackTrace ();} *r.%/^@ catch(Exception e){e.printStackTrace ();} >s<Bu' r } +2[0q% i 9KK^1<46c /&6{}n //读取保存的下载信息(文件指针位置) [3dGHf;miw private void read_nPos() ,Uh^e]pC { +9/K|SB{$ try{ "8Dm7)nB DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); lz^Vi!|p int nCount = input.readInt(); m%9Yo%l~ nStartPos = new long[nCount]; _DR@P(0>_ nEndPos = new long[nCount]; 7 [e-3 for(int i=0;i<nStartPos.length;i++) NSVE3 { rBJ`=o z nStartPos = input.readLong(); Xl=RaV^X" nEndPos = input.readLong(); $YJ 1P } @5d^ C input.close(); 6{I7=.V } F`KXG$ catch(IOException e){e.printStackTrace ();} KKwM\ catch(Exception e){e.printStackTrace ();} VjM/'V5 } @@ j\OR \p:)Cdn 2K4Xu9-i:b private void processErrorCode(int nErrorCode) <v1H1'gv { Boj R" System.err.println("Error Code : " + nErrorCode); &n*ga$Q } "Lvk?k
)hx (~Z&U [l=@b4Og //停止文件下载 E"}%$=yK public void siteStop() \LUW?@gLa { }a OBQsnO bStop = true; (o{Y;E@/y for(int i=0;i<nStartPos.length;i++) A":=-$) fileSplitterFetch.splitterStop(); ^aqQw u YM#'+wl}` "s@Hg1 } 1PVZGZxAgv } 'qV lq5. //负责部分文件的抓取 ts=D **FileSplitterFetch.java }:?*n:g5 */ IlF_g` package NetFox; X$<pt,}% U_jW5mgsG PU%Zay import java.io.*; R(t%/Hvs$ import java.net.*; *vQ 6LF;y e"1mdw" .joC ZKO public class FileSplitterFetch extends Thread { iK2f]h #@nPB. !" FEp String sURL; //File URL H/t0# long nStartPos; //File Snippet Start Position #0)TS long nEndPos; //File Snippet End Position 6l,6k~Z9 int nThreadID; //Thread's ID O0y0'P-rJq boolean bDownOver = false; //Downing is over I!b"Rv=Nf- boolean bStop = false; //Stop identical ju:}%' FileAccessI fileAccessI = null; //File Access interface kM-8%a2i vEjf|-Mb9 R;,5LS&*a public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException shGUG; { _I)TO_L; this.sURL = sURL; uv5NqL& this.nStartPos = nStart; q'fOlq this.nEndPos = nEnd; ^G qO>1U nThreadID = id; xqdkc^b fileAccessI = new FileAccessI(sName,nStartPos);//定位 krGIE}5 } g3s5ra[ ?i_2ueVR Vuy%7H public void run() ((?"2 }1r { TlO=dLR7d while(nStartPos < nEndPos && !bStop) Obu 6k[BE. { =2*2$ _e8Gt6> P:J|![ try{ } A6z%|d URL url = new URL(sURL); G;u 6p HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); 3]iw3M httpConnection.setRequestProperty("User-Agent","NetFox"); f7zB_hVDmE String sProperty = "bytes="+nStartPos+"-"; o^5UHFxTCB httpConnection.setRequestProperty("RANGE",sProperty); g[y&GCKY!= Utility.log(sProperty); lhQMR(w^ r:rPzq1 5~>j98K InputStream input = httpConnection.getInputStream(); ~Y0K Wx4 //logResponseHead(httpConnection); TN Z-0 -~sW@u)O f*V^HfiQb byte[] b = new byte[1024]; p Dg!Cs int nRead; io"NqR#"v while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) XiV*d06{ { J*ofa> nStartPos += fileAccessI.write(b,0,nRead); Za,o //if(nThreadID == 1) 0(C[][a*u // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); (g dzgLHy } 3 p -SpUvp .: wg@Z RYl{89 Utility.log("Thread " + nThreadID + " is over!"); cEXd#TlY~X bDownOver = true; ui"`c%2n //nPos = fileAccessI.write (b,0,nRead); 1C=42ZZ&2 } gjiS+N[ catch(Exception e){e.printStackTrace ();} EGRIhnED# } @<OsTF L } P;7[5HFF od@!WjcM[8 * W"Pv,: //打印回应的头信息 aA%x9\Y public void logResponseHead(HttpURLConnection con) ?y%Mm09 { 8u*Q^-fpo0 for(int i=1;;i++) xt@v"P2Ok { (RUc>Qi String header=con.getHeaderFieldKey(i); )-6>!6hZ if(header!=null) SXXO# //responseHeaders.put(header,httpConnection.getHeaderField(header)); \HMuVg'Q Utility.log(header+" : "+con.getHeaderField(header)); pcd?6jh8 else ?!tO'}? break; lh\`9F: } uI)z4Z } +CQIm!Sp g5nL7;`N /w5c:BH public void splitterStop() %} { yp
hd'Pu" bStop = true; @Rd`/S@ } E)'T;% uw>y*OLU+ mmC MsBfL } _0&U'/cs #pD=TMefC uYE"OUNWL /* IQ JFL
+f **FileAccess.java R{B5{~m>W@ *//文件访问(定位,写) qP/McH? package NetFox; Kk%
IN9 import java.io.*; 25vq#sS] )Zvn{ rv~OfL public class FileAccessI implements Serializable{ I'J-)D` JFRbWQ0 //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 U
d+6=Us{ RandomAccessFile oSavedFile; U,<?]h long nPos; q)"yP\ M VE:JNm #E/|WT public FileAccessI() throws IOException +D h?MQt? { =4/K#cQ this("",0); %u?A>$Jn } (>\4%(pnD ;M O,HdP; =EHKu|rX~ public FileAccessI(String sName,long nPos) throws IOException P!R`b9_U { ?R@u'4yK oSavedFile = new RandomAccessFile(sName,"rw"); V4*/t#L/ this.nPos = nPos; _k)EqPYu@ oSavedFile.seek(nPos); }o=s"0 a } 3|Y.+W ;%/}(&E2 _:XX+3W7 public synchronized int write(byte[] b,int nStart,int nLen) gp\o|igT { %pxHGO=)E int n = -1; %8KbVjn try{ cS",Bw\ oSavedFile.write(b,nStart,nLen); 5n=~l[O n = nLen; wWJM./y } -+Ox/>k catch(IOException e) ocj^mxh=O { tY`%vI [ e.printStackTrace (); S8e ?-rC } YB9)v5Nz( K
&G #!jwn^yq return n; a/~1CrYr } 2Gc0pBqx RbEtNwG@c na|23jz4 } K!tM "`a 5BM rn0 ;C5
J^xHI /* ](k}B*Abh **SiteInfoBean.java ?[8s`caK. */ ?2S<D5MSb package NetFox; Cyp%E5b7 'Y5l3xQk %PM8;] public class SiteInfoBean { WQNFHRfO*n {%v{iE> Mgux(5`; private String sSiteURL; //Site's URL fp$U%uj private String sFilePath; //Saved File's Path 2()/l9.O' private String sFileName; //Saved File's Name Y-v6M3$ private int nSplitter; //Count of Splited Downloading File ^B'N\[ $btk48a 7 P\2x9T public SiteInfoBean() N}\3UHtO {//nSplitter的缺省值为5 !h+VbZ //default value of nSplitter is 5 -pN'r/$3V this("","","",5); 5"7lWX } i)MJP *
`_.(qg ej]>*n public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) 'Fa~l'G7X { cx+%lco! sSiteURL= sURL; hx!hI1
sFilePath = sPath; aB~=WWLR\ sFileName = sName; P?M WT]fY this.nSplitter = nSpiltter; Hg+bmwM 7HQ|3rt 10..<v7 } R5rCCp l7S&s&W @ +{&++^(}a public String getSSiteURL() I*=
=I4qx { z?g\w6 return sSiteURL; y.WEO> } 9y;8JO 6z1>(Za7> QzD8
jk# public void setSSiteURL(String value) 'z x1kq1 { O.'\GM sSiteURL = value; i/q1> } 6$\'dkufQ w*IDL0# X[$FjKZh=F public String getSFilePath() L[}Ak1 A { 6cTd
SE return sFilePath; Eh.NJI( } @l@erCw@ hv9k9i7@l f26hB;n public void setSFilePath(String value) JrwR:_+| { kSU]~x sFilePath = value; '>dx~v % } fqD1Ej JX2@i8[~ u|M_O5^ public String getSFileName() oGqbk x { YjwC8#$ return sFileName; (-hGb: } 5c6?$v/ yxL(mt8 HpR(DG)
? public void setSFileName(String value) nB#XQ8Nzx^ { nrRP1`!]T sFileName = value; ;Km74!.e7 } f]]UNS$AYQ 2sahb#e
) .L))EB public int getNSplitter() 9\a;75a { "tg?V return nSplitter; pcO0xrI } vFl06N2 61&A` (@;=[5+ public void setNSplitter(int nCount) 5YnTGf& { Ce!xa\ nSplitter = nCount; '(yjq< } 05/'qf7P,U } E@92hB4D" z3Q#Wmv2 Gq9pJ /* I?Ct@yxhF' **Utility.java b=Oec%Adx */ }ujl2uhM package NetFox; >sm<$'vZ/ -)$5[jM] )~H&YINhn public class Utility { +:#UU;W nx'Yevi0$ nypG public Utility() m}o4Vr;" { ;]sbz4? &u~#bDh Tt\G y } (|.rEaTA[1 oS Apa //线程睡眠 O#B2XoZa+ public static void sleep(int nSecond) OCN@P+L3q { wJu,N(U try{ vC>8:3Zaq Thread.sleep(nSecond); 8AuOe7D9A } Q,<V) catch(Exception e) VVDd39q { RGV}c# e.printStackTrace (); < r7s,][& } IH$ZPux } CKr5L ?)?}^ //日志 #Zt(g( T public static void log(String sMsg) xmBGZ4f% { B4 +A System.err.println(sMsg); U)iq } s\3OqJo%) TIYo&?Z) jltW@co2sV public static void log(int sMsg) Y;[+ ^J*a { vvmG46IgZ System.err.println(sMsg); b_rHt
s } v2;'F } dxK3462 P1I L] c%vtg.A /* n,8bQP=& **TestMethod.java XAw0Nn */ xmNs<mz package NetFox; e]q(fPK y,cz;2 <%GfF![v public class TestMethod { 3T84f[CFJ br4?_, 1XPYI public TestMethod() }\3jcnn { ///xx/weblogic60b2_win.exe \_8.\o"@*# try{ 9U]j@*QN SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); W}aCU~ //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); ;?.w!|6 SiteFileFetch fileFetch = new SiteFileFetch(bean); 32x[6"T fileFetch.start(); hG8<@ } lNba[;_ catch(Exception e){e.printStackTrace ();} s5
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