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/* M^madx6` **SiteFileFetch.java ]> !<G8=N */ }ynT2a#LU' package NetFox; E8}+k o import java.io.*; b!>\2DlyJ import java.net.*; .w?
.ib( s4= "kT] 2ef;NC.&n public class SiteFileFetch extends Thread { U HO_Z PH4%R]{8{ Wa"(m*hW SiteInfoBean siteInfoBean = null; //文件信息Bean ;GHvPQc_ long[] nStartPos; //开始位置 "E=j|q long[] nEndPos; //结束位置 Pt< s* ( FileSplitterFetch[] fileSplitterFetch; //子线程对象 JcO08n long nFileLength; //文件长度 B/uniR^x boolean bFirst = true; //是否第一次取文件 wFn[9_`* boolean bStop = false; //停止标志 )hKS0`$| File tmpFile; //文件下载的临时信息 GJ(d&o8 DataOutputStream output; //输出到文件的输出流 CZ{k@z`r ` (4pu6uT //负责整个文件的抓取,控制内部线程(FileSplitterFetch类) XR+3j/zEQ public SiteFileFetch(SiteInfoBean bean) throws IOException J]/}ojW3 { <&!]K?Q9i siteInfoBean = bean; lT8\}hNI+ //tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); E">T*ao tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); L):U"M>]= if(tmpFile.exists ()) =v6*| { {y^3> 7 bFirst = false; yl]FP@N( read_nPos(); 2YwVU.*> } y>VcgLIB else do/)~9[4\ { "E!mva*NU nStartPos = new long[bean.getNSplitter()]; N1EezC'^ nEndPos = new long[bean.getNSplitter()]; f`<FT'A } M@UVpQwgv l0]d ;."<m WT3gNNx| } $\Lyi#< LX+5|u ;-mdi/*g public void run() |VH!)vD { !|wzf+V //获得文件长度 eOlKbJU //分割文件 (il0M=M //实例FileSplitterFetch tOdT[& //启动FileSplitterFetch线程 /ONV5IkPy //等待子线程返回 :Waox"#=g try{ !3&kQpF if(bFirst) 8|1^|B(l { 8s}J!/2 nFileLength = getFileSize(); zi]%Zp if(nFileLength == -1) jh ez { =ZYThfAEw System.err.println("File Length is not known!"); N"5fmY< } +54aO else if(nFileLength == -2) VkmRh,T { D@Da0 System.err.println("File is not access!"); 8pZ<9t' } t@zdmy else 'w/qcD- { "`tXA for(int i=0;i<nStartPos.length;i++) 0Dv JZ|e { Jcf"#u-Q/ nStartPos = (long)(i*(nFileLength/nStartPos.length)); P8yIegPY } nn~YK for(int i=0;i<nEndPos.length-1;i++) C"<s/h { TvhJVVQ+? nEndPos = nStartPos[i+1]; N0TeqOi4Y } Iq5pAHm>M6 nEndPos[nEndPos.length-1] = nFileLength; b}z`BRCc } .#6MQJ]OH } RNJFSD. NC23Z0y '%iPVHK7 //启动子线程 )6oGF>o> fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; +",S2Qmo for(int i=0;i<nStartPos.length;i++) {5Lj8N5 { ('k<XOi fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), @M;(K<%h siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), [uuj?Rbd nStartPos,nEndPos,i); s'I)A^i+ Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); |WqOk~)[Z3 fileSplitterFetch.start(); *dE^-dm# } ?H|T&66 // fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), Ggm` ~fS siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); -$8.3\6h // Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", L_O$>c nEndPos = " + nFileLength); 3fS}:!sQ // fileSplitterFetch[nPos.length-1].start(); mX# "+X| 6Z:YT&,f Y>6.t"?Q^ //等待子线程结束 $n=lsDnhQ //int count = 0; {")\0|2\x //是否结束while循环 mB 55PYA boolean breakWhile = false; 3Kq`<B~% nS.G~c| /MTf0^9 while(!bStop) Fe=8O ^\ { 9M$/=>^
Z write_nPos(); @s*,xHE Utility.sleep(500); dbGgD=}o breakWhile = true; c$M%G)P /Bv#) -5 ETw]!
br for(int i=0;i<nStartPos.length;i++) t%0?N<9YkU { C".1+Um if(!fileSplitterFetch.bDownOver) S'i;xL> { ? 5|/
C breakWhile = false; 2ypIq break; ISqfU]>[ } $ @1u+w } ZW4aY}~)$ if(breakWhile) mf$j03tu break; YcM;S t 0O4GcAN L4'[XcY //count++; L10IF //if(count>4) d"<F!?8 // siteStop(); [s6C
ZcL } 7!4V>O8@ >.%4~\U 1=GI&f2I System.err.println("文件下载结束!"); kA?_%fi1 } aq>?vti1D catch(Exception e){e.printStackTrace ();} M@7Xp)S" } Ej(2w Q h[Tk;h @'jfKW //获得文件长度 "~+.Af public long getFileSize() :hqZPajE { V0i9DK|! int nFileLength = -1; G?)vWM`j try{ a|qsQ'1,; URL url = new URL(siteInfoBean.getSSiteURL()); MK$Jj" HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); .KA V) So" httpConnection.setRequestProperty("User-Agent","NetFox"); |ng%PQq) s@@1
*VQ bg7n int responseCode=httpConnection.getResponseCode(); BW K IbG if(responseCode>=400) Wr%7~y*K { I48VNX processErrorCode(responseCode); ,@CfVQz return -2; //-2 represent access is error LJuW${Y } 8C&x MA^ Gp2!xKgm lgD]{\O$ip String sHeader; &d^=siL %$X\" Xa,&ef&q for(int i=1;;i++) qd2xb8r { i57(
$1. //DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); pM$ @m] //Utility.log(in.readLine()); @p!Q1-] = sHeader=httpConnection.getHeaderFieldKey(i); X>,A if(sHeader!=null) ZwJciT!_~ { sBW3{uK if(sHeader.equals("Content-Length")) ;;#nV$ { o0Gx%99' nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); ;sQbn|=e" break; @EZ>f5IO+ } ([pSVOnIz } oXal else ~<O,Vs_C/ break; \+B?}P8N*l } JZx%J) } GW
m4~]0E catch(IOException e){e.printStackTrace ();} l)Mh2lA,= catch(Exception e){e.printStackTrace ();} P[i\e7mR 2P}I'4C- |rPAC![= Utility.log(nFileLength); `BT^a
=5 ;93KG4a ww,Z )m return nFileLength; RaNeZhF>M } Q"}s>]k3_ L3c*LL 19I:%$U3 //保存下载信息(文件指针位置) ^Q2ZqAf^a private void write_nPos() x:-`o_Q*i { (V9h2g&8L try{ ixI:@#5wY output = new DataOutputStream(new FileOutputStream(tmpFile)); Slx2z%'> output.writeInt(nStartPos.length); r*d Q5
_ for(int i=0;i<nStartPos.length;i++) ,U=E[X=H { myvh@@N // output.writeLong(nPos); ]N}]d
+^6 output.writeLong(fileSplitterFetch.nStartPos); Q_}n%P:u output.writeLong(fileSplitterFetch.nEndPos); " i`8l.Lc } ^ KOzCLC output.close(); 9q|7<raS } 'lQYJ0 catch(IOException e){e.printStackTrace ();} ~ x`7)3 catch(Exception e){e.printStackTrace ();} vInFo.e[4 } m5gI~1(9 Oxa5Kfpa el*9 Ih //读取保存的下载信息(文件指针位置) TzF0/T! private void read_nPos() *.8:'F { wZ>Y<0, try{ M&e8zS DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); EA yukM2 int nCount = input.readInt(); yQ-hnlzn~ nStartPos = new long[nCount]; Wo3'd|Y~i nEndPos = new long[nCount]; n~%}Z[5D for(int i=0;i<nStartPos.length;i++) !sK#zAR2
{ DQ_ 2fX~) nStartPos = input.readLong(); !R{em4 8D nEndPos = input.readLong(); r$DZkMue } BE4\U_]a3 input.close(); x5vzPh` } uBRw>"c_*8 catch(IOException e){e.printStackTrace ();} EXHR(t}e catch(Exception e){e.printStackTrace ();} C'<'7g4 } _3&/(B%H :uvc\|:s m/?h2McS private void processErrorCode(int nErrorCode) ~XQ$aRl& { NcM3P G System.err.println("Error Code : " + nErrorCode); XGk}e4;_ } Fwv\ pJ}$ y:9?P~ nKu(XgFv //停止文件下载 %8<2> public void siteStop() ;MZbL) { 1.dX)^\ bStop = true; 1^sb T[%R for(int i=0;i<nStartPos.length;i++) I~k=3,7< fileSplitterFetch.splitterStop(); yk#rd~2Z0 ~2 Oc
K f?m5pax| } %*p^$5L< } S)Mby //负责部分文件的抓取 Ij,Yuo **FileSplitterFetch.java I+~\
w N */ ?o>6S
EGW package NetFox; k(9s+0qe [oJ& J>U' JU2P%3 import java.io.*; )<Ob import java.net.*; |VYr=hjo I1v@\Rb NYwGK| public class FileSplitterFetch extends Thread { 4w9F+*- Gl"wEL* QpJIDM/ String sURL; //File URL %&2B long nStartPos; //File Snippet Start Position v?{vg?vI long nEndPos; //File Snippet End Position 2;}xN! 8 int nThreadID; //Thread's ID (xQI($Wq*M boolean bDownOver = false; //Downing is over fv/v| boolean bStop = false; //Stop identical -s33m]a; FileAccessI fileAccessI = null; //File Access interface D:6N9POB C\/b~HU m&ZJqsZIL public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException R/rcXX7% { ]3 j[3' this.sURL = sURL; qw)Key this.nStartPos = nStart; %0 qc@4 this.nEndPos = nEnd; P;>!wU~* nThreadID = id; 8nf4Jk8r fileAccessI = new FileAccessI(sName,nStartPos);//定位 \`&xprqAw } kp.|gzA6 Ltl]j*yei _rG-#BKW8L public void run() IY~
{)X { $Uy#/MX while(nStartPos < nEndPos && !bStop) H!#5!m& { sB8p(
L %'kX"}N/ epYj+T try{ +O,V6XRr URL url = new URL(sURL); Ho>p ^p HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); QdirE4W httpConnection.setRequestProperty("User-Agent","NetFox"); x6jm-n String sProperty = "bytes="+nStartPos+"-"; 35}P0+ httpConnection.setRequestProperty("RANGE",sProperty); 6\XP|n-0+0 Utility.log(sProperty); WEps.]s &!4(
0u tRkrV]K InputStream input = httpConnection.getInputStream(); )v};C< //logResponseHead(httpConnection); %{Xm5#m Le_CIk 5YL 65uZLsQ byte[] b = new byte[1024]; -z&9DWH int nRead; 83B\+]{hD while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) ;+r0
O0;9 { rrbZ+*U nStartPos += fileAccessI.write(b,0,nRead); Re7{[*Q4 //if(nThreadID == 1) ]m RF[b$ // Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Fu#Y7)r } [;Vi~$p|Eo (tTLK0V-|3 e1oFnu2R Utility.log("Thread " + nThreadID + " is over!"); )!BB/'DRQ bDownOver = true; gca|?tt //nPos = fileAccessI.write (b,0,nRead); s!bHS_\e| } Q4#\{" N! catch(Exception e){e.printStackTrace ();} #T
Z!#,q } 7%W!k zp> } zkH<aLRB EWSr@}2j
. ws#hhW3qK //打印回应的头信息 9'D8[p% public void logResponseHead(HttpURLConnection con) KX]-ll { zj%cd; for(int i=1;;i++) 9]"\"ka3> { bx1G
CD String header=con.getHeaderFieldKey(i); H+nr5!`kz if(header!=null) Z=0iPy,m> //responseHeaders.put(header,httpConnection.getHeaderField(header)); {|G&W^` Utility.log(header+" : "+con.getHeaderField(header)); )x y9X0 else ?exALv'B break; ><MGZ?-N } "pR $cS } <<i=+ed8eP >qr=l,Hi F>p%2II/ public void splitterStop() hU |LFjc { Mf!owpW
T bStop = true; ,^Ex}Z } ))c*_n bBd *}"v^" RJQ/y3 } g8C+1G8 9c#L{in D-;J;m
\ /* Z?5,cI[6# **FileAccess.java u!sSgx= *//文件访问(定位,写) M|5^':Y package NetFox; ^w.k^U=B import java.io.*; SZNFE ER0TY, ag|9$ public class FileAccessI implements Serializable{ xKRfl1 F^4*|g //RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 KB$ vQ@N RandomAccessFile oSavedFile; ;""-[4C long nPos; = .fc"R|<K 8f5%xY$ z1z=P%WK public FileAccessI() throws IOException \UVT_=Y { F0DPS:c this("",0); b#bO=T$e- } 89 _&X[X #MmmwPB_ J$o[$G_Z public FileAccessI(String sName,long nPos) throws IOException 1',+&2)oj { k
i~Raa/e oSavedFile = new RandomAccessFile(sName,"rw"); ":5~L9&G this.nPos = nPos; j(wY/Hl oSavedFile.seek(nPos); "Wzij&WkQ } Z3&XTsq T#ecLD# 2d,wrC<'$ public synchronized int write(byte[] b,int nStart,int nLen) mE)x7 { M$DwQ}Z int n = -1; 1KfJl S+ try{ -Hl\j(D7 oSavedFile.write(b,nStart,nLen); pZNlcB[Qn- n = nLen; 9&?tQ"@x } KyVe0>{_u catch(IOException e) &@Ji+ { 'eTpcrS3 e.printStackTrace (); dA3`b*nC } /jn:e"0~ J-HabHv G5C#i7cpm return n; \H}@-*z+) } #CBo #RsIxpc PDa06(t7 } @5uyUSt] 7]0\[9DyJ :{e`$kz /* tFb|y+ **SiteInfoBean.java 2l;ge>DJ */ LS?` {E
package NetFox; >xk:pL*o` IrVM|8vT3 5wVi{P5+ public class SiteInfoBean { _ ;v_L >Kqj{/SWK J[Y lo&w3 private String sSiteURL; //Site's URL 0.3[=a43 private String sFilePath; //Saved File's Path |$i1]Dr6 private String sFileName; //Saved File's Name dRarNW private int nSplitter; //Count of Splited Downloading File
`\}zm~ )xXrs^ ./z"P]$ public SiteInfoBean() ]MBJ"1F {//nSplitter的缺省值为5 TO8\4p*tE //default value of nSplitter is 5 P7^TRrMF this("","","",5); iz$v8;w } 4%Wn}@ yM\tbT/l Amq8q public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) NC#kI3 { { 2T{-J!k sSiteURL= sURL; 0bRkC,N
( sFilePath = sPath; q,19NZ sFileName = sName; |R|U z` this.nSplitter = nSpiltter; a|^-z|. 5#A1u
Nb LP-KD } Qc)RrqYNGF VA*79I#_q N
NXwT0t public String getSSiteURL() ocuNrkZ { -t706(#k return sSiteURL; +BTNm66Z } )l81R 2+hfbFu,1 Xj&~N;Ysb public void setSSiteURL(String value) ag*Hs<gi { XzTH,7[n sSiteURL = value; =.3P)gY) } V-o`L`(F` -^NAHE$bW Tef3
Z6 public String getSFilePath() y*TNJJ| { Z!BQtICs return sFilePath; kkuQ"^<J } 0OoO cc DG%%] 2ucsTh@ public void setSFilePath(String value) APOU&Wd { \Q
BpgMi( sFilePath = value; g{f>jd } [OToz~=) HZ`G)1&) 5 <>agK] public String getSFileName() gpTF^.( { 26klW:2* return sFileName;
?tM]. \ } DcvmeGl ():?FJM ,,-[P*@ public void setSFileName(String value) 28L'7 { %l$&_xV- sFileName = value; (YWc%f4 } -X[8 soz 2wimP8 kl<B*:RqH public int getNSplitter() R S_lQ{' { I4DlEX return nSplitter; H<}Fk9 } X9BBnZ JV*,!5 lDM~Z3(/b public void setNSplitter(int nCount) "a_D]D(d5 { i1H80m s nSplitter = nCount; UK9MWC5g9 } :{= 'TMJ7 } Q)i`.mHfFI eX),B b.u8w2( /* 2ZIY{lBe **Utility.java jm!C^5! */ af5`ktx package NetFox; _=M'KCL*) sYW)h$p;D )jZ=/xG public class Utility { lM]),}
u$ / ]59 jtOsb91c} public Utility() 4 ~|TKd{ { zbKW.u]v pD.@&J~ -{sv3|P> } NqfDY
*"bp}3$^^ //线程睡眠 Y{:/vOj public static void sleep(int nSecond) [";5s&)q { 7%x+7 try{ "ddH7:(k< Thread.sleep(nSecond); $Lbe5d?\ } 8qLgB
catch(Exception e) _+Kt=;Y8 { 2 g8P$+;
e.printStackTrace (); `G5wiyH}) } ;Z~.54Pf{d } YxqQg 9@a;1Wr/f //日志 ~O7(0RsCN public static void log(String sMsg) ]6[d-$#^ko { y!D`.' System.err.println(sMsg); -"tgEC\tD } PKs%-Uk e{+{,g{iu @ BW8`Ky1 public static void log(int sMsg) =}KbE4D+8 { ~F6gF7]z System.err.println(sMsg); %hb5C 4q } RL)3k8pk } d*(\'6? "8
mulE, @{a-IW3 /* _Cs}&Bic_ **TestMethod.java T/6=A$4
# */ "{xv|C<*n package NetFox; ;I@L ll09j Ef (` Mz.VN public class TestMethod { ?YykCJJ ~@ Cb-E<W&2D `5&V}"lB public TestMethod() W)~.o/; { ///xx/weblogic60b2_win.exe %$KO]
try{ L=FvLii. SiteInfoBean bean = new SiteInfoBean("http://localhost/xx/weblogic60b2_win.exe","L:\\temp","weblogic60b2_win.exe",5); OYy !4Fp //SiteInfoBean bean = new SiteInfoBean("http://localhost:8080/down.zip","L:\\temp","weblogic60b2_win.exe",5); 'U0I.x( SiteFileFetch fileFetch = new SiteFileFetch(bean); F7l:*r,O fileFetch.start(); .*7UT~o=CS } OIT;fKl9 catch(Exception e){e.printStackTrace ();} wdV?&W+ B\& |