/* <c{RY.1[
**SiteFileFetch.java 7oDr`=q1]r
*/ e}e\*BL
package NetFox; HzT"{N9
import java.io.*; !58-3F%P
import java.net.*; w7"Z@$fs
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public class SiteFileFetch extends Thread { .Tdl'y:..
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SiteInfoBean siteInfoBean = null; //文件信息Bean @qH<4`y.^
long[] nStartPos; //开始位置 W&6P%0G/
long[] nEndPos; //结束位置 B" wk:\zC
FileSplitterFetch[] fileSplitterFetch; //子线程对象 UGPD5wX?
long nFileLength; //文件长度 Tp`by
1s
boolean bFirst = true; //是否第一次取文件 ('xu2 ;<
boolean bStop = false; //停止标志 'wX'}3_/g
File tmpFile; //文件下载的临时信息 h2u>CXD
DataOutputStream output; //输出到文件的输出流 ~OEP)c\k
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//负责整个文件的抓取,控制内部线程(FileSplitterFetch类) G)?O!(_
public SiteFileFetch(SiteInfoBean bean) throws IOException 0QDm3V0n
{ "@E1^
siteInfoBean = bean; W]n%$a
//tmpFile = File.createTempFile ("zhong","1111",new File(bean.getSFilePath())); ewk62{
tmpFile = new File(bean.getSFilePath()+File.separator + bean.getSFileName()+".info"); H>`?S{J
if(tmpFile.exists ()) }{S W~yW
{ Mx-,:a9}
bFirst = false; Vcl"qz@Fj
read_nPos(); Fp06a!7<
} >b |l6#%
else ){")RrD(
{ y8wOJZ<K
nStartPos = new long[bean.getNSplitter()]; ^Yn{Vi2.
nEndPos = new long[bean.getNSplitter()]; z1F[okLA
} &S<tX]v
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} Tfgx>2
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public void run() ?4_^}B9
{ |jaUVE_2[
//获得文件长度 l<{]%=Qg
//分割文件 U\
y?P:yy
//实例FileSplitterFetch L$@^EENS
//启动FileSplitterFetch线程 6$b"tdP
//等待子线程返回 p(~>u'c
try{ +8Zt<snG
if(bFirst) q=}Lm;r
{ j46fQ
nFileLength = getFileSize(); c:51In|~{C
if(nFileLength == -1) ZQnJTS+ Rd
{ 2anx]QV4
System.err.println("File Length is not known!"); V4 Pf?g
} xK0VWi
else if(nFileLength == -2) OHqLMBW!!
{ FcsEv {#U
System.err.println("File is not access!"); Ab-S*|B
} * "ER8\
else ?'$=G4y&?
{ P~i^V;g
for(int i=0;i<nStartPos.length;i++) >RBq&'f
{ OcMd'fwO
nStartPos = (long)(i*(nFileLength/nStartPos.length)); +:~&"U^z&
} b2H!{a"
for(int i=0;i<nEndPos.length-1;i++) jfS?#;T)
{ i,FG?\x@
nEndPos = nStartPos[i+1]; _ts0@Z_:
} netKt_
nEndPos[nEndPos.length-1] = nFileLength; HPCgv?E3
} i?'HVx
} }!& w<wR
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//启动子线程 CjOaw$s
fileSplitterFetch = new FileSplitterFetch[nStartPos.length]; B8|=P&L7N
for(int i=0;i<nStartPos.length;i++) &.+[~2
{ M`KrB5a+6
fileSplitterFetch = new FileSplitterFetch(siteInfoBean.getSSiteURL(), ()(@Qcc
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(), C1|e1
nStartPos,nEndPos,i); _1dG!!L_
Utility.log("Thread " + i + " , nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); Yiu)0\ o
fileSplitterFetch.start(); Q9 kKk
} A`=ESz
// fileSplitterFetch[nPos.length-1] = new FileSplitterFetch(siteInfoBean.getSSiteURL(), 27E6S)zv
siteInfoBean.getSFilePath() + File.separator + siteInfoBean.getSFileName(),nPos[nPos.length-1],nFileLength,nPos.length-1); +fAAkO*GP
// Utility.log("Thread " + (nPos.length-1) + " , nStartPos = " + nPos[nPos.length-1] + ", .
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nEndPos = " + nFileLength); ).N }x^
// fileSplitterFetch[nPos.length-1].start(); TpZ) wC
8:L%-
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//等待子线程结束 @*q\$Eg}2
//int count = 0; }o=R7n%
//是否结束while循环 Gc4N)oq)}b
boolean breakWhile = false; =@binTC4
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while(!bStop) 1F/`*z
{ gUL`)t\} *
write_nPos(); ePIBg(
Utility.sleep(500); =a?l@dI]
breakWhile = true; !o:RIwS3
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for(int i=0;i<nStartPos.length;i++) K,|Gtaa~
{ s3_i5,y
if(!fileSplitterFetch.bDownOver) Z=R>7~H
{ (~}yt .7K
breakWhile = false; =d7 lrx+z
break; zBB4lC{q
} "KW\:uc /
} QCa$<~c
if(breakWhile) >efYpd#^
break; //Hn[wEOh
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//count++; f&8&UL>e`
//if(count>4) 5p94b*l
// siteStop(); ilayU
} _9#4
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System.err.println("文件下载结束!"); 3UD_2[aqN(
} I@+dE V`Lf
catch(Exception e){e.printStackTrace ();} /Kwo^Q{
} S=krF yFw
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//获得文件长度
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public long getFileSize() 9!_`HE+(XJ
{ sA3 4`ZAa
int nFileLength = -1; ' "~|L>F%G
try{ hP`3Ao
URL url = new URL(siteInfoBean.getSSiteURL());
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HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); G5"UhnOD'
httpConnection.setRequestProperty("User-Agent","NetFox"); e]uk}#4
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int responseCode=httpConnection.getResponseCode(); yew9bn0a=
if(responseCode>=400) B\KvKT|\
{ , YTuZS
processErrorCode(responseCode); `Kpn@Xg
return -2; //-2 represent access is error Sw%=/ g
} SL pd~ZC?
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String sHeader; <3O>
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for(int i=1;;i++) %$`pD
I )
{ IZi1N
//DataInputStream in = new DataInputStream(httpConnection.getInputStream ()); Xv]O1 f cI
//Utility.log(in.readLine()); fk#SD "iJ
sHeader=httpConnection.getHeaderFieldKey(i); 2o6KVQ
if(sHeader!=null) ^Ml)g=Fq
{ ;5PXPpJ
if(sHeader.equals("Content-Length")) ::9U5E;!
{ +QtK
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nFileLength = Integer.parseInt(httpConnection.getHeaderField(sHeader)); ojT TYR{
break; ~U~KUL|
} _?Rprmjx}
} Y71io^td~j
else *]W{83rXQ
break; w/~,mzM"
} #If}P$!
} dF5EIPl;J
catch(IOException e){e.printStackTrace ();} TW{.qed8^
catch(Exception e){e.printStackTrace ();} HB||'gIC
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Utility.log(nFileLength); c,!Ijn\;(
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return nFileLength; +]Po!bN@@
} ht!o_0{~
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//保存下载信息(文件指针位置) ^UEI`_HO0
private void write_nPos() t}c ymX~
{ BC Jo/m
try{ fp.,MIS
output = new DataOutputStream(new FileOutputStream(tmpFile)); rNO'0Ck=
output.writeInt(nStartPos.length); V~+Oil6sa
for(int i=0;i<nStartPos.length;i++) Q\<C9%a
{ ,gUSW
// output.writeLong(nPos); &UEr4RK;I
output.writeLong(fileSplitterFetch.nStartPos); c] $X+
output.writeLong(fileSplitterFetch.nEndPos); }XX)U_x
} CDK0 $W n
output.close(); ?y>P
} vYKKv%LE
catch(IOException e){e.printStackTrace ();} U rm&4&y
catch(Exception e){e.printStackTrace ();} [v^T]L
} CJz2.yd
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//读取保存的下载信息(文件指针位置) Cf91#%:cN
private void read_nPos() AT<K>&)
{ M`q >i B
try{ z4HIDb
DataInputStream input = new DataInputStream(new FileInputStream(tmpFile)); eY-W5TgU
int nCount = input.readInt(); Xjw>Qws
nStartPos = new long[nCount]; d/v{I
nEndPos = new long[nCount];
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for(int i=0;i<nStartPos.length;i++) Mi%i_T^i
{ COH0aNp;
nStartPos = input.readLong(); IX$dDwY|O>
nEndPos = input.readLong(); -Ds}kdxw
} ='`z
input.close(); Y4_/G4C
} F@1~aeX-
catch(IOException e){e.printStackTrace ();} zq>pK_WG
catch(Exception e){e.printStackTrace ();} lG I1LUo
} Aq yR+
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private void processErrorCode(int nErrorCode) (+`pEDD{X
{ %YkJA:
System.err.println("Error Code : " + nErrorCode); {pH{SRM)B
} mKugb_d?
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//停止文件下载 Dq/_^a/1
public void siteStop() )a
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{ -*~= 4m<
bStop = true; |]1-ck!
for(int i=0;i<nStartPos.length;i++) ]P;uQ!
fileSplitterFetch.splitterStop();
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}
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} 9utiev~3
//负责部分文件的抓取 ![h+R@_(
**FileSplitterFetch.java {;4Y5kj
*/ )e(Rf!P{
package NetFox; UbNA|`H
jfP2n5X83
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import java.io.*; m\o<a|
import java.net.*; %X7R_>.
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public class FileSplitterFetch extends Thread { #?\$*@O
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String sURL; //File URL >L\$
long nStartPos; //File Snippet Start Position ,V1/(|[h
long nEndPos; //File Snippet End Position a8ya5EO
int nThreadID; //Thread's ID 0zQ"5e?qy
boolean bDownOver = false; //Downing is over U_i%@{
boolean bStop = false; //Stop identical K&Ner(/X`6
FileAccessI fileAccessI = null; //File Access interface Rah"La
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d` %8qLIW
public FileSplitterFetch(String sURL,String sName,long nStart,long nEnd,int id) throws IOException 1/X@~
{ r<VZEbm)
this.sURL = sURL; Oxo?\
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this.nStartPos = nStart; fFDI qX
this.nEndPos = nEnd; O'm><a>8
nThreadID = id; O<7Q>m
fileAccessI = new FileAccessI(sName,nStartPos);//定位 t"x
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} p4mi\~Q
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public void run() vUm#^/#I
{ 'D`O4TsP>
while(nStartPos < nEndPos && !bStop) 8X Jg
{ ).U\,@[A{
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try{ g_X-.3=2K
URL url = new URL(sURL); [.J&@96,b
HttpURLConnection httpConnection = (HttpURLConnection)url.openConnection (); wpgO09
httpConnection.setRequestProperty("User-Agent","NetFox"); _gU:!:}
String sProperty = "bytes="+nStartPos+"-"; 8Na.H::cZ
httpConnection.setRequestProperty("RANGE",sProperty); <;Q1u,Mc
Utility.log(sProperty); @Wgd(Ezd
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InputStream input = httpConnection.getInputStream(); [v47_ 5O
//logResponseHead(httpConnection); q^!_jMN5
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byte[] b = new byte[1024]; NSe Huk
int nRead; mj{B_3b5
while((nRead=input.read(b,0,1024)) > 0 && nStartPos < nEndPos && !bStop) mJ+M|#Ox
{ pH&*5=t}
nStartPos += fileAccessI.write(b,0,nRead); d*qb^C{'"
//if(nThreadID == 1) 7~b=G
// Utility.log("nStartPos = " + nStartPos + ", nEndPos = " + nEndPos); <PLQY
} #IJm*_J<
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Utility.log("Thread " + nThreadID + " is over!"); /{1s U}k-
bDownOver = true; yyPQ^{zD
//nPos = fileAccessI.write (b,0,nRead); *JnY0xP
} J?6.yL;
catch(Exception e){e.printStackTrace ();} 7Qdf#DG
} U
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} #jrtsv]
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//打印回应的头信息 v
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public void logResponseHead(HttpURLConnection con) HQp \0NC]
{ F}1h
for(int i=1;;i++) 7bV(eV
{ @jL](Mq|]
String header=con.getHeaderFieldKey(i); ;x<5F+b
if(header!=null) mJxr"cwHl
//responseHeaders.put(header,httpConnection.getHeaderField(header)); (vX)
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Utility.log(header+" : "+con.getHeaderField(header)); Zv]'9,cbk
else /esdtH$=
break; 6=cfr; BH2
} k8KRVXgx
} )Ehi8
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public void splitterStop() Q};n%&n&
{ fe!eZiE
bStop = true; '/OcJVSR
} @h&:xA56
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} 1Kjqs)p^
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/* ^C=dq(i=[
**FileAccess.java Vc[aNpE
*//文件访问(定位,写) r'J="^k{
package NetFox; O]4v\~@-j
import java.io.*; SFu]*II;{
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public class FileAccessI implements Serializable{ noNJ+0S
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//RandomAccessFile类用于在任意一个文件的特定位置上读/写字节 c,2OICj
RandomAccessFile oSavedFile; tJG+k)EE
long nPos; bO i-QD
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! k[JP+;
public FileAccessI() throws IOException *{_N*p\{
{ (ZPl~ZO
this("",0); <ni_78
} c;?J
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public FileAccessI(String sName,long nPos) throws IOException 0BwxPD#6bv
{ p4F%FS:`
oSavedFile = new RandomAccessFile(sName,"rw"); x H\!j
this.nPos = nPos; eJ*u]GH U
oSavedFile.seek(nPos); ZveNe~D7C
} `q9n`h1
8J#U=qYei
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public synchronized int write(byte[] b,int nStart,int nLen) ZaBmH|k
{ qzj.N$9]
int n = -1; yhkKakg,)
try{ o;9 G{Xj3@
oSavedFile.write(b,nStart,nLen); _/czH<
n = nLen; Y{Ff I+
} 9u6VN]divB
catch(IOException e) f, '*f:(
{ cR{F|0X
e.printStackTrace (); qyBC1an5,
} 'fs
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return n; csd9[=HW/Q
} eZoAy[
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} LOgFi%!6:
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/* }S$OE))u
**SiteInfoBean.java 7KHQ0
*/ \@Gcx}Y8h
package NetFox; ~,_@|,)
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public class SiteInfoBean { 2,Aw6h;
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private String sSiteURL; //Site's URL cyLl,OA
private String sFilePath; //Saved File's Path EJP] E)
private String sFileName; //Saved File's Name K5rra%a-7
private int nSplitter; //Count of Splited Downloading File cij8'("+!
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*;(^)Sj4Q
public SiteInfoBean() G!`PP
{//nSplitter的缺省值为5 FWB
*=.A9
//default value of nSplitter is 5 C;5`G
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this("","","",5); _s+G02/q1
} {{Qbu}/@
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public SiteInfoBean(String sURL,String sPath,String sName,int nSpiltter) hH9~.4+*`g
{ eZ$M#I=o
sSiteURL= sURL; Sgr. V)
sFilePath = sPath; ^D]J68)#a
sFileName = sName; t 9t
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this.nSplitter = nSpiltter; #1C]ZV] B
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} @U4hq7xzV2
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public String getSSiteURL() d&+0JI<
{ Ud Vf/PGx
return sSiteURL; [!>9K}z,=
} f ~*7hv\
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public void setSSiteURL(String value) 8{]nS8i
{ @ze2'56F}
sSiteURL = value; Q lA?dXQ
} 5HsF#
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public String getSFilePath() Fc80HK5R
{ dF09_nw
return sFilePath; J2 / 19'QE
} :\I*_00!
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public void setSFilePath(String value) <[D>[
{ |AacV
sFilePath = value; RJUIB
} .heU
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public String getSFileName() g1?9ge1
{ SB08-G2
return sFileName; o<iU;15
} 1<fW .Q)
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public void setSFileName(String value) )[cuYH>
{ &PH:J*?C}
sFileName = value; DRR)mQBb
} =E>P,"D
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public int getNSplitter() k0O5c[j
{ %LzARTX
return nSplitter; _yUYEq<`
} S 6_:\Q
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^
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public void setNSplitter(int nCount) QxA( *1
{ 83I 5n&)
nSplitter = nCount; %k32:qe
} #AB5}rPEI
} oPF]]Imu
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/* P$0c{B4I
**Utility.java iF Mf[qBg
*/ nT}Wx/aT
package NetFox; W7b
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p}h.2)PO
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public class Utility { \o/eF&
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public Utility() Dw7Xy}I/
{ \>pm (gF
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} A7%/sMv
'Etq;^H
//线程睡眠 :{ZwzJ
public static void sleep(int nSecond) Q!qD3<?5
{ *Cf!p\7!
try{ T@i*
F M
Thread.sleep(nSecond); NN=^4Xpc:
} 23i2yT
catch(Exception e) G`kz 0Vk
{ U|Gy 9"
e.printStackTrace (); PU,$YPrZ
} hmd3W`8D
} (AtyM?*
M-@X&bm,S
//日志 N)
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public static void log(String sMsg) 7L6L{~8
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{ A"&<$5Q
System.err.println(sMsg); CxjB9#
} MjQju@
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public static void log(int sMsg) &Q;sbI}
{ dd<l;4(
System.err.println(sMsg); z)U7
} fV5$[CL1
} qD ?`Yd
@-L]mLY
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/* <7F-WR/2n
**TestMethod.java |k90aQO
*/ -5 PVWL\
package NetFox; w6cl3J&
^7gKs2M
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public class TestMethod { vVw@^7U
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public TestMethod() oo2d,
{ ///xx/weblogic60b2_win.exe K&`1{,
try{ 4Ex&A