文件管理系统实现Word格式.docx
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if（name.getBytes（）.length>
=6）{
this.name=name.substring（0,6）;
}
else{
while（name.getBytes（）.length<
6）{
name+='
\u0000'
;
}
this.name=name;
//this.name=name;
}
publicStringgetName（）{
returnname;
publicvoidsetName（Stringname）{
this.name=name;
publicintgetType（）{
returntype;
publicvoidsetType（inttype）{
this.type=type;
publicintgetSize（）{
returnsize;
publicvoidsetSize（intsize）{
this.size=size;
publicStringgetCal（）{
returncal;
publicvoidsetCal（Stringcal）{
this.cal=cal;
publicintgetFirstblock（）{
returnfirstblock;
publicvoidsetFirstblock（intfirstblock）{
this.firstblock=firstblock;
}
importjava.io.BufferedReader;
importjava.io.DataOutputStream;
importjava.io.File;
importjava.io.FileInputStream;
importjava.io.FileNotFoundException;
importjava.io.FileOutputStream;
importjava.io.IOException;
importjava.io.InputStreamReader;
importjava.io.ObjectOutputStream;
importjava.io.RandomAccessFile;
classOS{
staticBufferedReaderbr=newBufferedReader（newInputStreamReader（System.in））;
staticStringcurrent_directory="
"
finalstaticintEMPTY_BLOCK=0xFFFE;
finalstaticintLAST_BLOCK=0xFFFF;
finalstaticintBLOCK_SIZE=1024;
staticintfirstblock=0;
staticintblockcount;
staticStringfilename="
staticRandomAccessFileraf1;
staticObjectOutputStreamoos;
staticFileOutputStreamfos;
staticDataOutputStreamdos;
staticFilefile;
staticintf=0;
//fat表中的块号
staticintblock=0;
//写块号与mdmkFCB写入块中
staticintblockno=0;
//读块号
staticinttimes=0;
publicstaticvoidmain（String[]args）throwsException{
while（true）{
Stringcmd="
System.out.print（current_directory）;
System.out.print（"
$:
）;
try{
cmd=br.readLine（）;
if（（cmd.indexOf（"
exit"
））!
=-1）{
break;
}
elseif（cmd.indexOf（"
dir"
）!
dir（cmd）;
md"
md（cmd）;
cd"
cd（cmd）;
rd"
rd（cmd）;
mk"
mk（cmd）;
del"
del（cmd）;
format"
format（cmd）;
fat"
fat（）;
info"
Stringstr=cmd.substring（5）;
inti=Integer.parseInt（str）;
info（i）;
help"
help（）;
exit（）;
else{
System.out.println（"
errorcommand!
}catch（Exceptione）{
System.out.println（e）;
publicstaticvoiddir（Stringcmd）throwsException{
inti=current_directory.length（）;
Stringstr="
if（i>
0）{
str=current_directory.substring（0,i-1）;
StringBuffersb=newStringBuffer（str）;
intj=sb.lastIndexOf（"
/"
Strings1=str.substring（j+1）;
//System.out.println（"
blockno========"
+blockno）;
raf1=newRandomAccessFile（file,"
r"
raf1.seek（blockno*1024+blockcount*2）;
//System.out.println（"
-------------"
+（blockno*1024+16））;
byte[]b=newbyte[6];
byte[]b1=newbyte[14];
intByteCount=0;
raf1.read（b）;
Strings2=newString（b）;
if（ByteCount!
=1024）{
//System.out.println（judge（b））;
//System.out.println（s2）;
if（!
judge（b））{
inttype=raf1.readInt（）;
intsize=raf1.readInt（）;
//System.out.println（"
size======"
+size）;
raf1.read（b1）;
Strings3=newString（b1）;
intfirstblock=raf1.readInt（）;
//System.out.println（"
tyep======"
+type）;
firstblock========"
+firstblock）;
System.out.println（s3+"
"
+"
<
DIR>
+size+"
+s2）;
ByteCount======"
+ByteCount）;
raf1.skipBytes（26）;
ByteCount+=32;
else{
break;
publicstaticbooleanjudge（byte[]b）{
for（inti=0;
i<
b.length;
i++）{
if（b[i]!
=0）{
returnfalse;
continue;
returntrue;
publicstaticvoidmd（Stringcmd）{
Stringstr=cmd.substring（3）;
try{
//System.out.println（"
strr==========="
+str）;
byte[]by={（byte）0xFFFF};
raf1=newRandomAccessFile（file,"
rw"
raf1.seek（blockno*1024+block）;
//System.out.println（!
sameName（str,blockno*1024+block））;
//intn=blockno*1024+16;
if（!
sameName（str,blockno*1024+blockcount*2））{
//System.out.println（"
blcok====="
+（blockno*1024+block））;
block+=32;
FCBfcb=newFCB（str）;
Calendarcal=Calendar.getInstance（）;
fcb.type=1;
fcb.size=1024;
Stringstr1=cal.get（Calendar.YEAR）+"
+（cal.get（Calendar.MONTH）+1）+"
+cal.get（Calendar.DAY_OF_MONTH）
+"
+cal.get（Calendar.HOUR_OF_DAY）+"
+cal.get（Calendar.MINUTE）+"
-"
+cal.get（Calendar.SECOND）;
if（str1.length（）>
14）{
str1=str1.substring（0,14）;
while（str1.getBytes（）.length<
str1+='
//System.out.println（str1.length（））;
fcb.cal=str1;
fcb.firstblock=firstblock;
//System.out.println（"
first======"
++firstblock;
//System.out.println（"
sencond++=="
//oos.writeObject（f）;
raf1.write（fcb.getName（）.getBytes（））;
raf1.writeInt（fcb.getType（））;
raf1.writeInt（fcb.getSize（））;
//System.out.println（"
fcb.getCal（）.getBytes（）.length"
+fcb.getCal（）.getBytes（）.length）;
raf1.write（fcb.getCal（）.getBytes（））;
//System.out.println（"
fcb.getCal（）.getBytes（）====="
raf1.writeInt（fcb.getFirstblock（））;
++times;
raf1.seek（f）;
raf1.write（by）;
raf1.write（by）;
f+=2;
//System.out.println（f）;
raf1.close（）;
System.out.println（"
创建成功"
此文件已经存在，请换个名字创建"
return;
}catch（FileNotFoundExceptione）{
//TODOAuto-generatedcatchblock
e.printStackTrace（）;
}catch（IOExceptione）{
publicstaticbooleansameName（Stringstr,intn）{
RandomAccessFileraf2=newRandomAccessFile（file,"
intByteCount=0;
byte[]b=newbyte[6];
raf2.seek（n）;
while（true）{
raf2.read（b）;
Strings=newString（b）;
str========"
s======="
+s）;
//System.out.println（str+"
="
+str.length（））;
//System.out.println（s+"
="
+s.length（））;
BYcoutn========="
//System.out.println（compare（str,s））;
if（ByteCount!
if（compare（str,s））{
returntrue;
}
else{
raf2.skipBytes（26）;
ByteCount+=32;
returnfalse;
returnfalse;
publicstaticvoidcd（Stringcmd）throwsException{
raf1=newRandomAccessFile（file,"
//raf1.skipBytes（blockcount*2-1）;
//Strings1="
Strings4="
if（str.equals（"
）||str.equals（"
.."
））{
blockno=0;
current_directory="
block=findBlock（）*32+blockcount*2;
//System.out.println（block）;
times=0;
return;
inta=blockno*1024+blockcount*2;
raf1.seek（a）;
blockcount====="
+blockcount*2）;
Strings1=newString（b）;
if（s1.indexOf（str）!
raf1.skipBytes（22）;
intc=raf1.readInt（）;
blockno=c;
blockno======="
current_directory+=str;
current_directory+="
block-=times*32;
times=0;
helloiaminhere"
//raf1.seek（blockcount*2+32）;
raf1.skipBytes（26）;
publicstaticintfindBlock（）throwsException{
RandomAccessFileraf2=newRandomAccessFile（file,"
raf2.seek（blockcount*2）;
intblock1=0;
raf2.read（b）;
Stringstr=newString（b）;
//System.out.println（"
str="
block1="
+block1）;
//System.out.println（judge（b））;
raf2.skipBytes（26）;
++block1;
returnblock1;
publicstaticvoidrd（Stringcmd）throwsException{
raf1=newRandomAccessFile（file,"
byte[]b2={0};
//inttime=0;
//System.out.println（blockno*1024+16）;
//System.out.println（s2.indexOf（str）!
=-1）;
if（s2.indexOf（str）!
//if（comp
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