cao.java

这个是我们做土地局的一个项目。感觉不错。欢迎下载

package huayi.gg.cao;

import java.sql.*;
import java.io.*;
import java.util.*;
import javax.naming.*;

/**
* 从连接池中取得一个空闲的数据库连接
* @return Connection
* @exception Exception
*/
public class cao{


String houzhui=null;
File f1;
RandomAccessFile random;
FileOutputStream o;
String secondLine;
int second=1;
int position;
String fileName=null;
byte b[]=new byte[10000];
int n;


public cao(){

}

public String getName(InputStream in,String tempFileName)
{

try
{
  f1=new File("C:/",tempFileName);
  o=new FileOutputStream(f1);
  while((n=in.read(b))!=-1){o.write(b,0,n);}
  o.close();
  in.close();
  random=new RandomAccessFile(f1,"r");
  secondLine=null;
  while(second<=2)
  {secondLine=random.readLine();second++;}
  position=secondLine.lastIndexOf('\\');
  fileName=secondLine.substring(position+1,(secondLine.length()-1));
  int position0=fileName.lastIndexOf('.');
  houzhui=fileName.substring((position0+1),fileName.length()); 
 return fileName;
}
catch(IOException e){}
  return fileName;  
}
public String file()
{return fileName;}
//文件上传
public void transfer(String sql)
{
try
{
  random.seek(0);
  long forthEndPosition=0;
  int forth=1;
  while((n=random.readByte())!=-1&&(forth<=4))
   {
    if(n=='\n')
    {
	    forthEndPosition=random.getFilePointer();
        forth++;
	}
   }
  File f2=new File("C:/",fileName);
  RandomAccessFile random2=new RandomAccessFile(f2,"rw");
  random.seek(random.length());
  long endPosition=random.getFilePointer();
  long mark=endPosition;
  int j=1;
  while((mark>=0)&&(j<=6))
 {
   mark--;
   random.seek(mark);
   n=random.readByte();
   if(n=='\n')
   {endPosition=random.getFilePointer();j++;}
 }
  random.seek(forthEndPosition);
  long startPoint=random.getFilePointer();
  while(startPoint<(endPosition-1))
 {
   n=random.readByte();
   random2.write(n);
   startPoint=random.getFilePointer();
 }
 random2.close();
 random.close();
 f1.delete();
//f2.delete();
   
}
catch(IOException e){}
}

    
}