package com.hbky.bo;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import oracle.sql.BLOB;
public class FilmBo ...{
Connection con;
public FilmBo()...{
try ...{
Class.forName("oracle.jdbc.driver.OracleDriver");
} catch (ClassNotFoundException e) ...{
e.printStackTrace();
}
}
/** *//**
* 取出blob试验数据
*
*/
public void getBlob(BufferedOutputStream out)...{
BufferedInputStream in = null;
try ...{
con=DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:zhanglei", "scott","tiger");
con.setAutoCommit(false);
PreparedStatement pre = con.prepareStatement("select fname,fblob from ftp_test where fid = ?");
pre.setString(1,"00001");
ResultSet set = pre.executeQuery();
if(set.next())...{
in = new BufferedInputStream(set.getBlob("fblob").getBinaryStream());
// BufferedOutputStream out = new BufferedOutputStream(new FileOutputStream(new File("c:\"+set.getString("fname"))));
byte[] buffer = new byte[1024];
int i = 0;
while((i = in.read(buffer)) != -1)...{
out.write(buffer,0,i);
}
out.flush();
System.out.println("******************************");
in.close();
out.close();
con.commit();
}
pre.close();
con.close();
}
// catch (FileNotFoundException e) {
// try {
// con.rollback();
// } catch (SQLException e1) {
// e1.printStackTrace();
// }
// e.printStackTrace();
// }
catch (SQLException e) ...{
try ...{
con.rollback();
} catch (SQLException e1) ...{
e1.printStackTrace();
}
e.printStackTrace();
} catch (IOException e) ...{
try ...{
con.rollback();
} catch (SQLException e1) ...{
e1.printStackTrace();
}
e.printStackTrace();
}
}
/** *//**
* 插入blob试验数据
*/
public void insertBlob()...{
try ...{
Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:zhanglei", "scott", "tiger");
con.setAutoCommit(false);
Statement st = con.createStatement();
st.executeUpdate("insert into ftp_test(fid,fblob,fname) values('00002',empty_blob(),'test.jpg')");
ResultSet rs = st.executeQuery("select fblob from ftp_test where fid='00002' for update");
if (rs.next()) ...{
BLOB blob = (BLOB) rs.getBlob(1);
OutputStream outStream = blob.getBinaryOutputStream();
File file = new File("F:\pic\CIMG4386.jpg");
InputStream fin = new FileInputStream(file);
byte[] b = new byte[blob.getBufferSize()];
int len = 0;
while ( (len = fin.read(b)) != -1) ...{
outStream.write(b, 0, len);
}
fin.close();
outStream.flush();
outStream.close();
con.commit();
con.close();
}
} catch (FileNotFoundException e) ...{
try ...{
con.rollback();
} catch (SQLException e1) ...{
e1.printStackTrace();
}
e.printStackTrace();
} catch (SQLException e) ...{
try ...{
con.rollback();
} catch (SQLException e1) ...{
e1.printStackTrace();
}
e.printStackTrace();
} catch (IOException e) ...{
try ...{
con.rollback();
} catch (SQLException e1) ...{
e1.printStackTrace();
}
e.printStackTrace();
}
}
}
posted on 2007-10-27 20:33
zjw_albert 阅读(982)
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