STREAMING 을 이용해서 BLOB 에 BINARY DATA 를 저장하는 SAMPLE

Question

제품 : JDBC
작성날짜 : 2003-08-07
STREAMING 을 이용해서 BLOB 에 BINARY DATA 를 저장하는 SAMPLE
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PURPOSE
STREAMING 을 이용해서 BLOB COLUMN 에 BINARY DATA 를 저장하는
방법을 SAMPLE 을 통해 알아 봅니다.
Explanation
다음 예제는 먼저 blob column 이 들어 있는
MEDIA_STORE 라는 table 을 만들고 그 table 안에
e:\temp\mytest.avi 파일을 insert 하는 내용입니다.
Example
다음을 실행하기 전에 다음명령으로 예제 TABLE 을 생성해야
합니다.
CREATE TABLE MEDIA_STORE ( MNAME VARCHAR2(25),
MTYPE VARCHAR2(15),
MDATA BLOB );
OracleBLOB.java 소스
import java.io.*;
import java.sql.*;
import oracle.sql.*;
import oracle.jdbc.driver.*;
public class OracleBLOB extends Object
Connection conn;
public OracleBLOB()
private void openSession() throws SQLException, Exception
try {
//Register the Oracle JDBC Driver.
Class.forName("oracle.jdbc.driver.OracleDriver");
//DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
//Open a session.
conn = DriverManager.getConnection("jdbc:oracle:thin:@krint-5.kr.oracle.com:1525:ora920","scott","tiger");
} catch(SQLException e) {
e.printStackTrace();
private void insertBLOB() throws SQLException, Exception
BLOB blob;
File binFile;
FileInputStream instream;
OutputStream outstream;
try {
//Set AutoCommit to OFF - required by BLOB locking mechanism.
conn.setAutoCommit(false);
//Create a statement.
Statement stmt = conn.createStatement ();
//Insert an empty BLOB locator.
stmt.execute("INSERT INTO MEDIA_STORE VALUES('THX','DVD-VOB',empty_blob())");
//Execute the query and lock the BLOB row.
ResultSet rset = stmt.executeQuery ("SELECT MDATA FROM MEDIA_STORE WHERE MNAME='THX' FOR UPDATE");
rset.next();
//Get the BLOB locator.
blob = ((OracleResultSet)rset).getBLOB(1);
//Get the large binary media file.
binFile = new File("e:\\temp\\mytest.avi");
instream = new FileInputStream(binFile);
//Insert to the BLOB from an output stream.
outstream = blob.getBinaryOutputStream();
//Read the input stream and write the output stream by chunks.
byte[] chunk = new byte[blob.getChunkSize()];
int i=-1;
System.out.println("Loading");
while((i = instream.read(chunk))!=-1)
{ outstream.write(chunk,0,i); System.out.print('.'); }
//Close the input and output stream.
instream.close();
outstream.close();
//Close the statement.
stmt.close();
} catch(SQLException e) {
e.printStackTrace();
private void closeSession() throws SQLException, Exception
try {
//Close the session.
conn.close();
} catch(SQLException e) {
e.printStackTrace();
public static void main(String[] args) throws SQLException, Exception
OracleBLOB app = new OracleBLOB();
app.openSession();
app.insertBLOB();
app.closeSession();
실행결과 :
E:\temp>java OracleBLOB
Loading
E:\temp>
Reference Documents
Note:95816.1

Answer 1