In this Section,we will insert blob data(image) in Mysql database table using JSP code.
In this Section,we will insert blob data(image) in Mysql database table using JSP code.In this Section, we will insert blob data(image) in Mysql database table using JSP code.
A Blob stores a binary large object in the database table's row. Blob object contains a logical pointer which points to the Blob data, data is not directly stored in the row of the database table. Blob object is valid for the duration of the transaction. The "getBlob()" and "setBlob()" method of "ResultSet" ,"CallableStatement", and "PreparedStatement" interface , is used for accessing Blob value.
The Method defined in " java.sql.Blob " interface is as follows--
Return Type Method
Description InputStream getBinaryStream() Retrieves the blob value designated by this blob value as a stream byte[] getBytes(long pos, int length) Retrieve all or part of the blob value that this blob represents as an array of bytes. long length() Returns the no of bytes in the Blob value designated by this Blob object OutputStream setBinaryStream(long pos) Retrieves a stream that can be used to write to the Blob value int setBytes(long pos, byte[] bytes) Write the given array of bytes to the Blob value that this Blob object represent starting at position pos, and returns the no of bytes written void truncate(long len) Truncates the blob value that this blob object represents to be len bytes in len |
Blob data type can further be classified into four types--
EXAMPLE :
insertblob.jsp
<%@ page import="java.sql.*"%><%@ page import="java.io.*"%><% Connection con= null;ResultSet rs= null;PreparedStatement psmt= null;FileInputStream fis; String url= "jdbc:mysql://192.168.10.13:3306/ankdb"; try{Class.forName( "com.mysql.jdbc.Driver").newInstance();con=DriverManager.getConnection(url, "root","root");File image= new File("E:/ankit/ANKIT_JSP/obama.jpg");psmt=con.prepareStatement( "insert into inimage(name,city,image)"+"values(?,?,?)");psmt.setString(1, "Barack Obama");psmt.setString(2, "Wasington D.C.");fis= new FileInputStream(image);psmt.setBinaryStream(3, (InputStream)fis, ( int)(image.length())); int s = psmt.executeUpdate(); if(s>0) { %> <b><font color="Blue"> <% out.println("Image Uploaded successfully !"); %> </font></b> <%} else {out.println( "unsucessfull to upload image.");} con.close(); psmt.close(); } catch(Exception ex){out.println( "Error in connection : "+ex);} %> |
OUTPUT :
See also : Display Blob(Image) in Mysql table using JSP