DemoDisplayBlobFromDatabase.java Source code

Introduction

Here is the source code for DemoDisplayBlobFromDatabase.java

Source

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

import javax.swing.JPanel;

public class DemoDisplayBlobFromDatabase extends JPanel {
    public static Connection getConnection() throws Exception {
        String driver = "oracle.jdbc.driver.OracleDriver";
        String url = "jdbc:oracle:thin:@localhost:1521:databaseName";
        String username = "name";
        String password = "password";
        Class.forName(driver);
        Connection conn = DriverManager.getConnection(url, username, password);
        return conn;
    }

    public static void main(String args[]) throws Exception {
        Connection conn = null;
        ResultSet rs = null;
        PreparedStatement pstmt = null;
        String query = "SELECT blob_column FROM blob_table WHERE id = ?";

        try {
            conn = getConnection();
            pstmt = conn.prepareStatement(query);
            pstmt.setString(1, "0001");
            rs = pstmt.executeQuery();
            rs.next();
            // materialize binary data onto client
            java.sql.Blob blob = rs.getBlob(1);
        } finally {
            rs.close();
            pstmt.close();
            conn.close();
        }
    }
}