CREATE TABLE imagen(nombre VARCHAR(100), tipo VARCHAR(10), tamano BIGINT, pixel BLOB(10M))

@RequestMapping(path = "/form", method = RequestMethod.POST)
public String handleFormUpload(
        @RequestParam("file") MultipartFile file) throws IOException {

    if (!file.isEmpty()) {

        String sql = "INSERT INTO imagen (nombre, tipo, tamano, pixel) VALUES(?, ?, ?, ?)";

        String nombre = file.getOriginalFilename();
        String tipo   = file.getContentType();
        Long tamano   = file.getSize();
        byte[] pixel  = file.getBytes();

        jdbc.update(sql, nombre, tipo, tamano, pixel);
    }

    return "redirect:/";
}

$sql = "select link from tabla";
$result = $conn->query($sql);

if ($result->num_rows > 0) {

    while($row = $result->fetch_assoc()) {
        echo "<img src='".$row["link"]."' >";
    }
}
$conn->close();

public static void main(String[] args) throws Exception, IOException, SQLException {
    Class.forName("org.gjt.mm.mysql.Driver");
    Connection conn = DriverManager.getConnection("jdbc:mysql://localhost/databaseName", "usuario", "password");
    String sqlQuery = "insert into tu_tabla(campo_foto) values ( ?)";

    FileInputStream fis = null;
    PreparedStatement ps = null;
    try {
      conn.setAutoCommit(false);
      File archivo = new File("myPhoto.png");
      fis = new FileInputStream(archivo);
      ps = conn.prepareStatement(sqlQuery);
      ps.setBinaryStream(1, fis, (int) file.length());
      ps.executeUpdate();
      conn.commit();
    } finally {
      ps.close();
      fis.close();
    }
  }