Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package img; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import java.sql.Blob; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; import org.apache.poi.hssf.usermodel.HSSFWorkbook; import org.apache.poi.ss.usermodel.Sheet; import org.apache.poi.ss.usermodel.Workbook; import org.apache.poi.ss.usermodel.WorkbookFactory; import org.apache.poi.ss.usermodel.Cell; import org.apache.poi.ss.usermodel.Row; /** * * @author nk91008743 */ public class Img { final static String UPLOAD_PATH = "C:/Users/nk91008743/Desktop/excels/"; /** * @param args the command line arguments */ public static void main(String[] args) throws Exception { HSSFWorkbook result = new HSSFWorkbook(); File dir = new File(UPLOAD_PATH); File[] directoryListing = dir.listFiles(); Workbook wb = WorkbookFactory.create(new File(UPLOAD_PATH + "/T5UBF.XLSX")); Sheet sheet = wb.getSheetAt(0); System.out.println(sheet.getProtect()); Row row = sheet.getRow(0); Cell cell = row.getCell(0); System.out.println(cell.getStringCellValue()); /*if (directoryListing != null) { for (File child : directoryListing) { System.out.println("Reading from: "+child.getAbsolutePath()); Workbook wb = WorkbookFactory.create(child); Sheet sheet = wb.getSheetAt(0); } }*/ FileOutputStream out = new FileOutputStream(new File("C:/Users/nk91008743/Desktop/result.xls")); result.write(out); out.close(); } public static void generatePics() throws Exception { Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); //String dbURL = "jdbc:oracle:thin:@oradevmw"; //Class.forName("oracle.jdbc.driver.OracleDriver"); Connection conn = null; Statement stmt = null; try { //conn = DriverManager.getConnection(jdbc:oracle:thin:@oradevmw, "serik", "1"); conn = DriverManager .getConnection("jdbc:sqlserver://kzatsrv0017;user=SAP;password=123;database=APACS36ATEW"); System.out.println("Connection established"); stmt = conn.createStatement(); ResultSet rs = stmt.executeQuery("SELECT * FROM tcardimages where not fimg is null"); while (rs.next()) { Blob ph = rs.getBlob("fimg"); InputStream in = ph.getBinaryStream(); ByteArrayOutputStream out = new ByteArrayOutputStream(); OutputStream outputStream = new FileOutputStream( "C:/Users/nk91008743/Desktop/test/" + rs.getInt("fid") + ".jpg"); int length = (int) ph.length(); int bufferSize = 1024; byte[] buffer = new byte[bufferSize]; while ((length = in.read(buffer)) != -1) { //System.out.println("writing " + length + " bytes"); out.write(buffer, 0, length); } out.writeTo(outputStream); in.close(); } if (rs.next()) { System.out.println(rs.getString("name")); } } catch (Exception e) { e.printStackTrace(); } finally { if (stmt != null) try { stmt.close(); } catch (Exception e) { } if (conn != null) try { conn.close(); } catch (Exception e) { } } } }