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| import java.awt.image.RenderedImage; import java.awt.image.renderable.ParameterBlock; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.sql.Timestamp; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.Enumeration; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; import java.util.zip.ZipEntry; import java.util.zip.ZipFile; import java.util.zip.ZipInputStream; import java.util.zip.ZipOutputStream;
import javax.media.jai.InterpolationNearest; import javax.media.jai.JAI; import javax.media.jai.PlanarImage;
import org.apache.log4j.Logger;
import com.sun.media.jai.codec.ByteArraySeekableStream; import com.sun.media.jai.codec.ImageCodec; import com.sun.media.jai.codec.ImageDecoder; import com.sun.media.jai.codec.ImageEncoder; import com.sun.media.jai.codec.JPEGEncodeParam; import com.sun.media.jai.codec.SeekableStream; import com.sun.media.jai.codec.TIFFDirectory;
public class IdepUtil { private static Logger logger = Logger.getLogger(IdepUtil.class); static final int BUFFER = 2048; public IdepUtil(){} public static String serializer(Object ob) throws Exception{ ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream); objectOutputStream.writeObject(ob); String serStr = byteArrayOutputStream.toString("ISO-8859-1"); serStr = java.net.URLEncoder.encode(serStr, "UTF-8"); objectOutputStream.close(); byteArrayOutputStream.close(); return serStr; }
public static Object unSerializer(String xml) throws Exception{ String redStr = java.net.URLDecoder.decode(xml, "UTF-8"); ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(redStr.getBytes("ISO-8859-1")); ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream); Object ob = objectInputStream.readObject(); objectInputStream.close(); byteArrayInputStream.close(); return ob; } @SuppressWarnings("unchecked") public static Map<String,String> zipSerializer(String zipPath) throws Exception{ File file = new File(zipPath); ZipFile zip = new ZipFile(file); Enumeration<ZipEntry> entries = (Enumeration<ZipEntry>)zip.entries(); Map<String,String> map = new HashMap<String,String>(); while(entries.hasMoreElements()){ ZipEntry entry = entries.nextElement(); String entryName = entry.getName(); String newStr = entryName.replaceAll("^(0+)", ""); String regEx="[^0-9]"; Pattern p = Pattern.compile(regEx); Matcher m = p.matcher(newStr); String finName = m.replaceAll("").trim()+".tif"; InputStream inputStream = zip.getInputStream(entry); ByteArrayOutputStream out=new ByteArrayOutputStream(); byte[] buffer=new byte[1024*4]; int n=0; while ( (n=inputStream.read(buffer)) !=-1) { out.write(buffer,0,n); }
byte[] b = tifToJpg(out.toByteArray());
String s = byte2hex(b); map.put(finName, s); out.close(); inputStream.close();
} return map; }
public static byte[] zipTifToJpg(String zipPath) throws Exception{ File file = new File(zipPath); ZipFile zip = new ZipFile(file); Enumeration<ZipEntry> entries = (Enumeration<ZipEntry>)zip.entries(); List<byte[]> list = new ArrayList<byte[]>(); while(entries.hasMoreElements()){ ZipEntry entry = entries.nextElement(); String entryName = entry.getName(); System.out.println("entryName===="+entryName); InputStream inputStream = zip.getInputStream(entry); ByteArrayOutputStream out=new ByteArrayOutputStream(); byte[] buffer=new byte[1024*4]; int n=0; while ( (n=inputStream.read(buffer)) !=-1) { out.write(buffer,0,n); }
out.flush(); byte[] b = tiffToPng(out.toByteArray()); list.add(b); out.close(); inputStream.close();
} return toZip(list); }
public static byte[] toZip(List<byte[]> list) throws IOException { logger.info("开始将tif压缩成zip"); ByteArrayOutputStream out=new ByteArrayOutputStream(); ZipOutputStream zo = new ZipOutputStream(out); byte[] b = null; if(list!=null&&list.size()>0){ for(int i=0; i<list.size(); i++){ zo.putNextEntry(new ZipEntry(i+"")); zo.write(list.get(i)); zo.flush(); } zo.close(); b = out.toByteArray(); } out.close(); logger.info("结束将tif压缩成zip"); return b; }
public static byte[] tiffToPng(byte[] imgData) throws Exception { byte[] rev = null; int TAG_COMPRESSION = 259; int TAG_JPEG_INTERCHANGE_FORMAT = 513; int COMP_JPEG_OLD = 6;
SeekableStream stream = new ByteArraySeekableStream(imgData); TIFFDirectory tdir = new TIFFDirectory(stream, 0); int compression = tdir.getField(TAG_COMPRESSION).getAsInt(0);
String decoder2use = "tiff"; boolean needResize = false; if (COMP_JPEG_OLD == compression) { stream.seek(tdir.getField(TAG_JPEG_INTERCHANGE_FORMAT).getAsLong(0)); decoder2use = "jpeg"; needResize = true; }
ImageDecoder dec = ImageCodec.createImageDecoder(decoder2use, stream, null); RenderedImage img = dec.decodeAsRenderedImage();
if (needResize) { ParameterBlock params = new ParameterBlock(); params.addSource(img); params.add(0.35F); params.add(0.35F); params.add(0.0F); params.add(0.0F); params.add(new InterpolationNearest()); img = JAI.create("scale", params, null); } ByteArrayOutputStream fileOut=new ByteArrayOutputStream(); ImageEncoder pngEncoder = ImageCodec.createImageEncoder("png", fileOut, null); pngEncoder.encode(img); stream.close(); rev = fileOut.toByteArray(); fileOut.close(); return rev; } public static byte[] tifToJpg(byte[] b) throws IOException{ SeekableStream stream = new ByteArraySeekableStream(b); PlanarImage in = JAI.create("stream", stream);
ByteArrayOutputStream os = new ByteArrayOutputStream(); JPEGEncodeParam param = new JPEGEncodeParam(); byte[] ret = null; ImageEncoder enc = ImageCodec.createImageEncoder("JPEG", os, param); try { enc.encode(in); os.flush(); ret = os.toByteArray(); os.close(); stream.close(); } catch (IOException e) { e.printStackTrace(); } return ret; } private static String byte2hex(byte[] b){ StringBuffer sb = new StringBuffer(); String stmp = ""; for (int n = 0; n < b.length; n++) { stmp = Integer.toHexString(b[n] & 0XFF); if (stmp.length() == 1){ sb.append("0" + stmp); }else{ sb.append(stmp); } } return sb.toString(); }
private static int unzip(byte[] bzip, String outputDirectory) throws Exception { ByteArrayInputStream s = new ByteArrayInputStream(bzip); ZipInputStream inputStream = new ZipInputStream(s); BufferedInputStream Bin=new BufferedInputStream(inputStream); int i=0; ZipEntry zipEntry = null; FileOutputStream outputStream = null; try { while ((zipEntry = inputStream.getNextEntry()) != null) { if (zipEntry.isDirectory()) { String name = zipEntry.getName(); name = name.substring(0, name.length() - 1); File file = new File(outputDirectory + File.separator + name); file.mkdir(); } else { File file = new File(outputDirectory + File.separator + i+".jpg"); file.createNewFile(); outputStream = new FileOutputStream(file); BufferedOutputStream Bout=new BufferedOutputStream(outputStream); int b; while ((b = Bin.read()) != -1) { Bout.write(b); } outputStream.flush(); Bout.flush(); Bout.close(); outputStream.close(); } i++; } } catch (IOException ex) { } finally { Bin.close(); inputStream.close(); s.close(); } return i; }
private byte[] hex2byte(String str) { if (str == null) return null; str = str.trim(); int len = str.length(); if (len == 0 || len % 2 == 1) return null; byte[] b = new byte[len / 2]; try { for (int i = 0; i < str.length(); i += 2) { b[i / 2] = (byte) Integer.decode("0X" + str.substring(i, i + 2)).intValue(); } return b; } catch (Exception e) { return null; } }
public static java.lang.String format2Date(Date date) throws ParseException { java.lang.String d = null; try { d =new SimpleDateFormat("yyyyMMdd").format(date); } catch (Exception e) { try { d = new SimpleDateFormat("yyyyMM").format(date); } catch (Exception e1) { d = new SimpleDateFormat("yyyy").format(date); } } return d; } }
}
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