/**
 * @title 读取图片文件将其转为二进制,再生成新的图片
 * 
 */
import java.awt.image.*;
import java.awt.*;
import java.io.*;
import java.sql.Blob;

import javax.imageio.*;

public class test {

 
 /**   
  *   转换byte数组为Image   
  *     
  *   @param   bytes   Image的bytes数据数组   
  *   @param   filename 为要生成新的文件名 
  *   @return   boolean   
  */
 public static boolean ByteToImage(byte[] b,String filename)
 {
  boolean bl=false;
  File binaryFile = new File("D:\\"+filename+".jpg"); 
  try {
   FileOutputStream fileOutStream = new FileOutputStream(binaryFile);
   for(int i=0;i<b.length;i++)
   {
    fileOutStream.write(b[i]);
   }
   fileOutStream.flush(); 
   bl=true;
  } catch (FileNotFoundException e) {
   // TODO 自动生成 catch 块
   e.printStackTrace();
  }//创建文件输出流。
  catch (IOException e) {
   // TODO 自动生成 catch 块
   e.printStackTrace();
  }
  return bl;
 }
 

 /*
  * 转换Image数据为byte数组   
  * */
 public static byte[] ImageToBytes(String path)
 {
	 File file = new File(path);//"C:\\Documents and Settings\\All Users\\Documents\\My Pictures\\示例图片\\Sunset.jpg"
	 FileInputStream fin = null;
	 try {
		fin = new FileInputStream(file);
	 } catch (FileNotFoundException e1) {
		   // TODO Auto-generated catch block
		   e1.printStackTrace();
	 } 
	 try {
		 ByteArrayOutputStream out= new ByteArrayOutputStream(); 
		 int i = fin.read();
		 while (i != -1) { 
		   out.write(i); 
		   i= fin.read(); 
		 } 
		 return out.toByteArray();
	 } catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
	}
	
	 return null;
 }	
 
 

 
 public static void main(String args[])
 {

	 
	 byte b[] = ImageToBytes("C:\\Documents and Settings\\All Users\\Documents\\My Pictures\\示例图片\\Sunset.jpg");
   
	ByteToImage(b, "2");

 }
}