如何把一张 图片(例如路径为c://49.bmp)转成二进制 我要得到byte[] bs 的值,求高手指教 谢谢
InputStream in = null;
Blob image = null;
String imgFile = "c://49.bmp";
in = new FileInputStream(imgFile);
image = Hibernate.createBlob(in);
InputStream in2=image.getBinaryStream();
byte[] bs=new byte[in2.available()];
//image = Hibernate.createBlob(in);
System.out.println(image.length());
// byte[] bs = image.getBytes(1, (int) image.length());
BASE64Encoder encoder = new BASE64Encoder();
String picStr=encoder.encode(bs);// 返回Base64编码过的字节数组字符串
InputStream in = null;
Blob image = null;
String imgFile = "c://49.bmp";
in = new FileInputStream(imgFile);
image = Hibernate.createBlob(in);
InputStream in2=image.getBinaryStream();
byte[] bs=new byte[in2.available()];
//image = Hibernate.createBlob(in);
System.out.println(image.length());
// byte[] bs = image.getBytes(1, (int) image.length());
BASE64Encoder encoder = new BASE64Encoder();
String picStr=encoder.encode(bs);// 返回Base64编码过的字节数组字符串
byte[] bs = bais.toByteArray();
代码如下:
BufferedInputStream in3 = new BufferedInputStream(new FileInputStream("c://blog.bmp"));
ByteArrayOutputStream out = new ByteArrayOutputStream(1024);
byte[] temp = new byte[1024];
int size = 0;
while ((size = in3.read(temp)) != -1) {
out.write(temp, 0, size);
}
in3.close();
byte[] content = out.toByteArray();