本文实例为大家分享了Java将图片转二进制再将二进制转成图片,供大家参考,具体内容如下
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import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;
public class TestImageBinary {
static BASE64Encoder encoder = new sun.misc.BASE64Encoder();
static BASE64Decoder decoder = new sun.misc.BASE64Decoder();
public static void main(String[] args) {
System.out.println(getImageBinary());
base64StringToImage(getImageBinary());
}
static String getImageBinary(){
File f = new File( "c://20090709442.jpg" );
BufferedImage bi;
try {
bi = ImageIO.read(f);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ImageIO.write(bi, "jpg" , baos);
byte [] bytes = baos.toByteArray();
return encoder.encodeBuffer(bytes).trim();
} catch (IOException e) {
e.printStackTrace();
}
return null ;
}
static void base64StringToImage(String base64String){
try {
byte [] bytes1 = decoder.decodeBuffer(base64String);
ByteArrayInputStream bais = new ByteArrayInputStream(bytes1);
BufferedImage bi1 =ImageIO.read(bais);
File w2 = new File( "c://QQ.bmp" );//可以是jpg,png,gif格式
ImageIO.write(bi1, "jpg" , w2); //不管输出什么格式图片,此处不需改动
} catch (IOException e) {
e.printStackTrace();
}
}
}
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以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持服务器之家。
原文链接:http://blog.sina.com.cn/s/blog_65b630910100z7fv.html