1 package base64StringToImage;
2 import java.awt.image.BufferedImage;
3 import java.io.ByteArrayInputStream;
4 import java.io.ByteArrayOutputStream;
5 import java.io.File;
6 import java.io.IOException;
7 import javax.imageio.ImageIO;
8 import sun.misc.BASE64Decoder;
9 import sun.misc.BASE64Encoder;
10
11 public class TestImageBinary {
12
13 /**
14 *
15 *@param filePath 照片绝对路径
16 *@return String base64码字符串
17 *
18 **/
19 public String changeImagetoBase64String(String filePath){
20 BASE64Encoder encoder = new BASE64Encoder();
21 String base64String = "";
22 File file = new File(filePath);
23 BufferedImage buffer;
24 try {
25 buffer = ImageIO.read(file);
26 ByteArrayOutputStream baos = new ByteArrayOutputStream();
27 ImageIO.write(buffer, "jpg", baos); //第二个参数“jpg”不需要修改
28 byte[] bytes = baos.toByteArray();
29 base64String = encoder.encodeBuffer(bytes).trim();
30 } catch (IOException e) {
31 e.printStackTrace();
32 }
33 return base64String;
34 }
35
36 /**
37 *
38 *@param base64String base64码字符串
39 *@param filePath 照片绝对路径
40 *
41 **/
42 public void changeBase64StringtoImage(String base64String, String filePath){
43 BASE64Decoder decoder = new BASE64Decoder();
44 try {
45 byte[] bytes = decoder.decodeBuffer(base64String);
46 ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
47 BufferedImage buffer =ImageIO.read(bais);
48 File file = new File(filePath); //jpg,png,gif等格式
49 ImageIO.write(buffer, "jpg", file); //第二个参数“jpg”不需要修改
50 } catch (IOException e) {
51 e.printStackTrace();
52 }
53 }
54 }
image-base64互转
时间： 2024-10-24 18:25:37