package com.order.tools;
import org.apache.commons.codec.binary.Base64;
import java.io.*;
import java.net.HttpURLConnection;
import java.net.URL;
public class Base64Utils {
public static String image2Base64(String imgUrl) {
URL url;
InputStream is = null;
ByteArrayOutputStream outStream = null;
HttpURLConnection httpUrl = null;
try {
url = new URL(imgUrl);
httpUrl = (HttpURLConnection) url.openConnection();
httpUrl.connect();
httpUrl.getInputStream();
is = httpUrl.getInputStream();
outStream = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = is.read(buffer)) != -1) {
outStream.write(buffer, 0, len);
}
return new String(Base64.encodeBase64(outStream.toByteArray()));
} catch (Exception e) {
e.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (outStream != null) {
try {
outStream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (httpUrl != null) {
httpUrl.disconnect();
}
}
return imgUrl;
}
public static String fileToBase64(String path) {
String base64 = null;
InputStream in = null;
try {
File file = new File(path);
in = new FileInputStream(file);
byte[] bytes = new byte[(int) file.length()];
in.read(bytes);
base64 = java.util.Base64.getEncoder().encodeToString(bytes);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return base64;
}
public static void base64ToFile(String destPath, String base64, String fileName) {
File file = null;
String filePath = destPath;
File dir = new File(filePath);
if (!dir.exists() && !dir.isDirectory()) {
dir.mkdirs();
}
BufferedOutputStream bos = null;
java.io.FileOutputStream fos = null;
try {
byte[] bytes = java.util.Base64.getDecoder().decode(base64);
file = new File(filePath + "/" + fileName);
fos = new java.io.FileOutputStream(file);
bos = new BufferedOutputStream(fos);
bos.write(bytes);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (bos != null) {
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}