public class JsonImage {
/**
* TODO:将byte数组以Base64方式编码为字符串
* @param bytes 待编码的byte数组
* @return 编码后的字符串
* */
public static String encode(byte[] bytes){
return new BASE64Encoder().encode(bytes);
}
/**
* TODO:将以Base64方式编码的字符串解码为byte数组
* @param encodeStr 待解码的字符串
* @return 解码后的byte数组
* @throws IOException
* */
public static byte[] decode(String encodeStr) throws IOException{
byte[] bt = null;
BASE64Decoder decoder = new BASE64Decoder();
bt = decoder.decodeBuffer(encodeStr);
return bt;
}
/**
* TODO:将两个byte数组连接起来后，返回连接后的Byte数组
* @param front 拼接后在前面的数组
* @param after 拼接后在后面的数组
* @return 拼接后的数组
* */
public static byte[] connectBytes(byte[] front, byte[] after){
byte[] result = new byte[front.length + after.length];
System.arraycopy(front, 0, result, 0, after.length);
System.arraycopy(after, 0, result, front.length, after.length);
return result;
}
/**
* TODO:将图片以Base64方式编码为字符串
* @param imgUrl 图片的绝对路径（例如：D:\jsontest\abc.jpg）
* @return 编码后的字符串
* @throws IOException
* */
public static String encodeImage(String imgUrl) throws IOException{
URL url = new URL(imgUrl);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
DataInputStream fis1 = new DataInputStream(connection.getInputStream());
byte[] rs = new byte[fis1.available()];
fis1.read(rs);
fis1.close();
return encode(rs);
}
public static void main(String[] args) {
String str;
//若为服务器文件路径 则 ： URL url = new URL(imgUrl); HttpURLConnection connection = (HttpURLConnection) url.openConnection();
String a="http://172.19.0.45:9080/wdhacinfo/MainServlet?action=DOWNLOAD&FILE_ID=1007953211&FILE_OWNER=10011000029625";
try {
str = encodeImage(a);
System.out.println(str);
} catch (IOException e) {
e.printStackTrace();
}
}