Java实现BASE64编解码 maven

https://blog.csdn.net/uniom/article/details/53638991

    commons-codec
    commons-codec
    1.12

String str = "Hello World";  

try{  
   byte[] encodeBase64 = Base64.encodeBase64(str.getBytes("UTF-8"));  
   System.out.println("Result: " + new String(encodeBase64));  
} catch(UnsupportedEncodingException e){  
   e.printStackTrace();  
}