Three ways in which Java implements BASE64 encoding

Absrtact: The three ways of JAVABASE64 encoding are as follows three ways: Commons-codec.jar Java code 1. String base64string= "whuang123"; 2. byte[] result = Base64.

Three ways to encode Javabase64

There are three ways of doing this:

Way One: Commons-codec.jar

Java code

1. String base64string= "whuang123";

2. byte[] result = Base64.encodebase64 (Base64string.getbytes ());

Mode two: Use Sun.misc.BASE64Encoder

Java code

1./**

2. * Encoding

3. *

4. * @parambstr

5. * @returnString

6. */

7. Publicstaticstringencode (BYTE[]BSTR) {

8. Return new Sun.misc.BASE64Encoder (). Encode (BSTR);

9.}

10.

11./**

12. * Decoding

13. *

* @paramstr

* @returnstring

16. */

Publicstaticbyte[]decode (STRINGSTR) {

Byte[]bt=null;

try{.

Sun.misc.base64decoderdecoder=newsun.misc.base64decoder ();

Bt=decoder.decodebuffer (str);

}catch (Ioexceptione) {

E.printstacktrace ();

24.}

25.

RETURNBT;

27.}

Method Three: Use Com.sun.org.apache.xerces.internal.impl.dv.util.Base64

Java code

1./***

2. *encodebybase64

3. */

4. PublicstaticStringencodeBase64 (byte[]input) throwsexception{

5. Classclazz=class

6.. forname ("Com.sun.org.apache.xerces.internal.impl.dv.util.Base64");

7. Methodmainmethod=clazz.getmethod ("Encode", byte[].class);

8. Mainmethod.setaccessible (TRUE);

9. Objectretobj=mainmethod.invoke (Null,newobject[]{input});

Ten. Return (String) retobj;

11.}

12.

13./***

*decodebybase64.

15. */

Publicstaticbyte[]decodebase64 (stringinput) throwsexception{

. Class Clazz=class

forname ("Com.sun.org.apache.xerces.internal.impl.dv.util.Base64");

Methodmainmethod=clazz.getmethod ("Decode", String.class);

Mainmethod.setaccessible (TRUE);

Objectretobj=mainmethod.invoke (Null,input);

Return (byte[]) retobj;

23.}

The results of the operation are as follows:

Recommended use way one.

https://yq.aliyun.com/articles/52597

Three ways in which Java implements BASE64 encoding