JAVA's own encryption algorithm - MD5\SHA1\BASE64

Need to import the jar package:

commons-codec.jar

    MD5

String str =  "abc" ;

DigestUtils.md5Hex(str);

   SHA1

String str =  "abc" ;

DigestUtils.shaHex(str);

BASE64




//加密

String str=  "abc" ;  // abc为要加密的字符串

byte [] b = Base64.encodeBase64(str.getBytes(),  true );

System.out.println( new String(b));

 

//解密

String str =  "YWJj" ;  // YWJj为要解密的字符串

byte [] b = Base64.decodeBase64(str.getBytes());

System.out.println( new String(b));