Base64 加解密

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import java.io.UnsupportedEncodingException; import org.apache.tomcat.util.codec.binary.Base64;   /**  * Base64内容传送编码被设计用来把任意序列的8位字节描述为一种不易被人直接识别的形式。*/ public class DEbase64{       /**      * 加密      */     public static String encodeBase64(String cleartext) {           try {               cleartext = new String(Base64.encodeBase64(cleartext.getBytes("UTF-8")));           } catch (UnsupportedEncodingException e) {             e.printStackTrace();         }         return cleartext;     }       /**      * 解密      */     public static String decodeBase64(String ciphertext) {         try {               ciphertext = new String(Base64.decodeBase64(ciphertext.getBytes()),"UTF-8");           } catch (UnsupportedEncodingException e) {             e.printStackTrace();         }         return ciphertext;     }       public static void main(String[] args) throws UnsupportedEncodingException {           String str = "dsfdsgfd";           String encode =DEbase64.encodeBase64(str);         System.out.println(encode);           String decode =DEbase64.decodeBase64(encode);         System.out.println(decode);     } }