Java Base64加密源码

如下的内容段是关于Java Base64加密的内容，应该能对大伙有些用。

import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.InputStream; import java.io.OutputStream;

import javax.mail.internet.MimeUtility;

public class Base64 { public static byte[] encode(byte[] b) throws Exception { ByteArrayOutputStream baos = null; OutputStream b64os = null; try { baos = new ByteArrayOutputStream(); b64os = MimeUtility.encode(baos, "base64"); b64os.write(b); b64os.close(); return baos.toByteArray(); } catch (Exception e) { throw new Exception(e); } finally { try { if (baos != null) { baos.close(); baos = null; } } catch (Exception e) { } try { if (b64os != null) { b64os.close(); b64os = null; } } catch (Exception e) { } } }

public static byte[] decode(byte[] b) throws Exception { ByteArrayInputStream bais = null; InputStream b64is = null; try { bais = new ByteArrayInputStream(b); b64is = MimeUtility.decode(bais, "base64"); byte[] tmp = new byte[b.length]; int n = b64is.read(tmp); byte[] res = new byte[n]; System.arraycopy(tmp, 0, res, 0, n);

return res; } catch (Exception e) { throw new Exception(e); } finally { try { if (bais != null) { bais.close(); bais = null; } } catch (Exception e) { } try { if (b64is != null) { b64is.close(); b64is = null; } } catch (Exception e) { } } } }