Object,byte[],ByteBuffer之间的转换

来源：互联网发布：亿赞普大数据编辑：程序博客网时间：2024/05/23 14:31
package cn.vicky.utils;  import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.nio.ByteBuffer;  import org.apache.mina.core.buffer.IoBuffer;  /**  * 对象序列化，反序列化（序列化对象转byte[],ByteBuffer, byte[]转object  *   * @author Vicky  * @email eclipser@163.com  */ public class ByteUtil {      public static byte[] getBytes(Object obj) throws IOException {         ByteArrayOutputStream bout = new ByteArrayOutputStream();         ObjectOutputStream out = new ObjectOutputStream(bout);         out.writeObject(obj);         out.flush();         byte[] bytes = bout.toByteArray();         bout.close();         out.close();         return bytes;     }      public static Object getObject(byte[] bytes) throws IOException, ClassNotFoundException {         ByteArrayInputStream bi = new ByteArrayInputStream(bytes);         ObjectInputStream oi = new ObjectInputStream(bi);         Object obj = oi.readObject();         bi.close();         oi.close();         return obj;     }      public static Object getObject(ByteBuffer byteBuffer) throws ClassNotFoundException, IOException {         // 需要mina框架的IoBuffer         IoBuffer buffer = IoBuffer.allocate(byteBuffer.capacity()).setAutoExpand(true); // 自动展开         for (int i = 0; i < byteBuffer.capacity(); i++) {             byteBuffer.position(i);             buffer.put(byteBuffer.get());         }         buffer.position(0);         InputStream input = buffer.asInputStream();         ObjectInputStream oi = new ObjectInputStream(input);         Object obj = oi.readObject();         input.close();         oi.close();         return obj;     }      public static ByteBuffer getByteBuffer(Object obj) throws IOException {         byte[] bytes = ByteUtil.getBytes(obj);         ByteBuffer buff = ByteBuffer.wrap(bytes);         return buff;     }  }