利用文件操作进行java深度拷贝。
public static Object copy(Serializable oldObj) {
Object obj = null;
try {
// Write the object out to a byte array
ByteArrayOutputStream bos = new ByteArrayOutputStream();
try (ObjectOutputStream out = new ObjectOutputStream(bos)) {
out.writeObject(oldObj);
out.flush();
}
// Retrieve an input stream from the byte array and read
// a copy of the object back in.
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
ObjectInputStream in = new ObjectInputStream(bis);
obj = in.readObject();
} catch ( IOException | ClassNotFoundException e ) {
e.printStackTrace();
}
return obj;
}
