The java.util.ObjectOutputStream class writes primitive data types and graphs of Java objects to an OutputStream.The objects can be read (reconstituted) using an ObjectInputStream.
类声明
以下是声明java.util.ObjectOutputStream class:
public class ObjectOutputStream
extends OutputStream
implements ObjectOutput, ObjectStreamConstants
类构造方法
| S.N. | 构造方法 & 详细描述 |
|---|---|
| 1 | protected ObjectOutputStream() This provides a way for subclasses that are completely reimplementing ObjectOutputStream to not have to allocate private data just used by this implementation of ObjectOutputStream. |
| 2 | ObjectOutputStream(OutputStream out) This creates an ObjectOutputStream that writes to the specified OutputStream. |
类方法
| S.N. | 方法 & 描述 |
|---|---|
| 1 | protected void annotateClass(Class <?> cl) Subclasses may implement this method to allow class data to be stored in the stream. |
| 2 | protected void annotateProxyClass(Class<?> cl) Subclasses may implement this method to store custom data in the stream along with descriptors for dynamic proxy classes. |
| 3 | void close() This method closes the stream. |
| 4 | void defaultWriteObject() This method writes the non-static and non-transient fields of the current class to this stream. |
| 5 | protected void drain() This method drain any buffered data in ObjectOutputStream.. |
| 6 | protected boolean enableReplaceObject(boolean enable) This method enable the stream to do replacement of objects in the stream. |
| 7 | void flush() This method flushes the stream. |
| 8 | ObjectOutputStream.PutField putFields() This method retrieves the object used to buffer persistent fields to be written to the stream. |
| 9 | protected Object replaceObject(Object obj) This method will allow trusted subclasses of ObjectOutputStream to substitute one object for another during serialization. |
| 10 | void reset() This method reset will disregard the state of any objects already written to the stream. |
| 11 | void useProtocolVersion(int version) This method specify stream protocol version to use when writing the stream. |
| 12 | void write(byte[] buf) This method writes an array of bytes.. |
| 13 | void write(byte[] buf, int off, int len) This method writes a sub array of bytes. |
| 14 | void write(int val) This method writes a byte. |
| 15 | void writeBoolean(boolean val) This method writes a boolean. |
| 16 | void writeByte(int val) This method writes an 8 bit byte. |
| 17 | void writeBytes(String str) This method writes a String as a sequence of bytes. |
| 18 | void writeChar(int val) This method writes a 16 bit char. |
| 19 | void writeChars(String str) This method writes a String as a sequence of chars. |
| 20 | protected void writeClassDescriptor(ObjectStreamClass desc) This method writes the specified class descriptor to the ObjectOutputStream. |
| 21 | void writeDouble(double val) This method writes a 64 bit double. |
| 22 | void writeFields() This method writes the buffered fields to the stream.. |
| 23 | void writeFloat(float val) This method writes a 32 bit float. |
| 24 | void writeInt(int val) This method writes a 32 bit int. |
| 25 | void writeLong(long val) This method writes a 64 bit long. |
| 26 | void writeObject(Object obj) This method writes the specified object to the ObjectOutputStream. |
| 27 | protected void writeObjectOverride(Object obj) This method is used by subclasses to override the default writeObject method. |
| 28 | void writeShort(int val) This method writes a 16 bit short.. |
| 29 | protected void writeStreamHeader() This method is provided so subclasses can append or prepend their own header to the stream. |
| 30 | void writeUnshared(Object obj) This method writes an "unshared" object to the ObjectOutputStream. |
| 31 | void writerUTF(String str) This method primitive data write of this String in modified UTF-8 format. |
方法继承
此类从以下类继承了上面列出的方法
java.util.Object
