Question

附录一有<条码>OutputStream(,而不是>>。是否可能使用书写方法发送一个序列化物体? 感谢!

Answer 1

这里是你对物体的序列化:

new ObjectOutputStream(outputStream).writeObject(obj);

如果您想要控制<代码>逐[ ]输出:

ByteArrayOutputStream buffer = new ByteArrayOutputStream();

ObjectOutputStream oos = new ObjectOutputStream(buffer);

oos.writeObject(obj);

oos.close();

byte[] rawData = buffer.toByteArray();

Answer 2

You could use ObjectOutputStream to capture the objects data in a byte Array and send this to the OutputStream.

String s = "test";
ByteArrayOutputStream baos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream( baos );
oos.writeObject( s );
byte[] byteArray = baos.toByteArray();
for ( byte b : byteArray ) {
    System.out.print( (char) b );
}

另一种非通用选择是将物体按方位代表顺序排列。 CSV

Answer 3

This is trivial: you can simply wrap your original OutputStream in a new ObjectOutputStream, and then use the specialized methods of ObjectOutputStream:

OutputStream myOriginalOutputStream = ...;
ObjectOutputStream oos = new ObjectOutputStream(myOriginalOutputStream);
oos.writeObject(new MyObject());
oos.flush();
oos.close();

Internally, ObjectOutputStream will call the underlying OutputStream s write() method.

Answer 4

你们必须使用。目标OutputStream 类别及其<代码>* 编码* 物体的方法。事实上,ObjectOutputStream为java.io.OutputStream的子类别。 (这是面向次流的抽象超级类别。) 参看的文章。 Java Serialization AP.

EDIT: You can use XMLEncoder

(from the Doc : The XMLEncoder class is a complementary alternative to the ObjectOutputStream and can used to generate a textual representation of a JavaBean in the same way that the ObjectOutputStream can be used to create binary representation of Serializable objects)

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