Java.io.ObjectOutputStream.writeLong() 方法 Java.io.ObjectOutputStream.writeInt() 方法 Java.io.ObjectOutputStream.writeObject() 方法 Java.io.ObjectOutputStream.writeLong() 方法 package com.codingdict; import java.io.*; public class ObjectOutputStreamDemo { public static void main(String[] args) { long l = 976349698745987459l; try { // create a new file with an ObjectOutputStream FileOutputStream out = new FileOutputStream("test.txt"); ObjectOutputStream oout = new ObjectOutputStream(out); // write something in the file oout.writeLong(l); oout.writeLong(984876837644l); // close the stream oout.close(); // create an ObjectInputStream for the file we created before ObjectInputStream ois = new ObjectInputStream(new FileInputStream("test.txt")); // read and print what we wrote before System.out.println("" + ois.readLong()); System.out.println("" + ois.readLong()); } catch (Exception ex) { ex.printStackTrace(); } } } Java.io.ObjectOutputStream.writeInt() 方法 Java.io.ObjectOutputStream.writeObject() 方法