Java序列化 - 二进制格式详解

本文主要关注的是二进制序列化后的二进制内容解读。通过解读这些看似枯燥的内容，可以让我们做到心中有底——为什么一端序列化出来的二进制流能在另外一端完整地复原？

1. 样例代码

代码如下, 省略不关心的部分

public class Employee implements Serializable { 
   private String name;
   private double salary;
   private Date hireDay;
   public Employee(String n, double s, int year, int month, int day) {
      name = n;
      salary = s;
      GregorianCalendar calendar = new GregorianCalendar(year, month - 1, day);
      hireDay = calendar.getTime();
   }
    // 略
}
public class Tester{
    private static final String SAVED_PATH = "src/main/java/objectStream/employee.dat";
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        // 持久化到本地存储中
        Employee harry = new Employee("Harry Hacker", 50000, 1989, 10, 1);
        try (ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(SAVED_PATH))) {
            out.writeObject(obj);
        }
    }

2. 解读

以下是在notepad++下以hex模式打开的文件截图

https://blog.csdn.net/lqzkcx3/article/details/79463450