序列化文件，反序列化arraylist中的文件

Question

我想从另一个类读取序列化文件，并用对象值填充ArrayList。有人能帮我吗？

import java.io.*; 
public class CreateEmployeeSer{
public static void main(String args[])  {
try
{
ObjectOutputStream output = new ObjectOutputStream( new FileOutputStream("employee.ser"));
output.writeObject(new Employee(101, "Brown", 6500, M, 28));
output.writeObject(new Employee(201, "Johnson", 6300, F, 28));
output.writeObject(new Employee(301, "Belt", 5500, F, 30));
output.writeObject(new Employee(401, "Bulb", 7400, M, 40));
output.writeObject(new Employee(501, "Goodness", 6400, F, 30));
output.writeObject(new Employee(601, "Filter", 4900, F, 22));
output.writeObject(new Employee(701, "Porto", 5000, M, 19));
output.close();
}//end try       
catch(IOException fnfe)
{
System.out.println(fnfe);
System.exit(1);
}
}//end main
}

Answer 1

请尝试以下操作：-

class demo{

public static void main(String[] args){
try{
ArrayList<Employee> arrayList = new ArrayList<>();
ObjectInputStream in = new ObjectInputStream(new FileInputStream("employee.ser"));
for(int i=0; i<7; i++){
Employee employee = (Employee)in.readObject();
arrayList.add(employee);
}
in.close();
}
catch(Exception e){
System.out.print(e);
}
}
}