java - 如何从文件中反序列化多个对象

Question

如何从文件中反序列化多个对象？以下是我尝试过的代码，它适用于一个对象，但不适用于多个对象。

         public List<Show> populateDataFromFile(String fileName) {
        // TODO Auto-generated method stub
          Show s = null;
          //FileInputStream fileIn=null;

          try
          {
              FileInputStream fileIn=new FileInputStream("C:\\Users\\Admin\\Desktop\\Participant_Workspace\\Q1\\ShowBookingSystem\\ShowDetails.ser");  
                int i=0;  
                while((i=fileIn.read())!=-1){ 
          //   fileIn = new FileInputStream("C:\\Users\\Admin\\Desktop\\Participant_Workspace\\Q1\\ShowBookingSystem\\ShowDetails.ser");
             ObjectInputStream in = new ObjectInputStream(fileIn);

             s = (Show) in.readObject();
             in.close();
             fileIn.close();

              System.out.println("Name: " + s.getShowName());
              System.out.println("Show Time: " + s.getShowTime());
              System.out.println("Seats Available: " + s.getSeatsAvailable());
                }
          }catch(IOException i)
          {
             i.printStackTrace();

          }catch(ClassNotFoundException c)
          {
             System.out.println("Employee class not found");
             c.printStackTrace();

          }

        return null;
    }

我什至尝试使用

while((i=fin.read())!=-1) 

但是没有成功。我需要做出什么改变？

Answer 1

试试这个方法:

 Show s = null;
        try {
            FileInputStream fileIn = new FileInputStream(".....");
            ObjectInputStream in = new ObjectInputStream(fileIn);
            while (true) {
                try {
                    s = (Show) in.readObject();
                } catch (IOException ex) {
                   break;
                } catch (ClassNotFoundException ex) {
                    Logger.getLogger(Test.class.getName()).log(Level.SEVERE, null, ex);
                }

               System.out.println("Name: " + s.getShowName());
              System.out.println("Show Time: " + s.getShowTime());
              System.out.println("Seats Available: " + s.getSeatsAvailable());
            }

            in.close();
            fileIn.close();