我有一个名为Libro的类，它只包含字符串：
public class Libro {
private String titolo;
private String autore;
private String editore;
private String sottotitolo;
private String genere;
private String dpubb;
private String lpubb;
private String soggetto;
private String isbn;
private String note;
private String prezzo;
private String npag;
//getters, setters, constructors...
}
然后我创建了一个名为a的对象，属于Libro类，我尝试将其写入coso.dat文件
try{
ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("C:\\Users\\Workbench\\Documents\\NetBeansProjects\\coso.dat"));
out.writeObject(a);
out.close();
}catch(Exception e) {System.out.println("Damn");}
然后我用NotePad打开文件，似乎我试图序列化一个不可序列化的类：
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detailMessaget Ljava/lang/String;[
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我做错了什么..？如果这个问题看似愚蠢，我很抱歉，但我找不到任何答案