我正在用Java对类进行建模以存储JSON,以用于特定的JSON
"id":1,
"firstName":"sample",
"lastName":"person",
"Books":{
"bookName":"gone with the wind"
"isbn": 12345
}
我用
class person
等创建了一个int id , String firstName
...存储bookName的最佳方法是什么,用
class Books
和String bookName
制成int isbn
,我将如何在person类中将书表示为数组?因为书总是只有一种价值,有没有更好的方式来代表它 最佳答案
对于json序列化/反序列化,我建议使用jackson库。这是我的代码,可以在我的计算机上正常工作!
我将json存储在名为json.data的文件中,如下所示:
{"id":1,
"firstName":"sample",
"lastName":"person",
"books":[{"bookName":"gone with the wind","isbn":12345}]
}
和代码,我省略了getter / setter的简短描述
public class Book
{
private String bookName;
private int isbn;
}
public class BookWriter
{
private String id;
private String firstName;
private String lastName;
private Book[] books;
}
public class JSONTest
{
public static void main(String[] args)
{
try
{
ObjectMapper mapper = new ObjectMapper();
BookWriter writer=(BookWriter)mapper.readValue(new File("json.data"), BookWriter.class);
for(Book book:writer.getBooks())
{
System.out.println(book.getBookName()+","+book.getIsbn());
}
} catch (Exception e)
{
e.printStackTrace();
}
}
}