创建在Java中序列化类的JSON文件

import java.io.Serializable;

public class MyClass implements Serializable {
    // 类的成员变量和方法
}

import com.fasterxml.jackson.databind.ObjectMapper;

public class Main {
    public static void main(String[] args) {
        MyClass obj = new MyClass();
        
        try {
            ObjectMapper mapper = new ObjectMapper();
            String json = mapper.writeValueAsString(obj);
            System.out.println(json);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

import java.io.FileWriter;

public class Main {
    public static void main(String[] args) {
        MyClass obj = new MyClass();
        
        try {
            ObjectMapper mapper = new ObjectMapper();
            String json = mapper.writeValueAsString(obj);
            
            FileWriter writer = new FileWriter("output.json");
            writer.write(json);
            writer.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}