使用自定义类类型将json文件转换为Java映射

import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.File;
import java.io.IOException;

public class JsonToJavaMapping {
    public static void main(String[] args) {
        ObjectMapper objectMapper = new ObjectMapper();

        try {
            // 读取JSON文件并将其转换为Java对象
            MyData myData = objectMapper.readValue(new File("data.json"), MyData.class);

            // 访问Java对象的属性
            System.out.println("Name: " + myData.getName());
            System.out.println("Age: " + myData.getAge());
            System.out.println("Email: " + myData.getEmail());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

class MyData {
    private String name;
    private int age;
    private String email;

    // 必须提供默认构造函数
    public MyData() {
    }

    // 提供getter和setter方法

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }
}