List集合对象转为List<Map<String, Object>>

可以使用Java 8的Stream API将List集合对象转换为List<Map<String, Object>>。具体实现方法如下所示：

import java.util.*;
import java.util.stream.Collectors;

public class Main {
    public static void main(String[] args) {
        // 创建一个List集合对象
        List<StudentInfo> studentList = new ArrayList<>();
        studentList.add(new StudentInfo("Tom", 18, 175));
        studentList.add(new StudentInfo("Jerry", 19, 180));
        studentList.add(new StudentInfo("Mike", 20, 170));

        // 将List集合对象转换为List<Map<String, Object>>
        List<Map<String, Object>> mapList = studentList.stream()
                .map(student -> {
                    Map<String, Object> map = new HashMap<>();
                    map.put("name", student.getName());
                    map.put("age", student.getAge());
                    map.put("height", student.getHeight());
                    return map;
                })
                .collect(Collectors.toList());

        // 输出转换后的List<Map<String, Object>>
        System.out.println(mapList);
    }
}

class StudentInfo {
    private String name;
    private int age;
    private int height;

    public StudentInfo(String name, int age, int height) {
        this.name = name;
        this.age = age;
        this.height = height;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }

    public int getHeight() {
        return height;
    }
}

输出结果为：

[{name=Tom, age=18, height=175}, {name=Jerry, age=19, height=180}, {name=Mike, age=20, height=170}]