将对象列表转换为<String，Map<String，Integer>> java8 streams的映射

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

public class ObjectMappingExample {
    public static void main(String[] args) {
        // 假设你有一个对象列表
        List<MyObject> objects = List.of(
                new MyObject("key1", "value1", 1),
                new MyObject("key2", "value2", 2),
                new MyObject("key3", "value3", 3)
        );

        // 将对象列表转换为<String, Map<String, Integer>>的映射
        Map<String, Map<String, Integer>> mapping = objects.stream()
                .collect(Collectors.toMap(
                        MyObject::getKey, // 对象的String属性作为键
                        obj -> Map.of("value", obj.getValue(), "count", obj.getCount()) // 对象的其他属性转换为Map
                ));

        // 打印映射结果
        mapping.forEach((key, value) -> System.out.println(key + ": " + value));
    }

    static class MyObject {
        private String key;
        private String value;
        private int count;

        public MyObject(String key, String value, int count) {
            this.key = key;
            this.value = value;
            this.count = count;
        }

        public String getKey() {
            return key;
        }

        public String getValue() {
            return value;
        }

        public int getCount() {
            return count;
        }
    }
}