[Java知识库]两个数组对象进行合并

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

public class ceshi {
    public static void main(String[] args) {
        List<实体类> one = new ArrayList<>();
        实体类 vo = new 实体类();
        vo.setMatchRingId(12345);
        vo.setBoss1BetCount("值1");
        vo.setBoss2BetCount("值2");
        vo.setWinType(1);
        vo.setRewardCount("值3");
        vo.setRingType(4);
        vo.setPump("值5");
        one.add(vo);

        List<实体类> two = new ArrayList<>();
        实体类 vos = new 实体类();
        vos.setMatchRingId(12345);
        vos.setNzTotal("99999");
        vos.setAbTotal("88888");
        two.add(vos);
        System.out.println("集合1长度:" + one.size() + "==集合2长度:" + two.size());
        Map<Integer, 实体类> map = two.stream()
                .collect(Collectors.toMap(实体类::getMatchRingId, match -> match));
        // 重复问题
        /*
         * Map<Integer, 实体类> keyRedo = one.stream()
         * .collect(Collectors.toMap(实体类::getMatchRingId, Function.identity(),
         * (key1, key2) -> key2));
         */
        // 合并
        one.forEach(n -> {
            // 如果等级一致
            if (map.containsKey(n.getMatchRingId())) {
                实体类 obj = map.get(n.getMatchRingId());
                // 把数量复制过去
                n.setAbTotal(obj.getAbTotal());
                n.setNzTotal(obj.getNzTotal());
            }
        });

        one.forEach(m -> {
            System.out.println(m.getMatchRingId() + "==" + m.getNzTotal() + "==" + m.getPump());
        });

    }
}