java根据字段值合并两个list

核心算法是，两个for循环，遍历list，然后用map的去重特性，赋值，拿到新的list

package com.example.demo2;

import com.example.demo2.entity.*;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.util.StringUtils;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.stream.Collectors;


@SpringBootTest(classes = {Demo2Application.class}, properties = {"application.properties"})
public class Test {
@org.junit.Test
public void test() throws ParseException {
/*说明：以下是两个list，唯一标志是unicast的值，每一个按钮，对应一个unicast的值，
展示的是第一个列表，但后端没有返回按钮的打开和关闭状态，需要去第二个表里面查找，
把true状态，覆盖到第一个表里面。
这里涉及到表的合并，借助两个for循环，比对判断 ，然后更新ui状态
{
"code":200,
"data":[
{
"id":325,
"gateway":"2903381",
"unicast":"72 02",
"pasterName":"单开随意贴(遥控器)",
"pid":"A7C131",
"powerItems":"[{\"unicast\":\"C172\",\"name\":\"按键1\",\"isOn\":0}]"
}
],
"message":"查询成功"
}
{
"code":200,
"data":[
{
"select":true,
"pasterId":"2903381_C16D",
"name":"三开随意贴(遥控器)_按键3",
"pid":"A7C130"
},
{
"select":true,
"pasterId":"2877042_C158",
"name":"双开随意贴(遥控器)_按键1",
"pid":"A7C132"
}
],
"message":"查询成功" 58 59 6d 77
}
* */

List<PowerItemsBean> list = new ArrayList<>();
list.add(new PowerItemsBean("C158", "按键1", 0, false));
list.add(new PowerItemsBean("C159", "按键2", 0, false));
list.add(new PowerItemsBean("C16D", "按键3", 1, false));
List<SetSuiStatusBean.DataBean> list2 = new ArrayList<>();
list2.add(new SetSuiStatusBean.DataBean(true, "2903381_C16D", "三开随意贴(遥控器)_按键3", "a7c130"));
list2.add(new SetSuiStatusBean.DataBean(false, "2903381_C158", "单开随意贴(遥控器)_按键2", "a7c132"));
list2.add(new SetSuiStatusBean.DataBean(true, "2903381_C177", "双开随意贴(遥控器)_按键1", "a7c131"));

System.out.println(list + "\t" + list2);
/*
* 好像是说弄两个for循环 存入一个新表中
* */
HashMap<String, PowerItemsBean> map = new HashMap();
for (int i = 0; i < list.size(); i++) {
map.put(list.get(i).getUnicast(), new PowerItemsBean(list.get(i).getUnicast(), list.get(i).getName(), list.get(i).getIsOn(), list.get(i).isSelect()));
}
for (int j = 0; j < list2.size(); j++) {
map.put(getPasterData(list2.get(j).getPasterId()), new PowerItemsBean(getPasterData(list2.get(j).getPasterId()), getPasterData(list2.get(j).getName()), 0, list2.get(j).isSelect()));

}
System.out.println(map);
}

private String getPasterData(String data) {
String[] times = data.split("_");
return times[1];
}
}