java如何在包含映射的ArrayList上循环?
目前,我正在使用rest assured访问端点,然后通过ArrayList和HashMap存储任何JSON数据匹配项
我可以看到我收到了一个响应,但是当ArrayList包含一个内部HashMap时,我该如何循环它呢
从下面的JSON数据可以看出,我希望输出存储在ArrayList中的所有值/匹配项
我的代码:
public void apiTest() {
String position = "Attacker";
String role = "PLAYER";
Response response = given()
.spec(footballCompetitions_requestSpecification)
.when().get(EndPoint.TEAMS + EndPoint.SQUAD);
ArrayList<Map<String, ?>> allPlayers = response.path
("squad.findAll { it.role == '%s' }.findAll { it.position == '%s' }", position, role);
JSON数据示例:
{
"id": 66,
"area": {
"id": 2072,
"name": "England"
},
"activeCompetitions": [
{
"id": 2021,
"area": {
"id": 2072,
"name": "England"
},
"name": "Premier League",
"code": "PL",
"plan": "TIER_ONE",
"lastUpdated": "2019-01-03T23:39:45Z"
},
{
"id": 2001,
"area": {
"id": 2077,
"name": "Europe"
},
"name": "UEFA Champions League",
"code": "CL",
"plan": "TIER_ONE",
"lastUpdated": "2018-12-13T18:55:02Z"
}
],
"name": "Manchester United FC",
"shortName": "Man United",
"tla": "MNU",
"crestUrl": "http://upload.wikimedia.org/wikipedia/de/d/da/Manchester_United_FC.svg",
"address": "Sir Matt Busby Way Manchester M16 0RA",
"phone": "+44 (0161) 8688000",
"website": "http://www.manutd.com",
"email": "enquiries@manutd.co.uk",
"founded": 1878,
"clubColors": "Red / White",
"venue": "Old Trafford",
"squad": [
{
"id": 3188,
"name": "David De Gea",
"position": "Goalkeeper",
"dateOfBirth": "1990-11-07T00:00:00Z",
"countryOfBirth": "Spain",
"nationality": "Spain",
"shirtNumber": 1,
"role": "PLAYER"
},
{
"id": 3331,
"name": "Marcus Rashford",
"position": "Attacker",
"dateOfBirth": "1997-10-31T00:00:00Z",
"countryOfBirth": "England",
"nationality": "England",
"shirtNumber": 10,
"role": "PLAYER"
},
{
"id": 3372,
"name": "Anthony Martial",
"position": "Attacker",
"dateOfBirth": "1995-12-05T00:00:00Z",
"countryOfBirth": "France",
"nationality": "France",
"shirtNumber": 11,
"role": "PLAYER"
},
{
"id": 3662,
"name": "Romelu Lukaku",
"position": "Attacker",
"dateOfBirth": "1993-05-13T00:00:00Z",
"countryOfBirth": "Belgium",
"nationality": "Belgium",
"shirtNumber": 9,
"role": "PLAYER"
},
# 1 楼答案
如果您使用的是Java 8或更高版本,那么只需先在
List
上迭代,然后在Map
上使用lambda表达式进行嵌套迭代:你需要注意的是
String
的value
表示,因为它在你的代码中是Map<String, ?>
,在我的例子中是Map<String, String>
,如果你直接使用上面例子的System.out.println(key + ": " + value);
,可能会导致什么问题