使用JSONpath在REST ASSURED java中想要提取数组中的数据

Question

函数包含API，我可以在其中获得JSON格式的值。但我想要得到JSON中存在的ID=2，我如何使用Java JSON路径获得该数据。我必须使用maven依赖项。该函数包含API，我可以在其中获得JSON格式的值。但我想要得到JSON中存在的ID=2，我如何使用Java JSON路径获得该数据。我必须使用maven依赖项。

<dependency>
<groupId>com.jayway.jsonpath</groupId>
<artifactId>json-path</artifactId>
<version>2.4.0</version>
</dependency>

void get_extract_response_body() {
//Specify Base URL

RestAssured.baseURI="https://reqres.in/api";

//Request object
RequestSpecification httpRequest=RestAssured.given(); 
//Response Object
Response response=httpRequest.request(Method.GET,"/unknown");

String responseBody= response.getBody().asString();
System.out.println(responseBody);

//Print Response in console window
JsonPath jsonpath= response.jsonPath(); 

System.out.println(jsonpath.get("data[0]."));


/*
* String id=jsonpath.get("$.data[1].id"); System.out.println(id);
*/



}

{
"page": 1,
"per_page": 6,
"total": 12,
"total_pages": 2,
"data": [
{
"id": 1,
"name": "cerulean",
"year": 2000,
"color": "#98B2D1",
"pantone_value": "15-4020"
},
{
"id": 2,
"name": "fuchsia rose",
"year": 2001,
"color": "#C74375",
"pantone_value": "17-2031"
},
{
"id": 3,
"name": "true red",
"year": 2002,
"color": "#BF1932",
"pantone_value": "19-1664"
},
{
"id": 4,
"name": "aqua sky",
"year": 2003,
"color": "#7BC4C4",
"pantone_value": "14-4811"
},
{
"id": 5,
"name": "tigerlily",
"year": 2004,
"color": "#E2583E",
"pantone_value": "17-1456"
},
{
"id": 6,
"name": "blue turquoise",
"year": 2005,
"color": "#53B0AE",
"pantone_value": "15-5217"
}
],
"support": {
"url": "https://reqres.in/#support-heading",
"text": "To keep ReqRes free, contributions towards server costs are appreciated!"
}
}

这个响应帮助我从每个数据中找到键值。

Answer 1

有2个JsonPath:

• JsonPath放心:

JsonPath jsonpath= response.jsonPath();
int id = jsonPath.getInt("data[1].id");
System.out.println(id); //2

• JsonPath Jayway:

int id = com.jayway.jsonpath.JsonPath.read(response.asString(), "$.data[1].id");
System.out.println(id); //2