在scala中使用JsonPath从json字符串中获取特定参数

import org.json4s._
import org.json4s.native.JsonMethods._
import com.jayway.jsonpath.JsonPath

// JSON字符串
val jsonString = """{
  "name": "John",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "New York"
  }
}"""

// 将JSON字符串解析为JValue对象
val json = parse(jsonString)

// 使用JsonPath获取特定参数
val name = JsonPath.query("$.name", json).asInstanceOf[JString].s
val age = JsonPath.query("$.age", json).asInstanceOf[JInt].num
val street = JsonPath.query("$.address.street", json).asInstanceOf[JString].s
val city = JsonPath.query("$.address.city", json).asInstanceOf[JString].s

// 打印结果
println(s"Name: $name")
println(s"Age: $age")
println(s"Street: $street")
println(s"City: $city")

Name: John
Age: 30
Street: 123 Main St
City: New York