Spring WebClient提取JsonPath值

我正在使用Spring5，希望提取与

jsonPath

表达式匹配的body，但找不到任何合适的方法。例如（代码在Kotlin中，但我希望这不会有任何区别）：

实际的json正文是：

{
"names": [
"jvm.buffer.memory.used",
"jvm.memory.used",
"jvm.buffer.count",
"jvm.gc.memory.allocated",
"logback.events",
"process.uptime",
"jvm.memory.committed",
"system.load.average.1m",
"jvm.gc.max.data.size",
"jvm.buffer.total.capacity",
"jvm.memory.max",
"system.cpu.count",
"jvm.threads.daemon",
"system.cpu.usage",
"jvm.threads.live",
"process.start.time",
"jvm.threads.peak",
"jvm.gc.live.data.size",
"jvm.gc.memory.promoted",
"process.cpu.usage"
]
}

---

所以我想把名字列表放到列表变量中并使用它。当前的

jsonPath

支持有什么方法可以做到这一点吗？

类似的东西应该可以使用（在

springBootVersion='2.1.0.RELEASE'中试用过）

：

{
"names": [
"jvm.buffer.memory.used",
"jvm.memory.used",
"jvm.buffer.count",
"jvm.gc.memory.allocated",
"logback.events",
"process.uptime",
"jvm.memory.committed",
"system.load.average.1m",
"jvm.gc.max.data.size",
"jvm.buffer.total.capacity",
"jvm.memory.max",
"system.cpu.count",
"jvm.threads.daemon",
"system.cpu.usage",
"jvm.threads.live",
"process.start.time",
"jvm.threads.peak",
"jvm.gc.live.data.size",
"jvm.gc.memory.promoted",
"process.cpu.usage"
]
}

client.get().uri("/app/metrics")
    .accept(MediaType.APPLICATION_JSON_UTF8)
    .exchange()
    .expectStatus().isOk
    .expectBody()
    .jsonPath("$.names")
    .value<JSONArray> { json ->
        json.toList().forEach { println(it) }
    }

jvm.buffer.memory.used
jvm.memory.used
jvm.buffer.count
jvm.gc.memory.allocated
logback.events
process.uptime
jvm.memory.committed
system.load.average.1m
jvm.gc.max.data.size
jvm.buffer.total.capacity
jvm.memory.max
system.cpu.count
jvm.threads.daemon
system.cpu.usage
jvm.threads.live
process.start.time
jvm.threads.peak
jvm.gc.live.data.size
jvm.gc.memory.promoted
process.cpu.usage