val url = "http://www.unionpayintl.com/cardholderServ/serviceCenter/rate/search"

        val params = mutableListOf<NameValuePair>()

        val pair = BasicNameValuePair("curDate", SimpleDateFormat("yyyy-MM-dd").format(Date()))

        params.add(pair)

        val client = HttpClients.createDefault()

        val httpPost = HttpPost(url)

        try {

            httpPost.entity = UrlEncodedFormEntity(params, "UTF-8")

            httpPost.setHeader("Content-type", "application/x-www-form-urlencoded")

            val response = client.execute(httpPost)

            val statusCode = response.statusLine.statusCode

            if (statusCode == 200) {

                val entity = response.entity

                val s = EntityUtils.toString(entity)

                println(JSONObject.parseObject(s))

                return JSONObject.parseObject(s).getDoubleValue("exchangeRate")

            }

        } catch (e: IOException) {

            e.printStackTrace()

        }

val url = "http://www.baidu.com？id=12&name=3"

        try {

            val result = HttpUtils.get(url)

            val json = JSONObject.parseObject(result)

        } catch (e: Exception) {

            e.printStackTrace()

        }