Gatling 提取 xpath 值错误“尚未声明命名空间前缀 'soap'”答案

【问题标题】：Gatling extract xpath values error "Namespace prefix 'soap' has not been declared"Gatling 提取 xpath 值错误“尚未声明命名空间前缀 'soap'”
【发布时间】：2019-09-26 22:59:58
【问题描述】：

以下场景为我引入了正确的 SOAP 主体，但我无法使用 xpath expression 提取它的值

路径表达式/*/soap:Body/m:NumberToDollarsResponse/m:NumberToDollarsResult/text()我用这个网站形成的 https://codebeautify.org/Xpath-Tester

  val httpConf = http.baseUrl("https://www.dataaccess.com")
  val headerXml = Map("Keep-Alive" -> "115", "Content-Type" -> "application/soap+xml; charset=utf-8")

 val soapXmlScn = scenario("make First Soap Call")
                 .exec(
                   http("Soap API Call With XML")
                   .post("/webservicesserver/numberconversion.wso")
                   .headers(headerXml)
                   .body(StringBody("""<?xml version="1.0" encoding="utf-8"?>
                    <soap20:Envelope xmlns:soap20="http://www.w3.org/2003/05/soap-envelope">
                      <soap20:Body>
                        <NumberToDollars xmlns="http://www.dataaccess.com/webservicesserver/">
                          <dNum>45</dNum>
                        </NumberToDollars>
                      </soap20:Body>
                    </soap20:Envelope>"""))
                   .check(status.is(200))
                   .check(xpath("""//*/soap:Body/m:NumberToDollarsResponse/m:NumberToDollarsResult/text()""").saveAs("doller_value" ))
                 )
                 .exec {
                      session =>
                        println("doller value >>>> " + session("doller_value").as[String].toString)
                        session
                    }

响应正文是

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
  <soap:Body>
    <m:NumberToDollarsResponse xmlns:m="http://www.dataaccess.com/webservicesserver/">
      <m:NumberToDollarsResult>forty five dollars</m:NumberToDollarsResult>
    </m:NumberToDollarsResponse>
  </soap:Body>
</soap:Envelope>

控制台上显示的错误是

12:22:16.880 [ERROR] i.g.c.a.b.SessionHookBuilder$$anon$1 - 'hook-1' crashed with 'j.u.NoSuchElementException: No attribute named 'doller_value' is defined', forwarding to the next one

【问题讨论】：

标签： scala xpath soap gatling

【解决方案1】：

命名空间List 需要提供给您的xpath 检查如下，我的请求工作正常。 这些命名空间 URL 仅在您的 SOAP 响应 xml 中提及

.check(xpath("""//soap:Envelope/soap:Body/m:NumberToDollarsResponse/m:NumberToDollarsResult/text()""", List("soap" -> "http://www.w3.org/2003/05/soap-envelope", "m" -> "http://www.dataaccess.com/webservicesserver/")).findAll.saveAs("doller_value" ))

【讨论】：