无法在R中存储Web服务响应

Question

我有一个在Rstudio中获得正确响应的SOAP请求，如下面的屏幕截图所示。用于请求响应的代码是

library(RCurl)

headerFields = 
  c(Accept = "text/xml",
    'Content-Type' = "text/xml; charset=utf-8",
    SOAPAction = "")

body = '<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sch="http://www.xxxxx.com/esotservice/schema">
   <S:Header/>
<S:Body>
<sch:OwnerOnlyInquiryRequest>
<sch:RequestHeader>
<sch:ClientSystem>ePRS</sch:ClientSystem>
</sch:RequestHeader>
<sch:RequestParameterList>
<sch:RequestParam>12174391</sch:RequestParam>
</sch:RequestParameterList>
<sch:RequestType>CESEID</sch:RequestType>
<sch:PeckingOrder>Pricing</sch:PeckingOrder>
<sch:ViewType>Pricing</sch:ViewType>
</sch:OwnerOnlyInquiryRequest>
</S:Body>
</S:Envelope>'

R <- curlPerform(url = "http://slsesotdevt1.ute.xxxx.com:10149/esot/esotservice.wsdl",
            httpheader = headerFields,
            postfields = body, verbose=TRUE)

我在RStudio中得到的回应是

我的目的是将webservice响应（图像中的黑色文本）存储到代码中的对象R中，对象类为XML，这样我就可以使用XML包来进一步处理数据。但是，当我说print（R）时，我得到的唯一回应是

搜索网络后，响应0表示一切正常。但有没有办法在R中实际存储响应？如果我复制粘贴Rstudio中第一个图像中出现的黑色文本并将其提供给xml函数，如xmlTreeParse，它将被正确处理。

Answer 1

您需要使用basicTextGatherer获取响应正文。

例如（取自https://cran.r-project.org/web/packages/RCurl/RCurl.pdf）：

library(RCurl)

headerFields = 
  c(Accept = "text/xml",
    'Content-Type' = "text/xml; charset=utf-8",
    SOAPAction = "")

body = '<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/" xmlns:sch="http://www.xxxxx.com/esotservice/schema">
   <S:Header/>
<S:Body>
<sch:OwnerOnlyInquiryRequest>
<sch:RequestHeader>
<sch:ClientSystem>ePRS</sch:ClientSystem>
</sch:RequestHeader>
<sch:RequestParameterList>
<sch:RequestParam>12174391</sch:RequestParam>
</sch:RequestParameterList>
<sch:RequestType>CESEID</sch:RequestType>
<sch:PeckingOrder>Pricing</sch:PeckingOrder>
<sch:ViewType>Pricing</sch:ViewType>
</sch:OwnerOnlyInquiryRequest>
</S:Body>
</S:Envelope>'

h = basicTextGatherer()
R <- curlPerform(url = "http://slsesotdevt1.ute.xxxx.com:10149/esot/esotservice.wsdl",
            httpheader = headerFields,
            postfields = body, verbose=TRUE,
writefunction = h$update)
body <- h$value()