使用JavaScript CRM 2011 RU 12（彙總12）調用外部Web服務

Question

直到最近，我們一直在我們的Dynamics CRM 2011應用程序中使用RU 11，但最近開始了一個項目，最終遷移到CRM 2015.我們已經升級到RU 12，這就是事情變得有趣的地方！

我已經設法解決了以前存在的很多編碼問題，但無法解決我們訪問外部Web服務，傳遞參數和檢索數據的問題。

起初我曾與「CreateXmlHttp）（」麻煩的功能，但發現表明以下功能將幫助一個偉大的答案在線：

function CreateXmlHttp() 
{ 
    var ref = null; 
    if (window.XMLHttpRequest) { 
     ref = new XMLHttpRequest(); 
    } else if (window.ActiveXObject) { // Older IE 
     ref = new ActiveXObject("MSXML2.XMLHTTP.3.0"); 
    }    
    return ref;   
} 

這工作得很好，並如預期，它會出現這我現在可以連接到該服務。

但是，我沒有檢索任何數據，這是綁在我身上的問題。

作爲背景，以下是我的代碼來聲明一些整數變量之前通過到web服務的xml。

parseInt(lngLicensNr); 
parseInt(lngNrOfUsers); 
parseInt(lngAnnualWorkingTime); 
parseInt(lngIncludedHours); 
parseInt(productType); 

if (licenceType == 100000000) { 
    var licenseType = "ltUnlimitedMode"; 
    lngIncludedHours = 1000000; 
} 
if (licenceType == 100000001) { 
    var licenseType = "ltHourlyMode"; 
} 

if (lngLicensNr != null && lngNrOfUsers != null && lngAnnualWorkingTime != null && lngIncludedHours != null && productType != null && licenseType != null) { 

    var errMsg = ""; 
    var errCount = 0; 
    var xml = "<soap:Envelope xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">"; 
    xml += "<soap:Body>"; 
    xml += "<GetBaseInstallationKey xmlns=\"http://www.keyservice.com/\">"; 
    xml += "<licensNr>" + lngLicensNr + "</licensNr>"; 
    xml += "<nrOfUsers>" + lngNrOfUsers + "</nrOfUsers>"; 
    xml += "<annualWorkingTime>" + lngAnnualWorkingTime + "</annualWorkingTime>"; 
    xml += "<includedHours>" + lngIncludedHours + "</includedHours>"; 
    xml += "<productType>" + baseProduct + "</productType>"; 
    xml += "<licenseType>" + licenseType + "</licenseType>"; 
    xml += "</GetBaseInstallationKey>"; 
    xml += "</soap:Body>"; 
    xml += "</soap:Envelope>"; 

    try { 
     Request = CreateXmlHttp(); 
    } catch (ex) { 
     alert("An error occured while accessing the webservice.\n\n1. " + ex.name + " \n " + ex.message + "\n\n"); 
     errCount = 1; 
    } 

    if (errCount == 0) { 
     try { 
      Request.open("POST", "http://web01:8080/KeyWebService/KeyWebService.asmx", false); 
     } catch (ex) { 
      alert("An error occured while accessing the webservice.\n\n2. " + ex.name + " \n " + ex.message + "\n\n"); 
      errCount = 1; 
     } 
    } 

    if (errCount == 0) { 
     try { 
      Request.setRequestHeader("SOAPAction", "http://www.keyservice.com/GetKey"); 
      Request.setRequestHeader("Host", "web01:8080"); 
      Request.setRequestHeader("Content-Type", "text/xml; charset=utf-8"); 
      Request.setRequestHeader("Content-Length", xml.length); 
      Request.send(xml); 
      var xmlDoc = Request.responseXML; 
     } catch (ex) { 
      alert("An error occured while accessing the webservice.\n\n3. " + ex.name + " \n " + ex.message + "\n\n"); 
      errCount = 1; 
     } 
    } 

    if (errCount == 0 || Request.responseXML != null) { 
     baseKey = Request.responseXML.text; 
    } else { 
     baseKey = "No key generated"; 
    } 
} 

if (lngLicensNr == null || lngNrOfUsers == null || lngAnnualWorkingTime == null || lngIncludedHours == null || productType == null || licenseType == null) { 
    alert('Not all parameters have been entered - it is not possible to generate a key without all parameters'); 
} 

在RU 12之前，代碼工作得很好，最後一個變量「baseKey」從Web服務中檢索出來。

但是，整個過程現在完全正常，因爲它似乎連接正常，但只是不從服務中檢索「baseKey」。

我認爲這個問題可能與已棄用的端點或模式有關，或者甚至只是不贊成使用的代碼返回並顯示值（即var xmlDoc = Request.responseXML;），但我不確定在哪裏解決。

如果任何人有任何想法或可以指向正確的方向，這將是一個很大的幫助。

Answer 1

我們也有類似的要求調用外部Web-service檢索聯繫人的latest contract，並顯示在Contact Form.

我們有我們自己的latest contract定義，是在一個webserivce實現。所以我必須在Contact Form Load上調用該web服務並提取數據。我找不到答案。所以我發佈我的解決方法。

我寫了一個plugin，執行檢索Contact。從我撥打Webservice的插件並更新聯繫人字段。

var javaScriptSerializer = new JavaScriptSerializer(); 
javaScriptSerializer.MaxJsonLength = 104857600; //200 MB unicode 

StringBuilder URI = new StringBuilder(); 
URI.Append(crmRestWebServiceUrl).Append(webServiceMethod); 
var request = (HttpWebRequest)WebRequest.Create(URI.ToString()); 
request.Method = "POST"; 
request.Accept = "application/json"; 
request.ContentType = "application/json; charset=utf-8"; 

//Serialize request object as JSON and write to request body 
    if (latestMembershipRequest != null) 
    { 
    var stringBuilder = new StringBuilder(); 
    javaScriptSerializer.Serialize(latestMembershipRequest, stringBuilder); 
    var requestBody = stringBuilder.ToString(); 
    request.ContentLength = requestBody.Length; 
    var streamWriter = new StreamWriter(request.GetRequestStream(), System.Text.Encoding.ASCII); 
streamWriter.Write(requestBody); 
streamWriter.Close(); 
    } 


    var response = request.GetResponse(); 

//Read JSON response stream and deserialize 
var streamReader = new System.IO.StreamReader(response.GetResponseStream()); 
var responseContent = streamReader.ReadToEnd().Trim(); 
LatestMembershipResponse latestMembershipResponse = javaScriptSerializer.Deserialize<LatestMembershipResponse>(responseContent); 

    ContactToUpdate["gr_membershiptitle"] = latestMembership.MembershipTitle; 
    ContactToUpdate["gr_membershipstartdate"] = Convert.ToDateTime(latestMembership.MembershipStartDate); 
    ContactToUpdate["gr_membershipenddate"] = Convert.ToDateTime(latestMembership.MembershipEndDate); 
    ContactToUpdate["gr_membershipstatus"] = latestMembership.MembershipStatus; 
    service.Update(ContactToUpdate);