asp.net mvc xml绑定action参数列表 -凯发k8官方网

昨天查看了 asp.net mvc 的生命周期，并没有找到类似的凯发k8官方网的解决方案。

 

不过今天在 stackoverflow上找到了凯发k8官方网的解决方案，没耐心的同学可以直接戳原文拷贝代码，原文地址：how to pass xml as post to an actionresult in asp mvc .net

 

看了外国同学的说明，才发现 mvc居然可以根据不同的请求 content type来选择 valueprovider，这样提供了很好的扩展。

mvc本身提供了 jsonvalueproviderfactory，顾名思义就是为 json服务的。那么在这里我们需要提供为 xml服务的valueproviderfactory。

 

第一步：创建 xmlvalueproviderfactory

public class xmlvalueproviderfactory : valueproviderfactory{private static void addtobackingstore(dictionary<string, object> backingstore, string prefix, xelement xmldoc){// check the keys to see if this is an array or an objectvar uniquekeys = new list<string>();int totalcount = 0;foreach (xelement element in xmldoc.elements()){if (!uniquekeys.contains(element.name.localname))uniquekeys.add(element.name.localname);totalcount ;}bool isarray;if (uniquekeys.count == 1){isarray = true;}else if (uniquekeys.count == totalcount){isarray = false;}else{// not sure how to deal with a xml doc that has some keys the same, but not all// for now don't process this nodereturn;}// add the elements to the backing storeint elementcount = 0;foreach (xelement element in xmldoc.elements()){if (element.haselements){if (isarray){// omit local name for arrays and add index insteadaddtobackingstore(backingstore, $"{prefix}[{elementcount}]", element);}else{addtobackingstore(backingstore, makepropertykey(prefix, element.name.localname), element);}}else{backingstore.add(makepropertykey(prefix, element.name.localname), element.value);}elementcount ;}}private static xdocument getdeserializedxml(controllercontext controllercontext){var contenttype = controllercontext.httpcontext.request.contenttype;if (!contenttype.startswith("text/xml", stringcomparison.ordinalignorecase)&& !contenttype.startswith("application/xml", stringcomparison.ordinalignorecase)){// are there any other xml mime types that are used? (add them here)// not xml requestreturn null;}xdocument xml;try{// dtd processing disabled to stop xml bomb attack - if you require dtd processing, read this first: http://msdn.microsoft.com/en-us/magazine/ee335713.aspxvar xmlreadersettings = new xmlreadersettings {dtdprocessing = dtdprocessing.prohibit};var xmlreader = xmlreader.create(controllercontext.httpcontext.request.inputstream, xmlreadersettings);xml = xdocument.load(xmlreader);}catch (exception){return null;}if (xml.firstnode == null){// no xml datareturn null;}return xml;}private static string makearraykey(string prefix, int index){return prefix "[" index.tostring(cultureinfo.invariantculture) "]";}private static string makepropertykey(string prefix, string propertyname){return (prefix.isnullorempty()) ? propertyname : prefix "." propertyname;}#region valueproviderfactory memberspublic override ivalueprovider getvalueprovider(controllercontext controllercontext){var xmldata = getdeserializedxml(controllercontext);if (xmldata == null)return null;var backingstore = new dictionary<string, object>(stringcomparer.ordinalignorecase);addtobackingstore(backingstore, string.empty, xmldata.root);return new dictionaryvalueprovider<object>(backingstore, cultureinfo.currentculture);}#endregion}

 

该段代码属于网上抄袭，基本没有改，在下觉得这样已经满足需求了，原文地址：sending xml to an asp.net mvc action method argument

ps：如果涉及凯发k8官方网的版权问题，请告知在下。

 

第二步：在 global.asmx.cs 的 application_start 方法中注册 valueproviderfactory

 valueproviderfactories.factories.add(new jsonvalueproviderfactory()); valueproviderfactories.factories.add(new xmlvalueproviderfactory()); 

 

亲测可用，如有问题，请留言。

转载于:https://www.cnblogs.com/currention/p/5169597.html

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