从多个XML文档中读取数据用于显示webapi帮助文档

前言:

你先得知道HelpPageConfig文件,不知道说明你现在不需要这个,所以下文就不用看了,等知道了再看也不急.当然如果你很知道这个,下文也不用看了,因为你会了.

方法一:

new XmlDocumentationProvider(HttpContext.Current.Server.MapPath("~/App_Data/Documentation.xml"))

替换成

new XmlDocumentationProvider("PluginsFolder/*.xml")

改ctor函数让他支持多个XML文档

using System.Xml.Linq;
using System.Xml.XPath;

 XDocument finalDoc = null;
 foreach (string file in Directory.GetFiles(@"PluginsFolder", "*.xml"))
 {
    if(finalDoc == null)
    {
        finalDoc = XDocument.Load(File.OpenRead(file));
    }
    else
    {
        XDocument xdocAdditional = XDocument.Load(File.OpenRead(file));

        finalDoc.Root.XPathSelectElement("/doc/members")
                     .Add(xdocAdditional.Root.XPathSelectElement("/doc/members").Elements());
    }
}

// Supply the navigator that rest of the XmlDocumentationProvider code looks for
_documentNavigator = finalDoc.CreateNavigator();

方法二: 自定义一个支持从目录加载xml文档的XmlDocumentationProvider

public MultiXmlDocumentationProvider(string xmlDocFilesPath)
{
       XDocument finalDoc = null;
        foreach (string file in Directory.GetFiles(xmlDocFilesPath, "*.xml"))
        {
            using (var fileStream = File.OpenRead(file))
            {
                if (finalDoc == null)
                {
                    finalDoc = XDocument.Load(fileStream);
                }
                else
                {
                    XDocument xdocAdditional = XDocument.Load(fileStream);

                    finalDoc.Root.XPathSelectElement("/doc/members")
                        .Add(xdocAdditional.Root.XPathSelectElement("/doc/members").Elements());
                }
            }
        }

        // Supply the navigator that rest of the XmlDocumentationProvider code looks for
        _documentNavigator = finalDoc.CreateNavigator();
}

使用方法:

config.SetDocumentationProvider(new MultiXmlDocumentationProvider(HttpContext.Current.Server.MapPath("~/App_Data/")));

方法三:给默认的XmlDocumentationProvider加一个ctor

public XmlDocumentationProvider(IEnumerable<string> documentPaths)
{
    if (documentPaths.IsNullOrEmpty())
    {
        throw new ArgumentNullException(nameof(documentPaths));
    }
    XDocument fullDocument = null;
    foreach (var documentPath in documentPaths)
    {
        if (documentPath == null)
        {
            throw new ArgumentNullException(nameof(documentPath));
        }

        if (fullDocument == null)
        {
            using (var stream = File.OpenRead(documentPath))
            {
                fullDocument = XDocument.Load(stream);
            }
        }
        else
        {
            using (var stream = File.OpenRead(documentPath))
            {
                var additionalDocument = XDocument.Load(stream);
                fullDocument?.Root?.XPathSelectElement("/doc/members").Add(additionalDocument?.Root?.XPathSelectElement("/doc/members").Elements());
            }
        }
    }

    _documentNavigator = fullDocument?.CreateNavigator();
}

使用方法:

var xmlPaths = new[]
{
    HttpContext.Current.Server.MapPath("~/bin/Path.To.FirstNamespace.XML"),
    HttpContext.Current.Server.MapPath("~/bin/Path.To.OtherNamespace.XML")
};
var documentationProvider = new XmlDocumentationProvider(xmlPaths);
config.SetDocumentationProvider(documentationProvider);