swagger webapi控制器註釋不顯示

swagger是webapi文檔描述及調試工具，要在asp.net mvc中使用swagger，須要安裝Swashbuckle.Core這個包,安裝好後會在app_start中生成SwaggerConfig.cs文件，修改Register方法在文件中指定webapi項目生成的xml文件所在路徑，詳細配置請參考

https://github.com/domaindrivendev/Swashbuckle

using System.Web.Http;
using WebActivatorEx;
using Nop.Web;
using Swashbuckle.Application;
using System.Linq;
using System.Reflection;
using Nop.Web.App_Start;
using System.Xml.Linq;
using System.Xml.XPath;

[assembly: PreApplicationStartMethod(typeof(SwaggerConfig), "Register")]

namespace Nop.Web
{
    public class SwaggerConfig
    {
        public static void Register()
        {
            var xmlFile = string.Format("{0}/Plugins/Misc.Client.WebApi/Nop.Plugin.Misc.Client.WebApi.XML", System.AppDomain.CurrentDomain.BaseDirectory);
            GlobalConfiguration.Configuration.EnableSwagger(c =>
            {
                c.SingleApiVersion("v1", "優裏可webapi");
 c.ResolveConflictingActions(apiDescriptions => apiDescriptions.First());
                if (System.IO.File.Exists(xmlFile)) { c.IncludeXmlComments(xmlFile); }
            });
        }
    }
}

 

按上述設置後，能夠顯示action上的註釋，輸出輸出實體的註釋等，看起是否是很爽。

網上有不少文章講如何漢化，如何結合oauth2.0認證調試接口，但彷佛沒有人注意到控制器上的註釋不會顯示(下圖紅框中的註釋是改造之後纔有的)

 

要達到上述效果，具體步驟以下：

1.定義一個provider實現ISwaggerProvider接口

using Swashbuckle.Swagger;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;
using System.Xml;

namespace Nop.Web.App_Start
{
    /// <summary>
    /// swagger顯示控制器的描述
    /// </summary>
    public class SwaggerControllerDescProvider : ISwaggerProvider
    {
        private readonly ISwaggerProvider _swaggerProvider;
        private static ConcurrentDictionary<string, SwaggerDocument> _cache =new ConcurrentDictionary<string, SwaggerDocument>();
        private readonly string _xml;
        /// <summary>
        /// 
        /// </summary>
        /// <param name="swaggerProvider"></param>
        /// <param name="xml">xml文檔路徑</param>
        public SwaggerControllerDescProvider(ISwaggerProvider swaggerProvider,string xml)
        {
            _swaggerProvider = swaggerProvider;
            _xml = xml;
        }

        public SwaggerDocument GetSwagger(string rootUrl, string apiVersion)
        {

            var cacheKey = string.Format("{0}_{1}", rootUrl, apiVersion);
            SwaggerDocument srcDoc = null;
            //只讀取一次
            if (!_cache.TryGetValue(cacheKey, out srcDoc))
            {
                srcDoc = _swaggerProvider.GetSwagger(rootUrl, apiVersion);

                srcDoc.vendorExtensions = new Dictionary<string, object> { { "ControllerDesc", GetControllerDesc() } };
                _cache.TryAdd(cacheKey, srcDoc);
            }
            return srcDoc;
        }

        /// <summary>
        /// 從API文檔中讀取控制器描述
        /// </summary>
        /// <returns>全部控制器描述</returns>
        public  ConcurrentDictionary<string, string> GetControllerDesc()
        {
            string xmlpath = _xml;
            ConcurrentDictionary<string, string> controllerDescDict = new ConcurrentDictionary<string, string>();
            if (File.Exists(xmlpath))
            {
                XmlDocument xmldoc = new XmlDocument();
                xmldoc.Load(xmlpath);
                string type = string.Empty, path = string.Empty, controllerName = string.Empty;

                string[] arrPath;
                int length = -1, cCount = "Controller".Length;
                XmlNode summaryNode = null;
                foreach (XmlNode node in xmldoc.SelectNodes("//member"))
                {
                    type = node.Attributes["name"].Value;
                    if (type.StartsWith("T:"))
                    {
                        //控制器
                        arrPath = type.Split('.');
                        length = arrPath.Length;
                        controllerName = arrPath[length - 1];
                        if (controllerName.EndsWith("Controller"))
                        {
                            //獲取控制器註釋
                            summaryNode = node.SelectSingleNode("summary");
                            string key = controllerName.Remove(controllerName.Length - cCount, cCount);
                            if (summaryNode != null && !string.IsNullOrEmpty(summaryNode.InnerText) && !controllerDescDict.ContainsKey(key))
                            {
                                controllerDescDict.TryAdd(key, summaryNode.InnerText.Trim());
                            }
                        }
                    }
                }
            }
            return controllerDescDict;
        }
    }
}

 

2.定義一個JS文件,作成嵌入資源，這個js文件的功能主要有兩個，一個是漢化，另外一個就是在界面上顯示控制器的描述文字

 

'use strict';
window.SwaggerTranslator = {
    _words: [],

    translate: function () {
        var $this = this;
        $('[data-sw-translate]').each(function () {
            $(this).html($this._tryTranslate($(this).html()));
            $(this).val($this._tryTranslate($(this).val()));
            $(this).attr('title', $this._tryTranslate($(this).attr('title')));
        });
    },

    setControllerSummary : function () {
        $.ajax({
            type: "get",
            async: true,
            url: $("#input_baseUrl").val(),
            dataType: "json",
            success: function (data) {
                var summaryDict = data.ControllerDesc;
                var id, controllerName, strSummary;
                $("#resources_container .resource").each(function (i, item) {
                    id = $(item).attr("id");
                    if (id) {
                        controllerName = id.substring(9);
                        strSummary = summaryDict[controllerName];
                        if (strSummary) {
                            $(item).children(".heading").children(".options").first().prepend('<li class="controller-summary" title="' + strSummary + '">' + strSummary + '</li>');
                        }
                    }
                });
            }
        });
    },
    _tryTranslate: function (word) {
        return this._words[$.trim(word)] !== undefined ? this._words[$.trim(word)] : word;
    },

    learn: function (wordsMap) {
        this._words = wordsMap;
    }
};


/* jshint quotmark: double */
window.SwaggerTranslator.learn({
    "Warning: Deprecated": "警告：已過期",
    "Implementation Notes": "實現備註",
    "Response Class": "響應類",
    "Status": "狀態",
    "Parameters": "參數",
    "Parameter": "參數",
    "Value": "值",
    "Description": "描述",
    "Parameter Type": "參數類型",
    "Data Type": "數據類型",
    "Response Messages": "響應消息",
    "HTTP Status Code": "HTTP狀態碼",
    "Reason": "緣由",
    "Response Model": "響應模型",
    "Request URL": "請求URL",
    "Response Body": "響應體",
    "Response Code": "響應碼",
    "Response Headers": "響應頭",
    "Hide Response": "隱藏響應",
    "Headers": "頭",
    "Try it out!": "試一下！",
    "Show/Hide": "顯示/隱藏",
    "List Operations": "顯示操做",
    "Expand Operations": "展開操做",
    "Raw": "原始",
    "can't parse JSON.  Raw result": "沒法解析JSON. 原始結果",
    "Model Schema": "模型架構",
    "Model": "模型",
    "apply": "應用",
    "Username": "用戶名",
    "Password": "密碼",
    "Terms of service": "服務條款",
    "Created by": "建立者",
    "See more at": "查看更多：",
    "Contact the developer": "聯繫開發者",
    "api version": "api版本",
    "Response Content Type": "響應Content Type",
    "fetching resource": "正在獲取資源",
    "fetching resource list": "正在獲取資源列表",
    "Explore": "瀏覽",
    "Show Swagger Petstore Example Apis": "顯示 Swagger Petstore 示例 Apis",
    "Can't read from server.  It may not have the appropriate access-control-origin settings.": "沒法從服務器讀取。可能沒有正確設置access-control-origin。",
    "Please specify the protocol for": "請指定協議：",
    "Can't read swagger JSON from": "沒法讀取swagger JSON於",
    "Finished Loading Resource Information. Rendering Swagger UI": "已加載資源信息。正在渲染Swagger UI",
    "Unable to read api": "沒法讀取api",
    "from path": "從路徑",
    "server returned": "服務器返回"
});
$(function () {
    window.SwaggerTranslator.translate();
    window.SwaggerTranslator.setControllerSummary();
});

 

3.修改App_Start中的SwaggerConfig.cs文件，主要代碼有兩行

c.CustomProvider((defaultProvider) => new SwaggerControllerDescProvider(defaultProvider,xmlFile));

.EnableSwaggerUi("doc/{*assetPath}", b => b.InjectJavaScript(Assembly.GetExecutingAssembly(), "Nop.Web.Scripts.Swagger-Custom.js"));

doc/{*assetPath}會將swagger的訪問地址改成doc/index

Nop.Web.Scripts.Swagger-Custom.js 這是咱們在第二步中定義的資源文件，資源文件名的命名規則以下：文件所在項目的命名空間.文件徑路.文件名

最終代碼以下：

using System.Web.Http;
using WebActivatorEx;
using Nop.Web;
using Swashbuckle.Application;
using System.Linq;
using System.Reflection;
using Nop.Web.App_Start;
using System.Xml.Linq;
using System.Xml.XPath;

[assembly: PreApplicationStartMethod(typeof(SwaggerConfig), "Register")]

namespace Nop.Web
{
    public class SwaggerConfig
    {
        public static void Register()
        {
            var xmlFile = string.Format("{0}/Plugins/Misc.Client.WebApi/Nop.Plugin.Misc.Client.WebApi.XML", System.AppDomain.CurrentDomain.BaseDirectory);
            GlobalConfiguration.Configuration.EnableSwagger(c =>
            {
                c.SingleApiVersion("v1", "優裏可webapi");
                if (System.IO.File.Exists(xmlFile)) { c.IncludeXmlComments(xmlFile); }
 c.ResolveConflictingActions(apiDescriptions => apiDescriptions.First());
                c.CustomProvider((defaultProvider) => new SwaggerControllerDescProvider(defaultProvider,xmlFile));
            })
           //修改訪問地址爲doc/index
           //注入自定義的js文件
           .EnableSwaggerUi("doc/{*assetPath}", b => b.InjectJavaScript(Assembly.GetExecutingAssembly(), "Nop.Web.Scripts.Swagger-Custom.js"));
        }
    }
}