.net framework中webapi使用swagger进行接口文档展示

第一步：在nuget程序包管理中搜索“Swashbuckle”包，然后进行安装（注：如果是.net core api请安装Sawshbuckle aspnetcore）。

第二步：打开项目App_Start文件夹，修改SwaggerConfig.cs配置文件

我这里仅仅是修改swagger文档的标题

第三步：创建主项目的xml注释文档：

右键项目→属性→生成→选中下方的 "XML文档文件" 然后保存

如果是其他类库项目，比如实体类库，用于创建接口请求参数实体或返回参数实体项目，需要在swagger文档中展示备注时，可在启动项中添加配置：

c.IncludeXmlComments(XmlCommentsHelper.XmlCommentsPath);
 
c.IncludeXmlComments(XmlCommentsHelper.ModelXmlCommentsPath);

    /// 
    /// 需要展示在swagger文档中实体XML路径
    /// 
    public class XmlCommentsHelper
    {
 
 
        /// 
        /// XML注释路径
        /// 
        public static string XmlCommentsPath
        {
            get
            {
                string path = string.Format("{0}/bin/MustWinLotteryWebApi.xml", System.AppDomain.CurrentDomain.BaseDirectory);
                return path;
            }
        }
 
        /// 
        /// 模型XML注释路径
        /// 
        public static string ModelXmlCommentsPath
        {
            get
            {
                string path = string.Format("{0}/bin/MustWinLotteryWebApi.Model.xml", System.AppDomain.CurrentDomain.BaseDirectory);
                return path;
            }
        }
    }

完成以上操作后，可直接启动webapi项目，然后在接口地址后面输入 /swagger   （默认是英文的，如果需要中文显示  还需要做汉化处理）

以下是对swagger文档进行汉化处理方法：

第一步：在nuget程序包管理中搜索“Swagger.Net”包和“Swagger.Net.UI”，然后进行安装。

第二步：安装完成后，注释掉SwaggerNet类中的assembly

第三步：创建一个“SwaggerControllerDescProvider”类，用于对swagger文档中的内容进行汉化处理。

    /// 
    /// swagger显示控制器的描述
    /// 
    public class SwaggerControllerDescProvider : ISwaggerProvider
    {
        private readonly ISwaggerProvider _swaggerProvider;
        private static ConcurrentDictionary<string, SwaggerDocument> _cache = new ConcurrentDictionary<string, SwaggerDocument>();
        private readonly string _xml;
        /// 
        /// 
        /// 
        /// 
        /// xml文档路径
        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;
            //只读取一次
            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;
        }
 
        /// 
        /// 从API文档中读取控制器描述
        /// 
        /// 所有控制器描述
        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"))
                        {
                            //获取控制器注释
                            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;
        }
    }

第四步：在SwaggerUI文件夹中，创建一个swagger_lang.js的js,用于对swagger进行汉化处理（注：这个文件必须添加，否则汉化将失败）

swagger_lang.js 文件中的js内容如下：

/// 
/// 中文转换
/// 
var SwaggerTranslator = (function () {
    //定时执行检测是否转换成中文,最多执行500次  即500*50/1000=25s
    var iexcute = 0,
        //中文语言包
        _words = {
            "Warning: Deprecated": "警告：已过时",
            "Implementation Notes": "实现备注",
            "Response Class": "响应类",
            "Status": "状态",
            "Parameters": "参数",
            "Parameter": "参数",
            "Value": "值",
            "Description": "描述",
            "Parameter Type": "参数类型",
            "Data Type": "数据类型",
            "Response Messages": "响应消息",
            "HTTP Status Code": "HTTP状态码",
            "Reason": "原因",
            "Response Model": "响应模型",
            "Request URL": "请求URL",
            "Response Body": "响应体",
            "Response Code": "响应码",
            "Response Headers": "响应头",
            "Hide Response": "隐藏响应",
            "Headers": "头",
            "Try it out!": "试一下！",
            "Show/Hide": "显示/隐藏",
            "List Operations": "显示操作",
            "Expand Operations": "展开操作",
            "Raw": "原始",
            "can't parse JSON.  Raw result": "无法解析JSON. 原始结果",
            "Model Schema": "模型架构",
            "Model": "模型",
            "apply": "应用",
            "Username": "用户名",
            "Password": "密码",
            "Terms of service": "服务条款",
            "Created by": "创建者",
            "See more at": "查看更多：",
            "Contact the developer": "联系开发者",
            "api version": "api版本",
            "Response Content Type": "响应Content Type",
            "fetching resource": "正在获取资源",
            "fetching resource list": "正在获取资源列表",
            "Explore": "浏览",
            "Show Swagger Petstore Example Apis": "显示 Swagger Petstore 示例 Apis",
            "Can't read from server.  It may not have the appropriate access-control-origin settings.": "无法从服务器读取。可能没有正确设置access-control-origin。",
            "Please specify the protocol for": "请指定协议：",
            "Can't read swagger JSON from": "无法读取swagger JSON于",
            "Finished Loading Resource Information. Rendering Swagger UI": "已加载资源信息。正在渲染Swagger UI",
            "Unable to read api": "无法读取api",
            "from path": "从路径",
            "Click to set as parameter value": "点击设置参数",
            "server returned": "服务器返回"
        },
 
        //定时执行转换
        _translator2Cn = function () {
            if ($("#resources_container .resource").length > 0) {
                _tryTranslate();
            }
 
            if ($("#explore").text() == "Explore" && iexcute < 500) {
                iexcute++;
                setTimeout(_translator2Cn, 50);
            }
        },
 
        //设置控制器注释
        _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) {
                                var option = $(item).children(".heading").children(".options");
                                if ($(option).children(".controller-summary").length > 0) {
                                    $(option).children(".controller-summary").remove();
                                }
                                $(option).prepend('
'">' + strSummary + '
');