.net前后台开发知识集

Swagger使用

2020-03-17  本文已影响0人  飞天猪Pony

1、创建webapi项目

2、引用swagger nuget包

Swashbuckle


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3、添加接口注释

由于默认情况下是不显示注释的,需要收到添加
项目属性-->生成-->XML 文档文件,最后重新生成解决方案,bin文件夹里就多一个SwaggerDemo.xml文件


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修改App_Start里的SwaggerConfig.cs文件

添加xml解析路径(默认是有的,只是注释掉了)
//c.IncludeXmlComments(GetXmlCommentsPath());
    //设置接口描述xml路径地址
    c.IncludeXmlComments(string.Format("{0}/bin/SwaggerDemo.xml", System.AppDomain.CurrentDomain.BaseDirectory));
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4、汉化问题

经过上面的操作,已经完成了所需功能。但是还有几点问题需要完善
1.界面的说明都是英文的需要进行汉化
2.控制器没有描述

汉化步骤

在SwaggerConfig.cs文件里配置

 .EnableSwaggerUi(c =>{
     //c.InjectJavaScript(thisAssembly, "Swashbuckle.Dummy.SwaggerExtensions.testScript1.js")
 });

这段代码的作用是向页面输出引用Swashbuckle.Dummy.SwaggerExtensions.testScript1.js文件,或许会疑问js文件路径为什么这么奇怪。那是因为Swagger将资源文件都嵌入到dll中了,我们常用的资源文件都是以内容的方式放在项目中的,我们也可以以嵌入的资源方式引入到项目中.
这里需要我们自己添加中文语言包,如下配置

//c.InjectJavaScript(thisAssembly, "Swashbuckle.Dummy.SwaggerExtensions.testScript1.js");
  //路径规则,项目命名空间.文件夹名称.js文件名称
  c.InjectJavaScript(thisAssembly, "SwaggerDemo.Scripts.swaggerui.swagger_lang.js");
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这里注意的是生成操作这里必须是嵌入的资源
右击swagger_lang.js文件——属性——生成操作选择(嵌入的资源)


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汉化swagger_lang.js代码如下

///    <summary>
/// 中文转换
///    </summary>
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) {
                                $(item).children(".heading").children(".options").prepend('<li class="controller-summary" title="' + strSummary + '">' + strSummary + '</li>');
                            }
                        }
                    });
                }
            });
        },

        //尝试将英文转换成中文
        _tryTranslate = function () {
            $('[data-sw-translate]').each(function () {
                $(this).html(_getLangDesc($(this).html()));
                $(this).val(_getLangDesc($(this).val()));
                $(this).attr('title', _getLangDesc($(this).attr('title')));
            });
        },
        _getLangDesc = function (word) {
            return _words[$.trim(word)] !== undefined ? _words[$.trim(word)] : word;
        };

    return {
        Translator: function () {
            document.title = "API描述文档";
            $('body').append('<style type="text/css">.controller-summary{color:#10a54a !important;word-break:keep-all;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px;text-align:right;cursor:default;} </style>');
            $("#logo").html("接口描述").attr("href", "/Home/Index");
            //设置控制器描述
            _setControllerSummary();
            _translator2Cn();
        }
    }
})();
//执行转换
SwaggerTranslator.Translator();
控制器描述和接口文档缓存

新建一个CachingSwaggerProvider.cs类


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CachingSwaggerProvider 类代码如下

public class CachingSwaggerProvider : ISwaggerProvider
    {
        private static ConcurrentDictionary<string, SwaggerDocument> _cache =
            new ConcurrentDictionary<string, SwaggerDocument>();

        private readonly ISwaggerProvider _swaggerProvider;

        public CachingSwaggerProvider(ISwaggerProvider swaggerProvider)
        {
            _swaggerProvider = swaggerProvider;
        }

        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;
        }

        /// <summary>
        /// 从API文档中读取控制器描述
        /// </summary>
        /// <returns>所有控制器描述</returns>
        public static ConcurrentDictionary<string, string> GetControllerDesc()
        {
            string xmlpath = string.Format("{0}/bin/SwaggerDemo.XML", System.AppDomain.CurrentDomain.BaseDirectory);
            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;
        }
    }

在SwaggerConfig.cs 类中打开

 c.CustomProvider((defaultProvider) => new CachingSwaggerProvider(defaultProvider));
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接下来运行看下效果

运行路径:https://localhost:44338/swagger

下面是我自己写的一个接口方法,现在运行会有一个问题,下面会有说明
这就是运行的效果,这里的注释也有了


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有个一问题就是接口里没有显示出来Action,只显示了Controller

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解决方法:
发现swashbuckle 是根据我们在路由配置WebApiConfig中的模版来生成的。如,默认的配置代码为:

 public static void Register(HttpConfiguration config)
        {
            // Web API 配置和服务
            // Web API 路由
            config.MapHttpAttributeRoutes();
            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional }
            );
        }

要在swagger文档中显示接口的方法名,只需修改路由模版就可以了。将id改为action即可,修改后的代码如下:

 public static void Register(HttpConfiguration config)
        {
            // Web API 配置和服务
            // Web API 路由
            config.MapHttpAttributeRoutes();
            config.Routes.MapHttpRoute(
                name: "DefaultApi",
                routeTemplate: "api/{controller}/{action}",
                defaults: new { id = RouteParameter.Optional }
            );
        }
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再运行看下效果:Action显示出来了


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