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(更新时间)2021年5月28日 商城高并发秒杀系统(.NET Core版) 04-中台调用组件的封装
发布日期：2021-06-29 15:16:34 浏览次数：3 分类：技术文章

本文共 20664 字，大约阅读时间需要 68 分钟。

一：中台调用组件的封装

/// ///  中台ServiceCollection扩展方法/// public static class MiddlewareServiceCollectionExtensions{
       ///     /// 添加中台    ///     /// 
       ///     /// 
       public static IServiceCollection AddMiddleware(this IServiceCollection services)    {
           AddMiddleware(services, options => {
   });        return services;    }    ///     /// 添加中台    ///     /// 
       ///     /// 
       public static IServiceCollection AddMiddleware(this IServiceCollection services, Action
   
     options)    {
           MiddlewareOptions middlewareOptions = new MiddlewareOptions();        options(middlewareOptions);        // 1、注册到IOC        services.Configure
    
     (options);        // 2、添加HttpClient        // services.AddHttpClient(middlewareOptions.HttpClientName);        services.AddPollyHttpClient(middlewareOptions.HttpClientName, middlewareOptions.pollyHttpClientOptions);        // 3、注册中台        services.AddSingleton
     
      ();        return services;    }}

二：配置选项

/// /// 中台配置选项/// public class MiddlewareOptions{
       public MiddlewareOptions()    {
           this.HttpClientName = "Micro";        pollyHttpClientOptions = options => {
    };    }    ///     /// polly熔断降级选项    ///     public Action
   
     pollyHttpClientOptions {
    get; }    /// 
        /// 客户端名称    ///     public string HttpClientName {
    set; get; }}

三：中台服务(服务交互)

/// /// 中台服务(服务交互)/// public class MiddleService : IMiddleService{
       private readonly IMiddleTransport middleTransport;    private readonly IMiddleUrl middleUrl;    public MiddleService(IMiddleTransport middleTransport, IMiddleUrl middleUrl)    {
           this.middleTransport = middleTransport;        this.middleUrl = middleUrl;    }    public void Delete(string urlShcme, string serviceName, string serviceLink, IDictionary
   
     middleParam)    {
           // 1、获取中台url        string url = middleUrl.GetMiddleUrl(urlShcme, serviceName);        // 2、请求        MiddleResult middleResult = middleTransport.Delete(url + serviceLink, middleParam);        // 3、判断是否成功        IsSuccess(middleResult);    }    public IList
    
      GetList
     
      (string urlShcme, string serviceName, string serviceLink, IDictionary
      
        middleParam)        where T : new()    {
           // 1、获取中台url        string url = middleUrl.GetMiddleUrl(urlShcme, serviceName);        // 2、请求        MiddleResult middleResult = middleTransport.Get(url + serviceLink, middleParam);        // 3、判断是否成功        IsSuccess(middleResult);        // 4、结果进行转换对象        return ConvertUtil.MiddleResultToList
       
        (middleResult);    }    public T Get
        
         (string urlShcme, string serviceName, string serviceLink, IDictionary
         
           middleParam) where T : new() { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Get(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); // 4、结果进行转换对象 return ConvertUtil.MiddleResultToObject
          
           (middleResult); } public void Post(string urlShcme, string serviceName, string serviceLink, IDictionary
           
             middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Post(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); } public dynamic PostDynamic(string urlShcme, string serviceName, string serviceLink, dynamic middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.PostDynamic(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); return middleResult.Result; } public void Post(string urlShcme, string serviceName, string serviceLink, IList
            
             
              > middleParams) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Post(url + serviceLink, middleParams); // 3、判断是否成功 IsSuccess(middleResult); } public void Put(string urlShcme, string serviceName, string serviceLink, IDictionary
              
                middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Put(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); } public dynamic PutDynamic(string urlShcme, string serviceName, string serviceLink, dynamic middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.PutDynamic(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); return middleResult.Result; } public void Put(string urlShcme, string serviceName, string serviceLink, IList
               
                
                 > middleParams) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Put(url + serviceLink, middleParams); // 3、判断是否成功 IsSuccess(middleResult); } private void IsSuccess(MiddleResult middleResult) { if (!middleResult.ErrorNo.Equals("0")) { throw new FrameException(middleResult.ErrorNo, middleResult.ErrorInfo); } } public IList
                 
                  
                   > GetList(string urlShcme, string serviceName, string serviceLink, IDictionary
                   
                     middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Get(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); return middleResult.resultList; } public IDictionary
                    
                      Get(string urlShcme, string serviceName, string serviceLink, IDictionary
                     
                       middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Get(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); return middleResult.resultDic; } /// 
                       /// 返回动态结果 ///  /// 
                       /// 
                       /// 
                       /// 
                       /// 
                       public dynamic GetDynamic(string urlShcme, string serviceName, string serviceLink, IDictionary
                      
                        middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Get(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); return middleResult.Result; } public dynamic DeleteDynamic(string urlShcme, string serviceName, string serviceLink, IDictionary
                       
                         middleParam) { // 1、获取中台url string url = middleUrl.GetMiddleUrl(urlShcme, serviceName); // 2、请求 MiddleResult middleResult = middleTransport.Delete(url + serviceLink, middleParam); // 3、判断是否成功 IsSuccess(middleResult); return middleResult.Result; }}

四：中台传输

/// /// Http中台传输/// public class HttpMiddleTransport : IMiddleTransport{
       private IHttpClientFactory httpClientFactory;    private const string HttpConst = "mrico";    public HttpMiddleTransport(IHttpClientFactory httpClientFactory)    {
           this.httpClientFactory = httpClientFactory;    }    public MiddleResult Delete(string middleUrl, IDictionary
   
     middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、Delete请求        HttpResponseMessage httpResponseMessage = httpClient.DeleteAsync(middleUrl).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Get(string middleUrl, IDictionary
    
      middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、参数转换为url方式        string urlParam = HttpParamUtil.DicToHttpUrlParam(middleParam);        // 3、Get请求        HttpResponseMessage httpResponseMessage = httpClient.GetAsync(middleUrl + urlParam).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Post(string middleUrl, IDictionary
     
       middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、转换成json参数        HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json");        // 3、Post请求        HttpResponseMessage httpResponseMessage = httpClient.PostAsync(middleUrl, httpContent).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Post(string middleUrl, IList
      
       
        > middleParams)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、转换成json参数        HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParams), Encoding.UTF8, "application/json");        // 3、Post请求        HttpResponseMessage httpResponseMessage = httpClient.PostAsync(middleUrl, httpContent).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult PostDynamic(string middleUrl, dynamic middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、转换成json参数        HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json");        // 3、Post请求        HttpResponseMessage httpResponseMessage = httpClient.PostAsync(middleUrl, httpContent).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Put(string middleUrl, IDictionary
        
          middleParam) { // 1、获取httpClient HttpClient httpClient = httpClientFactory.CreateClient(HttpConst); // 2、转换成json参数 HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json"); // 3、Put请求 HttpResponseMessage httpResponseMessage = httpClient.PutAsync(middleUrl, httpContent).Result; return GetMiddleResult(httpResponseMessage); } public MiddleResult Put(string middleUrl, IList
         
          
           > middleParams) { // 1、获取httpClient HttpClient httpClient = httpClientFactory.CreateClient(HttpConst); // 2、转换成json参数 HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParams), Encoding.UTF8, "application/json"); // 3、Put请求 HttpResponseMessage httpResponseMessage = httpClient.PutAsync(middleUrl, httpContent).Result; return GetMiddleResult(httpResponseMessage); } public MiddleResult PutDynamic(string middleUrl, dynamic middleParam) { // 1、获取httpClient HttpClient httpClient = httpClientFactory.CreateClient(HttpConst); // 2、转换成json参数 HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json"); // 3、Put请求 HttpResponseMessage httpResponseMessage = httpClient.PutAsync(middleUrl, httpContent).Result; return GetMiddleResult(httpResponseMessage); } private MiddleResult GetMiddleResult(HttpResponseMessage httpResponseMessage) { // 3、将HttpResponseMessage转换成MiddleResult if (httpResponseMessage.StatusCode.Equals(HttpStatusCode.OK) || httpResponseMessage.StatusCode.Equals(HttpStatusCode.Created) || httpResponseMessage.StatusCode.Equals(HttpStatusCode.Accepted)) { string httpJsonString = httpResponseMessage.Content.ReadAsStringAsync().Result; // 3.1 创建MiddleResult return MiddleResult.JsonToMiddleResult(httpJsonString); } else { throw new FrameException($"{ HttpConst}服务调用错误:{ httpResponseMessage.Content.ReadAsStringAsync().ToString()}"); } }}
          
         
        
       
      
     
    
   
/// /// 中台传输/// public interface IMiddleTransport{
       ///     /// Get请求    ///     /// 中台链接    /// 中台参数    /// 
       public MiddleResult Get(string middleUrl, IDictionary
   
     middleParam);    /// 
        /// Post请求    ///     /// 
    中台链接    /// 
    中台参数    /// 
        public MiddleResult Post(string middleUrl, IDictionary
    
      middleParam);    /// 
         /// Post请求，动态参数    ///     /// 
     中台链接    /// 
     中台参数    /// 
         public MiddleResult PostDynamic(string middleUrl, dynamic middleParam);    /// 
         /// Post请求    ///     /// 
     中台链接    /// 
     中台集合参数    /// 
         public MiddleResult Post(string middleUrl, IList
     
      
       > middleParams);    /// 
           /// Delete请求    ///     /// 
       中台链接    /// 
       中台参数    /// 
           public MiddleResult Delete(string middleUrl, IDictionary
       
         middleParam);    /// 
         /// Put请求 ///     /// 
        中台链接    /// 
        中台参数    /// 
            public MiddleResult Put(string middleUrl, IDictionary
        
          middleParam); /// 
          /// Put请求，动态参数 ///  /// 
         中台链接 /// 
         中台参数 /// 
          public MiddleResult PutDynamic(string middleUrl, dynamic middleParam); /// 
          /// Put请求 ///  /// 
         中台链接 /// 
         中台集合参数 /// 
          public MiddleResult Put(string middleUrl, IList
         
          
           > middleParams);}

五：中台URL

/// /// 中台url/// public interface IMiddleUrl{
       ///     ///  获取中台Url    ///     /// 中台url    /// 服务名称    /// 
       public string GetMiddleUrl(string urlShcme, string serviceName);}
/// /// 默认获取Url/// public class DefaultMiddleUrl : IMiddleUrl{
       private readonly IServiceDiscovery serviceDiscovery;    private readonly ILoadBalance loadBalance;    public DefaultMiddleUrl(IServiceDiscovery serviceDiscovery, ILoadBalance loadBalance)    {
           this.serviceDiscovery = serviceDiscovery;        this.loadBalance = loadBalance;    }    public string GetMiddleUrl(string urlShcme, string serviceName)    {
           // 1、获取服务url        IList
   
     serviceUrls = serviceDiscovery.Discovery(serviceName).Result;        // 2、url负载均衡        ServiceUrl serviceUrl = loadBalance.Select(serviceUrls);        // 3、创建url        StringBuilder stringBuilder = new StringBuilder();        stringBuilder.Append(urlShcme);        stringBuilder.Append("://");        stringBuilder.Append(serviceUrl.Url);        return stringBuilder.ToString();    }}

六：相关依赖的类文件

/// /// 中台服务/// public interface IMiddleService{
       ///     /// Get请求    ///     /// 中台链接    /// 中台参数    /// 
       public MiddleResult Get(string middleUrl, IDictionary
   
     middleParam);    /// 
        /// Post请求    ///     /// 
    中台链接    /// 
    中台参数    /// 
        public MiddleResult Post(string middleUrl, IDictionary
    
      middleParam);    /// 
         /// Post请求，动态参数    ///     /// 
     中台链接    /// 
     中台参数    /// 
         public MiddleResult PostDynamic(string middleUrl, dynamic middleParam);    /// 
         /// Post请求    ///     /// 
     中台链接    /// 
     中台集合参数    /// 
         public MiddleResult Post(string middleUrl, IList
     
      
       > middleParams);    /// 
           /// Delete请求    ///     /// 
       中台链接    /// 
       中台参数    /// 
           public MiddleResult Delete(string middleUrl, IDictionary
       
         middleParam);    /// 
         /// Put请求 ///     /// 
        中台链接    /// 
        中台参数    /// 
            public MiddleResult Put(string middleUrl, IDictionary
        
          middleParam); /// 
          /// Put请求，动态参数 ///  /// 
         中台链接 /// 
         中台参数 /// 
          public MiddleResult PutDynamic(string middleUrl, dynamic middleParam); /// 
          /// Put请求 ///  /// 
         中台链接 /// 
         中台集合参数 /// 
          public MiddleResult Put(string middleUrl, IList
         
          
           > middleParams);}
          
         
        
       
      
     
    
   
/// /// Http中台请求结果/// public class HttpMiddleService : IMiddleService{
       private IHttpClientFactory httpClientFactory;    private const string HttpConst = "mrico";    public HttpMiddleService(IHttpClientFactory httpClientFactory)    {
           this.httpClientFactory = httpClientFactory;    }    public MiddleResult Delete(string middleUrl, IDictionary
   
     middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、Delete请求        HttpResponseMessage httpResponseMessage = httpClient.DeleteAsync(middleUrl).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Get(string middleUrl, IDictionary
    
      middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、参数转换为url方式        string urlParam = HttpParamUtil.DicToHttpUrlParam(middleParam);        // 3、Get请求        HttpResponseMessage httpResponseMessage = httpClient.GetAsync(middleUrl + urlParam).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Post(string middleUrl, IDictionary
     
       middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、转换成json参数        HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json");        // 3、Post请求        HttpResponseMessage httpResponseMessage = httpClient.PostAsync(middleUrl, httpContent).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Post(string middleUrl, IList
      
       
        > middleParams)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、转换成json参数        HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParams), Encoding.UTF8, "application/json");        // 3、Post请求        HttpResponseMessage httpResponseMessage = httpClient.PostAsync(middleUrl, httpContent).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult PostDynamic(string middleUrl, dynamic middleParam)    {
           // 1、获取httpClient        HttpClient httpClient = httpClientFactory.CreateClient(HttpConst);        // 2、转换成json参数        HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json");        // 3、Post请求        HttpResponseMessage httpResponseMessage = httpClient.PostAsync(middleUrl, httpContent).Result;        return GetMiddleResult(httpResponseMessage);    }    public MiddleResult Put(string middleUrl, IDictionary
        
          middleParam) { // 1、获取httpClient HttpClient httpClient = httpClientFactory.CreateClient(HttpConst); // 2、转换成json参数 HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json"); // 3、Put请求 HttpResponseMessage httpResponseMessage = httpClient.PutAsync(middleUrl, httpContent).Result; return GetMiddleResult(httpResponseMessage); } public MiddleResult Put(string middleUrl, IList
         
          
           > middleParams) { // 1、获取httpClient HttpClient httpClient = httpClientFactory.CreateClient(HttpConst); // 2、转换成json参数 HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParams), Encoding.UTF8, "application/json"); // 3、Put请求 HttpResponseMessage httpResponseMessage = httpClient.PutAsync(middleUrl, httpContent).Result; return GetMiddleResult(httpResponseMessage); } public MiddleResult PutDynamic(string middleUrl, dynamic middleParam) { // 1、获取httpClient HttpClient httpClient = httpClientFactory.CreateClient(HttpConst); // 2、转换成json参数 HttpContent httpContent = new StringContent(JsonConvert.SerializeObject(middleParam), Encoding.UTF8, "application/json"); // 3、Put请求 HttpResponseMessage httpResponseMessage = httpClient.PutAsync(middleUrl, httpContent).Result; return GetMiddleResult(httpResponseMessage); } private MiddleResult GetMiddleResult(HttpResponseMessage httpResponseMessage) { // 3、将HttpResponseMessage转换成MiddleResult if (httpResponseMessage.StatusCode.Equals(HttpStatusCode.OK) || httpResponseMessage.StatusCode.Equals(HttpStatusCode.Created) || httpResponseMessage.StatusCode.Equals(HttpStatusCode.Accepted)) { string httpJsonString = httpResponseMessage.Content.ReadAsStringAsync().Result; // 3.1 创建MiddleResult return MiddleResult.JsonToMiddleResult(httpJsonString); } else { throw new FrameException($"{ HttpConst}服务调用错误:{ httpResponseMessage.Content.ReadAsStringAsync().ToString()}"); } }}

2.返回结果集的封装

/// /// 中台结果/// public class MiddleResult{
       public const string SUCCESS = "0";    public string ErrorNo {
    set; get; } // 是否成功状态    public string ErrorInfo {
    set; get; } // 失败信息    public IDictionary
   
     resultDic {
    set; get; }// 用于非结果集返回    public IList
    
     
      > resultList {
    set; get; }// 用于结果集返回    public dynamic Result {
    set; get; }// 返回动态结果(通用)    public MiddleResult()    {
           resultDic = new Dictionary
      
       ();        resultList = new List
       
        
         >(); } public MiddleResult(string jsonStr) { MiddleResult result = JsonConvert.DeserializeObject
         
          (jsonStr); } /// 
           /// 中台结果串转换成为MiddleResult ///  /// 
           /// 
           public static MiddleResult JsonToMiddleResult(string jsonStr) { MiddleResult result = JsonConvert.DeserializeObject
          
           (jsonStr); return result; } public MiddleResult(string errorNo, string errorInfo) { this.ErrorNo = errorNo; this.ErrorInfo = errorInfo; resultDic = new Dictionary
           
            (); resultList = new List
            
             
              >(); } public MiddleResult(string errorNo, string erroInfo, IDictionary
              
                resultDic, IList
               
                
                 > resultList) : this(errorNo, erroInfo) { this.resultDic = resultDic; this.resultList = resultList; this.resultDic = resultDic; this.resultList = resultList; }}

转载地址：https://codeboy.blog.csdn.net/article/details/117375528 如侵犯您的版权，请留言回复原文章的地址，我们会给您删除此文章，给您带来不便请您谅解！

上一篇：(更新时间)2021年5月28日 商城高并发秒杀系统(.NET Core版) 05-断路器Polly组件的封装
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