業務場景：

業務需求要求，需要對 WebApi 接口服務統一返回參數，也就是把實際的結果用一定的格式包裹起來，比如下面格式：

{  "response":{    "code":200,    "msg":"Remote service error",    "result":""  }}

具體實現：

using Microsoft.AspNetCore.Mvc;using Microsoft.AspNetCore.Mvc.Filters;public class WebApiResultMiddleware : ActionFilterAttribute{  public override void OnResultExecuting(ResultExecutingContext context)  {    //根據實際需求進行具體實現    if (context.Result is ObjectResult)    {      var objectResult = context.Result as ObjectResult;      if (objectResult.Value == null)      {        context.Result = new ObjectResult(new { code = 404, sub_msg = "未找到資源", msg = "" });      }      else      {        context.Result = new ObjectResult(new { code = 200, msg = "", result = objectResult.Value });      }    }    else if (context.Result is EmptyResult)    {      context.Result = new ObjectResult(new { code = 404, sub_msg = "未找到資源", msg = "" });    }    else if (context.Result is ContentResult)    {      context.Result = new ObjectResult(new { code = 200, msg = "", result= (context.Result as ContentResult).Content });    }    else if (context.Result is StatusCodeResult)    {      context.Result = new ObjectResult(new { code = (context.Result as StatusCodeResult).StatusCode, sub_msg = "", msg = "" });    }  }}

Startup添加對應配置：

public void ConfigureServices(IServiceCollection services){  services.AddMvc(options =>  {    options.Filters.Add(typeof(WebApiResultMiddleware));    options.RespectBrowserAcceptHeader = true;  });}

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持錯新站長站。