Asp.Net EF查看生成sql（MiniProfiler）

查看ef生成的sql有很多种方法，这里介绍两种几种的方法

方法1：浏览器直接方法/Home/getsql直接查看sql

//方法1：浏览器直接方法/Home/getsql直接查看sql
        public string GetSql()
        {
            dbEntities db = new dbEntities();
            return db.news.Where(m => m.hot == 1).OrderByDescending(m => m.ID).Take(5).ToString();
        }

方法2：把生成的sql保存在磁盘中

//方法2：把sql保存在磁盘中
        public ActionResult Index2()
        {
            dbEntities db = new dbEntities();
            var sw = new StreamWriter(@"d:" + DateTime.Now.ToFileTime().ToString() + ".log") { AutoFlush = true };
            db.Database.Log = s =>{sw.Write(s);};

            var list = db.news.Where(m => m.hot == 1).OrderByDescending(m => m.ID).Take(5).ToList();
            return View(list);
        }

方法3：MiniProfiler

建议使用vs2015以上nuget搜索MiniProfiler安装

需要安装MiniProfiler、MiniProfiler ef6、MiniProfiler mvc，如果最新版安装不成功的话安装低版本即可

安装完成后需要设置Global.asax、web.config、view

Global.asax(新加红色代码)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Http;
using System.Web.Mvc;
using System.Web.Optimization;
using System.Web.Routing;
using StackExchange.Profiling;
using StackExchange.Profiling.EntityFramework6;

namespace cms.Web
{
    public class MvcApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();

            WebApiConfig.Register(GlobalConfiguration.Configuration);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles); 
            BundleTable.EnableOptimizations = true;//js/css压缩
            MiniProfilerEF6.Initialize();//MiniProfiler监控ef
        }
        protected void Application_BeginRequest()
        {
            if (Request.IsLocal)//这里是允许本地访问启动监控,可不写
            {
                MiniProfiler.Start();

            }
        }

        protected void Application_EndRequest()
        {
            MiniProfiler.Stop();
        }
    }
}

web.config

<system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
    <handlers>
      <add name="MiniProfiler" path="mini-profiler-resources/*" verb="*" type="System.Web.Routing.UrlRoutingModule" resourceType="Unspecified" preCondition="integratedMode" />
    </handlers>
  </system.webServer>

随便一个view

@using StackExchange.Profiling;
@MiniProfiler.RenderIncludes();

注意：如果想监控所有的页面，推荐加在布局页(_Layout)中

运行效果