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我目前正在研究一個項目，我必須從數據庫中提取數據並將其顯示在我的視圖中的表格上。我有這一切的工作，但它需要大約10-15秒來加載頁面。如果可能的話，我想減少這個時間。我如何加快我的asp.net mvc應用程序？
我認爲問題在於從數據庫中獲取信息。我從數據庫中提取了很多項目，我相信可能有更好的方法。
控制器：
public class HomeController : Controller
{
private RestoreDBEntities db = new RestoreDBEntities();
public ActionResult Index()
{
W6ViewModel viewModel = new W6ViewModel();
viewModel.engineers = db.W6ENGINEERS.OrderBy(w => w.Name).Include(w => w.W6CALENDARS).ToList();
viewModel.tasks = db.W6TASKS.ToList();
return View(viewModel);
}
public ActionResult Details(int? id)
{
if (id == null)
{
return new HttpStatusCodeResult(HttpStatusCode.BadRequest);
}
W6ENGINEERS w6ENGINEERS = db.W6ENGINEERS.Find(id);
if (w6ENGINEERS == null)
{
return HttpNotFound();
}
return View(w6ENGINEERS);
}
[HttpPost]
public ActionResult Filter(FormCollection collection)
{
string city = collection["city"];
W6ViewModel viewModel = new W6ViewModel();
viewModel.engineers = db.W6ENGINEERS.Where(w => w.City == city).Include(w => w.W6CALENDARS).ToList();
viewModel.tasks = db.W6TASKS.Where(w => w.City == city).Include(w => w.W6CALENDARS).ToList();
return View("Index", viewModel);
}
查看：
@model WebApplication1.ViewModel.W6ViewModel
@{
ViewBag.Title = "Dispatcher";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<section id="fields">
<h3 id="field_filter"><strong>Filters</strong></h3>
<h3 id="field_engineer"><strong>Engineers</strong></h3>
<h3 id="field_task"><strong>Tasks</strong></h3>
</section>
<section id="filters">
@using (Html.BeginForm("Filter", "Home", FormMethod.Post))
{
<input name="city" id="city" type="text" maxlength="15" title="City" value ="City" style="color:#888;"
onfocus ="inputFocus(this)" onblur="inputBlur(this)" />
<input id="submit" type="submit" value="Submit" />`enter code here`
}
</section>
<section id="engineers">
<table class="table-condensed table-striped">
<tr>
<th>
Name
</th>
<th>
Phone number
</th>
<th>
City
</th>
<th>
Region
</th>
<th>
Availability Factor
</th>
</tr>
@foreach (var item in Model.engineers)
{
<tr>
<td>
@Html.ActionLink(item.Name, "Details", new { id = item.W6Key })
</td>
<td>
@Html.DisplayFor(modelItem => item.MobilePhone)
</td>
<td>
@Html.DisplayFor(modelItem => item.City)
</td>
<td>
@Html.DisplayFor(modelItem => item.Region)
</td>
<td>
@Html.DisplayFor(modelItem => item.AvailabilityFactor)
</td>
</tr>
}
</table>
</section>
<section id="work">
<table class="table-condensed table-striped">
<tr>
<th>
Job ID
</th>
<th>
Skills
</th>
<th>
Address
</th>
</tr>
@foreach(var item in Model.tasks)
{
<tr>
<td>
@Html.DisplayFor(modelItem => item.City)
</td>
<td>
@Html.DisplayFor(modelItem => item.IsScheduled)
</td>
<td>
@Html.DisplayFor(modelItem => item.IsPartsNotUsed)
</td>
</tr>
}
</table>
Webconfig：多提前
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<connectionStrings>
<add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\aspnet-WebApplication1-20140611092404.mdf;Initial Catalog=aspnet-WebApplication1-20140611092404;Integrated Security=True" providerName="System.Data.SqlClient" />
<add name="RestoreDBEntities" connectionString="metadata=res://*/Models.Model1.csdl|res://*/Models.Model1.ssdl|res://*/Models.Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=T520-R9K0H1K\SQLEXPRESS;initial catalog=RestoreDB;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
<appSettings>
<add key="webpages:Version" value="3.0.0.0" />
<add key="webpages:Enabled" value="false" />
<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>
<system.web>
<authentication mode="None" />
<compilation debug="true" targetFramework="4.5.1" />
<httpRuntime targetFramework="4.5.1" />
</system.web>
<system.webServer>
<urlCompression doDynamicCompression="true" doStaticCompression="true" dynamicCompressionBeforeCache="true"/>
</system.webServer>
<system.webServer>
<modules>
<remove name="FormsAuthenticationModule" />
</modules>
</system.webServer>
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-5.1.0.0" newVersion="5.1.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.Optimization" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-1.1.0.0" newVersion="1.1.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
</dependentAssembly>
<dependentAssembly>
<assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
<bindingRedirect oldVersion="1.0.0.0-1.5.2.14234" newVersion="1.5.2.14234" />
</dependentAssembly>
</assemblyBinding>
</runtime>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
謝謝！
編輯：
所以安裝DotTrace，並用它來診斷我的項目之後，現在看來，這是我對數據庫的調用，是造成加載時間長（我的意見，但我有DotTrace沒有經驗）
我添加了一個截圖，如果有人可以確認/提出一個很好的解決方案。
您在此問題中沒有足夠的信息來給出有效答案。你需要確定的第一件事是你的慢點。它是你的數據訪問，是查詢速度慢，還是你返回1M記錄，隨後的渲染速度慢？實際上客戶端的緩慢點是一些非常慢的JavaScript ...？ – Paddy
對不起，缺乏信息。我不確定問題出在哪裏。 我確實知道我從數據庫中提取了很多信息，我相信這是性能可以提高的地方。 我不相信它在客戶端。 –
嘗試運行諸如DotTrace或ANTS Profiler之類的探查器以查明某些緩慢部件的位置。如果是數據庫，我將運行SQL Server Profiler來查找哪些查詢正在運行以及它們需要多長時間。一旦您知道性能問題的確切原因，您就可以開始嘗試解決這些問題。 –