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好久沒有寫關于web開發(fā)的文章了,進到這個公司一直就是winform和Silverlight,實在是沒有實戰(zhàn)web項目的機會。大D也辭職了,去搞web app了。自己也該閑暇時間多學習學習,每天進步一點點。
OK,不多說了,看一下Solution的截圖
基本上一看就明白了,控制器調(diào)用Biz層,Biz層調(diào)用DAL層,DAL層進行數(shù)據(jù)的CURD。Utility是一些公用的類庫。ok,為什么程序集的命名都是以Bruce開頭呢,因為我在公司的英文名叫這個。廢話不多說,我們先看一下頁面
我們引入了BootStrap,主要是為了頁面布局。在Views中Partial下面放的都是部分頁。
我們先看一下運行效果,今天主要是講頁面初始化部分。
其實查詢條件就是婚否,出生日期,姓名的模糊查詢。我們先看一下頁面Index.cshtml的代碼
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta name="viewport" content="width=device-width;initial-scale=1" /> <title>Compare data between Solr and DB</title> <link rel="stylesheet" type="text/css" href="~/BootStrap/css/bootstrap-theme.css" /> <link rel="stylesheet" type="text/css" href="~/BootStrap/css/bootstrap.css" /> @*@Styles.Render("~/css")*@ @Scripts.Render("~/bundles/BootStrap") @Scripts.Render("~/bundles/Scripts") <style type="text/css"> .pre-Scrollable { max-height: 700px; overflow-y: scroll; } </style> </head> <body> <div class="container"> <form id="formsync"> <div class="row"> <div class="col-md-12"> <h2 ><b>Compare Data Between Solr and DB</b></h2> </div> </div> <div class="row" id="divloding" > <div class="col-md-6"> <img src="~/Images/ajaxLoading.gif" alt="load failed" /> <label>getting,please wait......</label> </div> </div> <div class="row" id="divcompare" > <div class="col-md-6"> <img src="~/Images/ajaxLoading.gif" alt="load failed" /> <label>comparing,please wait......</label> </div> </div> <div class="row" id="divfix" > <div class="col-md-6"> <img src="~/Images/ajaxLoading.gif" alt="load failed" /> <label>fixing,please wait......</label> </div> </div> <div class="row" > <div class="col-md-12 form-inline"> <div class="form-group input-group"> <span class="input-group-addon">IsMarried:</span> @Html.DropDownList("ddlMarried", ViewBag.MarriedList as SelectList, null, new { id = "ddlMarried", @class = "form-control" }) </div> <div class="form-group" > <label class="control-label">BirthDay:</label> <input type="date" id="txtdatestart" class="form-control"> <label class="control-label">-</label> <input type="date" id="txtdateend" class="form-control"> </div> <div class="form-group input-group" > <span class="input-group-addon">Name:</span> <input id="txtusername" type="text" class="form-control" placeholder="input name..." /> </div> <div class="form-group" > <input id="btnsearch" type="button" class="btn btn-info" value="Get" /> </div> </div> </div> <div class="row" > <div id="divresult" class="col-md-7 form-inline pre-Scrollable"> @{Html.RenderPartial("~/Views/Partial/UserInfoPartial.cshtml");} </div> <div class="col-md-5"> @{Html.RenderPartial("~/Views/Partial/DiffAndSameWithSolrPartial.cshtml");} </div> </div> </form> </div> </body> </html>
我們使用html5+BootStrap布局,這里用到了BootStrap的網(wǎng)格系統(tǒng),將瀏覽器平分為12份,即12列,很容易構造出響應式布局系統(tǒng)。那么什么是BootStrap的網(wǎng)格系統(tǒng),看如下的解釋
OK,我們怎么看是否是響應式的布局呢,我們打開谷歌瀏覽器,現(xiàn)將瀏覽器縮小到一定程度。
看到了吧,即使設備瀏覽器這么小,我們還是能用。那我們在手機模擬器中測試一下,打開谷歌瀏覽器,按F12,點擊手機模擬器樣的東西,然后Device選擇iphone6。
我們看到iphone6下面的效果是這樣的。說到這里我最近很討厭兩個廣告,一個是“這個是iphone6,這個是iphone6 plus,它們都有一個叫健康的東西.....但是好吃啊”,還有一個是“當牛魔王變成一個餃子,我愿意變成一雙筷子”??吹竭@兩個廣告,我想砸電視。
那為什么不同的設備不同的瀏覽器都是可以正常瀏覽的呢,原因就在于這段代碼
<meta name="viewport" content="width=device-width;initial-scale=1" />
這段代碼的意思是網(wǎng)頁寬度默認等于屏幕寬度,縮放比例默認為1(網(wǎng)頁初始比例占屏幕的100%)。
ok,我們接下來看head部分css和js的引用,這里有個新東西叫Bundle,用來打包壓縮js或者css的。通過它打包壓縮的js或者css客戶端只需要下載一次包即可,而且可以在客戶端緩存起來,當檢測到有更新時,才會重新下載。
下面是Bundle.cs的代碼
using System.Web; using System.Web.Optimization; namespace Brue.GRLC.Web { public class BundleConfig { // 有關 Bundling 的詳細信息,請訪問 http://go.microsoft.com/fwlink/?LinkId=254725 public static void RegisterBundles(BundleCollection bundles) { bundles.Add(new ScriptBundle("~/bundles/BootStrap").Include( "~/Scripts/jquery-1.11.1.js","~/BootStrap/js/bootstrap.js")); bundles.Add(new ScriptBundle("~/bundles/Scripts").Include("~/Js/Index.js")); bundles.Add(new StyleBundle("~/css").Include("~/BootStrap/css/bootstrap-theme.css" , "~/BootStrap/css/bootstrap.css")); } } }
注意,在這里引用js的時候不要引用壓縮過的js,比如xxx.min.js。當Bundle在遇到這種js命名文件的時候,直接就忽略掉了。那么我們在Head中只需要使用如下代碼來引用即可。
@Scripts.Render("~/bundles/BootStrap") @Scripts.Render("~/bundles/Scripts")
OK,在這我碰到一個問題,就是我的css通過這種方式引用,始終提示Index out of range。如果哪位大牛知道原因的話麻煩留個言,謝謝!
OK,我們接下來看一下控制器代碼,頁面剛進來,會走Home/Index。
public ActionResult Index() { List<object> marriedList = GRLCBiz.GetInstance().GetMarriedList(); SelectList selectList = new SelectList(marriedList, "MarriedID", "DisplayContent", "-1"); ViewBag.MarriedList = selectList; DataResponse<UserDBEntity> dataResponse = GRLCBiz.GetInstance().GetUserInfoEntityList(); UserInfoViewModel userInfoViewModel = new UserInfoViewModel(); userInfoViewModel.DataResponse = dataResponse; userInfoViewModel.DataResponse.PageIndex = ConstValues.CONN_DefaultPageIndex; userInfoViewModel.DataResponse.PageSize = ConstValues.CONN_DefaultPageSize; userInfoViewModel.DataResponse.StartPageIndex = 1; return View(userInfoViewModel); }
首先我們構造了一個SelectList用于下拉列表,Biz層的代碼很簡單
public dynamic GetMarriedList() { IList<object> marriedList = new List<object>(); marriedList.Add(new { MarriedID = -1, DisplayContent = "No Selection" }); marriedList.Add(new { MarriedID = 0, DisplayContent = "Married" }); marriedList.Add(new { MarriedID = 1, DisplayContent = "UnMarried" }); return marriedList; }
用匿名類去構造一個List。接下來就是DataReponse的獲取,Biz層的代碼如下
public DataResponse<UserDBEntity> GetUserInfoEntityList(UserInfoRequest request = null) { if(request==null) { request = new UserInfoRequest(); request.PageIndex = ConstValues.CONN_DefaultPageIndex; request.PageSize = ConstValues.CONN_DefaultPageSize; } int totalCount=0; List<UserDBEntity> userDBEntityList = GRLCDAL.GetInstance().GetUserInfoEntityList(request, out totalCount); DataResponse<UserDBEntity> dataResponse = new DataResponse<UserDBEntity>(); dataResponse.DataList = userDBEntityList; dataResponse.TotalCount = totalCount; return dataResponse; }
沒什么可說的,ConstValues類中是一些靜態(tài)只讀屬性
public class ConstValues { public static readonly string CON_DBConnection = ConfigurationManager.ConnectionStrings["DB_ConnectionStr"].ToString(); public static readonly string CON_DbScriptXmlFolder = ConfigurationManager.AppSettings["DbScriptXmlFolder"]; public static readonly int CONN_DefaultPageSize = int.Parse(ConfigurationManager.AppSettings["DefaultPageSize"]); public static readonly int CONN_DefaultPageIndex = 1; public static readonly int CONN_PagerDisplayCount = int.Parse(ConfigurationManager.AppSettings["PagerDisplayCount"]); }
看一下DAL層。
public List<UserDBEntity> GetUserInfoEntityList(UserInfoRequest request, out int totalCount) { totalCount = 0; string sqlScript = string.Empty; try { sqlScript = DBScriptManager.GetScript(this.GetType(), "GetUserInfo"); SqlParameter[] sqlParameters = { new SqlParameter("@IsMarried",SqlDbType.Char,1), new SqlParameter("@StartDate",SqlDbType.DateTime), new SqlParameter("@EndDate",SqlDbType.DateTime), new SqlParameter("@UserName",SqlDbType.NVarChar,20), new SqlParameter("@PageIndex",SqlDbType.Int), new SqlParameter("@PageSize",SqlDbType.Int), new SqlParameter("@TotalCount",SqlDbType.Int) }; sqlParameters[0].Value = request.IsMarried; sqlParameters[1].Value = request.StartDate; sqlParameters[2].Value = request.EndDate; sqlParameters[3].Value = request.UserName; sqlParameters[4].Value = request.PageIndex; sqlParameters[5].Value = request.PageSize; sqlParameters[6].Direction = ParameterDirection.Output; DataSet ds = SqlHelper.ExecuteDataset(ConstValues.CON_DBConnection, CommandType.Text, sqlScript, sqlParameters); if (ds != null && ds.Tables.Count > 0) { totalCount = Convert.ToInt32(sqlParameters[6].Value); return ds.Tables[0].ToEntityList<UserDBEntity>(); } return new List<UserDBEntity>(); } catch (Exception ex) { LogHelper.WriteExceptionLog(MethodBase.GetCurrentMethod(), ex); return null; } }
OK,我們看一下這個GetUserInfo腳本,在Bruce.GRLC.DbScriptXml程序集下。
<?xml version="1.0" encoding="utf-8" ?> <Scripts> <Script Key="GetUserInfo"> <![CDATA[ DECLARE @UserTempTable TABLE ( ID INT IDENTITY(1,1) NOT NULL, UserNo CHAR(25) NOT NULL ) INSERT INTO @UserTempTable ( UserNo ) SELECT A.UseNo FROM Bonus.dbo.[User] A WITH(NOLOCK) LEFT JOIN Bonus.dbo.UerInfo B WITH(NOLOCK) ON A.UseNo = B.UseNo WHERE (@IsMarried IS NULL OR @IsMarried = '' OR B.Temper = @IsMarried) AND ( @StartDate IS NULL OR @EndDate IS NULL OR B.BirthDay BETWEEN @StartDate AND @EndDate ) AND ( @UserName IS NULL OR @UserName = '' OR B.Name LIKE '%' + @UserName + '%' ) ORDER BY A.UseNo ASC SELECT @TotalCount = COUNT(1) FROM @UserTempTable SELECT UseNo, Name, Age, Married FROM( SELECT ID = ROW_NUMBER() OVER(ORDER BY UseNo ASC), A.UseNo, B.Name, B.Age, Married = CASE WHEN B.Temper = '1' THEN '已婚' ELSE '未婚' END FROM Bonus.dbo.[User] A WITH(NOLOCK) LEFT JOIN Bonus.dbo.UerInfo B WITH(NOLOCK) ON A.UseNo = B.UseNo INNER JOIN @UserTempTable C ON C.UserNo = A.UseNo ) N WHERE ID BETWEEN (@PageIndex - 1)* @PageSize + 1 AND @PageIndex * @PageSize ]]> </Script> </Scripts>
腳本很簡單,就是傳入?yún)?shù)查分頁數(shù)據(jù)。
在DAL層我們將DataTable通過ToEntityList轉(zhuǎn)化為了實體List,在Utility中我們定義了一個擴展用來轉(zhuǎn)化。
public static class DataTableToEntityExtension { public static List<T> ToEntityList<T>(this DataTable dt) where T : class,new() { List<T> entityList = new List<T>(); Type entityType = typeof(T); PropertyInfo[] propertys = entityType.GetProperties(); DataMappingAttribute mappingAttribute = null; foreach (DataRow dr in dt.Rows) { T tEntity = new T(); foreach (PropertyInfo pi in propertys) { mappingAttribute = pi.GetCustomAttribute(typeof(DataMappingAttribute)) as DataMappingAttribute; if (mappingAttribute != null && dt.Columns.Contains(mappingAttribute.mappingName)) { if (!pi.CanWrite) continue; object value = dr[mappingAttribute.mappingName]; if (value != DBNull.Value) pi.SetValue(tEntity, value, null); } } entityList.Add(tEntity); } return entityList; } }
值那么轉(zhuǎn)化的時候是怎么讓DataTable的列和實體匹配起來,你可以將列別名和實體定義成一樣的,還有一種你可以使用Attribute。那我們使用后者,因為后者更靈活。
[AttributeUsage(AttributeTargets.Property)] public class DataMappingAttribute : Attribute { public string mappingName; public DbType dbType; public DataMappingAttribute() { } public DataMappingAttribute(string mappingName, DbType dbType) { this.mappingName = mappingName; this.dbType = dbType; } }
定義好Attribute之后,我們設置其能使用的目標只能是Property。然后我們在實體類里面的屬性上加上這個Attribute。
namespace Bruce.GRLC.Model.Entity { public class UserDBEntity { [DataMapping("UseNo", DbType.AnsiString)] public string UserID { get; set; } [DataMapping("Name", DbType.AnsiString)] public string UserName { get; set; } [DataMapping("Age", DbType.Int32)] public int Age { get; set; } [DataMapping("Married", DbType.String)] public string Married { get; set; } } }
在DataTableToEntityExtension這個擴展中我們得到屬性的Attribute去和DataTable的列名去匹配,反射賦值。
OK,拿到數(shù)據(jù)后,我們在控制器構造viewModel,傳遞給界面來綁定。我們看一下部分頁UserInfoPartial.cshtml的代碼
@using Bruce.GRLC.Model.ViewModel; @model UserInfoViewModel <table id="tabuserinfo" class="table table-bordered table-hover"> <thead> <tr > <th>帳號</th> <th>姓名</th> <th>年齡</th> <th>婚否</th> </tr> </thead> <tbody> @if (Model != null && Model.DataResponse != null && Model.DataResponse.DataList != null) { foreach (var userEntity in Model.DataResponse.DataList) { <tr> <td> @userEntity.UserID </td> <td> @userEntity.UserName </td> <td> @userEntity.Age </td> <td> @userEntity.Married </td> </tr> } } </tbody> </table> <div id="divpagination"> @{Html.RenderPartial("~/Views/Partial/PaginationPartial.cshtml", Model.DataResponse);} </div>
其實也就是一個應用了BoootStrap樣式的表格,有邊框和鼠標經(jīng)過的樣式。關于BootStrap的樣式的使用,請參考BootStrap官網(wǎng)。代碼很簡單,就是循環(huán)遍歷,展示數(shù)據(jù)。
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