ASP.NET MVC5 网站开发实践(二) Member区域 - 全部文章列表

浏览数：23 / 时间：2015年06月09日

显示文章列表分两块，管理员可以显示全部文章列表，一般用户只显示自己的文章列表。文章列表的显示采用easyui-datagrid。后台需要与之对应的action返回json类型数据

全部文章列表

效果图

用来显示所有的文章界面采用easyui-datagrid，可以进行栏目，标题，录入，发布时间的查询

1、在IBLL

在InterfaceCommonModelService接口中添加获取公共模型列表的方法

首先排序方法

/// <summary>
        /// 排序
        /// </summary>
        /// <param name="entitys">数据实体集</param>
        /// <param name="roderCode">排序代码[默认：ID降序]</param>
        /// <returns></returns>
        IQueryable<CommonModel> Order(IQueryable<CommonModel> entitys, int roderCode);

查询数据方法

/// <summary>
        /// 查询分页数据列表
        /// </summary>
        /// <param name="totalRecord">总记录数</param>
        /// <param name="model">模型【All全部】</param>
        /// <param name="pageIndex">页码</param>
        /// <param name="pageSize">每页记录数</param>
        /// <param name="title">标题【不使用设置空字符串】</param>
        /// <param name="categoryID">栏目ID【不使用设0】</param>
        /// <param name="inputer">用户名【不使用设置空字符串】</param>
        /// <param name="fromDate">起始日期【可为null】</param>
        /// <param name="toDate">截止日期【可为null】</param>
        /// <param name="orderCode">排序码</param>
        /// <returns>分页数据列表</returns>
        IQueryable<CommonModel> FindPageList(out int totalRecord, int pageIndex, int pageSize, string model, string title, int categoryID, string inputer, Nullable<DateTime> fromDate, Nullable<DateTime> toDate, int orderCode);

2、BLL

在CommonModelService写方法实现代码，内容都很简单主要是思路，直接上代码

public IQueryable<CommonModel> FindPageList(out int totalRecord, int pageIndex, int pageSize, string model, string title, int categoryID, string inputer, Nullable<DateTime> fromDate, Nullable<DateTime> toDate, int orderCode)
        {
            //获取实体列表
            IQueryable<CommonModel> _commonModels = CurrentRepository.Entities;
            if (model == null || model != "All") _commonModels = _commonModels.Where(cm => cm.Model == model);
            if (!string.IsNullOrEmpty(title)) _commonModels = _commonModels.Where(cm => cm.Title.Contains(title));
            if (categoryID > 0) _commonModels = _commonModels.Where(cm => cm.CategoryID == categoryID);
            if (!string.IsNullOrEmpty(inputer)) _commonModels = _commonModels.Where(cm => cm.Inputer == inputer);
            if (fromDate != null) _commonModels = _commonModels.Where(cm => cm.ReleaseDate >= fromDate);
            if (toDate != null) _commonModels = _commonModels.Where(cm => cm.ReleaseDate <= toDate);
            _commonModels = Order(_commonModels, orderCode);
            totalRecord = _commonModels.Count();
            return PageList(_commonModels, pageIndex, pageSize).AsQueryable();
        }

        public IQueryable<CommonModel> Order(IQueryable<CommonModel> entitys, int orderCode)
        {
            switch(orderCode)
            {
                //默认排序
                default:
                    entitys = entitys.OrderByDescending(cm => cm.ReleaseDate);
                    break;
            }
            return entitys;
        }

3、web

由于CommonModel跟我们前台显示的数据并不一致，为了照顾datagrid中的数据显示再在Ninesky.Web.Models中再构造一个视图模型CommonModelViewModel

using System;

namespace Ninesky.Web.Models
{
    /// <summary>
    /// CommonModel视图模型
    /// <remarks>
    /// 创建：2014.03.10
    /// </remarks>
    /// </summary>
    public class CommonModelViewModel
    {
        public int ModelID { get; set; }

        /// <summary>
        /// 栏目ID
        /// </summary>
        public int CategoryID { get; set; }

        /// <summary>
        /// 栏目名称
        /// </summary>
        public string CategoryName { get; set; }

        /// <summary>
        /// 模型名称
        /// </summary>
        public string Model { get; set; }

        /// <summary>
        /// 标题
        /// </summary>
        public string Title { get; set; }

        /// <summary>
        /// 录入者
        /// </summary>
        public string Inputer { get; set; }

        /// <summary>
        /// 点击
        /// </summary>
        public int Hits { get; set; }

        /// <summary>
        /// 发布日期
        /// </summary>
        public DateTime ReleaseDate { get; set; }

        /// <summary>
        /// 状态
        /// </summary>
        public int Status { get; set; }

        /// <summary>
        /// 状态文字
        /// </summary>
        public string StatusString { get { return  Ninesky.Models.CommonModel.StatusList[Status]; } }

        /// <summary>
        /// 首页图片
        /// </summary>
        public string DefaultPicUrl { get; set; }
    }
}

在ArticleController中添加一个返回json类型的JsonList方法

/// <summary>
        /// 文章列表Json【注意权限问题，普通人员是否可以访问？】
        /// </summary>
        /// <param name="title">标题</param>
        /// <param name="input">录入</param>
        /// <param name="category">栏目</param>
        /// <param name="fromDate">日期起</param>
        /// <param name="toDate">日期止</param>
        /// <param name="pageIndex">页码</param>
        /// <param name="pageSize">每页记录</param>
        /// <returns></returns>
        public ActionResult JsonList(string title, string input, Nullable<int> category, Nullable<DateTime> fromDate, Nullable<DateTime> toDate, int pageIndex = 1, int pageSize = 20)
        {
            if (category == null) category = 0;
            int _total;
            var _rows = commonModelService.FindPageList(out _total, pageIndex, pageSize, "Article", title, (int)category, input, fromDate, toDate, 0).Select(
                cm => new Ninesky.Web.Models.CommonModelViewModel() 
                { 
                    CategoryID = cm.CategoryID,
                    CategoryName = cm.Category.Name,
                    DefaultPicUrl = cm.DefaultPicUrl,
                    Hits = cm.Hits,
                    Inputer = cm.Inputer,
                    Model = cm.Model,
                    ModelID = cm.ModelID,
                    ReleaseDate = cm.ReleaseDate,
                    Status = cm.Status,
                    Title = cm.Title 
                });
            return Json(new { total = _total, rows = _rows.ToList() });
        }

下面是做界面了，在添加 List方法，这里不提供任何数据，数据在JsonList 中获得

/// <summary>
        /// 全部文章
        /// </summary>
        /// <returns></returns>
        public ActionResult List()
        {
            return View();
        }

右键添加视图

<div id="toolbar">
    <div>
        <a href="#" class="easyui-linkbutton" data-options="iconCls:‘icon-edit‘,plain:true" >修改</a>
        <a href="#" class="easyui-linkbutton" data-options="iconCls:‘icon-remove‘,plain:true" ">删除</a>
        <a href="#" class="easyui-linkbutton" data-options="iconCls:‘icon-reload‘,plain:true" onclick="$(‘#article_list‘).datagrid(‘reload‘);">刷新</a>
    </div>
    <div class="form-inline">
        <label>栏目</label><input id="combo_category" data-options="url:‘@Url.Action("JsonTree", "Category", new { model="Article" })‘" class="easyui-combotree" />
        <label>标题</label> <input id="textbox_title" class="input-easyui" style="width:280px" />
        <label>录入人</label><input id="textbox_inputer" class="input-easyui" />
        <label>添加日期</label>
        <input id="datebox_fromdate" type="datetime" class="easyui-datebox" style="width:120px" /> -
        <input id="datebox_todate" type="datetime" class="easyui-datebox" style="width:120px; " />
        <a href="#" id="btn_search" data-options="iconCls:‘icon-search‘" class="easyui-linkbutton">查询</a>
    </div>

</div>
<table id="article_list"></table>
<script src="~/Scripts/Common.js"></script>
<script type="text/javascript">
    $("#article_list").datagrid({
        loadMsg: ‘加载中……‘,
        pagination:true,
        url: ‘@Url.Action("JsonList","Article")‘,
        columns: [[
            { field: ‘ModelID‘, title: ‘ID‘, checkbox: true },
            { field: ‘CategoryName‘, title: ‘栏目‘},
            { field: ‘Title‘, title: ‘标题‘},
            { field: ‘Inputer‘, title: ‘录入‘, align: ‘right‘ },
            { field: ‘Hits‘, title: ‘点击‘, align: ‘right‘ },
            { field: ‘ReleaseDate‘, title: ‘发布日期‘, align: ‘right‘, formatter: function (value, row, index) { return jsonDateFormat(value); } },
            { field: ‘StatusString‘, title: ‘状态‘, width: 100, align: ‘right‘ }
        ]],
        toolbar: ‘#toolbar‘,
        idField: ‘ModelID‘,
    });
    //查找
    $("#btn_search").click(function () {
        $("#article_list").datagrid(‘load‘, {
            title: $("#textbox_title").val(),
            input: $("#textbox_inputer").val(),
            category: $("#combo_category").combotree(‘getValue‘),
            fromDate: $("#datebox_fromdate").datebox(‘getValue‘),
            toDate: $("#datebox_todate").datebox(‘getValue‘)
        });
    });

    }
</script>