MVC项目实践（五）——逻辑操作的实现

接下来是逻辑操作的实现，直接决定了各页面中的各个操作类需要实现何种操作，它明确了各个页面的职责。

由设计文档可以知道我们的第一个页面为选择业务：

@model VolleyballScoring.Models.Team

@{
    ViewBag.Title = "Index";
}

<h2>Index</h2>
<h3>选择你想要进行的事情</h3>
<div>@Html.ActionLink("查询队伍","Index","Teams")</div>
<div>@Html.ActionLink("计分台","Scoring")</div>
<div>@Html.ActionLink("观看比赛","Index","Audience")</div>

以下为队伍的控制器操作：

namespace VolleyballScoring.Controllers
{
    public class TeamsController : Controller
    {
        private VolleyballDBContext db = new VolleyballDBContext();

        //
        // GET: /Teams/

        public ActionResult Index()
        {
            return View(db.Teams.ToList());
        }

        //
        // GET: /Teams/Details/5

        public ActionResult Details(int id = 0)
        {
            Team team = db.Teams.Find(id);
            if (team == null)
            {
                return HttpNotFound();
            }
            return View(team);
        }

        //
        // GET: /Teams/Create

        public ActionResult Create()
        {
            return View();
        }

        //
        // POST: /Teams/Create

        [HttpPost]
        public ActionResult Create(Team team)
        {
            if (ModelState.IsValid)
            {
                db.Teams.Add(team);
                db.SaveChanges();
                return RedirectToAction("Index");
            }

            return View(team);
        }

        //
        // GET: /Teams/Edit/5

        public ActionResult Edit(int id = 0)
        {
            Team team = db.Teams.Find(id);
            if (team == null)
            {
                return HttpNotFound();
            }
            return View(team);
        }

        //
        // POST: /Teams/Edit/5

        [HttpPost]
        public ActionResult Edit(Team team)
        {
            if (ModelState.IsValid)
            {
                db.Entry(team).State = EntityState.Modified;
                db.SaveChanges();
                return RedirectToAction("Index");
            }
            return View(team);
        }

        //
        // GET: /Teams/Delete/5

        public ActionResult Delete(int id = 0)
        {
            Team team = db.Teams.Find(id);
            if (team == null)
            {
                return HttpNotFound();
            }
            return View(team);
        }

        //
        // POST: /Teams/Delete/5

        [HttpPost, ActionName("Delete")]
        public ActionResult DeleteConfirmed(int id)
        {
            Team team = db.Teams.Find(id);
            db.Teams.Remove(team);
            db.SaveChanges();
            return RedirectToAction("Index");
        }

        protected override void Dispose(bool disposing)
        {
            db.Dispose();
            base.Dispose(disposing);
        }
    }
}

其他实体类的控制器与之大同小异，就不在此赘述。

下面是操作双方得分的接口：

using System;
using System.Collections.Generic;
using System.Text;
using NGuestBook.Entity;

namespace VolleyballScoring.Interface
{
    /// <summary>
    /// 业务逻辑接口——计分员
    /// </summary>
    public interface IAdminBLL
    {
        /// <summary>
        /// 增加计分
        /// </summary>
        /// <param name="Section">新小节类</param>
        /// <returns>是否成功</returns>
        bool Add(Section sec);

        /// <summary>
        /// 删除比分
        /// </summary>
        /// <param name="id">欲删除的小节ID</param>
        /// <returns>是否成功</returns>
        bool Remove(int id);

    }
}

以下是按照《2015-2016赛季中国排球联赛竞赛规程》的比分变化规则的逻辑表现

　　

public  class  Admin：IAminBLL
{
     public void Action(Game game,Section sec)
    {
        if (sec.SNum < 4)//前四局的加分计算和判断。
            {
                if (sec.RouA >= 24 && sec.RouB >= 24)//当两队24分平的情况。
                {
                    if (Math.Abs(sec.RouA - sec.RouB) == 2)
                    {
                        if (sec.RouA > sec.RouB)
                        {
                            game.SscoA += 1;
                            SscoA.Text = game.SscoA.ToString();
                            sec.RouA = 0;
                            ScoreA.Text = sec.RouA.ToString();
                            sec.RouB = 0;
                            ScoreB.Text = sec.RouB.ToString();
                        }
                        else
                        {
                            game.SscoB += 1;
                            SscoB.Text = game.SscoB.ToString();
                            sec.RouA = 0;
                            ScoreA.Text = sec.RouA.ToString();
                            sec.RouB = 0;
                            ScoreB.Text = sec.RouB.ToString();
                        }
                    }
                }
                else if(sec.RouA<24||sec.RouB<24) //当两队没有达到24分平的时候。
                {
                    if (sec.RouA == 25)
                    {
                        game.SscoA += 1;
                        SscoA.Text = game.SscoA.ToString();
                        sec.RouA = 0;
                        ScoreA.Text = sec.RouA.ToString();
                        sec.RouB = 0;
                        ScoreB.Text = sec.RouB.ToString();
                    }
                    else if (sec.RouB == 25)
                    {
                        game.SscoB += 1;
                        SscoB.Text = game.SscoB.ToString();
                        sec.RouA = 0;
                        ScoreA.Text = sec.RouA.ToString();
                        sec.RouB = 0;
                        ScoreB.Text = sec.RouB.ToString();
                    }
                }
            }
            else if (sec.SNum == 4)//第五局的加分计算和判断。
            {
                if (sec.RouA >= 14 && sec.RouB >= 14)//当两队24分平的情况。
                {
                    if (Math.Abs(sec.RouA - sec.RouB) == 2)
                    {
                        if (sec.RouA > sec.RouB)
                        {
                            game.SscoA += 1;
                            SscoA.Text = game.SscoA.ToString();
                        }
                        else
                        {
                            game.SscoB += 1;
                            SscoB.Text = game.SscoB.ToString();
                        }
                    }
                }
                else if (sec.RouA < 14 || sec.RouB < 14) //当两队没有达到24分平的时候。
                {
                    if (sec.RouA == 15)
                    {
                        game.SscoA += 1;
                        SscoA.Text = game.SscoA.ToString();
                    }
                    else if (sec.RouB == 15)
                    {
                        game.SscoB += 1;
                        SscoB.Text = game.SscoB.ToString();
                    }
                }
            }
            else
            {
                Response.Write("<script>alert('比赛已结束');</script>");
            }

    }  
}    

以上就是主要的逻辑业务表现，下一篇是具体的UI页面的表现