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：
1 @model VolleyballScoring.Models.Team 2 3 @{ 4 ViewBag.Title = "Index"; 5 } 6 7 <h2>Index</h2> 8 <h3>选择你想要进行的事情</h3> 9 <div>@Html.ActionLink("查询队伍","Index","Teams")</div> 10 <div>@Html.ActionLink("计分台","Scoring")</div> 11 <div>@Html.ActionLink("观看比赛","Index","Audience")</div>
以下为队伍的控制器操作：
1 namespace VolleyballScoring.Controllers 2 { 3 public class TeamsController : Controller 4 { 5 private VolleyballDBContext db = new VolleyballDBContext(); 6 7 // 8 // GET: /Teams/ 9 10 public ActionResult Index() 11 { 12 return View(db.Teams.ToList()); 13 } 14 15 // 16 // GET: /Teams/Details/5 17 18 public ActionResult Details(int id = 0) 19 { 20 Team team = db.Teams.Find(id); 21 if (team == null) 22 { 23 return HttpNotFound(); 24 } 25 return View(team); 26 } 27 28 // 29 // GET: /Teams/Create 30 31 public ActionResult Create() 32 { 33 return View(); 34 } 35 36 // 37 // POST: /Teams/Create 38 39 [HttpPost] 40 public ActionResult Create(Team team) 41 { 42 if (ModelState.IsValid) 43 { 44 db.Teams.Add(team); 45 db.SaveChanges(); 46 return RedirectToAction("Index"); 47 } 48 49 return View(team); 50 } 51 52 // 53 // GET: /Teams/Edit/5 54 55 public ActionResult Edit(int id = 0) 56 { 57 Team team = db.Teams.Find(id); 58 if (team == null) 59 { 60 return HttpNotFound(); 61 } 62 return View(team); 63 } 64 65 // 66 // POST: /Teams/Edit/5 67 68 [HttpPost] 69 public ActionResult Edit(Team team) 70 { 71 if (ModelState.IsValid) 72 { 73 db.Entry(team).State = EntityState.Modified; 74 db.SaveChanges(); 75 return RedirectToAction("Index"); 76 } 77 return View(team); 78 } 79 80 // 81 // GET: /Teams/Delete/5 82 83 public ActionResult Delete(int id = 0) 84 { 85 Team team = db.Teams.Find(id); 86 if (team == null) 87 { 88 return HttpNotFound(); 89 } 90 return View(team); 91 } 92 93 // 94 // POST: /Teams/Delete/5 95 96 [HttpPost, ActionName("Delete")] 97 public ActionResult DeleteConfirmed(int id) 98 { 99 Team team = db.Teams.Find(id); 100 db.Teams.Remove(team); 101 db.SaveChanges(); 102 return RedirectToAction("Index"); 103 } 104 105 protected override void Dispose(bool disposing) 106 { 107 db.Dispose(); 108 base.Dispose(disposing); 109 } 110 } 111 }
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：
1 using System; 2 using System.Collections.Generic; 3 using System.Text; 4 using NGuestBook.Entity; 5 6 namespace VolleyballScoring.Interface 7 { 8 /// <summary> 9 /// 业务逻辑接口——计分员 10 /// </summary> 11 public interface IAdminBLL 12 { 13 /// <summary> 14 /// 增加计分 15 /// </summary> 16 /// <param name="Section">新小节类</param> 17 /// <returns>是否成功</returns> 18 bool Add(Section sec); 19 20 /// <summary> 21 /// 删除比分 22 /// </summary> 23 /// <param name="id">欲删除的小节ID</param> 24 /// <returns>是否成功</returns> 25 bool Remove(int id); 26 27 } 28 }
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
