概述
毕设记录:asp .net core mvc web网站开发
- vscode连接mysql
- 第一步:创建mvc项目
- 第二步:下载各种包
- 第三步:创建context类
- 第四步:model
- 第五步:startup
- 第六步:appsetting.cs
- 第七步:Controller类
- 第八步:view类
- 最后运行一下
vscode连接mysql
看了许多篇文章才成功运行的
第一步:创建mvc项目
新建一个文件夹,名为demo;
用vscode打开这个文件夹;
Ctrl+~弹出终端;
dotnet new mvc;
dotnet run或者以非调试模式运行(ctrl+F5);
跳出网页
第二步:下载各种包
终端:
dotnet tool install --global dotnet-ef
dotnet tool install --global dotnet-aspnet-codegenerator
dotnet add package Microsoft.EntityFrameworkCore.SQLite
dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design
dotnet add package Microsoft.EntityFrameworkCore.Design
dotnet add package Microsoft.EntityFrameworkCore.SqlServer
nuget管理器:
Ctrl+shift+p 输入nuget;
选择有add的那个选项;
输入mysql.Data;
下载mysql.Data和MySQL.Data.EntityFrameworkCore,pemolo.EntityFrameworkCore.mysql;
第三步:创建context类
新建Data文件夹,以及SchoolContext.cs
using demo4.Models;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace demo4.Data
{
public class SchoolContext : DbContext
{
public SchoolContext(DbContextOptions<SchoolContext> options) : base(options)
{
}
public DbSet<Course> Courses { get; set; }
public DbSet<Enrollment> Enrollments { get; set; }
public DbSet<Student> Students { get; set; }
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<Course>().ToTable("Course");
modelBuilder.Entity<Enrollment>().ToTable("Enrollment");
modelBuilder.Entity<Student>().ToTable("Student");
}
}
}
第四步:model
新建Student.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace demo4.Models
{
public class Student
{
public int ID { get; set; }
public string LastName { get; set; }
public string FirstMidName { get; set; }
public DateTime EnrollmentDate { get; set; }
public ICollection<Enrollment> Enrollments { get; set; }
}
}
第五步:startup
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext<SchoolContext>(options =>
options.UseMySql(Configuration.GetConnectionString("MySqlConnection")));//添加Mysql支持
services.AddMvc();
}
第六步:appsetting.cs
添加以下内容:
"ConnectionStrings": {
"MySqlConnection": "server=127.0.0.1;database=mvc;user id=root;password=123456"
}```
注意格式!!!,格式不对会出现options无法支持的错误
```???
咋回事,去不掉这个
第七步:Controller类
新建StudentsController.cs
现在只有展示列表,添加数据的内容
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Logging;
using demo4.Models;
using demo4.Data;
using Microsoft.EntityFrameworkCore;
namespace demo4.Controllers
{
public class StudentsController : Controller
{
private readonly SchoolContext _context;
public StudentsController(SchoolContext context)
{
_context = context;
}
// GET: Students
public async Task<IActionResult> Index()
{
return View(await _context.Students.ToListAsync());//ToListAsync出错:添加Microsoft.EntityFrameworkCore包
}
// GET: Movies/Create
public IActionResult Create()
{
return View();
}
// POST: Movies/Create
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see http://go.microsoft.com/fwlink/?LinkId=317598.
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<IActionResult> Create([Bind("LastName,FirstMidName,EnrollmentDate")] Student Student)
{
if (ModelState.IsValid)
{
_context.Add(Student);
await _context.SaveChangesAsync();
return RedirectToAction(nameof(Index));
}
return View(Student);
}
}
}
第八步:view类
ViewsShared_Layout.cshtml修改为
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>@ViewData["Title"] - ContosoUniversity</title>
<environment include="Development">
<link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.css" />
<link rel="stylesheet" href="~/css/site.css" />
</environment>
<environment exclude="Development">
<link rel="stylesheet" href="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/css/bootstrap.min.css"
asp-fallback-href="~/lib/bootstrap/dist/css/bootstrap.min.css"
asp-fallback-test-class="sr-only" asp-fallback-test-property="position" asp-fallback-test-value="absolute" />
<link rel="stylesheet" href="~/css/site.min.css" asp-append-version="true" />
</environment>
</head>
<body>
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a asp-area="" asp-controller="Home" asp-action="Index" class="navbar-brand">Contoso University</a>
</div>
<div class="navbar-collapse collapse">
<ul class="nav navbar-nav">
<li><a asp-area="" asp-controller="Home" asp-action="Index">Home</a></li>
<li><a asp-area="" asp-controller="Home" asp-action="About">About</a></li>
<li><a asp-area="" asp-controller="Students" asp-action="Index">Students</a></li>
<li><a asp-area="" asp-controller="Courses" asp-action="Index">Courses</a></li>
<li><a asp-area="" asp-controller="Instructors" asp-action="Index">Instructors</a></li>
<li><a asp-area="" asp-controller="Departments" asp-action="Index">Departments</a></li>
</ul>
</div>
</div>
</nav>
<div class="container body-content">
@RenderBody()
<hr />
<footer>
<p>© 2018 - Contoso University</p>
</footer>
</div>
<environment include="Development">
<script src="~/lib/jquery/dist/jquery.js"></script>
<script src="~/lib/bootstrap/dist/js/bootstrap.js"></script>
<script src="~/js/site.js" asp-append-version="true"></script>
</environment>
<environment exclude="Development">
<script src="https://ajax.aspnetcdn.com/ajax/jquery/jquery-2.2.0.min.js"
asp-fallback-src="~/lib/jquery/dist/jquery.min.js"
asp-fallback-test="window.jQuery"
crossorigin="anonymous"
integrity="sha384-K+ctZQ+LL8q6tP7I94W+qzQsfRV2a+AfHIi9k8z8l9ggpc8X+Ytst4yBo/hH+8Fk">
</script>
<script src="https://ajax.aspnetcdn.com/ajax/bootstrap/3.3.7/bootstrap.min.js"
asp-fallback-src="~/lib/bootstrap/dist/js/bootstrap.min.js"
asp-fallback-test="window.jQuery && window.jQuery.fn && window.jQuery.fn.modal"
crossorigin="anonymous"
integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa">
</script>
<script src="~/js/site.min.js" asp-append-version="true"></script>
</environment>
@RenderSection("Scripts", required: false)
</body>
</html>
ViewsStudentsCreate.cshtml为
@model demo4.Models.Student
@{
ViewData["Title"] = "Create";
}
<h1>Create</h1>
<h4>Movie</h4>
<hr />
<div class="row">
<div class="col-md-4">
<form asp-action="Create">
<div asp-validation-summary="ModelOnly" class="text-danger"></div>
<div class="form-group">
<label asp-for="LastName" class="control-label"></label>
<input asp-for="LastName" class="form-control" />
<span asp-validation-for="LastName" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="FirstMidName" class="control-label"></label>
<input asp-for="FirstMidName" class="form-control" />
<span asp-validation-for="FirstMidName" class="text-danger"></span>
</div>
<div class="form-group">
<label asp-for="EnrollmentDate" class="control-label"></label>
<input asp-for="EnrollmentDate" class="form-control" />
<span asp-validation-for="EnrollmentDate" class="text-danger"></span>
</div>
<div class="form-group">
<input type="submit" value="Create" class="btn btn-primary" />
</div>
</form>
</div>
</div>
<div>
<a asp-action="Index">Back to List</a>
</div>
@section Scripts {
@{await Html.RenderPartialAsync("_ValidationScriptsPartial");}
}
ViewsStudentsindex.cshtml为
@model IEnumerable<demo4.Models.Student>
@{
ViewData["Title"] = "Index";
}
<h2>Index</h2>
<p>
<a asp-action="Create">Create New</a>
</p>
<table class="table">
<thead>
<tr>
<th>
@Html.DisplayNameFor(model => model.LastName)
</th>
<th>
@Html.DisplayNameFor(model => model.FirstMidName)
</th>
<th>
@Html.DisplayNameFor(model => model.EnrollmentDate)
</th>
<th></th>
</tr>
</thead>
<tbody>
@foreach (var item in Model)
{
<tr>
<td>
@Html.DisplayFor(modelItem => item.LastName)
</td>
<td>
@Html.DisplayFor(modelItem => item.FirstMidName)
</td>
<td>
@Html.DisplayFor(modelItem => item.EnrollmentDate)
</td>
<td>
<a asp-action="Edit" asp-route-id="@item.ID">Edit</a> |
<a asp-action="Details" asp-route-id="@item.ID">Details</a> |
<a asp-action="Delete" asp-route-id="@item.ID">Delete</a>
</td>
</tr>
}
</tbody>
</table>
最后运行一下
出现网页后,点击左上角,后面的自己试
2020.3.22
今天的内容就这么多了,看了好久的博客,终于能够连接数据库了
加油我能行!!!
最后
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