前面有说明使用EF动态新建数据库与表，数据库使用的是SQL SERVER2008的，在使用MYSQL的时候还是有所不同
一、添加 EntityFramework.dll ，System.Data.Entity.dll ，MySql.Data, MySql.Data.Entity.EF6
注意：Entity Framework5.0.0(好像最新的6.X是不支持mysql的)
二、添加dll文件，可以使用“管理NuGet程序包”或者“Nuget程序包管理控制台”添加
与 控制台平台添加
以下为控制台平台安装dll语句
EntityFramework.dll ： Install-Package EntityFramework -Version 5.0.0
MySql.Data ： Install-Package MySql.Data -Version 6.9.12
MySql.Data.Entity：Install-Package MySql.Data.Entity -Version 6.9.12
三、在app.config文件中添加connectionStrings
源文件
<?xml version="1.0" encoding="utf-8"?>
<configuration><configSections><section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" /><!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 --></configSections><entityFramework><defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" /><providers><provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" /><provider invariantName="MySql.Data.MySqlClient" type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.Entity.EF6, Version=6.9.12.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d"></provider></providers></entityFramework><system.data><DbProviderFactories><remove invariant="MySql.Data.MySqlClient" /><add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.9.12.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /></DbProviderFactories></system.data><connectionStrings><!--<add name="conncodefirst" connectionString="server=127.0.0.1;port=3306;uid=root;pwd=repower;database=code" providerName="MySql.Data.MySqlClient"/>--><add name="conncodefirst" connectionString="server=127.0.0.1;user id=root;password=repower;database=code" providerName="MySql.Data.MySqlClient" /></connectionStrings>
</configuration>
四、添加类
[Table("Student")]public class Student{public Student(){}[Key]public int StudentID { get; set; }public string StudentName { get; set; }public DateTime AddTime { get; set; }}[Table("Standard")]public class Standard{public Standard(){}public int StandardId { get; set; }public string StandardName { get; set; }public DateTime AddTime { get; set; }}
添加SchoolContext 继承DbContext
[DbConfigurationType(typeof(MySql.Data.Entity.MySqlEFConfiguration))]public class SchoolContext : DbContext{public SchoolContext(): base("name=conncodefirst"){}static SchoolContext(){DbConfiguration.SetConfiguration(new MySql.Data.Entity.MySqlEFConfiguration());}public DbSet<Student> Students { get; set; }public DbSet<Standard> Standards { get; set; }//protected override void OnModelCreating(DbModelBuilder modelBuilder)//{// base.OnModelCreating(modelBuilder);//}}
最后调用
SchoolContext dbCOntext = new SchoolContext();//dbCOntext.Database.bool flag = dbCOntext.Database.CreateIfNotExists();Student stud = new Student() { StudentName = "New Student", AddTime = DateTime.Now };dbCOntext.Students.Add(stud);dbCOntext.SaveChanges();
结果
