C# 动态创建数据库三（MySQL）

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

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<?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

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[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

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[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

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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