徐汇网站推广公司,工信部的网站备案,网站开发的毕设开题报告,网页突然打不开是什么原因原因#xff1a;ABP默认使用的数据库是sqlServer#xff0c;本地没有安装sqlServer#xff0c;安装的是mysql#xff0c;需要更换数据库
ABP版本#xff1a;9.0
此处以官网TodoApp项目为例 打开EntityFrameworkCore程序集#xff0c;可以看到默认使用的是sqlServerABP默认使用的数据库是sqlServer本地没有安装sqlServer安装的是mysql需要更换数据库
ABP版本9.0
此处以官网TodoApp项目为例 打开EntityFrameworkCore程序集可以看到默认使用的是sqlServer此处截图为已安装mysql依赖包 步骤一、安装mysql依赖包
https://abp.io/packages
如果没安装 ABP CLI 先安装
dotnet tool install -g Volo.Abp.Studio.Cli安装ABP依赖包
abp add-package Volo.Abp.EntityFrameworkCore.MySQL安装完mysql依赖包后sqlserve依赖包可以删除也可以留着
步骤二、更改TodoAppEntityFrameworkCoreModule.cs文件 1、将 font stylecolor:rgb(214, 51, 132);UseSqlServer()/font 改为 font stylecolor:rgb(214, 51, 132);UseMySQL()/font 2、引入 Volo.Abp.EntityFrameworkCore.MySQL 命名空间 3、将 font stylecolor:rgb(214, 51, 132);typeof(AbpEntityFrameworkCoreSqlServerModule/font) 替换为 font stylecolor:rgb(214, 51, 132);typeof(AbpEntityFrameworkCoreMySQLModule)/font
修改完成代码如下
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.DependencyInjection;
using Volo.Abp.AuditLogging.EntityFrameworkCore;
using Volo.Abp.BackgroundJobs.EntityFrameworkCore;
using Volo.Abp.BlobStoring.Database.EntityFrameworkCore;
using Volo.Abp.EntityFrameworkCore;
using Volo.Abp.EntityFrameworkCore.MySQL;
using Volo.Abp.FeatureManagement.EntityFrameworkCore;
using Volo.Abp.Identity.EntityFrameworkCore;
using Volo.Abp.Modularity;
using Volo.Abp.OpenIddict.EntityFrameworkCore;
using Volo.Abp.PermissionManagement.EntityFrameworkCore;
using Volo.Abp.SettingManagement.EntityFrameworkCore;
using Volo.Abp.Studio;
using Volo.Abp.TenantManagement.EntityFrameworkCore;namespace TodoApp.EntityFrameworkCore;[DependsOn(typeof(TodoAppDomainModule),typeof(AbpPermissionManagementEntityFrameworkCoreModule),typeof(AbpSettingManagementEntityFrameworkCoreModule),typeof(AbpEntityFrameworkCoreMySQLModule),typeof(AbpBackgroundJobsEntityFrameworkCoreModule),typeof(AbpAuditLoggingEntityFrameworkCoreModule),typeof(AbpFeatureManagementEntityFrameworkCoreModule),typeof(AbpIdentityEntityFrameworkCoreModule),typeof(AbpOpenIddictEntityFrameworkCoreModule),typeof(AbpTenantManagementEntityFrameworkCoreModule),typeof(BlobStoringDatabaseEntityFrameworkCoreModule))]
public class TodoAppEntityFrameworkCoreModule : AbpModule
{public override void PreConfigureServices(ServiceConfigurationContext context){TodoAppEfCoreEntityExtensionMappings.Configure();}public override void ConfigureServices(ServiceConfigurationContext context){context.Services.AddAbpDbContextTodoAppDbContext(options {/* Remove includeAllEntities: true to create* default repositories only for aggregate roots */options.AddDefaultRepositories(includeAllEntities: true);});if (AbpStudioAnalyzeHelper.IsInAnalyzeMode){return;}ConfigureAbpDbContextOptions(options {/* The main point to change your DBMS.* See also TodoAppDbContextFactory for EF Core tooling. */options.UseMySQL();});}
}
步骤三、修改TodoAppStoreDbContextFactory.cs
将 UseSqlServer 修改为 UseMySQL
public TodoAppDbContext CreateDbContext(string[] args)
{var configuration BuildConfiguration();TodoAppEfCoreEntityExtensionMappings.Configure();var builder new DbContextOptionsBuilderTodoAppDbContext().UseMySql(configuration.GetConnectionString(Default), ServerVersion.Parse(5.7.38-mysql));return new TodoAppDbContext(builder.Options);
}步骤四、更改连接字符串
更改appsettings.json配置文件下的连接字符串TodoApp.Web 和 TodoApp.DbMigrator程序集下
ConnectionStrings: {Default: Server120.79.25.229;databasetodoDatabase;uidroot;pwd1126438236qq.com;},步骤五、数据库迁移
1、删除TodoApp.EntityFrameworkCore程序集下Migrations文件夹中的所有文件并重新构建解决方案
如果没删除迁移的时候会报错
2、在包管理控制台上执行迁移命令注意默认项目要选 TodoApp.EntityFrameworkCore 执行迁移命令
add-migration initial更新数据库命令
update-database数据库迁移过程中遇到的错误
1、配置文件appsettings.json中连接字符串错误
