准备
您需要一台Linux服务器并安装Docker,或使用windows的Docker Desktop
安装数据库
sudo apt update
sudo apt install postgresql postgresql-contri
验证安装
sudo -u postgres psql -c "SELECT version();"
创建数据库
sudo su - postgres -c "createdb [数据库名]"
添加 postgres 密码
sudo su - postgres -c "ALTER USER postgres WITH PASSWORD '[密码]';"
修改配置
cd /etc/postgresql/12/main
sudo nano postgresql.conf
# - Connection Settings - 节
listen_addresses = '*'
开放所有访问
sudo nano pg_hba.conf
host all all 0.0.0.0/0 md5
重启
sudo service postgresql restart
验证
ss -nlt | grep 5432
安装客户端
数据库使用
创建类库Postgre.Data
创建控制台 Postgre.Helloworld
Postgre.Data 使用EntityFramwork Core 6.x 面向codefirst
使用程序包管理器,Install
Install-package Microsoft.EntityFrameworkCore.Tools
添加PostgreSQL的引用
nuget 添加 Npgsql.EntityFrameworkCore.PostgreSQL
添加myContext
public class MyContext : DbContext
{
public MyContext() : base()
{
}
public MyContext(DbContextOptions<MyContext> options) : base(options)
{
}
public DbSet<ProjectScanResult>? ProjectScanResults { get; set; }
public DbSet<ProjectScanHistory>? ProjectScanHistorys { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
//if (!optionsBuilder.IsConfigured)
//{
// var connectionString = @"User ID =postgres;Password=xxxx;Server=xxx.xxx.xxx.xxx;Port=5432;Database=xxxx;Integrated Security=true;Pooling=true;";
// optionsBuilder.UseNpgsql(connectionString);
//}
}
}
Postgre.Helloworld 代码配置(DotNet 6 Program.cs)
//Database configuration
builder.Services.AddEntityFrameworkNpgsql().AddDbContext<MyContext>(optionsAction: opt =>
{
opt.UseNpgsql(builder.Configuration.GetConnectionString(name: "Conection"));
});
AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
//Database initialization
using (var serviceScope = app.Services.GetService<IServiceScopeFactory>()?.CreateScope())
{
var context = serviceScope?.ServiceProvider.GetRequiredService<MyContext>();
context?.Database.Migrate();
}