using FreeSql;
using FreeSql.DataAnnotations;namespace FreeSqlMaster
{internal class Program{static IFreeSql freeSql = null;static void Main(string[] args){// 读写分离// FreeSql 实现了第3种方案，支持一个【主库】多个【从库】，【从库】的查询策略为随机方式。// 若某【从库】发生故障，将切换到其他可用【从库】，若已全部不可用则使用【主库】查询。// 出现故障【从库】被隔离起来间隔性的检查可用状态，以待恢复var connstr_master = "server=127.0.0.1;port=3306;database=test;user=root;password=root;charset=utf8;SslMode=none;Pooling=true;Min Pool Size=0;Max Pool Size=100;Charset=utf8";var connstr_slave1 = "server=127.0.0.1;port=3306;database=test1;user=root;password=root;charset=utf8;SslMode=none;Pooling=true;Min Pool Size=0;Max Pool Size=100;Charset=utf8";var connstr2_mysql = "server=127.0.0.1;port=3306;database=test;user=root;password=root;charset=utf8;SslMode=none;Pooling=true;Min Pool Size=0;Max Pool Size=100;Charset=utf8";freeSql = new FreeSql.FreeSqlBuilder().UseConnectionString(FreeSql.DataType.MySql, connstr_master).UseAutoSyncStructure(true) // 自动同步实体结构到数据库//.UseSlave(connstr_slave1)//, "connstr_sqlserver2") //使用从数据库，支持多个//.UseSlaveWeight().Build();//Student model = new Student() { Name = "1" };//freeSql.Insert(model).ExecuteAffrows();freeSql.Update<Student>().SetSource(model).ExecuteAffrows();//var d = freeSql.Select<Student>().Where(x => x.Name == "1").First(); //select.Where(a => a.Id == 1).ToOne(); //读【从库】（默认） //select.Master().WhereId(a => a.Id == 1).ToOne(); //强制读【主库】  // 分表//freeSql.Select<Log>().Any();var logRepository = freeSql.GetGuidRepository<Log>(null, oldname => $"{oldname}_201903");logRepository.Insert( new Log() { Content = "201903" });logRepository.Update(new Log() { Content = "111", Id = 1 });logRepository.Delete(new Log() { Id = 1 });logRepository = freeSql.GetGuidRepository<Log>(null, oldname => $"{oldname}_201904");logRepository.Insert(new Log() { Content = "201904" });// 跨表查询var sql = freeSql.Select<Log>().AsTable((type, oldname) => "Log_201903").AsTable((type, oldname) => "Log_201904").ToList();// a => a.Id// 分库 IdleBus<IFreeSql> ib = new IdleBus<IFreeSql>(TimeSpan.FromMinutes(10)); ib.Register("test", () => new FreeSqlBuilder().UseConnectionString(DataType.MySql, connstr_master).Build());ib.Register("test1", () => new FreeSqlBuilder().UseConnectionString(DataType.MySql, connstr_slave1).Build()); var lst1 = ib.Get("test").Select<Student>().Limit(10).ToList();var lst2 = ib.Get("test1").Select<Student>().Limit(10).ToList();Console.ReadKey();}public class Student{[Column(Name = "id", IsIdentity = true, IsPrimary = true)]public int Id { get; set; }public string Name { get; set; }}public class Log{[Column(Name = "id", IsIdentity = true, IsPrimary = true)]public int Id { get; set; }public string Content { get; set; }}}
}