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<a class="fancylink" href="../../infrastructure/handlers/file-download.ashx?id=29d7a2a3-ee66-4f24-af7c-2ad9fbb779bf">xxxx</a> public class file_downlo 阅读全文
posted @ 2022-01-27 17:54
yingxianqi
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redis的作用及优势: 1:单机抗高并发能力很强,一般几十万的并发量都可以扛得住,所以在处理热数据(经常访问的数据)很有优势 2:当用户登陆后,可以存储当前用户关联的所有信息,避免了从数据库大量数据里面再次做赛选查询 3:aof(备份命令),rdb(备份数据)可以解决服务器断掉造成的数据丢失,开机 阅读全文
posted @ 2022-01-26 09:54
yingxianqi
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1:lambd动态拼接条件 Expression<Func<T1, bool>> exp = a => 1 == 1; exp = exp.And(s => s.no1 == "22"); exp = exp.And(s => s.fs == 3); exp = exp.And(s => s.nam 阅读全文
posted @ 2022-01-25 16:41
yingxianqi
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public class FromeProService : EfDbGet<FromePro>// EfDbGet<FromePro>相当于基础泛型类,FromeProService想到与子类,在里面写拓展的其他非公用方法 { public FromeProService(PmsContext c 阅读全文
posted @ 2022-01-25 10:00
yingxianqi
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public static class ExpressionBuilder{public static Expression<Func<T, bool>> And<T>(this Expression<Func<T, bool>> first,Expression<Func<T, bool>> se 阅读全文
posted @ 2022-01-22 16:46
yingxianqi
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public class EfDbGet<TEntity> : FilterFunction<TEntity> where TEntity : class { public PmsContext _context; public EfDbGet(PmsContext context) { _cont 阅读全文
posted @ 2022-01-22 16:27
yingxianqi
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1:动态生成Service #region 动态生成service public void CreateService(string tableName) { string s = System.Environment.CurrentDirectory; string solutionUrl = n 阅读全文
posted @ 2022-01-22 15:32
yingxianqi
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实现思路: 1:先把所有的表查询出来,以列表展示到系统里面 2:选中某一个或者多个表,然后生成对应的实体 3:查询所有表跟视图的sql select * from sysobjects obj where obj.xtype IN ('U','V') 4:建立存放一张表所有列的属性的实体(比如列的类 阅读全文
posted @ 2022-01-22 10:50
yingxianqi
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1:在nuget下载安装包 Microsoft.EntityFrameworkCore Microsoft.EntityFrameworkCore.SqlServer Microsoft.EntityFrameworkCore.Tools Microsoft.Extensions.Dependenc 阅读全文
posted @ 2022-01-21 14:28
yingxianqi
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1:引入nuget架包 Microsoft.EntityFrameworkCore Microsoft.EntityFrameworkCore.Abstractions Microsoft.EntityFrameworkCore.SqlServe Microsoft.EntityFrameworkC 阅读全文
posted @ 2022-01-21 11:04
yingxianqi
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