【分享帖之二】一个存储过程一分钟一键生成所有实体类（适用于FW3.5以上版本）
本帖最后由 fengyarongaa 于 2012-05-02 11:32:53 编辑 刚刚这个存储过程是的输出采用的以下格式
public string aaa
{
set{ _aaa=value;}
get{return _aaa;}
}
public string aaa { get; set; }
SET ANSI_NULLS ON
SET QUOTED_IDENTIFIER ON
go
ALTER PROC [dbo].[p_db_wsp]
@dbname VARCHAR(50) , --数据库名
@path VARCHAR(100) , --实体类所在目录名，如D:/My/Models
@namespace VARCHAR(50) --实体类命名空间,默认值为Models
AS --判断数据库是否存在
IF ( DB_ID(@dbname) IS NOT NULL )
BEGIN
IF ( ISNULL(@namespace, '') = '' )
SET @namespace = 'Models'
-- 允许配置高级选项
EXEC sp_configure 'show advanced options', 1
-- 重新配置
RECONFIGURE
-- 启用Ole Automation Procedures
EXEC sp_configure 'Ole Automation Procedures', 1
-- 启用xp_cmdshell,可以向磁盘中写入文件
EXEC sp_configure 'xp_cmdshell', 1
-- 重新配置
RECONFIGURE
DECLARE @dbsql VARCHAR(1000) ,
@tablename VARCHAR(100)
SET @dbsql = 'declare wsp cursor for select name from ' + @dbname
+ '..sysobjects where xtype=''u'' and name <>''sysdiagrams'''
EXEC(@dbsql)
OPEN wsp
FETCH wsp INTO @tablename--使用游标循环遍历数据库中每个表
WHILE ( @@fetch_status = 0 )
BEGIN
--根据表中字段组合实体类中的字段和属性
DECLARE @nsql NVARCHAR(4000) ,
@sql VARCHAR(8000)
SET @nsql = 'select @s=isnull(@s+char(9)+''private '',''using System;'
+ CHAR(13) + 'using System.Collections.Generic;'
+ CHAR(13) + 'using System.Text;' + CHAR(13)
+ 'namespace ' + @namespace + CHAR(13) + '{' + CHAR(13)
+ CHAR(9) + 'public class ' + @tablename + CHAR(13)
+ '{''+char(13)+char(9)+''private '')+
case when a.name in(''image'',''uniqueidentifier'',''ntext'',''varchar'',''ntext'',''nchar'',''nvarchar'',''text'',''char'') then ''string''
when a.name in(''tinyint'',''smallint'',''int'',''bigint'') then ''int''
when a.name in(''datetime'',''smalldatetime'') then ''DateTime''
when a.name in(''float'',''decimal'',''numeric'',''money'',''real'',''smallmoney'') then ''decimal''
when a.name =''bit'' then ''bool''
else a.name end+'' ''+lower(''_''+b.name)+'';''+char(13)+char(9)+''public ''+
case when a.name in(''image'',''uniqueidentifier'',''ntext'',''varchar'',''ntext'',''nchar'',''nvarchar'',''text'',''char'') then ''string''
when a.name in(''tinyint'',''smallint'',''int'') then ''int''
when a.name=''bigint'' then ''long''
when a.name in(''datetime'',''smalldatetime'') then ''DateTime''
when a.name in(''float'',''decimal'',''numeric'',''money'',''real'',''smallmoney'') then ''decimal''
when a.name =''bit'' then ''bool''
else a.name end
+'' ''+b.name+char(13)+char(9)+''{get;set;''+char(13)+char(9)+''}''+char(13)
from ' + @dbname + '..syscolumns b,
(select distinct name,xtype from '
+ @dbname
+ '..systypes where status=0) a
where a.xtype=b.xtype and b.id=object_id('''
+ @dbname + '..' + @tablename + ''')'
EXEC sp_executesql @nsql, N'@s varchar(8000) output',
@sql OUTPUT
SET @sql = @sql + CHAR(9) + '}' + CHAR(13) + '}'
--print @sql
DECLARE @err INT ,
@fso INT ,
@fleExists BIT ,
@file VARCHAR(100)
SET @file = @path + '/' + @tablename + '.cs'
EXEC @err= sp_OACreate 'Scripting.FileSystemObject',
@fso OUTPUT
EXEC @err= sp_OAMethod @fso, 'FileExists',
@fleExists OUTPUT, @file
EXEC @err = sp_OADestroy @fso
IF @fleExists != 0
EXEC('exec xp_cmdshell ''del '+@file+'''') --存在则删除
EXEC('exec xp_cmdshell ''echo '+@sql+' > '+@file+'''') --将文本写进文件中
SET @sql = NULL
FETCH wsp INTO @tablename
END
CLOSE wsp
DEALLOCATE wsp
PRINT '生成成功！'
END
ELSE
PRINT '数据库不存在！'
SELECT 'public string '+NAME+'
{
set{ _'+NAME+'=value;}
get{return _'+NAME+';}
}
'
FROM SYS.TABLES
