别人写的存储过程：

SQL code

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！'