简易OA漫谈之工作流设计（DB实现）

好久没写博客，上一篇 没想到大家讨论还挻热烈，非常感谢大家关注和提出的一些建议和意见。

大家关注的还是两点：

1、现实流程会复杂得多;

2、流程平台需要复杂的设计（作图）工具。

我想说的是我这里不是做一个“大而全”的工作流平台，只是从最基本的地方入手，通过这样一些测试，让初学者发现工作流的一些原理。

了解这些原理后，你使用各种平台（如K2）开发就会清楚一些。

上篇算是一个概要设计，这篇简单的做一个数据库实现，本实现暂不包括“规则处理”，即由调用端决定下一手步骤和处理人。

兄弟刚离职，现在正找工作，关乎一家人是否有饭吃，所以时间不多，写得很粗糙，大家还请原谅则个！

用的sql server.

1、先建一个数据库MyData

2、执行一下结构脚本

USE [MyData]
GO
/****** Object:  Table [dbo].[BaseUser]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[BaseUser](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [UserName] [varchar](50) NOT NULL,
    [PassWord] [varchar](50) NULL,
    [UserDesc] [nvarchar](200) NULL,
    [UnitID] [int] NULL,
    [PostID] [int] NULL,
    [LocationID] [int] NULL,
    [Phone] [varchar](50) NULL,
    [Email] [varchar](100) NULL,
    [EnableFlag] [bit] NOT NULL,
 CONSTRAINT [PK_MyUser] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[FlowStep]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[FlowStep](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [StepID] [int] NOT NULL,
    [FlowID] [int] NOT NULL,
    [StepCode] [varchar](50) NOT NULL,
    [StepName] [nvarchar](50) NOT NULL,
    [IsJoin] [bit] NULL,
    [Params] [xml] NULL,
    [EnabeFlag] [bit] NOT NULL,
 CONSTRAINT [PK_FlowStep] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[FlowInstance]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[FlowInstance](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [FlowID] [int] NOT NULL,
    [FlowName] [varchar](50) NOT NULL,
    [UserID] [int] NOT NULL,
    [UserName] [varchar](50) NOT NULL,
    [ApplyUserName] [varchar](50) NULL,
    [ApplyDateTime] [datetime] NULL,
    [EndUserName] [varchar](50) NULL,
    [EndDateTime] [datetime] NULL,
    [StatusID] [int] NULL,
    [StatusName] [varchar](50) NULL,
    [ApplyStatus] [nvarchar](500) NULL,
 CONSTRAINT [PK_FlowMain] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[FlowActionTraceData]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[FlowActionTraceData](
    [TraceID] [int] NOT NULL,
    [Data] [xml] NULL,
 CONSTRAINT [PK_FlowActionTraceData] PRIMARY KEY CLUSTERED 
(
    [TraceID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
/****** Object:  Table [dbo].[FlowActionTrace]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[FlowActionTrace](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [InstanceID] [int] NOT NULL,
    [FlowID] [int] NOT NULL,
    [FlowName] [nvarchar](50) NOT NULL,
    [FlowCode] [varchar](50) NOT NULL,
    [StepID] [int] NOT NULL,
    [StepName] [nvarchar](50) NOT NULL,
    [StepCode] [varchar](50) NOT NULL,
    [ActionID] [int] NULL,
    [ActionName] [nvarchar](50) NULL,
    [ActionCode] [varchar](50) NULL,
    [OwnerUserID] [int] NOT NULL,
    [OwnerUserName] [varchar](50) NOT NULL,
    [OwnerUserDesc] [nvarchar](50) NOT NULL,
    [SubmitUserID] [int] NULL,
    [SubmitUserName] [varchar](50) NULL,
    [SubmitUserDesc] [nvarchar](50) NULL,
    [ArriveTime] [datetime] NOT NULL,
    [ReadTime] [datetime] NULL,
    [SubmitTime] [datetime] NULL,
    [PreID] [int] NOT NULL,
    [SubmitMemo] [nvarchar](500) NULL,
 CONSTRAINT [PK_FlowActionTrace] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[FlowAction]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[FlowAction](
    [ID] [int] IDENTITY(1,1) NOT NULL,
    [ActionID] [int] NOT NULL,
    [StepID] [int] NOT NULL,
    [FlowID] [int] NOT NULL,
    [ActionCode] [varchar](50) NOT NULL,
    [ActionName] [nvarchar](50) NOT NULL,
    [Params] [xml] NULL,
    [EnableFlag] [bit] NOT NULL,
 CONSTRAINT [PK_FlowAction] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object:  Table [dbo].[Flow]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Flow](
    [ID] [int] NOT NULL,
    [FlowCode] [varchar](50) NOT NULL,
    [FlowName] [nvarchar](50) NULL,
    [FlowVersion] [varchar](50) NOT NULL,
    [Params] [xml] NULL,
    [EnableFlag] [bit] NOT NULL,
 CONSTRAINT [PK_Flow_1] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
SET ANSI_PADDING OFF
GO
/****** Object:  UserDefinedFunction [dbo].[f_splitstr]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE function [dbo].[f_splitstr](@SourceSql varchar(8000),@StrSeprate varchar(100))
 returns @temp table(F1 varchar(100))
 as 
 begin 
 declare @ch as varchar(100)
 set @SourceSql=@SourceSql+@StrSeprate 
 while(@SourceSql<>'')
 begin 
 set @ch=left(@SourceSql,charindex(@StrSeprate,@SourceSql,1)-1) 
 insert @temp values(@ch)
 set @SourceSql=stuff(@SourceSql,1,charindex(@StrSeprate,@SourceSql,1),'')
 end 
 return 
 end
GO
/****** Object:  UserDefinedFunction [dbo].[f_getstartstatus]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        <Author,,Name>
-- Create date: <Create Date, ,>
-- Description:    <Description, ,>
-- =============================================
CREATE FUNCTION [dbo].[f_getstartstatus]
(
    @OwnerUserIDStr varchar(500),
    @StepName nvarchar(50)
)
RETURNS nvarchar(500)
AS
BEGIN
    declare @ret nvarchar(500) 
    set @ret=''
    
    select @ret=@ret+e.UserDesc +'('+@StepName+');'
    from f_splitstr(@OwnerUserIDStr,',') d 
    join dbo.BaseUser e on d.f1=e.ID
    
    return @ret

END
GO
/****** Object:  UserDefinedFunction [dbo].[f_getflowstatus]    Script Date: 08/24/2012 11:50:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        <Author,,Name>
-- Create date: <Create Date, ,>
-- Description:    <Description, ,>
-- =============================================
create FUNCTION [dbo].[f_getflowstatus]
(
    @instanceid int    
)
RETURNS nvarchar(500)
AS
BEGIN
    declare @ret nvarchar(500) 
    set @ret=''
    
    select @ret=@ret+OwnerUserDesc+'('+StepName+');'
    from dbo.flowactiontrace
    where InstanceID=@instanceid
    and SubmitTime is null
    
    return @ret

END
GO
/****** Object:  StoredProcedure [dbo].[usp_FlowSubmit]    Script Date: 08/24/2012 11:50:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        <Author,,Name>
-- Create date: <Create Date,,>
-- Description:    <Description,,>
-- exec usp_FlowSubmit 10,3,3,0,'4/2,3',null
-- =============================================
CREATE PROCEDURE [dbo].[usp_FlowSubmit]
(
    @TraceID int,--flowactiontrace的id
    @AcionID int,--操作编号
    @SubmitUserID int,--提交人编号
    @IsEnd int,--是否结束步骤
    @NextStr varchar(2000),--'1/3,4;3/5,6'
    @Data nvarchar(max)
)
AS
BEGIN
    SET NOCOUNT ON;
    
    declare @flowid int
    declare @stepid int
    declare @actioncode varchar(50)
    declare @actionname nvarchar(50)
    declare @instanceid int
    declare @submitusername varchar(50)
    declare @submituserdesc nvarchar(50)
    declare @isjoin bit
    
    select @submitusername=username,
           @submituserdesc=userdesc
    from dbo.BaseUser
    where ID=@SubmitUserID
           
    select @instanceid=instanceid,
           @flowid=flowid,
           @stepid=stepid
    from dbo.FlowActionTrace
    where ID=@TraceID
           
    select @actioncode=actioncode,
           @actionname=actionname
    from dbo.FlowAction
    where ActionID=@AcionID and StepID=@stepid and FlowID=@flowid    
    
    select @isjoin =isjoin 
    from dbo.FlowStep
    where StepID=@stepid and FlowID=@flowid
    
    
    begin tran
        
        --提交当前待办
        update dbo.FlowActionTrace 
        set ActionID=@AcionID,
                ActionCode=@actioncode,
                ActionName=@actionname,
                SubmitUserID=@SubmitUserID,
                SubmitUserName=@submitusername,
                SubmitUserDesc=@submituserdesc,
                SubmitTime=GETDATE()
        where ID=@TraceID   
         
        if(@Data is not null)
        begin
            insert into dbo.FlowActionTraceData(TraceID,Data)
            values(@TraceID,@Data)
        end
        
        
        --如果不是会审，删除其他待办
        if(@isjoin=0)
        begin
            delete  dbo.FlowActionTrace
            where  StepID=@stepid and FlowID=@flowid and ID<>@TraceID        
        end
        
        
        --更新主表状态
        if(@IsEnd=1  
            and (select COUNT(*) from dbo.FlowActionTrace where FlowID=@flowid and SubmitTime is null)=0
           )
        begin        
            update dbo.FlowInstance     
            set EndUserName=@submitusername,        
                EndDateTime=GETDATE(),
                StatusID=100,
                StatusName='正常结束',
                ApplyStatus=''
                where ID=@instanceid       
        end    
        else --不是结束时插入待办，可能多个路线，一个路线可能多人
        begin    
            declare @next varchar(500)    
            DECLARE db_cursor CURSOR FOR 
            select * FROM dbo.f_splitstr(@NextStr,';')

            OPEN db_cursor
            FETCH NEXT FROM db_cursor INTO @next
            WHILE @@FETCH_STATUS=0
            BEGIN
                declare @nextstepid  int --下一步骤
                declare @OwnerUserIDStr varchar(500) --下一步骤处理人
                set @nextstepid=convert(int,left(@next,charindex('/',@next,1)-1))
                set @OwnerUserIDStr=right(@next,len(@next)-charindex('/',@next,1))
                declare @nextstepcode varchar(50)
                declare @nextstepname nvarchar(50)
                select @nextstepcode=stepcode,
                    @nextstepname =stepname
                from FlowStep  where FlowID=@flowid and StepID=@nextstepid  

                --插入待办
                INSERT INTO [FlowActionTrace]
                ([InstanceID]
                ,[FlowID]
                ,[FlowName]
                ,[FlowCode]
                ,[StepID]
                ,[StepName]
                ,[StepCode]
                ,[OwnerUserID]
                ,[OwnerUserName]
                ,[OwnerUserDesc]           
                ,[ArriveTime],[PreID]
                )               
                SELECT @instanceid,@FlowID,a.FlowName,a.FlowCode,
                @nextstepid,@nextstepcode,@nextstepname,
                b.ID,b.UserName,b.UserDesc,
                getdate(),@TraceID
                FROM dbo.Flow a,
                (
                select e.ID,e.UserName,e.UserDesc 
                from dbo.f_splitstr(@OwnerUserIDStr,',') d 
                join dbo.BaseUser e on d.f1=e.ID
                )b WHERE  a.id=@flowid 

            FETCH NEXT FROM db_cursor INTO @next
            END
            CLOSE db_cursor
            DEALLOCATE db_cursor         

            --更新主表状态       
            update dbo.FlowInstance     
            set ApplyStatus=dbo.f_getflowstatus(@instanceid) 
            where ID=@instanceid         
        
        end
        
    commit tran    

END
GO
/****** Object:  StoredProcedure [dbo].[usp_FlowStart]    Script Date: 08/24/2012 11:50:18 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:        <Author,,Name>
-- Create date: <Create Date,,>
-- Description:    <Description,,>
-- exec usp_FlowStart 1,1,1,2,'2,3'
-- =============================================
CREATE PROCEDURE [dbo].[usp_FlowStart]
(
    @FlowID int,--流程模板编号
    @UserID int,--流程用户
    @ApplyUserID int,--流程申请用户
    @NextStepID int,--下一步骤
    @OwnerUserIDStr varchar(500),--多个下手审批人，以‘,’分隔
    @Data nvarchar(max)
)
AS
BEGIN
    SET NOCOUNT ON;
    
    declare @stepid int
    declare @stepcode varchar(50)
    declare @stepname nvarchar(50)
    declare @actionid int
    declare @actioncode varchar(50)
    declare @actionname nvarchar(50)
    
    select @stepid=stepid,
           @stepcode=stepcode,
           @stepname=stepname
           from FlowStep where FlowID=@FlowID and StepID=1
    select @actionid=actionid,
           @actioncode=actioncode,
           @actionname=actionname
           from FlowAction where FlowID=@FlowID and StepID=1 and ActionID=1      
    
    declare @nextstepcode varchar(50)
    declare @nextstepname nvarchar(50)
    
    select @nextstepcode=stepcode,
           @nextstepname=stepname
           from FlowStep where FlowID=@FlowID and StepID=@NextStepID       
    
    begin tran
        
        declare @instanceid int
        --插入主表
        INSERT INTO [FlowInstance]
                   ([FlowID]
                   ,[FlowName]
                   ,[UserID]
                   ,[UserName]
                   ,[ApplyUserName]
                   ,[ApplyDateTime]
                   ,[StatusID]
                   ,[StatusName]
                   ,[ApplyStatus])--待办状态
        SELECT @FlowID,a.FlowName,
        @UserID,b.UserName,c.UserName,
        GETDATE(),1,'流程中',dbo.f_getstartstatus(@OwnerUserIDStr,@nextstepname)  
        FROM dbo.Flow a,dbo.BaseUser b,dbo.BaseUser c
        WHERE  a.id=@FlowID and b.ID=@UserID and c.ID=@ApplyUserID    
        
        set @instanceid=@@identity
        
        --插入申请日志
        INSERT INTO [MyData].[dbo].[FlowActionTrace]
           ([InstanceID]
           ,[FlowID]
           ,[FlowName]
           ,[FlowCode]
           ,[StepID]
           ,[StepName]
           ,[StepCode]
           ,[ActionID]
           ,[ActionName]
           ,[ActionCode]
           ,[OwnerUserID]
           ,[OwnerUserName]
           ,[OwnerUserDesc]
           ,[SubmitUserID]
           ,[SubmitUserName]
           ,[SubmitUserDesc]
           ,[ArriveTime]
           ,[ReadTime]
           ,[SubmitTime])
        SELECT @instanceid,@FlowID,a.FlowName,a.FlowCode,
                @stepid,@stepcode,@stepname,
                @actionid,@actioncode,@actionname,
                b.ID,b.UserName,b.UserDesc,
                b.ID,b.UserName,b.UserDesc,
                getdate(),getdate(),getdate()
        FROM dbo.Flow a,dbo.BaseUser b
        where a.ID=@FlowID and b.ID=@ApplyUserID
        
        declare @preid int
        set @preid=@@IDENTITY
        
        if(@Data is not null)
        begin
            insert into dbo.FlowActionTraceData(TraceID,Data)
            values(@preid,@Data)
        end
        
        --插入待办
        INSERT INTO [FlowActionTrace]
               ([InstanceID]
               ,[FlowID]
               ,[FlowName]
               ,[FlowCode]
               ,[StepID]
               ,[StepName]
               ,[StepCode]
               ,[OwnerUserID]
               ,[OwnerUserName]
               ,[OwnerUserDesc]           
               ,[ArriveTime],[PreID]
               )               
        SELECT @instanceid,@FlowID,a.FlowName,a.FlowCode,
                @nextstepid,@nextstepcode,@nextstepname,
                b.ID,b.UserName,b.UserDesc,
                getdate(),@preid
        FROM dbo.Flow a,
            (
               select e.ID,e.UserName,e.UserDesc 
               from dbo.f_splitstr(@OwnerUserIDStr,',') d 
               join dbo.BaseUser e on d.f1=e.ID
            ) b
        WHERE  a.id=@FlowID                     
    
    commit tran
END
GO
/****** Object:  Default [DF_MyUser_EnableFlag]    Script Date: 08/24/2012 11:50:20 ******/
ALTER TABLE [dbo].[BaseUser] ADD  CONSTRAINT [DF_MyUser_EnableFlag]  DEFAULT ((1)) FOR [EnableFlag]
GO
/****** Object:  Default [DF_FlowActionTrace_PreID]    Script Date: 08/24/2012 11:50:20 ******/
ALTER TABLE [dbo].[FlowActionTrace] ADD  CONSTRAINT [DF_FlowActionTrace_PreID]  DEFAULT ((0)) FOR [PreID]
GO

3、执行一下数据脚本

--插入用户
insert BaseUser(ID,UserName,PassWord,UserDesc,UnitID,PostID,LocationID,Phone,Email,EnableFlag) values(    1    ,    'aaa'    ,    '123'    ,    N'王小二'    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    1    )
insert BaseUser(ID,UserName,PassWord,UserDesc,UnitID,PostID,LocationID,Phone,Email,EnableFlag) values(    2    ,    'bbb'    ,    '234'    ,    N'张老三'    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    1    )
insert BaseUser(ID,UserName,PassWord,UserDesc,UnitID,PostID,LocationID,Phone,Email,EnableFlag) values(    3    ,    'ccc'    ,    '345'    ,    N'李家四'    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    1    )
insert BaseUser(ID,UserName,PassWord,UserDesc,UnitID,PostID,LocationID,Phone,Email,EnableFlag) values(    4    ,    'ddd'    ,    '456'    ,    N'刘大五'    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    NULL    ,    1    )

--插入流程模板表
insert Flow(ID,FlowCode,FlowName,FlowVersion,Params,EnableFlag) values(    1    ,    'qinjia'    ,    N'请假'    ,    '1'    ,    NULL    ,    1    )

insert FlowStep(ID,StepID,FlowID,StepCode,StepName,IsJoin,Params,EnabeFlag) values(    1    ,    1    ,    1    ,    'apply'    ,    N'请假申请'    ,    0    ,    NULL    ,    1    )
insert FlowStep(ID,StepID,FlowID,StepCode,StepName,IsJoin,Params,EnabeFlag) values(    2    ,    2    ,    1    ,    'parent'    ,    N'上级审批'    ,    0    ,    NULL    ,    1    )
insert FlowStep(ID,StepID,FlowID,StepCode,StepName,IsJoin,Params,EnabeFlag) values(    4    ,    3    ,    1    ,    'manager'    ,    N'经理审批'    ,    1    ,    NULL    ,    1    )
insert FlowStep(ID,StepID,FlowID,StepCode,StepName,IsJoin,Params,EnabeFlag) values(    5    ,    4    ,    1    ,    'hrconfirm'    ,    N'HR确认'    ,    0    ,    NULL    ,    1    )

insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    1    ,    1    ,    1    ,    1    ,    'applysubmit'    ,    N'申请提交'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    2    ,    2    ,    1    ,    1    ,    'applycancel'    ,    N'申请取消'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    3    ,    3    ,    2    ,    1    ,    'parentsubmit'    ,    N'上级提交'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    4    ,    4    ,    2    ,    1    ,    'parentreject'    ,    N'上级驳回'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    5    ,    5    ,    2    ,    1    ,    'parentcancel'    ,    N'上级取消'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    6    ,    6    ,    3    ,    1    ,    'managersubmit'    ,    N'经理提交'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    7    ,    7    ,    3    ,    1    ,    'managercancel'    ,    N'经理取消'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    10    ,    8    ,    4    ,    1    ,    'hrconfirmsubmit'    ,    N'HR确认提交'    ,    NULL    ,    1    )
insert FlowAction(ID,ActionID,StepID,FlowID,ActionCode,ActionName,Params,EnableFlag) values(    11    ,    9    ,    4    ,    1    ,    'hrconfirmcancel'    ,    N'HR确认取消'    ,    NULL    ,    1    )

4、发起一个流程

exec usp_FlowStart 1,1,1,2,'2,3',null

参数解释：

 @FlowID int,--流程模板编号
 @UserID int,--流程用户
 @ApplyUserID int,--流程申请用户
 @NextStepID int,--下一步骤
 @OwnerUserIDStr varchar(500),--多个下手审批人，以‘,’分隔
 @Data nvarchar(max) --表单数据，xml格式

5、读一下任务信息

查看应该可以看到FlowInstance一条数据，这是流程实例主表。

查看应该可以看到FlowActionTrace三条数据，即申请已办一条，待办两条，为什么待会是两条，因为上面的参数

'2,3'就表示下一步处理人是两个。

select * from dbo.FlowInstance
select * from dbo.FlowActionTrace

6、执行一个待办提交

exec usp_FlowSubmit 3,3,3,0,'3/2,3',null

参数解释：

 @TraceID int,--flowactiontrace的id，选择一个submittime 为null的记录的id
 @AcionID int,--操作编号，就是做的是哪种操作，一般1代表同意提交
 @SubmitUserID int,--提交人编号
 @IsEnd int,--是否结束步骤
 @NextStr varchar(2000),--'1/3,4;3/5,6'这个结构表示“下一步骤编号/处理人编号串;下一步骤编号/处理人编号串”
 @Data nvarchar(max)--表单数据，xml格式

大家会觉得组装下一步骤和下一步操作人很麻烦，我们做了组件后会使用更好结构的属性。

下和篇如果有兴趣就做一个简单dll和website demo,以便跑跑看。