这几天接到一个需求需要吧不同系统的数据库进行同步，需要我做一个中间平台进行连接，瞬间就想到了触发器调用接口然后通过API进行传递再写入另一个数据库。
sqlServer触发器调用JavaWeb接口
1、开启 Ole Automation Procedures
sqlServer要想调用web接口，就要使用自带的存储过程。而这些存储过程2005版本以后默认时关闭的，所以要先开启。

 
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ole Automation Procedures', 1;
GO
RECONFIGURE;
GO
EXEC sp_configure 'Ole Automation Procedures';
GO

关闭 Ole Automation Procedures

sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'Ole Automation Procedures', 1;
GO
RECONFIGURE;
GO
EXEC sp_configure 'Ole Automation Procedures';
GO

关闭高级选项

sp_configure 'show advanced options', 0;
GO
RECONFIGURE;
GO

然后就可以进行写触发器，因为我这边表的内容比较多，大家直接看代码就好了。

CREATE TRIGGER [dbo].[kingdee]
ON [dbo].[称重信息]
WITH EXECUTE AS CALLER
FOR INSERT
AS
BEGIN
 -- Type the SQL Here.
    DECLARE @fbillno int;
    DECLARE @carid varchar(4000);
    DECLARE @type varchar(4000);
    DECLARE @sendplace varchar(4000);    
    DECLARE @consignee varchar(4000);        
    DECLARE @material varchar(4000);
    DECLARE @specification varchar(4000);
    DECLARE @gw varchar(4000);
    DECLARE @tare varchar(4000);    
    DECLARE @nw varchar(4000);
    DECLARE @kw varchar(4000);
  DECLARE @aw varchar(4000);
    DECLARE @price varchar(4000);
    DECLARE @money varchar(4000);
    DECLARE @zfxs varchar(4000);
    DECLARE @square varchar(4000);
    DECLARE @weighingcost varchar(4000);
    DECLARE @gwtime varchar(4000);
    DECLARE @taretime varchar(4000);
    declare @url varchar(4000);
    declare @object int;
    declare @responseText varchar(4000);
    
    SELECT @fbillno = (select 流水号 from inserted);
    SELECT @carid = (select 车号 from inserted);
    SELECT @type = (select 过磅类型 from inserted);
    SELECT @sendplace = (select 发货单位 from inserted);
    SELECT @consignee = (select 收货单位 from inserted);
    SELECT @material = (select 货名 from inserted);
    SELECT @specification = (select 规格 from inserted);    
    SELECT @gw = (select 毛重 from inserted);
    SELECT @tare = (select 皮重 from inserted);
    SELECT @nw = (select 净重 from inserted);    
    SELECT @kw = (select 扣重 from inserted);
    SELECT @aw = (select 实重 from inserted);
    SELECT @price = (select 单价 from inserted);    
    SELECT @money = (select 金额 from inserted);
    SELECT @zfxs = (select 折方系数 from inserted);
    SELECT @square = (select 方量 from inserted);    
    SELECT @weighingcost = (select 过磅费 from inserted);
    SELECT @gwtime = (select 毛重时间 from inserted);
    SELECT @taretime = (select 皮重时间 from inserted);
    SELECT @url = 'http://ip/saveweight/' + CONVERT(INT, @fbillno)+'/'+ CONVERT(VARCHAR, @carid)
    +'/'+ CONVERT(VARCHAR, @type)+'/'+ CONVERT(VARCHAR, @sendplace)+'/'+ CONVERT(VARCHAR, @consignee)+'/'+ CONVERT(VARCHAR, @material)
    +'/'+ CONVERT(VARCHAR, @specification)+'/'+ CONVERT(VARCHAR, @gw)+'/'+ CONVERT(VARCHAR, @tare)+'/'+ CONVERT(VARCHAR, @nw)
    +'/'+ CONVERT(VARCHAR, @kw)+'/'+ CONVERT(VARCHAR, @aw)+'/'+ CONVERT(VARCHAR, @price)+'/'+ CONVERT(VARCHAR, @money)
    +'/'+ CONVERT(VARCHAR, @zfxs)+'/'+ CONVERT(VARCHAR, @square)+'/'+ CONVERT(VARCHAR, @weighingcost)+'/'+ CONVERT(VARCHAR, @gwtime)
    +'/'+ CONVERT(VARCHAR, @taretime);
    print @url;
--     insert into one (id, name) VALUES (@id, @url);
    
    exec sp_OACreate'MSXML2.XMLHTTP',@object out
    exec sp_OAMethod @object,'open',null,'get',@url,'false'
    exec sp_OAMethod @object,'send'
    exec sp_OAMethod @object,'responseText',@responseText output
 
    print @responseText
 
    exec sp_OADestroy @object
 
    SET NOCOUNT ON;
END
GO

EXEC sp_addextendedproperty
'MS_Description', N'称重信息表插入后触发器',
'SCHEMA', N'dbo',
'TABLE', N'称重信息',
'TRIGGER', N'kingdee'

看着复杂其实一点也不复杂，因为这个数据库的表是中文（不是我建的表系统中的中文的我没办法改），大致就是获取插入的数据然后进行触发，请求，然后API执行插入另一个数据库。
然后执行插入语句就可以看到执行的结果了~