pb9生成guid的方法



pb9生成guid的方法

(2013-04-09 12:35:11)


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标签： pb9 guid 全球唯一识别码

pb9生成全球唯一编码的方法试过三种：
第一种最简单，不过遇到过几次不唯一的情况，所以放弃

string of_guid
of_guid = trim(gs_login_user)+string(gf_getdate(),"yyyy-mm-dd hh:mm:ss:ms ")+string(rand(1000))
of_guid = f_guid()
return of_guid

第二种，编译后脱离开发环境不知道需要哪些dll文件，有人在我的异常网上问过，没解答，所以也放弃

oleObject PBObject
string ls_GUID
long ll_result
PBObject = CREATE oleObject
ll_result = PBObject.ConnectToNewObject &
("PowerBuilder.Application")
IF ll_result < 0 THEN
messagebox("","连接失败：与PowerBuilder.Application连接出错！")
Destroy PBObject
return ""
ELSE
ll_result = PBObject.GenerateGUID(REF ls_GUID)
END IF
Destroy PBObject
return Mid(ls_GUID,2,len(ls_GUID) - 2)

第三种目前在用，也好使，需要rpcrt4.lib，需要定义一个结构
unsignedlong data1
unsignedinteger data2
unsignedinteger data3
character data4[8]





函数内容：

Constant Long RPC_S_OK = 0
Constant Long RPC_S_UUID_LOCAL_ONLY = 1824
Long ll_rtn
uuid u
ll_rtn = uuidcreate(u) //Create a new UUID
IF ll_rtn = RPC_S_OK Or ll_rtn = RPC_S_UUID_LOCAL_ONLY THEN
Long ll_pointer
String ls_uuid
ll_rtn = UuidToString(u,ll_pointer)
ls_uuid = Upper(String (ll_pointer,"Address")) //Convert it to a string
RETURN ls_uuid
ELSE
RETURN ""
END IF