以前没有接触过这方面的内容。给你找了点资料，希望对你有用处。) N Q3 U& h( p/ k
. k) T$ `9 F, Y. r8 A- Visual LISP中使用ADO接口与MS-Access相连接8 k( h* D) m( o- I! I, z7 y5 V' K
- 在Visual LISP中使用Microsoft ActiveX Data Objects (ADO)接口与MS-Access和
9 |+ y2 K% v3 u; C - SQL Server相连接的例子。
9 ^5 L( \, L! b7 c/ J3 u/ i" ]
" L/ Y5 m7 U2 b- 通过类型库初始化ADO接口方法：
( ^5 l% R) F9 h, B3 l$ O - + g% y* H- a+ [. }) w) z
- (defun DbInitADO ( / ADO_DLLPath)
# k7 M& W. t' t1 m2 v - (if (null adom-Append)8 w1 J5 e U( P6 [
- (progn
5 z* @* Y& w7 T/ q! B/ i" ^* S - 8 C2 j* n: ], r
- ;; 尽管你可以把绝对路径输入到这里，但利用系统查找到的系统
J! r0 }. S" ~ - ;; 文件夹将会更加合理，可以避免不必要的错误。
3 | w3 f/ y; a9 @, ?- K" d. S
( m9 P/ w/ p& p; X/ `& s- (setq ADO_DLLPath
$ d+ @8 H: r# Y- B - (strcat (getenv "systemdrive")$ G+ _* r9 V- j8 F
- "\\Program Files\\Common Files\\System\\Ado\")
! D, ~5 w) v7 J0 E! P; N - )- d6 v9 _; C2 `- A' |( {1 }
+ y0 P, L' w8 ~& O2 V$ S, U- ;; 如果查找到类型库 ...
6 S$ x- T) h3 R4 @: f3 r0 P
: X+ S( q, j- ^9 d+ i* B5 E- (if (findfile (strcat ADO_DLLPath "msado15.dll"))$ O! x d( i2 _, k; z) Y6 a0 D$ q
- " I! l! O2 X& K: s% G
- ;; 将其输入% I6 R4 e3 _+ y) e
# M/ W8 c, s- l- p% |" ?- (vlax-Import-Type-Library
X- z( O( K" |; R# X2 i! t9 `- L - :tlb-filename (strcat ADO_DLLPath "msado15.dll")- ]1 V5 ~! E! d
- :methods-prefix"adom-"
* K7 R1 x0 G+ g7 q - roperties-prefix "adop-"
5 ~, i+ S% W7 Z+ p) d u& ` - :constants-prefix"adok-"
" K0 N% n1 e" ^+ m! U+ q9 [ - )" j9 W. Y: C [( a: `6 h) @
- ;; 找不到时，则通知操作者
/ c6 ^' F9 }% t e* h: B - (alert (strcat "不能找到以下文件\n" ADO_DLLPath "msado15.dll"))
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- )& \0 Z1 M" k" U" |7 k4 b. w J. h
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- )8 c! A. t. K5 J" }: x
- 5 D+ x# B% t: z. C# E6 r
5 [1 W' }0 {8 N5 q! ^- 生成MS-Access 或 MS-SQL Server 数据库的连接字符串
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2 N) w4 G ]" M4 o8 A- H& x6 O; r) X- ;;;******************************************************************
( u( W5 S( z+ R( e) ] - ;;; 使用ODBC(不需要DSN)连接MS-Access数据库
c* Q" q% i5 \9 C/ L - ;;; 示例： (DbConnect_MSAccess1 "d:/dbfiles/products.mdb")
5 Y4 o4 v4 D& [1 \: o - ;;;******************************************************************# {9 E# M3 ?8 u- Q) c: X
' P0 ?; q( ~ x. @- (defun DbConnect_MSAccess1 (dbFile)" R! J3 R% w' N4 B1 R
- (strcat) u: T/ y- {% T/ ^
- "Provider=MSDASQL;"
( k8 {7 N- j% A6 f( S - "Driver={Microsoft Access Driver (*.mdb)};"
+ z# _ ?9 V. b - "DBQ=" dbFile7 U$ ~, b v$ {* W7 p
- )9 Q9 ]( I) F9 p- O
- )4 g- @; F2 ~) h5 [
5 n `+ {' h4 r- ;;;******************************************************************
( S- w1 z5 X: X7 c1 w6 K' L - ;;; 使用JET 3.51连接MS-Access数据库
; ~5 q& z8 `+ c) v4 L6 f( H - ;;; 示例： (DbConnect_MSAccess2 "d:/dbfiles/products.mdb"); x* q7 `4 w3 C. K
- ;;;******************************************************************6 i( K6 a3 r6 A5 P1 ]
- ' [- X& d/ Z( }; S O9 c
- (defun DbConnect_MSAccess2 (dbFile)
t: N' b% b4 p - (strcat
% f- p& ~" q7 _: [2 p; ? [" J9 t+ l% H - "Provider=Microsoft.Jet.OLEDB.3.51;"- U* B% ?% j$ ?7 J$ L
- "Data Source=" dbFile! p+ h, N; _% G: Q3 x9 r8 u! L
- )4 x# ^/ t9 Q: ?' e3 ~
- )
: u2 p& S* O' q
. t$ Y9 ]- ^; S$ ~2 F5 x1 J& n: Z- ;;;******************************************************************) L. l0 M* U; t7 w1 t* G/ o
- ;;; 使用ODBC(不需要DSN)连接MS-SQL数据库5 z- Q! ]+ p" J. t5 u& s
- ;;; 示例： (DbConnect_MSSQL1 "SQLSERVER1" "products" "sa" "")* V7 u1 Z& L4 d1 Y
- ;;;******************************************************************5 z2 p' k" F3 z; q1 I/ j# M
$ A* a' E" s0 b- (defun DbConnect_MSSQL1 (dbServer dbName dbUser dbPassword)
) M9 g) t$ N) }' I3 B- `8 x - (strcat
$ K3 r0 _8 c4 w - "Provider=SQLOLEDB;"' `! n) `3 v8 x" i
- "Driver={SQL Server};"/ z2 R" d; f- t! o9 K1 Z1 N
- "Server=" dbServer ";"3 V9 a4 s2 w- _
- "Database=" dbName ";"
0 b" l9 z3 c2 {$ F, V' N2 k - "UID=" dbUser ";"4 I2 Q( u. ]& F
- "PWD=" dbPassword
/ L1 @0 j$ I$ Q) O: s6 _ - )! f8 ^: w& j* c- B+ Q Z
- )& o: r' J: V1 {! J
* c3 ~# ~' ^0 f/ Q- ;;;******************************************************************
! q2 h3 z! J" }6 w, H( N! D - ;;; 使用ODBC连接MS-SQL数据库w/o# F0 W+ N" b6 D; {
- ;;; Ex. (DbConnect_MSSQL2 "SQLSERVER2" "pr_catalog1" "sa" "")4 c2 ]4 N/ B+ u8 ~, N
- ;;;******************************************************************; o% a% Z6 u' @: s
- " p2 z% o2 S6 @4 I! B
- (defun DbConnect_MSSQL2 (dbServer dbCatalog dbUser dbPassword)
5 q- o. m9 _* ?/ i0 R; E! [ - (strcat S5 w8 }/ `6 P+ {3 T1 K& e* s- }
- "Provider=SQLOLEDB;"
+ R. [5 S7 {9 ^6 k6 D: e* I' Z - "Data Source=" dbServer ";"+ r" O4 g, J6 [1 j+ j& X
- "Initial Catalog=" dbCatalog ";"
, z. x* o! K* ?) | - "User ID=" dbUser ";"
- t- N9 v- m. L* x p4 D% f) f# l - "Password=" dbPassword1 e. q4 y, ~ I, W
- )
' @3 `4 ?& C/ E/ ?8 g - )" W# h: e( N" f5 R% _6 x5 p
$ N' e8 `, S$ Q9 p3 N- ) F; p. a% i5 C: f
- 生成适合不同情况的SQL字符串
3 Z! n! X" s" W. k+ E6 l - (colName和Value可以为'nil或有值。如果Value为REAL、INT或STR，它可以计算到适
/ @1 F$ Q' [/ f; z9 ] - 当的值中来取得正确的查询语法
& V9 m: F! H1 u& X8 Q0 ?4 t8 q
3 d5 p6 Z' q$ H* y- (defun DbSQLCommand (tblName colName Value)
* g9 X( }4 A1 V4 Z! g k+ b - (cond% }7 ~2 |8 B; @% ~* d
- ( (and colName value (= (type value) 'STR))
4 C5 O X3 C+ [" @ - (strcat "SELECT * FROM " tblName " WHERE " colName " = '" Value "'")7 R& u: x. @! l# V( A% Z
- )5 n z3 l& b$ f/ S# o5 P# A0 I$ \
- ( (and colName value (= (type value) 'INT))9 h. D$ b; M# ?1 Q/ @1 X2 s/ ~* ~
- (strcat "SELECT * FROM " tblName " WHERE " colName " = " (itoa
4 @6 n6 D* Q2 c - Value) )
' Y8 g5 s7 \$ z- o5 F- b, s/ H( T - )$ B* C) M, g2 w, Z8 v; R- ?5 W$ |
- ( (and colName value (= (type value) 'REAL))
6 n( q6 ]: [0 x. |9 i/ n, K - (strcat "SELECT * FROM " tblName " WHERE " colName " = " (itoa (fix/ J+ N" _/ e$ D5 } m1 \' `; h
- Value)) )" h' b, {9 Y# E }' d0 T4 D
- )
. W! u9 R6 x5 Y! D - ( T (strcat "SELECT * FROM " tblName ) )1 i. m1 z, q2 N) ]( H4 r& p
- ); cond% e9 o6 o' Q" O. {$ h) J# C- b
- )% b9 {4 \) q. g1 n% Z9 D- n8 V
- & S) d: v) J$ s: D% F* T, ^- f* t
- + U( ]6 E. y ^; d W8 q/ o( S+ w$ N
- 从内存中释放VLA对象& Y* n8 O* p. w k
; @/ e; s; [' A! ]5 f; o- (defun MxRelease (xObject)
1 q& E6 f& p' w0 k$ ] - (if (not (vlax-object-release-p xObject))# J, S& q6 W2 w
- (vlax-Release-Object xObject)7 I, ?- H. m/ e- B$ a0 C% n( _
- )9 I0 q0 X; c+ Q9 O X8 x
- )
1 ` ]/ G+ R* _# e0 T - $ \: }# z8 W5 g! M5 G
- 关闭ADO Connection 对象并将内存释放出来
) W/ K# e* a$ p' g; N3 j& j2 G - 0 J% Z. w8 V) I* f& A5 e% E3 u
- (defun DbCloseConnection (dbConnObject)8 l: }+ p; b2 o# c
- (vlax-Invoke-Method dbConnObject "Close")3 _5 j8 R) C: Y5 _7 s" O" l
- (MxRelease dbConnObject) `/ k) W8 `% D7 q; V3 z+ |. O$ ?
- )/ Q! L% v/ i, ? P4 Q* y# u; c) b0 \
# E+ C+ b% a7 _4 \- 3 N: A- v8 I1 I
1 M$ J1 B* G0 P w$ M; Y- 关闭ADO RecordSet对象并将内存释放出来
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^# i; x o, z& G O- (defun DbCloseRecordset (rsObject)
# j/ C, c9 @' A/ ]9 d) N1 F' {0 j! o - (vlax-Invoke-Method rsObject "Close")
( G# ], [3 Y: b4 Z: `+ D3 L - (MxRelease rsObject)
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& V# W, n- A1 m. F6 D) |
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: Y$ P1 p9 @* n8 C9 ~: L2 B6 u- 布尔测试RecordSet 是否为 Closed (T 或 nil) j( R* U3 s ^0 Q
- : @5 W+ X( a p) a: p; c2 X
- (defun DbRsIsClosed (rsObject)
- p. D6 E C. h5 w - (= adok-adStateClosed (vlax-Get-Property rsObject "State")); Q' \9 b; j1 @
- )
: n% \3 ], i3 i
% Z) X, J+ E- a: R- ! J. E0 f* |) d) M/ v; s
- 返回一个ADO RecordSet对象中的记录数
/ K2 t+ K; W/ M8 G - 9 @' _& f+ `, u4 z& `) |
- (defun DbRsCount (rsObject)& u" [- C$ ?0 s( c; t: \% P
- (vlax-Get-Property rsObject "RecordCount")2 J3 f2 h# i2 t& ~; Q; @. Y8 {
- )
# Q7 x3 N. R# D+ h2 g* g! T0 @
# c# J9 |& `) R- H
, x* o' v r- ~- 返回Field对象中给定字段数的字段名称
/ H G0 l8 q+ H) {( e! @2 o
* E; K8 ~; [6 P$ E: D0 q- (defun DbGetFields (fObject fCount / FieldNumber)7 u' T) _$ Y6 X9 U. s: ]" V
- (setq FieldNumber -1)# D( @* H5 x2 Q; I
- - M% W3 E2 x4 a$ i" [( x( n
- (while (> fCount (setq FieldNumber (1+ FieldNumber)))1 [) F3 w$ T7 r; x' W6 I
- (setq FieldList+ N2 x$ U# k! c/ [% S
- (cons+ S1 \- z) Y" h, F- }9 b3 Y
- (vlax-Get-Property# m9 m8 n1 q( r4 L" d3 c* \& V
- (DbRsFieldItem FieldsObject FieldNumber) "Name"4 v( P/ [3 [+ }+ ^, p5 \% v' X
- )1 `& T6 ] Q+ _! c( ]3 }
- FieldList5 Q5 ~2 m2 E/ U# b% l( m Z6 e
- ) c# g5 Y0 ]& t- _" R# d: l# a
- ); setq7 J, v1 D! G/ m5 u
- ); end while `; A- p# E* D) H3 b0 k
- ); defun8 g' Q" s+ R# I+ L! U& C
" c: D I9 i( [
5 M: `1 c! F. r3 h, d# ^, x1 }+ B- 从RecordSet对象返回ADO Field对象 h ~" ^: G" s: }. K. b0 B# T( u
- ' L% _* G$ ]& e. V
- (defun DbRsFields (rsObject)6 E" G: S. G3 t, C1 G* _
- (vlax-Get-Property rsObject "Fields")
2 d! J1 `4 w+ n - )
2 m7 b" S- @* g ^3 {6 I, J - ; A. k6 F) K7 p3 p0 ?) v
+ {5 y. b5 w: E4 V- C! |' W B- 返回给定Field对象的字段数量8 e# f; d, [) d$ \
- % ?4 S# w9 I ]4 E0 z
- (defun DbRsFieldCount (fObject)7 _) j9 ^% _ Z' U, f
- (vlax-Get-Property fObject "Count")
& T/ N& Y6 i; z - )
. j4 ? u/ |2 F4 Z$ G- f+ f0 N; X! l$ y - ' }" A- `+ D: {0 H @
- 7 L) a5 D1 D3 L4 _# x
- 获取Field对象的字段名(项)
" T2 }% P7 J& X2 N! T: v7 j - 2 { J0 E% c: d, H# X( K0 M- P
- (defun DbRsFieldItem (fObject fNumber)
- ~1 \- Y: w& M6 d2 p - (vlax-Get-Property fObject "Item" fNumber)
) J8 x# N6 z" P1 s9 Y - )$ ?+ A. ^. u' K, F2 |
- 6 e% H! l* A4 Q1 g; p: u: \7 Y
- / Y! l8 m* g; }
- 返回RecordSet对象的RowSet对象
* P+ p2 {( Y1 W' @# @9 G% a6 F
& y. \3 |& @, m/ v8 v* @- (defun DbRsGetRows (rsObject)2 L( j* u. b, u3 p9 s. I
- (vlax-Invoke-Method rsObject "GetRows" adok-adGetRowsRest). D+ z* G( ]& Q- e* ]9 A0 H$ R
- )
1 i3 y4 b& R! @. B2 n, P: C! j - % L( m) b( ?6 r, s* }3 s
+ ^0 [6 d5 |/ I1 | J- 应用一个ADO光标类型到给定的RecordSet对象
/ K( {6 ^! Z% J% h) ~) W
- Z' r6 m! P1 b- (defun DbRsCursorType (rsObject curType)( C! T6 W0 a% j" i! P, ^
- (cond% V5 j3 [* e7 N2 F
- ( (= (strcase curType) "KEYSET")3 ], x1 v* ? ?1 d \; h& g: T p
- (vlax-Put-Property rsObject "CursorType" adok-adOpenKeyset)
6 a+ M5 z f3 f2 w( ~& v9 T - )" `: f' B. [* e, u1 y
- ( (= (strcase curType) "DYNAMIC")1 f+ o: I- Y$ i7 t6 c* K6 [1 y
- (vlax-Put-Property rsObject "CursorType" adok-adOpenDynamic)
/ k( u: Q1 }, B& p- Y( I - )
/ W; E. S S( n - )
2 j9 f9 ]! [! F - )
! [7 G2 `7 p9 s# }7 w l8 m& v
4 _: C: g5 [" {- 6 j: D* |$ }) I( I% [
- 应用一个ADO LOCK(锁定)类型到给定的RecordSet对象
! K4 s" Y, k9 |0 t; O3 W" d/ a* J - 9 E! r/ p; u/ d7 f! ~4 V
- (defun DbRsLockType (rsObject lockType)! G8 x7 C6 a0 h# H
- (cond6 a7 E# V+ y4 U. _
- ( (= (strcase lockType) "OPTIMISTIC")
6 \) ?, E5 h1 Z- ] - (vlax-Put-Property rsObject "LockType" adok-adLockOptimistic)
% Y6 H1 H' @! O& S- T0 p$ h, x4 j - )' m' Z8 U( a2 R
- ( (= (strcase lockType) "BATCHOPTIMISTIC")" T" ?: M7 K0 j V3 T
- (vlax-Put-Property rsObject "LockType" adok-adLockBatchOptimistic)4 i8 o4 V2 S) F* c5 }' K# e; Y
- )
0 C- n2 G0 ?; s2 R" N - ( (= (strcase lockType) "READONLY")# O: w6 c7 q- v& G4 m$ ]
- (vlax-Put-Property rsObject "LockType" adok-adLockReadOnly)( N( U' ]) H- m, h: S0 K$ O F
- ), y! W; T+ |& ^- h a1 y! ?
- )$ v+ X# i5 c P4 q* m5 Q
- )8 Z& A: ?% J+ s# V- }
- 1 C) L$ h# g; V0 C
' v1 s1 D4 \: a9 ^3 J- 创建并返回ADO Connection对象5 U! B+ ]' Z2 A
- & K$ f+ p. q, S" Q+ z2 A8 h
- (defun DbConnection ()6 F" \5 }6 P7 |7 h9 S& \0 R
- (vlax-Create-Object "ADODB.Connection")6 l/ p2 ~3 D5 {% M( j
- )7 H& A' Y( {/ Q# ^* W
- # @- ~( X0 u( A* a) N
- / s( V2 w$ ?# N' p1 l, J
- 创建并返回ADO RecordSet对象; v/ G4 s9 o* V2 B7 Z$ ^/ v3 ]
* i$ u: K$ g: W2 v I1 y$ q- (defun DbRecordSet ()3 O: \, @# T5 X. a
- (vlax-Create-Object "ADODB.RecordSet")
% t ]- M5 l5 H. C - )
' u0 p+ C: B G. { - 9 L: _- u. F' f* S& X, {9 a3 b# y
% C- V' K$ Z. J9 V+ a Y2 s! ^1 l- 将所有出错收集到一个点对形式("name" . "value")的列表中的函数
% S1 D0 d) @. L. T, \" a- l
6 v: C% `0 v0 t" k- (defun ErrorProcessor b# m: F' o9 O. f3 | }9 q
- (VLErrorObject ConnectionObject / ErrorsObject
r6 g! a& |) d0 ?# c2 V( [ - ErrorObject ErrorCount ErrorNumber ErrorList
0 u Y2 Z) K/ ^$ O# u - ErrorValue- `* u. [9 v$ }% N, I
- )$ B" M! i/ t/ x+ Y% f2 g. A
$ m6 h- f' q* R- ;; 每一步获取Visual LISP的出错信息8 N8 q; X# B( M [" U
- 1 s- l4 C: Q3 {, M- Y+ o
- (setq ReturnList6 k5 ~' k b, r' E/ M
- (list) L3 D' ^& s* L8 {( H
- (list
3 A2 v$ l( S+ v% p; w8 H$ y, e - (cons "Visual LISP message"
9 l; y5 [% x; ^! L5 N - (vl-Catch-All-Error-Message VLErrorObject) X' l( q" |+ q3 i
- ). O& o. L6 d. s9 X
- )
1 G! A6 y5 b9 p* P! a - )
F# M" G, q2 K$ C8 G+ ^/ V - ;; 获取ADO出错对象及数量
5 U6 w$ C, O$ b- U5 E: w( D) A
# P( _. q, C Y3 |- ErrorObject(vlax-Create-object "ADODB.Error")
0 x$ L3 k1 Z$ G9 i0 y7 E - ErrorsObject(vlax-Get-Property ConnectionObject "Errors")
1 ]2 ^/ G. J5 B; f Q: ]+ v: J* E - ErrorCount (vlax-Get-Property ErrorsObject "Count"): }+ ~/ N# }* U% v7 Q: F) \3 @& u
- ErrorNumber -1: }& U3 p! `9 i
- )
3 K2 M9 @: J6 f9 _ - % y$ h) T5 @! S
- ;; 循环所有ADO错误 ...& U% E/ ?- `2 w |) [2 I7 q4 B
- (while (< (setq ErrorNumber (1+ ErrorNumber)) ErrorCount)) G: u- k B) \; Z& U7 }7 w* I, p3 ?
- % ?+ j* E; b1 E: V$ B
- ;; 获取当前出错的出错对象% z! S& b2 m( Y! }7 n9 M
- (setq ErrorObject (vlax-Get-Property ErrorsObject "Item"
5 e# C* T. n# k - ErrorNumber)
9 \: N @ @2 Y3 i9 X! F) p - ErrorList nil ;; 清除该出错的列表项# Z, n, F" U9 j$ t5 U
- )
" E" b% w6 D. s( n2 e5 u$ j4 s - & a; G' @8 D1 U+ T
- ;; 循环该出错的所有可能的出错项% z8 s, u( E( M! w. g
- (foreach ErrorProperty
9 V" @" T+ X& z' Z# K - '("Description" "HelpContext" "HelpFile"; o5 a) T- M6 \' R1 g* J/ B
- "NativeError" "Number" "SQLState" "Source"
5 J& \; ^( ?# c, f! t- U9 o - )
" }/ a7 }, q3 { - ;; 获取当前项的值。如果为数字 ...! @/ i1 Y' e! q. w
- (if8 j+ R" ~) ^: X
- (numberp
# X5 ^5 v; G# Y/ }2 Y- O - (setq ErrorValue8 S8 J: d" ~3 R" x" m, \: N' v) H" O
- (vlax-Get-Property ErrorObject ErrorProperty)) R$ O$ e! }: e# y
- ))7 V& w" K% O* G- \7 d) c, a
- ;; 则将其转换为字符串以便与其它一致
0 g8 o$ e/ G; z$ q$ |: ~7 B3 e - (setq ErrorValue (itoa ErrorValue))" `9 U, d9 W+ `6 [. V9 J$ B% x
- )% C$ T! g$ P2 B( s G
- ;; 同时保存起来, X8 j9 @" g9 K. p: C7 x
- (setq ErrorList (cons (cons ErrorProperty ErrorValue) ErrorList))
4 ^" v, Y A4 b p - ); end foreach
/ l- e5 U% }/ A" F+ K( s% y
7 u- d" }: F' Z; _# k: p- ;; 添加当前出错列表到返回值中
' O5 \) M/ i& c, Z4 g5 } - (setq ReturnList (cons (reverse ErrorList) ReturnList))
4 q5 l. p E; \8 R! @4 j - ); end while6 L8 ] i, J' Q* |" }) {- y
- 5 E9 G* \2 m, V# i
- ;; 将返回值设置为正确的顺序
* g6 I. H( l7 R" E% X - (reverse ReturnList)$ e- @+ Q+ t P' p, ]- x( a) Z
( `# e' N% H9 s! W U- ); defun6 ]/ F9 y- Y: Q3 y
3 O4 Q. L( m. o! n9 ~; [* ^- 0 Y! |& T9 W5 i5 }/ A0 v8 E. R
- 显示由ErrorProcessor函数生成的出错列表的函数。该函数与ErrorProcessor函数分开是* |2 r" ~( M F; }4 }
- 为了ErrorProcessor函数可以在DCL对话框显示时被调用，然后ErrorPrinter可以在对话* G+ S9 P; c- S0 y
- 框结束后被调用。
) c8 [' j8 r0 p, y! \
# A: g3 F7 ?$ q5 `9 R0 a4 t I! j$ R9 k5 i- (defun ErrorPrinter (ErrorsList)6 U6 v4 _) @: t) ~: Y
- (foreach ErrorList ErrorsList
- s9 {+ z% t( v% ` - (prompt "\n")# s/ [2 @0 q5 M5 U3 Z
- (foreach ErrorItem ErrorList
6 U1 e, M$ \- _! u0 J - (prompt (strcat (car ErrorItem) "\t\t" (cdr ErrorItem) "\n") )) _* d; X8 _$ Q* f. B; x
- )
' P: z$ j x7 r# w8 S0 j1 i: P - )
Q+ R+ {; P2 k5 v1 ?+ ]) C - (prin1)
1 m: r9 _1 X# G( u - )# A. ]4 ?; n( O* W6 X, d
- " K* u1 s- `) r6 U
- 8 J" R+ C+ U T L S; ]6 S
- 以下为使用ADO的完整例子：2 F& R( e; k7 i1 q
" ]2 e N% C" }+ ]1 [; H- ;;;******************************************************************
/ d5 b; p% a7 j- O' y- [6 h- Y - ;;; 从Access数据库文件(dbFile)的表(tblName)中清理掉列(colName)值为给定的
$ \6 x* Z" @" c8 q - ;;; (value)值的表记录6 [0 `* H+ @8 w
- ;;;******************************************************************
/ D) p' U" G6 L
+ }8 N( {' o L9 [- J0 t& \- (defun DbTableDump
! j m% N) k5 o! h; S - (dbFile tblName colName value / SQLStatement ConnectString)2 o6 M ?1 Q) x. q) e
- * H( w7 P8 F+ ]. f, A& P% U
- (setq ConnectString (DbConnect_MSAccess1 dbFile)
2 t& q6 \/ ]: V& }4 e - SQLStatement (DbSQLCommand tblName colName value)9 }2 P2 b) N: Z
- ); setq _3 ~0 c+ N7 R+ _- J& p8 W( g* F
- (DbQuery ConnectString SQLStatement)
9 z2 y4 i/ `+ E$ U5 S3 I - ); defun
3 `; w8 Z; h3 a$ o* q9 w' u - ! N" N. X o6 e; g) e" l6 F) n
- ;;;******************************************************************- p) s4 b& ] ]) e5 T! y3 v9 I
- ;;;ADO 示例程序% `8 D. u3 G8 n# y. A
- ;;;******************************************************************0 k5 R0 l _6 D
- ;;; Connects 使用了公用变量ConnectString所指定的连接字符串，而SQL语句为公用
' F. {9 J5 D' `% }& h$ D4 n - ;;; 变量SQLStatement。1 L- x& U4 u p, c/ I. ~ E: n
- ;;;: t" `$ |7 Q9 X8 V4 }9 c
- ;;; 返回值:
7 H0 V2 ?/ o* }+ l& v9 x - ;;;
6 q1 D) {4 z: w - ;;; 如果出现任何错误，则返回NIL。, q* O) T8 u1 s& }1 |, m8 V" A
- ;;;
* J1 o1 H& }0 G2 S" _; [ - ;;; 如果SQL语句为"select ..."语句则可返回行、返回一个列表的列表。第一个子列表1 |3 i1 t. v+ ?: o" Y
- ;;; 为列名称的列表。如果返回值中包含有行数据，则随后的子列表包含了与第一子列表中
6 \5 u# k# p3 L, q5 @9 n g5 s" Y - ;;; 列名称顺序相同的子列表。; p/ C" t( h9 ]8 a$ n T$ {. J4 Q
- ;;;, o( }5 O* |0 S3 K; E( Q
- ;;; 如果SQL语句为"delete ..."、"update ..."或"insert ..."则不能返回任何行，/ y9 Q# [" c+ S, m8 w. } W0 D
- ;;; 它将返回T。作者想让它返回所操作的行号，但到目前为止还找不到方法。. H3 M' {" a: u* b3 [3 C, Q- I M
- ;;;******************************************************************. e' p$ p0 o4 {0 g. p4 r
- 6 i" a* o- z" B4 m: ~- c! _5 r( x# p7 V
- (defun DbQuery0 u2 v5 z* C0 M# S# h$ M
- (ConnectString SQLStatement5 j8 n2 }! l2 r' V5 R
- / ConnectionObject RecordSetObject FieldsObject FieldNumber
: E% Y! R9 o, }8 G: j6 O; [0 e - FieldCount FieldList RecordsAffected TempObject ReturnValue
+ l0 W2 y7 r: U- e% }" V, L - )6 Y: y- C6 A' X8 n
- , g' ?+ H; N7 X9 {5 b# c' r, D% n& A
- ;; 创建ADO连接对象. B- f# w( |2 q/ {
/ m# K) q2 M; O0 a6 j) a- (setq ConnectionObject (DbConnection))
0 G- c! i$ g+ P6 m& j) | - 8 @0 r' Z. N% u
- ;; 试图打开连接，如果出错 ...8 M9 z& s" {! x* i3 P
- - g! h0 ~. U" k" c' Q4 Y% l
- (if (vl-Catch-All-Error-p
2 l9 l$ u$ o2 v# s+ v& D - (setq TempObject
+ c p; V6 m; F- J1 @& c - (vl-Catch-All-Apply
$ R; r3 [* H% Q( _8 z h& ~' } - 'vlax-Invoke-Method, _: Q) K: H1 C; T% \) O3 M
# ?( L3 b2 `9 P. }" o; m- ;; 如果在ConnectString中已经包含了"admin"用户ID和""密码，则这; d# I Q, \ Z% i& A; B+ C" o, S2 d
- ;; 两个参数可以不需要。
- L" o. B' X! L" v8 R7 ]$ O& P8 j. n - - T, ]9 i$ D6 R
- (list
2 [: @' v2 _) [5 j5 a: e - ConnectionObject
' w, B) K8 Z& B+ f! l3 h. C$ [ - "Open"
6 j8 [4 \ e: H v& h c1 k1 D - ConnectString
; D+ c- q) Y: l+ y - "admin" ""& c7 e4 p$ [# V$ H2 u" g0 c
- adok-adConnectUnspecified
- ~1 f* `5 q# C- W1 P# ]. ?+ f - )+ v: _- _& \/ w) q
- ); vl-Catch-All-Apply
; r0 J3 W( B6 ?# N - ); setq
% w9 Q/ `; w" d" q& o/ p/ v+ [- d - ); vl-Catch-All-Error-p
- G7 U( B7 |1 e5 {' F - ( r8 H( i: e, F8 d4 B. I8 s- i, e# B o
- ;; 则显示出错信息
8 E7 m0 s& S# u% t- u3 h0 f+ D' p( E - 2 B8 n+ O# B7 z. q6 ^( x
- (ErrorPrinter (ErrorProcessor TempObject ConnectionObject)); z; c* |" F5 T
- ; p: B6 P: q0 v8 Y" Q6 }" d
- ;; 打开连接开始处理 ...
, g) }9 \& R1 S* E- w6 e( F
) {3 @; w/ {' `) P1 M- (progn
& i% Y9 z+ M9 r T( t1 E
( L! D+ H8 [, r% ~- ;; 创建ADO Recordset并设置光标和锁定类型
+ x. W* d7 c4 j
# A! C6 u. d4 t" z- h- (setq RecordSetObject (DbRecordSet))
% p% K; v% ?& W0 h$ k3 q w - (DbRsCursorType RecordSetObject "keyset")% G7 q' H- W5 j: |
- (DbRsLockType RecordSetObject "optimistic")
4 Z3 M% I v3 `1 p
2 E8 V2 J) f+ q- C1 x% n0 d/ _- ;; 打开recordset如果出错 ...
& k2 H9 q# V) T7 D
* i' L4 Q# t% u( w0 P( m- (if (vl-Catch-All-Error-p* O* `' y: m. B0 ?4 N0 I% h
- (setq TempObject
) E x% ]0 I \. A0 Z; g - (vl-Catch-All-Apply
3 h1 \4 j3 u; w' W' a8 J - 'vlax-Invoke-Method
) K! i t& M: j - (list RecordSetObject "Open" SQLStatement
2 ? s- n+ C8 O% E+ R1 W4 ` - ConnectionObject nil nil adok-adCmdText6 H# k+ s0 l) a1 |; c
- )" R' Y; g( m0 [; k4 n4 h
- )
. z; P8 R% T {! M9 }% f - )7 ] ]+ v: u' p. t' |( v1 O5 l G! x; \
- )
( h3 U8 G0 [2 W7 ?% A( O - ;; 则显示出错信息0 k7 J. `' _) P; W4 M. [; l X8 S
- (progn4 u1 u. \# Z; i2 ?2 e
- (ErrorPrinter (ErrorProcessor TempObject ConnectionObject))5 N: D1 b& t1 G
- )# Z( l' M ]6 |& e( w+ b% Z
- 9 x3 y% E( ~' L! w/ G
- ;; 没有出错。如果recordset被关闭 ...8 c2 q( ] O* ?; W
- 9 a1 {$ U- K' z" c
- (if (DbRsIsClosed RecordSetObject): H) c& M( d0 C) ~% q/ A; c
- 1 H3 u: H* Z( D% N
- ;; 则SQL语句为"delete ..."或"insert ..."或"update ..."，
! M, j0 l: `+ T! E, i0 r - ;; 因为它没返回任何行。这里最好能返回操作过的行号，但作者还不知道
# f+ P2 G3 x9 |7 f6 o1 s4 t - ;; 怎样写。现在只有把返回值设为T来表示已经处理了。: |! A4 n, C- U- k
- G5 s# Z" ^0 o- (progn* R: D' Y$ w5 d4 d2 D6 b3 c
- (setq ReturnValue T); ~" L" K2 w' v( F# t
- # t2 ~( Q n7 H6 r) ]
- ;; 同时关闭recordset，这时已完成。
: i2 g( g" T" U - (MxRelease RecordSetObject)
# w, v6 X g- @: l' ]; D. M - )8 d1 }" f# {6 M1 O) p
5 U4 T4 p# @1 v I7 x+ g- ;; recordset打开，SQL 语句为"select ..."。; U; o3 z0 D4 [
- 0 |7 ]+ A: F( K2 |+ ^' b' {( W2 b; j
- (progn2 m# i, Q2 o ]% O. @. Z* K
- 0 [" y* t$ C! \+ H5 F, l4 L
- ;; 获取Fields集合，它包含选定列的名称和属性。
/ L4 T4 t8 T# `4 P! ^
9 f) z: v5 Q1 ]0 _1 Z8 y/ S( ?: n+ u- (setq FieldsObject (DbRsFields RecordSetObject) ;; 将字段作为对象
; }4 d; `! T1 A5 j; P, q# c - FieldCount (DbRsFieldCount FieldsObject) ;; 取得列的数量3 e3 r4 n! }! m, h" H' Z
- FieldList(DbGetFields FieldsObject FieldCount);; 取得列表中所有列的名称* |/ k( `. O/ O0 |3 w! F, N4 z" r6 ?& h
- ReturnValue (list (reverse FieldList))8 @3 n5 k6 G* ~% H/ H$ B; o
- ); setq
, P7 B% t' w; A3 y3 j
; L& H; m* l+ s7 P' K6 j- ;; 如果找到任何行 ...
- S! }! C! U4 V
, J2 {3 }& t# `. z) Z1 O0 D# s" B- (if (< 0 (DbRsCount RecordSetObject)). d5 Q! z+ ~- q
- ( N1 |& o/ }2 Q4 ]( B2 N I
- ;; 我们来处理最棘手的问题!创建最后结果的列表 ...' h, s3 |$ E$ O5 L: n: {
( d" ~) Z$ F6 N5 C# u1 v- (setq
* E3 d1 n9 H8 X; R2 K: }! Y3 f - ReturnValue, d1 E( O' u9 h, p# h2 s2 X: q
& P4 p( e7 z) N! g G9 n# J- ;; 添加行列表到字段列表中。
* E$ ]3 I) z9 Y- o
1 r& x! Z. g, X7 \- (append (list (reverse FieldList))+ `7 [$ p# t2 _
* T# l) l& v1 m1 \2 I+ s9 y- ;; 使用了Douglas Wilson一流的列表转换代码/ S. B. T4 x9 S* W# J, f9 ^8 E
- ;; 来创建行列表，因为GetRows返回的项为列顺序
$ x+ V8 ~' r6 h! x
f9 w8 v4 }+ V9 T8 R! a- (apply 'mapcar
& r& a' S' ]1 c; ^" P - (cons" S3 \1 W! T2 d7 Z
- 'list2 S1 J/ G4 A: `& j+ o4 f
- , e" y+ [* a# }2 |' q1 s& m
- ;; 设置转换变体列表的列表到AutoLISP标准! ]9 f5 ^2 m* O# n; d9 u+ X
- ;; 的项目列表的列表。* ?: Z- u' B) m" P. W8 G
- 8 ~8 g `/ i/ r8 c2 B7 b
- (mapcar7 C5 T0 h& U0 y5 u8 @/ u ]( ~3 O1 C
- '(lambda (InputList)
( K2 u6 J7 U3 \* ]& o5 J# O* G - (mapcar '(lambda (Item)
D" Q1 g( _" G9 W0 M - (DBL_variant-value Item)
% ?- r( ?' Z; r3 C, p' w - )
) {3 j" C% B6 u/ m5 K( ?, U - InputList
' N/ v m2 n# U0 d9 t* t& K8 [( ~$ s - )
+ V) _+ F# W/ b, W5 L - )
" y' N+ r/ q! l/ E# ^/ h$ g2 c) M - ;; 取得行，将其从变体转换安全数组再到列表
( g7 J+ d/ t0 I1 A# J8 q! P' S; n - ) w9 x7 [+ C/ i
- (setq t2 (vlax-SafeArray->list0 t6 L% d) D& m E/ b0 m
- (vlax-Variant-Value
! p8 R, o2 J: [5 q! g - (DbRsGetRows RecordSetObject)' ^0 v0 d% Z' T4 p4 n0 h0 x
- )
0 }: o$ f' F- o# N2 d/ u( C - )
8 x" R* E$ f, D, n/ n1 U1 E5 ` - ); setq5 C6 T: _ B# j7 C! d" a
- ); mapcar* n5 V5 C |* f5 d2 S! t* U9 H9 z
- ); cons
; X1 Z/ a, j% P F+ F - ); apply. X% k5 @6 S7 |1 W
- ); append
) x7 ^2 `* b* H& {. | - ); setq
0 E+ B7 X: f7 f1 Q - ); endif
% i7 P* G+ c6 W5 \ - + I, m& Y' w. X9 E
- ;; 关闭recordset
2 P B8 L* g/ R5 z. C d - (DbCloseRecordset RecordSetObject)
" w4 y* l8 m8 C( l% ^! o4 G3 Y1 G
. a& a; e& u3 c9 g0 V- ); progn
" d+ ~& e, |- ?) B- m4 k1 I* h* ^$ d - ); endif
0 ^5 I+ N9 b* R4 @6 C8 Y - ); endif5 z/ N' J( D* A( R+ A; \
- 5 Q3 Q/ L: O- I: _' {/ r5 |- b
- ;; 关闭connection" S$ y9 D4 {' V2 n K
- (DbCloseConnection ConnectionObject)( ^/ c) f6 ]8 s5 x& H) ], v# e9 _
- 3 c+ i* t8 I" l! Z0 i
- ); progn" D2 w' w/ l& F4 e* g. R
- ); endif
; B6 ~0 x3 ^- q9 i2 U; ^ v
# D4 Z& C: b5 j5 C+ N& {1 }- ;; 返回值
; V9 p+ ~9 j! ]- m2 Z. ~) {- n" t5 { - ReturnValue
- r' {$ D* y* b% q: H; @5 w, r - + B8 {" _1 o! S H, W" U
- ); defun
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发表于 2007-3-30 09:09
发表于 2007-3-30 12:43
楼主