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。* X0 i& b' d; a% p( J6 j
8 o) p! f: X; `% t# }" Y# \- S* z- Visual LISP中使用ADO接口与MS-Access相连接
5 }8 [. `& M, ^! M% Z% V/ {+ m | - 在Visual LISP中使用Microsoft ActiveX Data Objects (ADO)接口与MS-Access和
3 X; h i/ m2 o1 o+ T- \ - SQL Server相连接的例子。7 m# p! M. f$ v, H
- & n; L: A) f$ n$ u8 O
- 通过类型库初始化ADO接口方法:& M: o) L- @( ], `1 W
- ! f6 D& U% P l3 M+ g- \: `
- (defun DbInitADO ( / ADO_DLLPath)
9 w4 Z: |! d. r! h1 W$ _ - (if (null adom-Append)
" [) F$ w1 F! n- A - (progn
7 m( u1 j4 t3 G2 K8 C
}3 W9 f* |: x2 W) @- ;; 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/ e6 A0 _# m% X5 f7 c
- ;; 文件夹将会更加合理,可以避免不必要的错误。/ E1 H3 j ^0 C0 @0 l% V9 e
- # h8 m5 d2 Z0 N2 i
- (setq ADO_DLLPath
: S& I! K0 J% U - (strcat (getenv "systemdrive")
' s* S- m y+ H2 h! ? - "\\Program Files\\Common Files\\System\\Ado\")
7 L" [: P4 H; D$ l" p1 [5 G - )% T' c3 B, B- A4 D: R1 S5 \5 T
5 k6 H) A6 J* F% t5 B- ;; 如果查找到类型库 ...
4 U+ L7 _ v, z, C8 I* L7 ? - - \% E; r0 L E# \/ l5 ?- x) R
- (if (findfile (strcat ADO_DLLPath "msado15.dll"))
3 M# l, v6 T: W3 t1 z# b
) c; d7 H* l# F2 m- ;; 将其输入9 g! }! H' I6 r
, b8 e1 n. |8 A$ E0 v0 K5 ]- (vlax-Import-Type-Library
* h; S+ X- v/ Y& m - :tlb-filename (strcat ADO_DLLPath "msado15.dll")) } @6 t5 w. u( G0 ~
- :methods-prefix"adom-"
2 Z- y5 T$ F9 ]; r& @/ L - roperties-prefix "adop-"
1 q2 V: E$ j, X, L9 {9 q4 t/ g - :constants-prefix"adok-"
$ g- e" F: |6 c" J - )
! \& M5 ?0 k6 R - ;; 找不到时,则通知操作者* E/ ]$ s7 N B5 X0 q
- (alert (strcat "不能找到以下文件\n" ADO_DLLPath "msado15.dll")) H7 Z* F# ^, M+ g# x, ]; ]6 J( f7 B, C$ k
- )
8 E& K4 K# y) I6 `: `3 s7 ^ - )
5 [- n5 |3 r& n - )
: ?7 G1 a1 U- r" E( V4 [* ~ - )
2 B2 `( r% |" [; r# j
) b: m4 E% X9 [ I! h D! l/ \2 c
5 E8 b1 @9 L5 y- r- 生成MS-Access 或 MS-SQL Server 数据库的连接字符串
2 J {7 w# o) A! R' C4 X - 4 e5 W" }+ U4 H# R9 i2 P
- ;;;******************************************************************+ O, W: {9 Y7 q1 {/ [
- ;;; 使用ODBC(不需要DSN)连接MS-Access数据库5 y5 G( v3 I2 G: r( _$ k0 d
- ;;; 示例: (DbConnect_MSAccess1 "d:/dbfiles/products.mdb")# X5 c. B5 J! \" |# u/ u, I7 O
- ;;;******************************************************************8 [' _+ I8 n. o( |6 x3 a
- 5 S5 k/ c7 K7 H
- (defun DbConnect_MSAccess1 (dbFile)% U- J% c3 X( \% q0 n* s
- (strcat
; ^2 \! J8 p" k2 q; d8 Q4 d - "Provider=MSDASQL;"! B3 p# @- t$ y/ o
- "Driver={Microsoft Access Driver (*.mdb)};"
' D" u% U* l6 F7 M. K - "DBQ=" dbFile
: h& H6 N( k ]; c3 H1 k - )
5 r2 K7 y( I* i6 Z - )2 I* M _8 z# K8 e) d. F. }4 Y- K
- 9 N, G$ n( N9 V! P' f6 O
- ;;;****************************************************************** }3 H0 u, a4 C( A
- ;;; 使用JET 3.51连接MS-Access数据库
+ j- o) @6 K3 S% X0 H g - ;;; 示例: (DbConnect_MSAccess2 "d:/dbfiles/products.mdb")
: @2 v+ r2 f( K. ? - ;;;******************************************************************
; V! r" n: L- J2 M! X' N X* D2 `$ v
; J5 T; p# j1 Z( p. J- (defun DbConnect_MSAccess2 (dbFile)
5 |0 j( \% u( `1 t* n - (strcat' }9 t/ a$ u! X( t$ {
- "Provider=Microsoft.Jet.OLEDB.3.51;"
1 a4 G& R, j" A7 x - "Data Source=" dbFile5 f y1 r7 j* X' V( A' m) f
- )7 l5 P( b4 T8 f! U; r0 c
- )
+ Y8 h1 r5 ^" w+ h4 E - . d1 N4 d+ x8 l! [- E$ w2 T4 L
- ;;;******************************************************************
; i; R* \& ~, ?& Y4 j5 P - ;;; 使用ODBC(不需要DSN)连接MS-SQL数据库; U- h5 f Q5 O1 Z) p3 C5 ~2 q
- ;;; 示例: (DbConnect_MSSQL1 "SQLSERVER1" "products" "sa" "")! }: J# u# \8 T! c E+ _& J6 D5 |8 R
- ;;;******************************************************************
2 ?9 ~8 T" c: _% g. o5 g
) K8 n& o$ [7 D+ r) x9 n- (defun DbConnect_MSSQL1 (dbServer dbName dbUser dbPassword)0 a0 |: k2 F# c' b9 _
- (strcat
+ ]% Y! j+ m- A6 h - "Provider=SQLOLEDB;"$ F T8 a0 q7 y2 y& x, N
- "Driver={SQL Server};"5 k. ?0 T7 l. v: \# i2 I* A! N
- "Server=" dbServer ";"
4 K: `/ x5 ]( Y; o! U( Y - "Database=" dbName ";"
2 [ z. r0 A H- z- | - "UID=" dbUser ";". C% ^' W; K D4 `3 x
- "PWD=" dbPassword& @) k5 t) e z9 l# M, ~; {2 A
- )* M& M m: b M6 u" |7 R" R3 n+ l
- )+ {( A" I3 l0 p- n+ v6 L5 R
- + Y( d6 i$ i8 S- a0 F
- ;;;******************************************************************
/ ^8 s: r2 S9 y3 S" S - ;;; 使用ODBC连接MS-SQL数据库w/o
8 J' `( U2 m9 z4 H" `) {4 [9 m' \ - ;;; Ex. (DbConnect_MSSQL2 "SQLSERVER2" "pr_catalog1" "sa" "")
3 c2 W9 b7 X \; }0 S& { - ;;;******************************************************************
: k( W1 \2 m4 _' z6 Y \5 t. V - - S5 ~2 ?, a/ J' m
- (defun DbConnect_MSSQL2 (dbServer dbCatalog dbUser dbPassword)
: N+ c+ n! Q- @( | - (strcat
7 P, V: g0 s& {* L( W - "Provider=SQLOLEDB;"
: x/ f2 m, ^2 s% F x T6 A# Z M - "Data Source=" dbServer ";"
6 q* f7 A( F: `! d0 B( m - "Initial Catalog=" dbCatalog ";"1 r% R X9 M- H
- "User ID=" dbUser ";". [' o4 F& b( f! U/ z, Z
- "Password=" dbPassword
+ f5 [& [* z% o+ J5 S! I$ V* D - )
( }2 G' B* H$ [# t3 ^ - )
# n6 c& n1 I- @- L8 E - ! i; T3 w( H( b" n7 M7 C
5 Z: F. R- W4 E* U7 K, Y5 [. C2 E, c- 生成适合不同情况的SQL字符串( Z8 T( }+ K/ m& m3 _+ N% H
- (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+ Y: L8 `9 |+ e0 f
- 当的值中来取得正确的查询语法& I7 ~3 n& G3 S6 I' {' `! M0 {
3 g% U! T# k& n# x. q7 x) b5 R- (defun DbSQLCommand (tblName colName Value)
& U+ Y- R! q$ P* v8 |. |; C, _; | - (cond% B3 z8 z1 q1 B# h7 [. y
- ( (and colName value (= (type value) 'STR))0 \8 j/ Q d4 N2 ?$ ~4 M
- (strcat "SELECT * FROM " tblName " WHERE " colName " = '" Value "'")# f9 D& X( S7 S1 k" l
- )# Z# T" A P3 Y/ {
- ( (and colName value (= (type value) 'INT))2 W( K; ] l Z: l Q
- (strcat "SELECT * FROM " tblName " WHERE " colName " = " (itoa
# y6 M! W( f: r$ ?$ J9 u* D! H - Value) )
! s0 Y1 }( f: |; j - )
% y$ k5 S0 J. C' Z - ( (and colName value (= (type value) 'REAL))& y& n, S% y: I2 u2 O& l
- (strcat "SELECT * FROM " tblName " WHERE " colName " = " (itoa (fix
& p: O5 X+ D* L N+ T - Value)) )
* ?/ [* i F* V. | - )
; b2 e# S/ J& g. p* B - ( T (strcat "SELECT * FROM " tblName ) )
% E3 A6 U7 ?* W9 C% E4 q/ g - ); cond- g; G9 w' _8 f- E' Q' A/ e( ? N3 M
- )6 J1 L' R9 V, g
- 2 p: ?. P( i8 [$ J- W; [4 _" d
- * y* `9 L4 _) H8 n
- 从内存中释放VLA对象
6 O) A8 v! k( o, [/ a - 5 y- C5 l2 T! p0 b6 l5 d- c$ V' _
- (defun MxRelease (xObject)0 q/ g) j' S8 E' Z& U& `! p
- (if (not (vlax-object-release-p xObject))( r0 I& T2 {* c* K
- (vlax-Release-Object xObject)
4 i7 c& ]3 a8 J1 V! {- S - )
1 z1 P# ~) w' s3 q& Z - ) \( l# o3 ?- U; \. y7 f$ j
- 7 g8 @" m; \: m' b1 G# v* y
- 关闭ADO Connection 对象并将内存释放出来8 Z! J, D- t0 F6 Z! [
- 9 X' G6 Y5 N8 n
- (defun DbCloseConnection (dbConnObject)/ D" O8 f, e' m9 r! g. q
- (vlax-Invoke-Method dbConnObject "Close")
" X5 p0 q& I% @2 \$ F" R* R1 Z2 r - (MxRelease dbConnObject)
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- 7 G! L' @5 \7 P7 h- |6 R# {
- G' a) G$ i a; E- ; I5 {6 M* s2 d) D
- 关闭ADO RecordSet对象并将内存释放出来- \# Q9 b8 {" l2 ]4 O( o7 ?
- 2 m/ H3 |$ Z, E) G, J1 q0 p
- (defun DbCloseRecordset (rsObject); N3 B* Q8 T' ^8 B
- (vlax-Invoke-Method rsObject "Close")
1 |+ q/ `, H2 N) H, y/ t - (MxRelease rsObject)
! A8 _) P: u! T! \( p1 t( O+ } - ), I8 @. S2 [, s) q4 |+ M
- 4 e" v' A" F/ b
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8 m- S7 g4 o; S2 K. A$ d3 H- 布尔测试RecordSet 是否为 Closed (T 或 nil)
7 C* C5 F) t9 o$ `3 Z, H
7 W4 W3 F* D; z- (defun DbRsIsClosed (rsObject)8 ~1 H6 q! v1 j" Z+ w
- (= adok-adStateClosed (vlax-Get-Property rsObject "State"))7 v, J5 D9 ^5 @) \0 n, o8 e: k7 N
- )# W3 }" L, y/ Z! `, t1 B
/ ~3 M Q4 W+ ?- / z6 h" P: D% r% Q
- 返回一个ADO RecordSet对象中的记录数
- ~8 K" j% n1 ^ - # x$ k- D; Q) ~5 ]: T+ h
- (defun DbRsCount (rsObject)5 l2 _3 j) C6 G/ \, h
- (vlax-Get-Property rsObject "RecordCount")
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- % P; w$ c/ k& c" J1 r
% r( M/ d) a. l+ o+ P v- 返回Field对象中给定字段数的字段名称" k; k' g6 f0 j5 L
- * ^% L% \, p7 B9 \! }
- (defun DbGetFields (fObject fCount / FieldNumber)* N0 r2 }% U8 n: d: @1 N
- (setq FieldNumber -1)
8 X7 b7 P/ q# u5 p
# g+ z6 ^* W4 n/ P3 ?* G7 X' |* s- (while (> fCount (setq FieldNumber (1+ FieldNumber)))
$ @& z& J. S2 T2 j2 } - (setq FieldList
9 ], u( T0 O3 x - (cons/ R& U9 h0 u. h* b" }/ U7 o5 O
- (vlax-Get-Property5 M6 U' I2 J. p4 y
- (DbRsFieldItem FieldsObject FieldNumber) "Name"
, l) W; y- I t/ F% I - )
; w8 x; \9 [; @4 O+ @: c - FieldList
% @7 j7 q& H5 K4 J& p4 \) @ - ) C s3 B; \" z' ? q; ?: K
- ); setq
. G0 c* e) p, J - ); end while' b$ M4 o8 u1 _" U- X( p
- ); defun* F4 G5 A& Q6 q# B3 |# P
- " w: L3 Z. W6 F( l b1 C
" e4 I; t4 k* s/ ^: i- 从RecordSet对象返回ADO Field对象
4 E% S- S. R' ]) o4 Z
, u4 J0 p* l2 E5 {; q5 W- (defun DbRsFields (rsObject)( ]- M" M2 q: |2 `- V9 G
- (vlax-Get-Property rsObject "Fields")
. a: k9 Z8 T7 \. B$ m8 g" b - )/ C2 k! n) R$ L( A( ]
) E" S4 ^8 W3 m! q( ?9 J
0 F# Y5 t5 H: F9 B* ^' R- 返回给定Field对象的字段数量9 m7 Z- P( S; J0 E9 s
u' E$ P' f. ?9 f0 u% p- (defun DbRsFieldCount (fObject)! E8 u6 y: s# w8 u6 A' |
- (vlax-Get-Property fObject "Count")
0 U& e' Y/ R) V% v - )* k& a# W Y, \0 ]
- 9 i: w. y. B+ d
- _! u- l5 Z) [' d3 J
- 获取Field对象的字段名(项)
6 M# X4 i* r4 V; y
~- z7 `; L/ \1 D( r [- (defun DbRsFieldItem (fObject fNumber)
0 y3 A3 f9 r# K+ ?9 L& D - (vlax-Get-Property fObject "Item" fNumber)+ d% l3 U* j* [0 W% r" Q
- )
% l, ?5 d% e5 `, e% R& A
! R$ v# e8 w, \- # r: e/ g. C! |% [" Y2 z) q
- 返回RecordSet对象的RowSet对象$ P9 Q( w$ d2 ^
6 k% Q6 X& g F3 v; {- (defun DbRsGetRows (rsObject)( G8 J/ f- b* w- \
- (vlax-Invoke-Method rsObject "GetRows" adok-adGetRowsRest)
5 l5 K# J/ {2 M4 S* a' h - ); n# m% Y. [3 R- L# P2 M
- : h, b$ L) I! v" O9 P
6 v1 s7 M( R- |4 c4 X, M0 K$ D6 a2 T' t- 应用一个ADO光标类型到给定的RecordSet对象
" D- q6 T) u7 d - / T; K1 ?( } n7 \7 C3 O! J
- (defun DbRsCursorType (rsObject curType)
1 O$ M6 f! v& W9 o0 O7 f# P9 C9 r - (cond
+ Y; |+ z$ L- m - ( (= (strcase curType) "KEYSET")* D6 K3 y; Y) S* S+ G
- (vlax-Put-Property rsObject "CursorType" adok-adOpenKeyset)
1 O1 n2 B2 g! B3 { - ). o. o$ w5 B, L+ W+ u) b
- ( (= (strcase curType) "DYNAMIC")/ C, s! W0 G c& y% A. m
- (vlax-Put-Property rsObject "CursorType" adok-adOpenDynamic)( X# W' {# L# ]6 ~. z
- )2 h: @1 q4 o1 z0 X! k9 v
- )+ f& H) S' b0 B
- ). z6 O# o- K: z' s1 H" v* X
- ) L2 |' R; A9 M+ j
) Q7 }0 Z6 f" e7 b5 x3 ~8 t- 应用一个ADO LOCK(锁定)类型到给定的RecordSet对象
5 t9 L. V" M1 s8 Y7 X
0 r1 f' E6 P5 x( f- (defun DbRsLockType (rsObject lockType)# n: L7 z3 @+ m" p( f1 B
- (cond8 ]/ O" _/ S; w9 L( D" J
- ( (= (strcase lockType) "OPTIMISTIC")
! k* _0 u6 m6 u; p$ \% q - (vlax-Put-Property rsObject "LockType" adok-adLockOptimistic)& S" A \2 y" s* J; A: V) z! @
- )0 u0 G6 ~5 t& H6 ^: ? o
- ( (= (strcase lockType) "BATCHOPTIMISTIC")& Y% X4 L6 H* D/ q
- (vlax-Put-Property rsObject "LockType" adok-adLockBatchOptimistic)
! V( x. P$ K+ ~9 _; q - )
. @' r* u& b, X' c - ( (= (strcase lockType) "READONLY")7 C" |2 ^8 o* l
- (vlax-Put-Property rsObject "LockType" adok-adLockReadOnly)- a: b/ t, _, t# `
- )0 \8 _) l4 s! \" u+ ?/ j
- )8 U( ?& Y" R6 \ J
- )
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; ?/ ?$ S. X3 r @0 x/ J( F3 b- 4 P. v: e: n# t
- 创建并返回ADO Connection对象! H% F! U- E; M) R; L! C
- & g2 n: e7 k) @( ^( o
- (defun DbConnection ()
$ e, d! f: j5 S3 V$ C# B - (vlax-Create-Object "ADODB.Connection")0 W$ \3 E1 c7 J& ]% \4 `
- )& c/ G; w n N& Z3 X
4 G1 c! q) e Q5 H
( Q* Q7 Z$ K! A2 d5 r- 创建并返回ADO RecordSet对象
9 {. ]8 T/ u' g0 m - * T0 r( e9 n, R& C
- (defun DbRecordSet () }1 o1 _( v3 e3 u( q9 D) h$ B( g- P
- (vlax-Create-Object "ADODB.RecordSet")
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" k8 h& ~5 X; }. `8 |8 S8 s+ j# w1 x
& s1 u* y/ V% j- 将所有出错收集到一个点对形式("name" . "value")的列表中的函数
3 M& ^. F8 `# H8 \4 l- Z6 ]
# T/ I% W( T. m; L* t3 v- (defun ErrorProcessor
% d+ e$ N+ w9 N5 J7 _ - (VLErrorObject ConnectionObject / ErrorsObject
$ E" N1 K: u$ {0 l: I& U - ErrorObject ErrorCount ErrorNumber ErrorList
1 L% H; y0 ^% s7 d9 z - ErrorValue
+ }# ~: h& ?% }! B8 j1 ~ - )
( p+ {! N2 }! M9 s
+ N; _4 H4 q: b5 H+ v; v- ;; 每一步获取Visual LISP的出错信息
; {5 M9 r# O d3 ^5 O* x9 a5 H
* s. B. ^. _+ X9 `" J1 S- (setq ReturnList
, s" C' ^, Y$ ?5 `" t- y. E) s4 [ - (list, V# I4 K- Y& S3 ~
- (list$ Z) o4 }' a& a7 x
- (cons "Visual LISP message"- n: l7 l2 _/ c1 k% S, w
- (vl-Catch-All-Error-Message VLErrorObject)8 T9 S! K9 N5 y' m
- )+ E; i+ ~/ h1 S- d- w" G
- ), V/ X3 b# U! L: ]( |# k
- )
( \/ O8 {4 B1 n1 w1 i) @- f - ;; 获取ADO出错对象及数量
% Q$ t# c$ i! B4 Y% q* F8 e - 4 k- }9 x, i' l( z) }% M; {
- ErrorObject(vlax-Create-object "ADODB.Error")
4 k" b1 i2 [5 \* o. Z! Y! y" v' \ - ErrorsObject(vlax-Get-Property ConnectionObject "Errors")
- b3 {$ P3 `1 P2 V! T# q - ErrorCount (vlax-Get-Property ErrorsObject "Count")
}' y( ?/ w7 F9 U - ErrorNumber -1) \+ i4 f- G6 p* b$ D, {! g
- ). U: V% ? F* X% g Q
- ' t/ ?0 S* R" ^2 k
- ;; 循环所有ADO错误 ...& w6 g; G) q: v* W
- (while (< (setq ErrorNumber (1+ ErrorNumber)) ErrorCount)
! O/ K% g. r4 V% P6 @! F
' ^" R+ ^* ?6 v1 l D7 p- ;; 获取当前出错的出错对象
' C+ P8 q7 o, R3 }( m! T/ N$ c - (setq ErrorObject (vlax-Get-Property ErrorsObject "Item"
2 j! z$ P& Q3 D - ErrorNumber)& g: o' E+ p; S
- ErrorList nil ;; 清除该出错的列表项
. p% H8 x$ V% E/ m- g; r$ d - )
1 a8 I7 N0 ~4 K
# |5 j. c* y5 f- n8 r- ;; 循环该出错的所有可能的出错项
7 Y [: Y( Y1 \0 W4 ?' L - (foreach ErrorProperty# ^( ~% i9 D/ G- Z9 z) \% w
- '("Description" "HelpContext" "HelpFile": X5 P, L9 z( D: Y; K$ _5 o
- "NativeError" "Number" "SQLState" "Source"
- r% |8 Z- E3 M; W( j. t* i - )
7 d( l: T2 J2 ~ - ;; 获取当前项的值。如果为数字 ...( H8 L1 j6 t: b
- (if
7 w/ e5 V3 t3 I) w2 v8 B# n - (numberp0 s9 k& R: P6 z0 C
- (setq ErrorValue
, G) ^) L6 N" S) E) Y7 I E+ t - (vlax-Get-Property ErrorObject ErrorProperty)
3 H* `0 [$ |" L - ))9 A: s. ?/ s! K4 t6 Z x8 r
- ;; 则将其转换为字符串以便与其它一致2 K4 n: E# s0 d3 ~5 W" [$ B' K
- (setq ErrorValue (itoa ErrorValue)); K. N& i; S4 @# R2 L
- )
+ W# x. R( w9 a/ V& O' | - ;; 同时保存起来1 w' T! z. z* q" V9 J5 `) ?6 Z
- (setq ErrorList (cons (cons ErrorProperty ErrorValue) ErrorList))8 ~" O7 G- Q1 y0 H" c, i, _2 p, w
- ); end foreach
% f# d+ f! e1 d9 D* U - ( P4 \9 I9 ^+ s# ~0 o7 M
- ;; 添加当前出错列表到返回值中( X* h, _8 a; k( d- L
- (setq ReturnList (cons (reverse ErrorList) ReturnList))
2 G/ T6 a% K! ^2 E3 z/ x - ); end while
6 ]6 K l, c4 Y
j+ Y ^- L% V: K; J% d- ;; 将返回值设置为正确的顺序
1 q I, u. A( n; f% G( R: @8 M - (reverse ReturnList), |* s g/ q2 {9 |3 n9 L
8 Y/ ^6 o ?6 B9 x9 b- ); defun
) V" B" o9 V2 p" e# B; `$ n; u - 5 I8 D; y6 q" u$ P) H+ N' r2 L
- 3 @' U( ]6 Q7 |6 E& F0 _, ?
- 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
& E- V; l4 L* c" W$ C1 y/ _3 m - 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' L5 E0 X7 Y9 I! n- L
- 框结束后被调用。
$ J$ w! Z; Y; m" H9 q
- c) q2 k b9 M! S) h- (defun ErrorPrinter (ErrorsList)
0 N- d z+ X( ~- O0 U0 w - (foreach ErrorList ErrorsList. O& ~( ~ T9 k7 X
- (prompt "\n"); j3 [0 W. i4 Z( R
- (foreach ErrorItem ErrorList
3 ~" L6 r3 W/ W& Y - (prompt (strcat (car ErrorItem) "\t\t" (cdr ErrorItem) "\n") )
$ P+ S0 B7 }! f7 s3 n* d- l - )
6 N1 S5 h# [# ^ - )( t! {9 Y- ~9 N0 x& Z' s
- (prin1)1 _- {2 ^# P( q* x0 s8 Z F: x- U
- )9 I3 K& Y( f6 C; }7 k G0 P
- & k7 g' ?/ f i/ Q
- + _7 l, @3 I- p5 h- N
- 以下为使用ADO的完整例子:. r' [5 F X3 D4 S7 x' F& d
, u$ x! B9 X2 K' R! b7 D9 r- ;;;******************************************************************
( c3 H$ @4 d8 @( l8 | - ;;; 从Access数据库文件(dbFile)的表(tblName)中清理掉列(colName)值为给定的) e# s0 `/ Z* a1 c6 K5 Z1 Y: |
- ;;; (value)值的表记录
: y. ^: T3 B- D y1 M* m - ;;;******************************************************************6 L& _ |. i _2 v! G/ [) Y; `
3 Q9 {- @8 a: y/ Q S! J- (defun DbTableDump# U4 p8 Y+ T; X# n
- (dbFile tblName colName value / SQLStatement ConnectString)& v* Q9 C- X; @. x5 h3 H: l
- / v! p7 J) V. V7 M1 i+ q
- (setq ConnectString (DbConnect_MSAccess1 dbFile)6 ]" W# }1 y ?" x: L4 s
- SQLStatement (DbSQLCommand tblName colName value)2 k: s" C: u$ Q8 M6 {+ z1 p
- ); setq( y1 m" C! {$ h7 e" _/ R) [
- (DbQuery ConnectString SQLStatement)# Y. D+ `# l; A; ?
- ); defun
- m- O+ m3 }7 J - 6 |4 T' o T+ Z/ [4 c4 A$ G E
- ;;;******************************************************************) g5 Z0 g. r" z8 f6 d2 F, ?2 U
- ;;;ADO 示例程序+ ]# @6 Q) `" J. m. z0 |( r
- ;;;******************************************************************6 W( v1 g' Q. p, O# @6 l
- ;;; 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
' n9 W; V$ Q# P, D: H - ;;; 变量SQLStatement。8 R8 n# L( z* n+ R
- ;;;8 L4 h! x5 b1 O. Z- w6 W
- ;;; 返回值:7 V* M) I% o# Y: H( K7 K/ }% `
- ;;;
& r. N) |, A0 s; D - ;;; 如果出现任何错误,则返回NIL。
2 V6 w1 }# g+ M. F5 l - ;;;
. ]- @4 P9 u. ]2 I- K- F' |- u - ;;; 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
# R3 q; [$ d: v: d8 i - ;;; 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
9 k! q& h+ y# Z0 p# C$ f - ;;; 列名称顺序相同的子列表。
" t. }9 x3 X9 ~% d4 Z% ] - ;;;# L' P8 D9 n% Y. M( C
- ;;; 如果SQL语句为"delete ..."、"update ..."或"insert ..."则不能返回任何行,
{( B; e7 d: o+ {( A5 h - ;;; 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。
! ?. n& g2 }3 }! r9 \0 ? - ;;;******************************************************************
4 n3 D( a$ J0 X; |) V/ P2 N - - F( H1 X9 X" @; U0 B( H
- (defun DbQuery
7 v: A. {) j1 l) T: B: i - (ConnectString SQLStatement L& D, ?( {; p$ N& F" T
- / ConnectionObject RecordSetObject FieldsObject FieldNumber
) R/ a# Y- K6 G' l$ c$ u- } - FieldCount FieldList RecordsAffected TempObject ReturnValue
( f# J+ \( k- f$ O: k - )" y/ j1 j/ D1 h4 D) k6 a
- e/ N6 h( R# |# X6 h9 z" a5 Y" _
- ;; 创建ADO连接对象' R: w4 z# E" I. D: d" j7 O
+ @4 X" Q# }4 Y( D- u. d( R" s- (setq ConnectionObject (DbConnection))
. b+ x" I& s' m d2 {' x( A9 M2 u- _ - 9 d3 R$ s5 B/ b" L1 k d
- ;; 试图打开连接,如果出错 .../ ?* n' t8 `0 N2 x* I* g5 d" L
- , j. N; d X' \: y/ w. k
- (if (vl-Catch-All-Error-p( ?& \, b- L) c9 [+ |" c
- (setq TempObject4 H9 C: Z F3 _! q4 j- u6 h
- (vl-Catch-All-Apply5 [% y) a% m+ N8 j( L$ e# i
- 'vlax-Invoke-Method
2 N% {$ _' n. F - - R9 B, e9 Y8 Q( }8 k1 O
- ;; 如果在ConnectString中已经包含了"admin"用户ID和""密码,则这
; K% L3 \0 _8 q3 l0 F N - ;; 两个参数可以不需要。
9 F- X9 P: h. N/ k) E
) b- K# O, o& g8 l( C- (list0 j* x* V- e m- \: E/ O
- ConnectionObject
b9 N& I4 A/ x: y - "Open"
* V- V" O, w1 } w. s - ConnectString1 M6 A. k! o( V: n9 J: X5 D: [& P
- "admin" ""' A$ \( a3 u1 d2 }4 o
- adok-adConnectUnspecified" M% \: Y9 e! h) |) W* p, U4 b! _
- )
0 A+ q! H5 l( |6 g - ); vl-Catch-All-Apply) {! K$ E& i# w0 R
- ); setq/ q+ M2 n. ]# n$ z; t) ~; O# F) _6 \
- ); vl-Catch-All-Error-p$ M' I6 n/ D. n
- 1 K# J7 N. ^) f) I8 x& J+ {
- ;; 则显示出错信息
' V( p8 Q6 A4 ?3 H
/ P7 [% v! O0 `, }) g- ?- (ErrorPrinter (ErrorProcessor TempObject ConnectionObject))
( Z( `" n' I9 K' Y6 C7 u - ' U: o( Z; Z% F" k4 b6 d& ?
- ;; 打开连接开始处理 ... X. Q0 d/ C' a; j- P' m
- # o$ l; c M7 Q+ r+ q% ~
- (progn
, m: ?: k M" h8 O, U" J
" @/ x5 L2 t- m, J6 W- ;; 创建ADO Recordset并设置光标和锁定类型
' B$ F+ d8 C; E: @
4 V3 v8 G% g8 ^# |5 R t* q; x& X p- (setq RecordSetObject (DbRecordSet))% Y! Y" u( X$ \5 I% b
- (DbRsCursorType RecordSetObject "keyset")
3 H/ {, l' |9 A$ O1 M! }6 o. a - (DbRsLockType RecordSetObject "optimistic")
# H0 k2 z% a% c- G - & e# o8 t* V5 P' K9 ], [) e
- ;; 打开recordset如果出错 ...
( `; ] z7 i- l' F - 2 ^; h0 ~9 w+ c' O
- (if (vl-Catch-All-Error-p
}8 O+ }. C' ~' ]1 E- m - (setq TempObject' c1 d& G$ K3 j% Z
- (vl-Catch-All-Apply. H6 E1 b: \% l
- 'vlax-Invoke-Method2 B- v p2 k/ P% R9 N9 o
- (list RecordSetObject "Open" SQLStatement' y, Z4 v, g9 ^8 k
- ConnectionObject nil nil adok-adCmdText: x+ [ K) j" l0 n4 [
- ); i# b+ A$ i( y& {5 L! r
- )
( |8 a# ~. q( ] - )6 U5 d: E+ @7 e3 e* ^& H: ]
- )% _! T/ M4 p/ ]) c6 `* U' u
- ;; 则显示出错信息
1 F v7 k4 U8 i! I& D0 X: _ - (progn8 r! T S7 [% _8 [" I
- (ErrorPrinter (ErrorProcessor TempObject ConnectionObject))% d, [# ^3 S0 h6 D+ I, O& d
- )
^: O- l8 G4 c
: B3 U2 M* Y6 w- ;; 没有出错。如果recordset被关闭 ...- ]' u' @2 ~2 }- r
- + M7 y4 N- F1 O- O2 Q) c
- (if (DbRsIsClosed RecordSetObject)+ u( u+ m2 H2 j: Q
) ]" f. U3 ]4 Q) T- ;; 则SQL语句为"delete ..."或"insert ..."或"update ...",7 E/ m* |; b& B) @: e k. f1 f
- ;; 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
# z) L1 v' I5 ^6 X) k7 P3 C - ;; 怎样写。现在只有把返回值设为T来表示已经处理了。
/ `1 ]/ H2 t/ o1 e7 I! u* p# N3 h - ( D$ f! z& ]( q) h( L. w
- (progn4 E! H7 k/ u8 p6 p0 j, m
- (setq ReturnValue T)4 ^ D2 i- X. [( y0 g, O
- & \/ b- [6 Q1 _- i# j/ U& a
- ;; 同时关闭recordset,这时已完成。
1 c' p8 { C) [* [1 X - (MxRelease RecordSetObject)
2 R5 w8 q$ h8 x! u - )
3 D3 H/ U. Y; s
( K) j5 k. M' I- ;; recordset打开,SQL 语句为"select ..."。
7 M) N; J' c _5 t+ a: q; T- P - 4 G1 m, S" r1 u; i; T; D
- (progn
, y2 C F0 y9 b% c - 0 }* h1 Y" c, c9 o! j- {
- ;; 获取Fields集合,它包含选定列的名称和属性。
8 r8 b; w. U5 I6 H) x N: I3 z
) b6 L `) [$ S" t- (setq FieldsObject (DbRsFields RecordSetObject) ;; 将字段作为对象
5 _; q( v. ^* F8 y( e1 h - FieldCount (DbRsFieldCount FieldsObject) ;; 取得列的数量
" ?7 b9 T# a( F Q: c' m - FieldList(DbGetFields FieldsObject FieldCount);; 取得列表中所有列的名称5 P$ H) c2 o* b; d- \
- ReturnValue (list (reverse FieldList))1 H) V4 V; K$ O
- ); setq1 `4 U5 ~! x* ?# x3 O
y- S6 ^( j" x& T7 L- ;; 如果找到任何行 ...: P3 T& m' F* @& b6 K
- - F- Q$ }+ D/ x! B4 P/ n! h
- (if (< 0 (DbRsCount RecordSetObject))
5 R8 x: J- C; c
+ x, G" U# d% P+ O9 E& G" e/ J2 h- ;; 我们来处理最棘手的问题!创建最后结果的列表 ...
/ [1 l+ A7 ~6 I A6 W$ `+ }# R2 d K
- m+ @4 w/ ^% L! \1 b1 m- (setq
: m4 b# O: L1 d1 v; N - ReturnValue
7 m# e, @( O# ^$ q H. w- N% J1 h - 6 ~1 `. o& P* E
- ;; 添加行列表到字段列表中。
9 ]' e: s; N3 x+ z' ~0 N: t
, n' b5 R9 f- }8 E- (append (list (reverse FieldList))7 l; x' C7 g1 G" M
2 B ~1 @" H- N6 l% a9 n- ;; 使用了Douglas Wilson一流的列表转换代码
0 y9 x2 f& H0 Z# u I - ;; 来创建行列表,因为GetRows返回的项为列顺序: }% S: x0 L% b/ n' w2 L
% X1 E6 O1 j# y- (apply 'mapcar
$ B5 k+ }7 ?; @! Y) ] - (cons
' i5 A+ R8 R& }4 S/ U1 I3 C5 C - 'list5 ] U3 ? p/ U$ X" _1 c
2 _# v/ l' D" |6 W- ;; 设置转换变体列表的列表到AutoLISP标准
9 f9 i; H3 t, P* v - ;; 的项目列表的列表。
# u) M# x9 I1 R* I1 H0 c
' G% V+ z& m7 J- (mapcar
% T/ v& H. m% L$ u - '(lambda (InputList). N0 L! ^: {! G) Y+ V0 W6 @
- (mapcar '(lambda (Item)
& M) ^. X* n2 R - (DBL_variant-value Item)
# o5 Y8 z; j. O% z4 k - )
) G6 E. B# S# \1 U# l! ^9 M - InputList
% w7 D9 E1 e# ~, C8 h# ?& r: t - )+ T& V3 N2 A: Y
- )5 r' W: G0 x( r* [
- ;; 取得行,将其从变体转换安全数组再到列表+ n# E1 h' m+ j- F6 X( j
# f. J. t$ y/ v9 B# m8 v- (setq t2 (vlax-SafeArray->list" {2 v% s$ N4 D: C( T' T0 D% U0 j. A
- (vlax-Variant-Value
, Q) n9 j# S0 S* X - (DbRsGetRows RecordSetObject)
9 |6 k `) b3 y3 d: m- W( S - )/ `) w/ t; t8 p( t& U V5 Z
- )
T+ F& s. ?; c" ~1 v - ); setq
# t- k% R1 c: O2 m - ); mapcar7 ~2 M5 W5 A: e3 w, j! }
- ); cons5 ~) G* H. C, A2 O( H0 R
- ); apply
# ^5 d1 {8 S$ ^; w' [! n - ); append
2 r" X+ }3 G( v# i( M - ); setq
$ x& |; | e7 { h, c: v - ); endif
/ l. t; y6 [% q& n$ T- ~7 [
% i/ K& i& L% T: h; P; n6 i- ;; 关闭recordset
6 i& y6 n: p' {6 P& d, P/ B - (DbCloseRecordset RecordSetObject)
9 s6 D/ B! [1 v+ {( @
$ ?, ^3 g+ {% ~6 |- F2 U2 _- ); progn
5 g1 C. C2 s. g8 ` - ); endif# l4 q$ {: v: Q
- ); endif6 P( T5 ]) `) g5 x: \( C
. R( W3 v/ N% A6 l5 q- ;; 关闭connection0 f9 y* S, r8 `1 z
- (DbCloseConnection ConnectionObject). G% x. g4 F( N& P. n
- 1 e1 p8 N+ Z! o! S Q2 t/ y% ~9 y
- ); progn3 s7 p( y6 t% v( P0 p# \
- ); endif1 ^0 R0 ?7 ]# i0 \2 N0 } H
- * n1 |* `2 d& o3 ^3 v/ g
- ;; 返回值
0 A/ V( G1 v6 N" g - ReturnValue+ i5 V% V! w) f" ]5 r6 L3 X. s) ?: B
- ! _' W/ h$ p1 \& c- J2 f; n
- ); defun
复制代码 |