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。4 y6 X& p# b: H: I! K+ d$ ^ N: b7 h
5 R( o& @- z, v, a: x* f- Visual LISP中使用ADO接口与MS-Access相连接5 b1 K$ O. P* B2 Y
- 在Visual LISP中使用Microsoft ActiveX Data Objects (ADO)接口与MS-Access和7 h# l: \9 u8 Q( m+ ?6 e9 g
- SQL Server相连接的例子。5 n- B; q+ P o% J
- 8 s+ g$ a1 m( q' b! Y8 E
- 通过类型库初始化ADO接口方法：
" M- r: \* {/ z! O' w* I - 4 h8 n; `7 G0 O" j* |8 J1 T o
- (defun DbInitADO ( / ADO_DLLPath)
2 J2 u" L" M" p# J2 H5 m - (if (null adom-Append)( x, ~: p; X& ^! g; D2 s; v9 O
- (progn
' s1 u/ `9 V1 c( K
" ]9 [) M' j% X& m- ;; 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6 M) c- d; T. e5 ?$ h0 f
- ;; 文件夹将会更加合理，可以避免不必要的错误。
/ r; \( W ~( U) @0 D C
* l; V" P% ~( M0 f- _. P- (setq ADO_DLLPath1 q( i0 H5 }. C! ^1 M
- (strcat (getenv "systemdrive")" {$ [' R: K/ A; O/ b1 j) I; Z
- "\\Program Files\\Common Files\\System\\Ado\")5 l- |1 ^$ o- k: y' j; E
- )
3 o9 q& S9 K6 G" r4 A
, }/ m. Z8 v6 y- c0 j1 t$ C& ~- ;; 如果查找到类型库 ...
5 n# q$ a6 `3 U! x" @' T, {
" f, Z5 e' N" m7 m& E- (if (findfile (strcat ADO_DLLPath "msado15.dll"))
; E7 E% s7 C, s Q - , x3 d0 U m) c J: j
- ;; 将其输入
: b; a; d2 x- L; K! o4 |
) w1 z9 x v% B; V9 K) r, o- (vlax-Import-Type-Library
( R! W1 h. W7 {. P) E% ]7 p - :tlb-filename (strcat ADO_DLLPath "msado15.dll")0 ?) q* e6 }1 j$ b
- :methods-prefix"adom-"
4 s5 y8 R# m4 R1 E) n# M. a - roperties-prefix "adop-"& P3 `% q6 h0 k4 M
- :constants-prefix"adok-"
8 ?2 z7 ^& C5 G1 F) o8 v: d - )
6 ~9 M3 k: k9 H- @& ?7 q1 { - ;; 找不到时，则通知操作者
, g5 m. t: V9 @4 h1 r' t - (alert (strcat "不能找到以下文件\n" ADO_DLLPath "msado15.dll"))
9 D' @" Q: R8 d" ~ w. v& O Q0 Y - )
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- )
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- ' n" q4 s( ?( M4 [
- 生成MS-Access 或 MS-SQL Server 数据库的连接字符串, J0 A- p A% ]8 `! A, k
- & d: W) S- [2 G6 Y* J
- ;;;******************************************************************% q( K* i, M: L: F! \* M0 w
- ;;; 使用ODBC(不需要DSN)连接MS-Access数据库$ f7 x) L t; @
- ;;; 示例： (DbConnect_MSAccess1 "d:/dbfiles/products.mdb")
9 I. E" ~" r3 `+ [4 z, ] - ;;;******************************************************************' E L# y _6 F# W! G
- ( v2 d; f% M: y& i# R4 O
- (defun DbConnect_MSAccess1 (dbFile)
: o0 N2 m& ]) a" ]& x) Q - (strcat
. b7 Q$ D0 p/ ~5 U - "Provider=MSDASQL;"- l8 |/ l& e/ j1 }
- "Driver={Microsoft Access Driver (*.mdb)};"4 y& K: {9 l) o8 U9 s
- "DBQ=" dbFile
4 V4 }8 d5 _; Y' B - ). W9 X" y- Z+ V/ E+ C
- )
& I! Z. |& G- o9 Z5 j- t - 4 e- n& W0 S' t& e
- ;;;******************************************************************
% q4 v/ U' z0 ]2 V# H - ;;; 使用JET 3.51连接MS-Access数据库
0 }) p3 Y1 l! | - ;;; 示例： (DbConnect_MSAccess2 "d:/dbfiles/products.mdb")
8 N$ O+ l1 o4 q( @ { - ;;;******************************************************************/ [/ _5 q* i9 W# F1 N
4 o: |( d" ~% Q3 `9 a- (defun DbConnect_MSAccess2 (dbFile)
% C5 l& X0 Q# m% y# W2 i - (strcat
# g! z" E/ t' R/ Y4 q" x - "Provider=Microsoft.Jet.OLEDB.3.51;"; y6 W( J2 X4 K) _# D; B T
- "Data Source=" dbFile& h. X3 m/ K1 c& k) X4 t: S
- )
1 P3 A* j: r: O- a9 \% G - )
9 l9 g: ?% q: h1 E, P - 0 h/ \' [3 z8 {4 U
- ;;;******************************************************************
- X* \7 P/ d* M- v - ;;; 使用ODBC(不需要DSN)连接MS-SQL数据库
. f2 h- P0 t. ?. v& ?" x$ c$ p - ;;; 示例： (DbConnect_MSSQL1 "SQLSERVER1" "products" "sa" "")- y3 U- }. w7 H- w1 G3 d
- ;;;******************************************************************
' _# {. Y3 V$ [1 B) ]4 t - * {) o% @! g/ Q/ E$ e4 M/ v+ h5 }
- (defun DbConnect_MSSQL1 (dbServer dbName dbUser dbPassword)( }6 z) Q: V* A, X$ h
- (strcat
6 P. B( k) E. c - "Provider=SQLOLEDB;"
- O6 T5 R, Y9 B* X4 Y - "Driver={SQL Server};"9 ?8 o5 H- M3 w- ~/ [1 n3 D
- "Server=" dbServer ";": b& t+ S5 \4 L" ^
- "Database=" dbName ";"
5 r* k' N/ p; c- Q' h - "UID=" dbUser ";". O) N! W) h( F8 I- s3 Q
- "PWD=" dbPassword
# w$ N: U% Y# [3 v, h4 ~0 `2 I% y: a - )2 m5 O4 M% t: O0 L
- )
% x% a! w* W4 g+ V- p8 `
" _6 ^3 C6 m0 g, Y3 [- ;;;******************************************************************7 A$ q, q; J$ B+ A3 i
- ;;; 使用ODBC连接MS-SQL数据库w/o
; N% ~% c# @* p& ^; L5 ^2 N- r( ]" V - ;;; Ex. (DbConnect_MSSQL2 "SQLSERVER2" "pr_catalog1" "sa" "")
8 W8 k# z; g: N' y/ D8 s/ {4 c7 | - ;;;******************************************************************
- w( H1 o5 P8 V/ A# E9 l
2 L+ v, o' ^6 G3 Z. K- (defun DbConnect_MSSQL2 (dbServer dbCatalog dbUser dbPassword)
0 C( @$ x& S" J+ V8 C: G7 `8 _ - (strcat, {5 m% Y. ~2 O" o7 v
- "Provider=SQLOLEDB;"0 A& m. j. q% e) R/ o3 B
- "Data Source=" dbServer ";". H( s9 b' p! G- ^# J
- "Initial Catalog=" dbCatalog ";"( V0 ^% E7 H$ [0 q
- "User ID=" dbUser ";"
; B3 J, d8 L2 D7 n/ j - "Password=" dbPassword
1 `4 y# S& H- H; p$ M - )6 ?1 U# X; k ~4 U9 v; _: F$ U2 e( c
- ), G6 a9 F, k0 }* R5 _
- ; M" S6 t, _' V) C4 u! I4 h
: a% l$ w+ k; T- 生成适合不同情况的SQL字符串1 Y$ S7 ~& J7 ~* l/ E5 |8 p4 y
- (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
3 z& \" ?# E% o - 当的值中来取得正确的查询语法5 P w0 s: v4 [& [9 Y, V
6 Q2 o5 ?' A! _$ ^* ]3 L- (defun DbSQLCommand (tblName colName Value)1 N, }* J7 j$ B% V. @ j
- (cond) r, O$ U- K& u. x! F
- ( (and colName value (= (type value) 'STR))
. P, Y+ i/ {8 y! o- M - (strcat "SELECT * FROM " tblName " WHERE " colName " = '" Value "'")
' p+ ~# S/ F6 o: q, G - )
! D8 l3 y8 J7 z( S5 y8 E% u - ( (and colName value (= (type value) 'INT))
6 s4 Z- M5 D8 g4 ^) w# B! p7 n - (strcat "SELECT * FROM " tblName " WHERE " colName " = " (itoa
" r, F1 i- ?' P& i7 e! { - Value) )
T s5 R* F: p - )
! B+ d/ V$ s4 P2 |4 A& X - ( (and colName value (= (type value) 'REAL))
. R+ d. Z# Z. }$ f( `0 w: C* m - (strcat "SELECT * FROM " tblName " WHERE " colName " = " (itoa (fix' g/ [8 B1 {9 `' L; ~0 ^
- Value)) )
& ?% X- t% B/ H# m: \( m - )
* W' W1 W m5 V! z1 E& l' t - ( T (strcat "SELECT * FROM " tblName ) )
! J! U6 f0 t! \9 H4 |/ p - ); cond
. E- j8 x. ] Y0 D3 ?' ] - )8 y" S+ G4 v' Y8 [4 [
- 4 `* K& E# S5 n1 S" E6 r- E
- , c& ^# g: W1 r( { {
- 从内存中释放VLA对象8 ?# G7 H @( L' j& C' o
- , B0 Z- ~+ b; _0 C! o* U: c) X- }
- (defun MxRelease (xObject)
6 S2 M# N4 v; m- z. G5 R8 ] - (if (not (vlax-object-release-p xObject))
6 L8 W2 G+ e6 B4 V1 M$ b' f - (vlax-Release-Object xObject)$ z0 M) J! q/ A
- )
4 G8 J2 W% N4 p# E' N4 P+ k - )
9 B) t% l5 G: j/ B U( H" ? - - n5 h1 O7 A! X, F9 |
- 关闭ADO Connection 对象并将内存释放出来
8 B' Q# X( H4 \4 Q, L
* A5 v5 g5 f( Y) `& j8 r, r9 T- (defun DbCloseConnection (dbConnObject)3 j" {7 R# F( i( ^- L! W2 n0 R
- (vlax-Invoke-Method dbConnObject "Close"); U' I& C. I- q7 \. [" O
- (MxRelease dbConnObject)' o: F$ j% p6 ?- ?
- )
5 H: j7 h, \' \ m4 y B - % F, t6 c2 O& a: ]7 a3 g: y
- % n+ d! R( y: u# V2 K( B) n/ n; }
- # L+ P0 i4 X3 ?7 ?
- 关闭ADO RecordSet对象并将内存释放出来
8 W3 I m# Q, p
x0 U/ \9 N) d- ]0 j- (defun DbCloseRecordset (rsObject)$ q. p8 P5 B1 M1 D) O& t
- (vlax-Invoke-Method rsObject "Close")
/ c. u, W" ]1 C8 L8 b' f$ R - (MxRelease rsObject)1 T$ ?% M% z7 d" R$ F9 j# }
- )
* r$ A2 K. E6 M* Z3 B% {; k1 o0 x - 4 i7 v. |7 M! Y# M, l' e; I
- ! S/ a# H" F A* c& i, m% j
3 z) q- i* W; }1 ?7 z" S' _) N+ I- 布尔测试RecordSet 是否为 Closed (T 或 nil)0 W m- A) K K" C- Q
% y) L! _: }3 K9 a- d( }7 [$ E6 s% @- (defun DbRsIsClosed (rsObject)
! K2 {3 X4 m% c% v - (= adok-adStateClosed (vlax-Get-Property rsObject "State"))7 x F/ M% i& Q1 D3 ?
- )* K6 U/ B0 ?' |
- . w# h, V! g! c0 K1 L' t8 Q3 f; h
( ?/ j0 a2 q; p. R+ ]+ c: [8 z* U0 Y# b- 返回一个ADO RecordSet对象中的记录数
1 [* I1 V3 X2 o. \
1 ]! ]% b: S, p$ @9 q# I4 z1 c- (defun DbRsCount (rsObject)
* R& B2 z- P8 N - (vlax-Get-Property rsObject "RecordCount") I" l( Z( s* O% l' C0 ?: N* l, u
- )8 S" m0 W: L, B) a
- [$ c- y7 R9 g. w0 [
) l! {6 b7 P1 ^+ ?$ x- ^' Y- 返回Field对象中给定字段数的字段名称* @3 U% n) c7 f" @# J+ a) i
- 1 C( G, o1 l ?, O7 b+ E
- (defun DbGetFields (fObject fCount / FieldNumber)4 F7 `2 l$ m* _; O
- (setq FieldNumber -1)
( }2 U) `) R8 a0 Y9 Q
: b, q7 V+ @$ Q! q+ ]/ N/ j- (while (> fCount (setq FieldNumber (1+ FieldNumber)))* ?7 ^& ~% ?* N7 ~! i+ d
- (setq FieldList7 j" V3 t5 Z, s$ k
- (cons
1 ]% |4 Z0 Q3 r6 |9 a% T, \6 M - (vlax-Get-Property
5 b- ^# P4 N& C% h0 p% q4 a - (DbRsFieldItem FieldsObject FieldNumber) "Name"
$ e! f& J0 D& j3 y) S# p - )! B/ ^/ m- p4 M, ?7 y* V2 ]
- FieldList, d5 E7 j' D; [6 h* F
- )* j! c1 K8 W4 k& V D8 q% c
- ); setq
; o: ?! p0 V0 ^. P' M/ ?- t - ); end while
& i! I6 R4 O5 O7 q- ? - ); defun- k* L. e8 m1 o
- + q* |( I w( L4 Z4 ^! n
- 2 ~7 t% y7 [- _ ?8 ~
- 从RecordSet对象返回ADO Field对象7 k7 H h3 R# b; |; a' r. _
- z% s3 e n/ y- (defun DbRsFields (rsObject)9 c* r& j0 X; F$ s0 |. [- q0 I& T
- (vlax-Get-Property rsObject "Fields")& q ~$ G% z9 M& J1 s9 @
- )8 X, l2 q2 `; r1 ]" J
. T. d" H/ S- ]. q, ]/ Z- - L& q, _0 v' r8 J& L) r
- 返回给定Field对象的字段数量: T+ J' @: n+ y/ t9 G! ?
- - ]! m7 T3 v$ N5 X/ n, f: [: T v
- (defun DbRsFieldCount (fObject)
4 s; }8 G+ l! n7 |; v - (vlax-Get-Property fObject "Count")3 B9 `% l$ C+ j$ I/ |
- )
) S0 j. h: p# d1 O; u' A - 7 w% L2 G& X6 m4 `1 f2 }6 k( B: j
- $ y0 h1 D* O/ R4 g
- 获取Field对象的字段名(项)
9 q" d6 ~- O& A! l( q/ d7 _
6 B# v0 k4 I- I2 U6 u, k- (defun DbRsFieldItem (fObject fNumber)
: `( A( o" |5 v# ^* s$ ?( g - (vlax-Get-Property fObject "Item" fNumber)
& W* l. z' X7 l/ q, f - )
% c5 s5 T% M+ B) d5 V1 M- U
' T( b8 B- t, \6 e# I" O% F- , i3 B- \0 h7 b
- 返回RecordSet对象的RowSet对象
+ c% G- V# v/ Y+ F' J( v N
) N: ^. C4 n' N6 ]' _! i- (defun DbRsGetRows (rsObject)% m' E9 G# R6 Q# Z
- (vlax-Invoke-Method rsObject "GetRows" adok-adGetRowsRest)* X1 w+ W( I( o
- )
6 g4 I7 G) w0 S" S
- g0 h }/ s7 z: I" p, ], ?
. c. j% C+ K4 H- 应用一个ADO光标类型到给定的RecordSet对象) Z D4 d* V/ I0 [- ]
- 2 B/ L1 f+ r& w9 m8 }0 b7 |, L$ p
- (defun DbRsCursorType (rsObject curType)
2 P0 `2 k/ ?& T( _6 s5 h - (cond5 }9 N+ F8 {+ i( v
- ( (= (strcase curType) "KEYSET")! N0 y- V/ s3 j
- (vlax-Put-Property rsObject "CursorType" adok-adOpenKeyset)7 s% d! \2 z8 g2 c
- )- `8 K' |; T: }
- ( (= (strcase curType) "DYNAMIC")
, F1 J, {) Z5 R% n9 s7 M& N - (vlax-Put-Property rsObject "CursorType" adok-adOpenDynamic)
* a" M* i! U) J% n - )
" V. v' m) O- w0 F - )) m( p& }& q3 c# v- w; A
- )
8 o* e% _+ I" m% Q
2 t H" s* z, W* p" n% ?3 x- , O2 w, Y+ x( K" ~+ S# X
- 应用一个ADO LOCK(锁定)类型到给定的RecordSet对象
& `" Y. L0 u( r# ^
0 x: e9 z v% z' N- (defun DbRsLockType (rsObject lockType)
3 N' A2 f' X9 [) I4 J+ F - (cond' j0 c8 V0 F8 L, o
- ( (= (strcase lockType) "OPTIMISTIC")- S8 |, O8 B) x% W3 \( e+ y) X
- (vlax-Put-Property rsObject "LockType" adok-adLockOptimistic)
# b$ C& b. {; ?! C - )( F! M7 b9 \" j
- ( (= (strcase lockType) "BATCHOPTIMISTIC")' ?+ }- P" X/ N; L$ |6 M5 g& G
- (vlax-Put-Property rsObject "LockType" adok-adLockBatchOptimistic)2 O9 a. ?. d+ H0 p3 `
- )6 P$ {1 D j: o4 U' n) q, L
- ( (= (strcase lockType) "READONLY")+ O0 M6 u% l! }9 g/ c' F R+ X2 [
- (vlax-Put-Property rsObject "LockType" adok-adLockReadOnly)0 k/ q3 x8 Q* q4 p
- )
8 a4 W" I! y# l1 t& x8 T - )7 _1 B1 O! S+ \) O0 V0 W9 g
- )3 M2 m" M( R- Q+ u* {0 o
" \) V/ v9 ]2 d! W- E6 w3 M- 0 t8 G2 @' }" l. c7 y- ]
- 创建并返回ADO Connection对象
, y( N; V' c$ l0 E7 m2 E, b, B - 0 e S/ f6 f8 s& y% z: `" T
- (defun DbConnection ()& P g8 h+ E6 ?% i( ^$ O
- (vlax-Create-Object "ADODB.Connection")$ v5 }7 ?! M2 _6 {4 Z
- ); m: |4 h s1 x3 P* {
; c7 @0 @5 ]/ [+ D; @! w: e- 5 O" T$ V6 P$ F4 Q4 u
- 创建并返回ADO RecordSet对象
0 [4 K( f' A) b3 E- z- l+ ^. W
( I; b3 N# |4 S. s5 c- (defun DbRecordSet (), g7 J! A! u" e, y! g4 n. J
- (vlax-Create-Object "ADODB.RecordSet") O& u `7 M1 R5 E! [- G. h4 v$ S
- )5 G% D- E8 e6 s1 E' Z! n
- " T& o* q2 R2 h5 ]- d+ \
- ) s& ^! P2 b3 c7 D/ ~
- 将所有出错收集到一个点对形式("name" . "value")的列表中的函数2 x- X Y' H$ h8 k+ F8 d: R" s* E5 |
- 1 r* b, B/ h4 t {
- (defun ErrorProcessor
7 s$ v# _6 {6 [9 ?" c- } - (VLErrorObject ConnectionObject / ErrorsObject
% r8 J3 o" k0 c8 T - ErrorObject ErrorCount ErrorNumber ErrorList5 u0 w. z: n( Z' _% K
- ErrorValue' |4 J6 p# o M) E6 [2 F
- )
5 @/ E+ {/ M# h# i
4 q6 q$ w0 P! F5 s; c# |2 p- ;; 每一步获取Visual LISP的出错信息
5 r. b ^1 c; g/ M) b" D7 O
, P0 s/ P9 {! @# C5 ^% a- (setq ReturnList
1 s# |" ` ]7 f% B - (list
4 h3 A1 J8 H/ t; O - (list
/ f+ ~+ R* T, f' M5 [" ^4 } Y - (cons "Visual LISP message"0 M; g7 o8 R3 V! k7 P, r
- (vl-Catch-All-Error-Message VLErrorObject)
7 n; n7 I8 S2 n9 q - )* _, j1 ?/ @! X, N- E6 c9 p
- )
: F1 o* O W" B5 U% { - )* I+ {& r& u- C
- ;; 获取ADO出错对象及数量, N' R& h3 A( |* ]2 Q
- 9 e; r* Z/ f/ Q% J& P" v
- ErrorObject(vlax-Create-object "ADODB.Error")! ^1 W/ T, G( Z/ t
- ErrorsObject(vlax-Get-Property ConnectionObject "Errors")
( J3 V! V, A, r; j* m% K% _ - ErrorCount (vlax-Get-Property ErrorsObject "Count")
( d+ v: }9 m) |) J: g) i9 ` - ErrorNumber -1$ S O* G r5 k+ Q& V3 E/ T
- )
' }% T' G- @ U7 k [+ ]9 O$ S6 c, _
( O) }6 V- h; t5 n- ;; 循环所有ADO错误 ...
# n4 M/ G5 k) M - (while (< (setq ErrorNumber (1+ ErrorNumber)) ErrorCount)/ O4 S v: s, o
- + x7 e# n1 u: U
- ;; 获取当前出错的出错对象' O, s8 v5 s4 @9 m$ m) I% {
- (setq ErrorObject (vlax-Get-Property ErrorsObject "Item"
, ?( g9 e; Q5 @. @7 h ^ - ErrorNumber)
0 } F: d6 v; ~, n6 S3 o+ G - ErrorList nil ;; 清除该出错的列表项
7 ?7 O3 L5 B9 ~/ k$ G, X - )3 {/ F9 Z! r. }- c% b8 d+ V! L% X0 a
- 8 G+ O. a* g! Q7 Z7 H- ]
- ;; 循环该出错的所有可能的出错项! f7 L L& z( z1 d' f- x/ S
- (foreach ErrorProperty r3 z0 Z( ]" Z
- '("Description" "HelpContext" "HelpFile"
d8 n/ z0 \6 q' ~; n4 \/ X/ Q( D - "NativeError" "Number" "SQLState" "Source"* d: ~! X: y, l( V
- ): K8 V5 f$ V6 ~( E+ E
- ;; 获取当前项的值。如果为数字 ...
5 i4 \. |! `+ F: d. A5 M - (if+ d/ v. d+ f1 W9 @, Y- a, n* T
- (numberp! q+ ~8 V+ G5 R) a$ }
- (setq ErrorValue
) A# W' M8 @, ^! V( P# k - (vlax-Get-Property ErrorObject ErrorProperty); z0 X& D* {: y& H& G
- ))
8 }$ c& @( b: ]3 q; }9 z1 l9 E6 c - ;; 则将其转换为字符串以便与其它一致
" }( O. H; B3 D) M - (setq ErrorValue (itoa ErrorValue))% ~) E8 c+ b4 s- `& f s
- )$ t! S5 J& N) M' s6 r
- ;; 同时保存起来
9 L& N6 N3 C% W, Q - (setq ErrorList (cons (cons ErrorProperty ErrorValue) ErrorList))3 t' w" ^, B" C
- ); end foreach
, y9 x7 H, e+ j7 t V - ; J3 @" b/ E: }% _; R
- ;; 添加当前出错列表到返回值中& {- ]& A2 ^( C: ^1 u( S
- (setq ReturnList (cons (reverse ErrorList) ReturnList))
: Y; L& M; U2 c; v( P: r6 y' l - ); end while
8 O. }- T6 ~; E6 f: ?# M" a
* j" V' b( d! k4 }* q, }* q- ;; 将返回值设置为正确的顺序
2 W! L# w. |1 Z( J, @. v - (reverse ReturnList)2 A l k; t! h; p' Q/ W# x
0 L' e9 \ L0 `9 r4 i- ); defun
8 B( n* ?3 }! c5 G- d# k7 k) b
. l# W$ i; P* V/ y) R- & Y$ v+ V& j/ D& _0 N; k1 ~
- 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
. ^. I1 d9 i! M8 ~; x - 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1 ?+ ]- k3 i& \5 R
- 框结束后被调用。
3 E: H+ T6 P: W - ) S( b5 A7 O& [1 C/ f; C5 g
- (defun ErrorPrinter (ErrorsList)7 `: w" A+ v4 ?: X
- (foreach ErrorList ErrorsList
' ^, Y( j5 d7 W; K* |5 N0 ^: i) c - (prompt "\n")
" \! w& t0 ~6 t/ E; s - (foreach ErrorItem ErrorList4 c4 ^! z; X" [9 L, C
- (prompt (strcat (car ErrorItem) "\t\t" (cdr ErrorItem) "\n") )3 ~1 E: @' n* W2 t
- )/ F( b9 I2 q/ ?+ F+ A& e
- )
) u# b1 Y |6 u1 \" [ m7 ^ - (prin1)
' l4 N( e7 x; \" ` - )
4 B9 u: Q m- q* p& l% a - . z% y& B, v/ T. E
2 `' L7 w! K( F4 o# p- 以下为使用ADO的完整例子：& A# Q O! w6 Z# ], K$ m
- 0 y9 H/ J6 Y+ l8 }5 O- Z% r$ ~
- ;;;******************************************************************
$ J8 Y$ L0 u$ p1 K' ^2 G; r( A - ;;; 从Access数据库文件(dbFile)的表(tblName)中清理掉列(colName)值为给定的/ U0 ~: \) X! u; L0 \/ a( j8 b! [
- ;;; (value)值的表记录- B$ ]7 b4 e/ [# b: o; `6 u& y
- ;;;******************************************************************# e/ y$ L0 G9 W, ~
- " ^. w9 X# }) a' N* Z- j0 d* Y8 S
- (defun DbTableDump
9 O( g( j7 r: _7 \3 g. @& s1 N - (dbFile tblName colName value / SQLStatement ConnectString)) G+ m* s& E; `
- ! b0 `2 x+ y9 E, r
- (setq ConnectString (DbConnect_MSAccess1 dbFile)+ j) d+ k0 Q# A+ l2 ]
- SQLStatement (DbSQLCommand tblName colName value)
- I! |5 o Z5 i6 @ - ); setq
7 g" O& z( h6 y, W. b - (DbQuery ConnectString SQLStatement)2 t# t, m* N; l/ f
- ); defun
$ F0 P$ h& }5 b4 u m: Q# j - # e$ k2 T6 F! M9 N! f
- ;;;******************************************************************
' |3 X/ e( w& i. Y3 j - ;;;ADO 示例程序
2 q b0 z( O6 {* K) u" w5 y - ;;;******************************************************************7 r3 n( [ w' E4 P" _
- ;;; 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
8 \- C' ~$ h# F( A5 Y - ;;; 变量SQLStatement。 ^1 C* T- C4 _% Q( d
- ;;;
1 W. L \3 b; \% m - ;;; 返回值:/ Y A3 r. _) Q/ R/ R
- ;;;! y* v4 X R% |" I1 ?$ D) x- N
- ;;; 如果出现任何错误，则返回NIL。
# u u' M4 I1 L* z0 A: h; Y6 R - ;;;
9 j9 ~6 R+ S. s+ ^ N1 i$ b$ T - ;;; 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
4 v; x$ o9 R2 U/ j - ;;; 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' a$ v4 P. j5 z8 G/ }9 k+ ]
- ;;; 列名称顺序相同的子列表。" v: g# Q" B0 ^: q2 z
- ;;;
2 P6 R5 }& M3 X; E* G) O2 K - ;;; 如果SQL语句为"delete ..."、"update ..."或"insert ..."则不能返回任何行，
' ~1 V" }3 H+ g0 v* E. N; ?3 N - ;;; 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。! T, E+ V8 G4 M7 Z" F. G2 p
- ;;;******************************************************************
# A4 W. i3 X `, ^# x( f - ' `5 }' n" t1 g/ j& p4 V
- (defun DbQuery
" E4 S- c9 a: q7 W- w - (ConnectString SQLStatement& Q& x( S0 L+ j2 C* T9 |9 L' c
- / ConnectionObject RecordSetObject FieldsObject FieldNumber
$ Z6 z4 V) G$ M! f - FieldCount FieldList RecordsAffected TempObject ReturnValue
& R( F% H% }6 G- S - )$ m5 v/ M( Z! x( w
+ F/ ]% s% |( i1 U, M- I- ;; 创建ADO连接对象
* }0 v. ?6 h% [: O/ Q$ V - - M- K7 j, x( w" W7 S: O4 s% o( [
- (setq ConnectionObject (DbConnection))
2 K. J6 c4 r- |' a - . _& W5 h) T7 |) k2 U8 J
- ;; 试图打开连接，如果出错 ...
* b! X; M* Q2 Z8 {+ J' ^( \; q f2 g
5 e+ z2 o9 R9 X t" |- (if (vl-Catch-All-Error-p2 P3 q0 Y* o- b2 r+ a$ p+ F; c' g9 e
- (setq TempObject5 K! l) D; `! j2 t, q q8 Q
- (vl-Catch-All-Apply7 t% `% T1 j- ]' c$ \% v
- 'vlax-Invoke-Method
' `' R# g: n4 Y
3 d9 d8 Q: B6 ]- ;; 如果在ConnectString中已经包含了"admin"用户ID和""密码，则这
& ?$ ~! a' h9 {# N" O - ;; 两个参数可以不需要。
7 B- @. v) X7 k* `$ s* R - 2 z& o) S+ p, x
- (list
! T2 f; Q. \2 k% @1 F1 _ - ConnectionObject, N. p* A' |3 ^9 \2 B1 w5 n' n
- "Open"
$ u) k3 `2 d% \& A& a - ConnectString
9 p3 q9 A- m! r - "admin" ""2 d3 Y/ B$ R5 M: F" [
- adok-adConnectUnspecified3 m- y1 j( ?' |
- )# h- t" O' i R1 c$ \
- ); vl-Catch-All-Apply
8 |9 f( t* L# y& \5 F - ); setq* K0 k S6 o, ?7 e2 y
- ); vl-Catch-All-Error-p
+ H4 q$ v7 j8 Y. }: B4 O# c+ C+ n
& U: n& g# b, Z. L3 X5 E1 ?- ;; 则显示出错信息
# _$ E$ J0 k2 |, E! o9 q - 6 B: o9 P: L5 D" L
- (ErrorPrinter (ErrorProcessor TempObject ConnectionObject))2 H8 s: s( V' U- z9 U* G
% I5 I1 m0 V$ i0 t9 v1 B- ;; 打开连接开始处理 ...( r1 ?7 b6 Z w/ B% _5 S" N( W. u* {
- , n5 c6 ~1 Z" r+ X# f8 O; H# b" \
- (progn
* [- y; q1 X+ \2 Q
5 q T' M5 a. F5 z- ;; 创建ADO Recordset并设置光标和锁定类型
+ w7 C: U9 b- e }
7 Q% i' S0 w7 [6 ^) h/ H8 ~- ~- (setq RecordSetObject (DbRecordSet)). s: \! y) ?- Y" w }5 W) G5 E
- (DbRsCursorType RecordSetObject "keyset")
8 L/ Q% t1 `8 H K* \ - (DbRsLockType RecordSetObject "optimistic")" B+ |9 s1 n- o# Y# ?
- 3 Q7 U3 T0 e+ I( ^
- ;; 打开recordset如果出错 ...5 |( f: Z7 v |# Z3 y
- + _0 h0 z/ n8 a: V9 R5 B
- (if (vl-Catch-All-Error-p
( c! C2 z/ G' c3 i' k! i# `7 z - (setq TempObject
8 G7 M3 g) h7 r0 A, u e& g - (vl-Catch-All-Apply( @# {5 p7 k% H+ S: w
- 'vlax-Invoke-Method6 q$ d8 T- C" ^, U/ \
- (list RecordSetObject "Open" SQLStatement0 r4 ]( I; X; q: @' K
- ConnectionObject nil nil adok-adCmdText
) k& I, q3 s6 I0 `, A% h - )) }$ k: g$ i* u2 ?9 O% d
- )
! e5 Y! ?' Z' A% z5 E( V - )( e4 `0 ]" w' a# n. I5 v5 @5 ~
- )" z! f( E; T& n* u
- ;; 则显示出错信息/ F: U$ z( e! P6 h
- (progn- g& c8 S, U6 @) ?- t7 G
- (ErrorPrinter (ErrorProcessor TempObject ConnectionObject))! L8 R/ U: T N: r( w
- )
6 b3 J( k- H" o, L - ! y* ~) }- d1 ?! O2 l/ t
- ;; 没有出错。如果recordset被关闭 ...
9 L6 _) P0 w2 i2 D% x B - . A. X# Z0 g$ Z: @. }- S4 U/ U
- (if (DbRsIsClosed RecordSetObject)
1 E( C0 I, d' p% p* h: G8 o - & b" G7 ]; p" O; V* R. a7 Z# n
- ;; 则SQL语句为"delete ..."或"insert ..."或"update ..."，
; }8 B V! z6 q - ;; 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$ H9 N/ O( Z9 h: D
- ;; 怎样写。现在只有把返回值设为T来表示已经处理了。
4 h X9 K' v& `4 f% {! F
- n! |- q% u5 Z0 [- (progn
" ^* _. T& N4 P* Q8 n - (setq ReturnValue T)% Q9 G1 ]8 I5 K
- 8 V* [1 t5 t3 i
- ;; 同时关闭recordset，这时已完成。7 G9 q! R$ }* _% {. i
- (MxRelease RecordSetObject)
5 ]* x' _! z/ ~+ v - ), D+ _. Q" I9 w4 c- i# p" f/ x
. e7 n- B! a9 i7 g- N- ;; recordset打开，SQL 语句为"select ..."。
, K9 c6 e+ S( s4 z$ l; `( a
) H- t1 X* c' C' c- (progn
9 ^3 w0 {- I' M+ u. o: q - ) v5 d/ X ^6 A2 {$ H- y$ K
- ;; 获取Fields集合，它包含选定列的名称和属性。
' N# d+ e P7 Q
& T, A0 c( j L! e* ^; e% @% x4 C/ L- (setq FieldsObject (DbRsFields RecordSetObject) ;; 将字段作为对象
# d# q9 g9 M ~ - FieldCount (DbRsFieldCount FieldsObject) ;; 取得列的数量' t+ y2 E2 G9 p3 i
- FieldList(DbGetFields FieldsObject FieldCount);; 取得列表中所有列的名称
6 b% U' @6 k" | q$ V: S0 y - ReturnValue (list (reverse FieldList))3 `6 ~; r$ C- R2 j+ J, m
- ); setq) x3 J) j6 A3 I. V( c% Y- A
- ; U, @! A' @/ {" l W# C$ C4 x
- ;; 如果找到任何行 ...
) Z9 o8 X: H& T6 Y: {! ^+ d0 x
q) R( G" w! s8 y- (if (< 0 (DbRsCount RecordSetObject))
8 z; S4 `, b+ u6 ^: ~9 r9 Q - t4 v Q% J, g# o6 {6 X
- ;; 我们来处理最棘手的问题!创建最后结果的列表 ... [5 ?3 v; @- \5 C \$ S" l+ F
- 3 ]. |# |& J% O7 b, `0 M
- (setq8 ], X4 ^/ h; Y
- ReturnValue3 B3 ^$ _/ k, o& n" D( N! l
y3 ]- X7 G/ B1 g' z5 y" ^7 d- ;; 添加行列表到字段列表中。
) A7 T$ A& @! R& `& w - 1 ~( T& g$ Z8 E( I) W9 O- @
- (append (list (reverse FieldList)). [4 ~, r3 ]- z. N. M* b3 v
- ' f+ g" C4 _: ]# c+ ~
- ;; 使用了Douglas Wilson一流的列表转换代码) `4 m) W" l0 V* U$ N
- ;; 来创建行列表，因为GetRows返回的项为列顺序
5 h8 M0 w) L4 u - 1 u. ~ H6 a6 X- R& R% H
- (apply 'mapcar5 R, B% ?$ y# O9 T7 U0 }3 |
- (cons$ L( ^' A6 b4 s/ I$ @2 s
- 'list
v2 Q1 i, D9 B7 }; J
% `3 ?; X6 r8 C: ]) A- ;; 设置转换变体列表的列表到AutoLISP标准
5 X# X+ G7 A5 y4 F9 p - ;; 的项目列表的列表。
) o' b# O8 m1 l! }1 C
3 F9 C; Y" ]1 i- (mapcar T* S. o v/ X. ~/ d% K* ]
- '(lambda (InputList)0 f2 r# V' M: v, \: Y- \5 O
- (mapcar '(lambda (Item)7 ^$ n- M# a/ r' J- P `6 F
- (DBL_variant-value Item)
, `- r, t4 W' ^: x' S - )1 I5 }' z) w |5 F% J
- InputList
' w) m4 k$ W; b, d - )
9 f, O: L+ x. L* e8 Q, T3 Z - )
" ~; H9 T4 J2 Y) u! s% R* y" r - ;; 取得行，将其从变体转换安全数组再到列表0 e6 G* ~9 w0 w0 r: X* r, `
% O- V5 C6 B; }( _0 H ~- (setq t2 (vlax-SafeArray->list
( P" N5 V/ ~( ?+ Q - (vlax-Variant-Value
7 @$ ^- s* V- E. c1 i1 \) q. h - (DbRsGetRows RecordSetObject)2 J3 ^0 t. O: U3 o2 p
- )
! q# w- r4 B1 g; l* ~/ l1 S - )
; G3 p9 \" N' s% N l* k - ); setq& ~& t2 l4 [5 L/ }" ~6 ?9 V
- ); mapcar6 k& V6 m& q0 [: B
- ); cons8 C! I1 ?" T- g& l3 G( Y2 h
- ); apply) u4 R7 B y9 o2 C q8 j8 g! z
- ); append1 p( [. {' }& |$ U) S; P4 l. H4 r" e: |
- ); setq9 h) {3 K4 E: U8 o8 x% ^% A
- ); endif( F/ O5 b( U: n; }$ }
1 P c/ o# z+ P' B8 h+ P- ;; 关闭recordset
9 `/ J% a" m% X! L - (DbCloseRecordset RecordSetObject)9 F% ?& J( h2 X3 a- _
+ g/ x; U! z! ]8 z. g- ); progn, F( F* \: h3 g8 \) B
- ); endif% ]/ U# {2 o' I3 Z. `5 e8 z$ @$ @
- ); endif
# h' E( ]; n0 I. k6 O* I; e, w8 d
& W- E! u8 j$ e9 }- ;; 关闭connection' T1 l2 _. b* V7 h3 O g; T& f
- (DbCloseConnection ConnectionObject)
8 J: z" ^ \* c2 u5 h - ! |$ s' R, o6 T5 r5 Q4 |
- ); progn% b/ }3 p% v, U$ [# R
- ); endif' e/ l6 h0 R+ ~6 g
. E; O9 C( q( }7 X9 H- ;; 返回值; y0 P6 k5 N( P5 t1 k
- ReturnValue
2 y9 x+ y8 a5 @% j! w$ j
& H$ q9 E- \: A5 l- ); defun
|
发表于 2007-3-30 09:09
发表于 2007-3-30 12:43
楼主