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代码案例:
! K2 Y. b1 t- M% h2 u0 `7 Q- package com.cjg.servlet;& A# f& b% B! F5 p
- + [5 j! S. x- s' L
- import java.io.IOException;
% N) d- V$ [% w: D - import java.text.SimpleDateFormat;! H- B3 ~* D6 v% p% n3 z
- import javax.servlet.ServletException;1 V+ \# r \* k/ j P6 @
- import javax.servlet.http.*;
: W4 O1 @0 C' s6 K2 b8 n - import com.cjg.tool.*;; i6 Z: E+ o2 f" A8 \
% A8 K) W+ I& F$ g+ |* q- public class AddMessageServlet extends HttpServlet {+ s8 t3 k8 U+ P, x. v+ ?! R
- private static final long serialVersionUID = -8349454122547148005L;& o% C7 n- g1 U9 s% A
- ) H, \$ f- _ I$ B5 h
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {; } P0 S; S# Z
- String sql = "insert into guestbook (id,name,email,phone,title,content,time) values(gb_seq.nextval,?,?,?,?,?,?)";8 D0 D- I8 _7 Q" N3 m' c$ A
- int result = 0; z* k& i; }& i" g( d! B
- String message = "";4 T& l& d5 r) G) L- u
- String name = request.getParameter("name");! G- J- E. C% c% Z, ]0 ^# A
- String title = request.getParameter("title");7 @2 |: e) x. u& G
- 6 P$ u2 u0 Q2 ]
- if (StringTool.validateNull(name)) {/ P# I# @. p" w( K6 ^
- message = "对不起,姓名不能为空,请您重新输入!<br>";9 w" |. U# l# c% N1 C, [( r i. A
- } else if (StringTool.validateNull(title)) {6 W- K. u* Y# w q, Q
- message = "对不起,主题不能为空,请您重新输入!<br>";. {% L+ x; ?* m! Y% J
- } else {
0 i% h0 z( f. E3 {; v - SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
( t4 \3 a3 D4 c J+ P* }# o - String param[] = { StringTool.filterHtml(name), StringTool.filterHtml(request.getParameter("email")),6 y. z8 f9 f% z! f9 U
- StringTool.filterHtml(request.getParameter("phone")), StringTool.filterHtml(title),
& j( I: R! Y( ?0 K6 ~" R0 s/ [ U - request.getParameter("content"), sdf.format(new java.util.Date()) };
! M; r' U& \3 e - OracleTool db = new OracleTool("java:/comp/env/jdbc/oracleds");
- }4 H. L r' d7 f7 B. R7 m - db.init();. M: D, i7 c6 m8 [& P2 G5 o
- result = db.update(sql, param);
A- V3 g. A d2 K7 Y - if (result == 0) {# j0 {! S6 }8 A, p1 ^& h" c
- message = "对不起,添加留言不成功,请您重新输入!";
" g% T( P1 S$ y0 U( Q; o - } else {% z+ s4 p( S: S8 X6 s7 Y
- message = "祝贺您,成功添加留言。";
- u2 ]& Q8 u7 L- K0 ` - }
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- request.setAttribute("message", message);% q3 g9 Y, ^& z+ ?9 m: j# R
- request.getRequestDispatcher("/addResult.jsp").forward(request, response);/ y% n; P: m- J1 a' _
- }" ^' T$ M3 M5 Y- _8 ?3 u" t8 x: x
- }% i" D' Y" {+ g) ?3 y7 o4 j
复制代码- package com.cjg.servlet;( {# _/ t8 c( s# [
- import java.io.IOException;* K1 l9 N# A6 P5 p v
- import java.util.List;% N" a3 [: @7 P6 X3 A: i2 d ~
- import javax.servlet.ServletException;# S4 G' K. x: @- j. W: l
- import javax.servlet.http.*;
- b. x6 j! r6 w& [$ r; x( K - import org.apache.commons.dbutils.handlers.BeanListHandler;( S7 n7 V9 T, l0 f
/ e5 @, C3 d3 D" R+ D- import com.cjg.tool.OracleTool;, e. R" `" u& X& c5 u
: `3 q0 {' R0 p8 l2 H- public class ManageServlet extends HttpServlet {
3 p7 x* P5 y' g' _- a; @ - OracleTool db = null;
. d4 v; `$ m; J: _$ y& W% W - private static final long serialVersionUID = 204655027689309554L;7 f! L( n! G- f- l7 e/ b: i
h7 P- P9 t/ O& |8 p- public void edit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
5 u8 f3 J4 D- ~. q( W$ \* ~0 a- ` - String params[] = { request.getParameter("id") };
% ?8 i, _& x8 a9 ]2 E - String sql = "select * from guestbook where id=?"; X! ?* u% L/ j- {5 ?+ j3 r2 H
- List list = (List) db.query(sql, params, new BeanListHandler(MessageBook.class));. k7 M p$ G% _; l) ~
- request.setAttribute("guestbook.admin.edit", list.get(0)); + |. m. p) |0 [, n' ~
- request.getRequestDispatcher("/admin/secure/edit.jsp").forward(request, response);
$ {1 \/ N2 t9 J9 m# {) Z- N" y - }
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: c8 {* |# Z5 O! L- public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
1 s2 l. s, E4 p& i! C4 k - String params[] = { request.getParameter("name"), request.getParameter("email"), request.getParameter("phone"),
4 b, X4 `& o: ~- Q - request.getParameter("title"), request.getParameter("content"), request.getParameter("id") }; ( N; N# I) S) H- i2 L
- int i = db.update("update guestbook set name=?,email=?,phone=?,title=? ,content=? where id=?", params);0 X+ o6 n0 \" n/ i8 g. y; @
- if (i == 1) {8 ]0 I8 ^7 @' f( X7 y9 w3 y) N$ @$ }
- request.setAttribute("guestbook.admin.update.message", "更新成功!");
5 P. I# k: }7 F - MessageBook gb = new MessageBook();: h5 Z7 G6 R. |+ O
- gb.setId(Integer.parseInt(request.getParameter("id")));# \* q" b, p( F, |8 p
- gb.setName(request.getParameter("name"));, v( j5 e3 L8 l r9 \, y
- gb.setEmail(request.getParameter("email"));
" K8 V$ ]. E0 X2 _ - gb.setPhone(request.getParameter("phone"));
! F/ N3 X6 c& r6 w - gb.setTitle(request.getParameter("title"));
* ~, o( {" M E - gb.setContent(request.getParameter("content"));! t( s- M9 m: Y6 Y4 S
- request.setAttribute("guestbook.admin.edit", gb);4 O d; f- P" g
- } else {$ j6 y2 Q. T3 t3 U/ l1 }
- request.setAttribute("guestbook.admin.update.message", "更新失败!");3 O @. S8 b) K+ P+ g' m0 |0 @
- } request.getRequestDispatcher("/admin/secure/updateResult.jsp").forward(request, response);& ^" o* y/ G3 e9 _% \7 B6 \" x
- }3 M2 P9 e+ s$ e! G! u
- 0 V* g! U# A. r
- public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
% x, L' N- T) ^' L( I; C _" d - String params[] = { request.getParameter("id") };' s- t2 ]; T" N! G$ {7 F& I1 F
- int i = db.update("delete from guestbook where id=?", params);
/ s e+ s' V+ A. Q - if (i == 1) {% s$ [" M1 K3 S2 s
- request.setAttribute("guestbook.admin.delete.message", "删除成功");( \+ ^6 Q3 E0 H6 s d- d( s% b
- } else {
7 o+ f) R# s# d; n' v2 X - request.setAttribute("guestbook.admin.delete.message", "删除失败");
% n( T8 @+ b4 S- u7 a+ Q( X - } request.getRequestDispatcher("/admin/secure/deleteResult.jsp").forward(request, response);0 I e6 {3 g* ` x' G3 q
- }) y1 V4 h9 } s3 j2 q& b$ n$ S8 e
' K; m# N1 `7 j- public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
3 Y0 g4 [/ s# a0 i% l - List list = (List) db.query("select id,name,title from guestbook order by id desc", null, new BeanListHandler(
! U* ]0 Z( S+ d" l* [! d - MessageBook.class));% b$ G4 h( M9 e) o' _% e" ]3 E4 o
- request.setAttribute("guestbook.admin.list", list);
/ b8 U4 B& J" A A - request.getRequestDispatcher("/admin/secure/list.jsp").forward(request, response);4 M, ^1 _7 ~: N, o$ a3 }' Z8 M
- }7 U/ G7 }8 e+ X: K
0 h. l$ X: m; v2 N- public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {8 [9 m3 y: f: _+ b
- db = new OracleTool("java:/comp/env/jdbc/oracleds");
1 s, F1 \0 v. Z, G: r2 K - db.init();4 {3 j' P1 z$ s9 K3 L
- String method = request.getParameter("q");
2 I7 R+ D% l- K0 t - if(method==null){
; s& n) Z% X9 R( x- i- ?$ O. z - method="list";
5 K- {, S( _% T9 H' m0 R! i; M - }
7 z1 X8 r6 [6 A+ ] - if (method.equals("edit")) {. Q8 |6 @- W2 K
- edit(request, response);
2 r3 Y( f) z$ Z( b% ^" Z; A - } else if (method.equals("delete")) {' h" l9 h( {8 r8 l- x7 [0 A4 E
- delete(request, response);% P$ \, x7 x w: `. ^
- } else if (method.equals("update")) {
& H3 \9 U) G# |5 N& y - update(request, response);& A U0 p7 O' j1 z2 f0 u
- } else {
; h2 q- [0 P! E - list(request, response);" K# r2 r; {4 ^" m! W7 W0 l9 h" |
- }
3 U* n$ @1 H7 f7 s8 u - }; b2 i- k% n- O m
7 k$ ^ G! y; k* o# E- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
! X4 R) k6 z, s9 R - doGet(request, response);
0 e; Z( k. B: b0 l4 n( J0 ] - }( R1 {. h$ Y! D. X$ i) ^9 \& ~
- }
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