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代码案例:
8 }! P/ k; W) I8 R% x% L- package com.cjg.servlet;' y' K- }' ^( g3 s' x
- ( [- {' t2 h7 [% d( t) E
- import java.io.IOException;) m3 j" L% P/ R, J- N7 P
- import java.text.SimpleDateFormat;8 z( F0 u8 l4 t3 ?, q+ q# @6 }6 {
- import javax.servlet.ServletException;
* q6 k" d) m! w/ e. }; i' N - import javax.servlet.http.*;
/ {( N. C) p; [& r+ x! W' m - import com.cjg.tool.*;
/ v c( u {0 s$ P
" p; |5 c) ~$ m- ]) v- public class AddMessageServlet extends HttpServlet {
6 \8 D& l7 v! _+ W7 z+ K \8 C - private static final long serialVersionUID = -8349454122547148005L;
. J8 ]1 v; k1 G. h# b2 w - ' I& l: i) x* G' Z8 r t( x- M
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
6 p( C1 w5 E4 _! k - String sql = "insert into guestbook (id,name,email,phone,title,content,time) values(gb_seq.nextval,?,?,?,?,?,?)";! I6 g! N% P1 h; ?0 B* R
- int result = 0;
. x# a! G, L; J& [, t - String message = "";! w" P5 [& ?# x% M; M7 \
- String name = request.getParameter("name");' Y# V" H+ U$ H+ J
- String title = request.getParameter("title");/ U' ~: H$ T6 U1 W
- 3 v" c4 b$ o: z* k6 ~! Q: u8 l
- if (StringTool.validateNull(name)) {
: @ G# I8 T1 R7 s+ R* S8 m& M - message = "对不起,姓名不能为空,请您重新输入!<br>";; \/ [3 u4 E/ v- g1 ^7 a( |
- } else if (StringTool.validateNull(title)) {$ l+ E, d% e" L: q
- message = "对不起,主题不能为空,请您重新输入!<br>";4 l. b: V1 y) P/ l/ C+ E* L& E
- } else {
% A9 F( p/ ] ? - SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");* B6 J8 L7 L+ J8 u, }# r' \, ^
- String param[] = { StringTool.filterHtml(name), StringTool.filterHtml(request.getParameter("email")),* h8 s1 j8 U) M
- StringTool.filterHtml(request.getParameter("phone")), StringTool.filterHtml(title),
) z: H. V* e; v) L - request.getParameter("content"), sdf.format(new java.util.Date()) };
}% C8 ]6 [& E" m. O - OracleTool db = new OracleTool("java:/comp/env/jdbc/oracleds");
# u$ n9 f- d% u' ?, W7 x( b - db.init();% X1 M% F' c3 l1 \3 c; C
- result = db.update(sql, param);
! y7 \& U. A' }. W- q1 n - if (result == 0) {% X+ N: D8 f* c( x1 a" U/ c
- message = "对不起,添加留言不成功,请您重新输入!";4 v7 K5 T5 q. k' T
- } else {4 `$ d8 j% @$ [0 w" [; T& @
- message = "祝贺您,成功添加留言。";! Q* c% C: Q) F' g' T& h& K& a
- }" h) w f& l! B. Z' ~) r4 z
- }; c; N; k* Z2 W
- request.setAttribute("message", message);; o: N! b+ _# }% O4 E1 U
- request.getRequestDispatcher("/addResult.jsp").forward(request, response);& b5 u, T$ A! p5 s" c7 A: K
- }' J# H1 x) `. @+ x8 ?
- }
4 A$ I0 m' t6 z: X: M
复制代码- package com.cjg.servlet;2 o/ R3 B) h& e3 u! i4 A4 s
- import java.io.IOException;( B6 u2 l4 _6 D5 }! }
- import java.util.List;. s: e* u& M% v" _8 H% S* X
- import javax.servlet.ServletException;6 x, Q$ U6 H$ A3 m, V1 G4 K
- import javax.servlet.http.*;* f7 [5 ]% s; l# Y- |
- import org.apache.commons.dbutils.handlers.BeanListHandler;
8 }5 @' {1 H8 K X - 9 P# r) |" P+ _4 b
- import com.cjg.tool.OracleTool;* U; T) ~, N; @; {) U
7 ?- y1 o$ y" o" N" `, G3 B- public class ManageServlet extends HttpServlet {
, w/ z' S* |8 ?- @# w. l - OracleTool db = null;
4 O; ~* f' a: Z( o( K - private static final long serialVersionUID = 204655027689309554L;! w8 Y- H W, R7 J+ U7 C( V1 b
& `' c2 l8 @6 w# D; u+ {( S- public void edit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {5 r1 D" H$ I" [7 a
- String params[] = { request.getParameter("id") }; ( M( M0 ^6 G$ D; ? H/ ^
- String sql = "select * from guestbook where id=?";
4 V$ K* ^" O7 U- ?( }7 T - List list = (List) db.query(sql, params, new BeanListHandler(MessageBook.class));
8 s* n; Y/ V# | - request.setAttribute("guestbook.admin.edit", list.get(0)); 0 `1 _1 ]; w; d( b& Y
- request.getRequestDispatcher("/admin/secure/edit.jsp").forward(request, response);
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0 H7 I6 r3 T9 P$ L3 w! j& ^( i- public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
4 s/ ^. t" c0 c( z' s - String params[] = { request.getParameter("name"), request.getParameter("email"), request.getParameter("phone"),
# `- q9 }% P* ?7 x: Q" l - request.getParameter("title"), request.getParameter("content"), request.getParameter("id") }; - Q7 n# o8 }% G
- int i = db.update("update guestbook set name=?,email=?,phone=?,title=? ,content=? where id=?", params);
- f& ]: f9 B {7 O2 J+ S/ f) f - if (i == 1) {
. C5 |5 L& H0 m( [# U) t - request.setAttribute("guestbook.admin.update.message", "更新成功!");
1 ]/ s* ~$ s% j2 q4 Y) a% r4 x$ V - MessageBook gb = new MessageBook();% B& [- W5 Z4 T5 S6 ^1 A5 n" M
- gb.setId(Integer.parseInt(request.getParameter("id")));* h/ S4 Z- R, |& o
- gb.setName(request.getParameter("name"));
5 R" p; P7 M. N7 ^ - gb.setEmail(request.getParameter("email"));
; U8 Z: S4 J( V) _/ i% P1 |8 r3 p - gb.setPhone(request.getParameter("phone"));
. @4 p* k2 A2 r- [ - gb.setTitle(request.getParameter("title"));7 |- X, h4 p9 ?, z" M" [: h
- gb.setContent(request.getParameter("content"));
1 g# \8 F- _+ b9 A - request.setAttribute("guestbook.admin.edit", gb);: p$ a% z" H1 _, y4 @% Z
- } else {) K2 a- ?4 f: }9 J
- request.setAttribute("guestbook.admin.update.message", "更新失败!");3 ]7 _+ v" h$ D8 Q) w7 ~4 P
- } request.getRequestDispatcher("/admin/secure/updateResult.jsp").forward(request, response);' f6 h8 Q; ~. I: m, u, R2 _
- }
1 O- S9 t9 o: \* v
* D* r+ s# W' k( p2 [- public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
( c* w6 c9 P2 x, r1 p, m - String params[] = { request.getParameter("id") };
& ]1 d( B1 m2 f$ T9 K- X u+ ~# o# _) s - int i = db.update("delete from guestbook where id=?", params);
! ~' D5 D0 {' Z* J) O, B, [ - if (i == 1) {; e3 @& A9 z% K* [& ^
- request.setAttribute("guestbook.admin.delete.message", "删除成功");" W7 ]7 m r9 l5 z
- } else {2 S# [( ]0 T3 T# I6 S: g9 _
- request.setAttribute("guestbook.admin.delete.message", "删除失败");% S/ c& K; P7 f- g8 s, n4 O! ]) R
- } request.getRequestDispatcher("/admin/secure/deleteResult.jsp").forward(request, response);
5 y& n! ^, C, q& x4 z5 D' R3 L - }
$ p/ `8 `4 A+ Z2 H$ g1 [8 v8 p
~) R( s7 [! Q& M' S# P- j* o1 W- public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {% ~3 m: R; f4 n
- List list = (List) db.query("select id,name,title from guestbook order by id desc", null, new BeanListHandler(1 E( s6 H$ H0 A1 Q
- MessageBook.class));
5 G" V" a' r/ | d, i; F - request.setAttribute("guestbook.admin.list", list);
& D* Z) J4 N- K* u( s - request.getRequestDispatcher("/admin/secure/list.jsp").forward(request, response);9 u) V# @0 [0 g" Z
- }! K$ q. S2 Y) s% A. o5 w( B4 X1 }
- 5 L5 E2 M B( K5 z1 N
- public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {4 M4 X, \1 f7 X5 I$ x4 d) P) _+ _
- db = new OracleTool("java:/comp/env/jdbc/oracleds");
, A" {, H* g* ]7 G. c - db.init();' v% ?6 X; B: H) I
- String method = request.getParameter("q");
; Q) \1 s- C2 n5 ~. I0 } - if(method==null){
( g! H4 `) N9 X0 n# |; P8 G - method="list";( p$ U' l7 e) r/ t5 w; O' a
- } 4 j" L, j X* ^8 K2 h I. z( S
- if (method.equals("edit")) {* A& w3 Y3 [# V' T! q$ N
- edit(request, response);- Y+ T9 e( N% g W4 u
- } else if (method.equals("delete")) {
' s2 {8 X8 k% \( k - delete(request, response);
: b% M! X- E4 U( z+ N8 R - } else if (method.equals("update")) {
2 r/ p( \& p# \0 l& D+ e- e5 H - update(request, response);6 j: a: l. I# z
- } else {- q# M" y. l: a! Q
- list(request, response);
; Q2 S* J$ C6 |3 v+ _( s - }
f8 y. A- J s2 V - }
# p& [- x- ]" O
; z; C9 \, I2 f8 V4 {; h: X- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
$ Q1 | H# j6 s' v - doGet(request, response);
7 F& V0 m. i+ E4 Q - }9 _4 e; I" q2 a3 a$ w; U2 s2 E9 X h A
- }
* O1 j6 N/ O3 f. x
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