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代码案例:
# C8 e; C: e0 \, W- package com.cjg.servlet;/ b7 e5 A/ m: t9 T: b; J6 m
* t! e/ u, |8 f- import java.io.IOException;) v7 H2 T( U! O/ A& U5 P& Z& J
- import java.text.SimpleDateFormat;" p. W. f5 u0 l5 T# T8 q: g& C
- import javax.servlet.ServletException;
& G1 K( H* V5 Q - import javax.servlet.http.*;- k* @, i& U$ S% {) r
- import com.cjg.tool.*;
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- public class AddMessageServlet extends HttpServlet {! h+ n }1 U+ d5 e
- private static final long serialVersionUID = -8349454122547148005L;
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P; B9 c/ f0 V- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {$ J* D8 Y" A* I
- String sql = "insert into guestbook (id,name,email,phone,title,content,time) values(gb_seq.nextval,?,?,?,?,?,?)";- Y4 B$ v- l' |# @
- int result = 0;
- v% m7 y; N: z) y - String message = "";
2 ]+ i- X g9 q- L @ - String name = request.getParameter("name");1 ^& F) U9 {; o) _: {+ ?
- String title = request.getParameter("title");% n0 l' }, g8 F4 V6 l1 K; S
- 9 Q" s8 Y4 J( J& ]$ t; \
- if (StringTool.validateNull(name)) {
, G: u) l$ Y* b9 m9 r! ]2 i" G: n8 n - message = "对不起,姓名不能为空,请您重新输入!<br>";6 n4 H% }% y& [; f! h+ L
- } else if (StringTool.validateNull(title)) {
a# v5 O! }# R3 Z: c% r - message = "对不起,主题不能为空,请您重新输入!<br>";) ]1 s2 C: L" I! X+ p6 h; K" W
- } else {
" c7 G- e. v, a( u N" O - SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
( R8 w/ s! d) ?$ _ - String param[] = { StringTool.filterHtml(name), StringTool.filterHtml(request.getParameter("email")),
) a/ d- r# I6 X* F9 N* z! s: I - StringTool.filterHtml(request.getParameter("phone")), StringTool.filterHtml(title),) I9 h6 |& \; K
- request.getParameter("content"), sdf.format(new java.util.Date()) };
" y+ r8 ]8 F, i+ R6 A3 m- Z - OracleTool db = new OracleTool("java:/comp/env/jdbc/oracleds");
" G# m+ X1 \/ e, N" d/ P, ] - db.init();
3 U5 J5 p) o6 `* ~# k! Q- O3 t - result = db.update(sql, param);) R0 D& s x( ^1 a
- if (result == 0) {# q$ D. l! D5 O/ w; z
- message = "对不起,添加留言不成功,请您重新输入!";
# F: I& Z! O6 t: R2 T - } else {& ]3 U+ c, W, \4 I' j, u4 w
- message = "祝贺您,成功添加留言。";' P; i9 a' S. h/ e# i2 N1 W
- }
) p' k& x+ q+ d( f% h7 a; n - }
' T1 W5 \$ Z+ Q# _) o, F9 j - request.setAttribute("message", message);
7 Z- v0 Z: i: O4 G" s* l N# N - request.getRequestDispatcher("/addResult.jsp").forward(request, response);
- Q: @( v# i8 k( M8 r - }
4 _: \2 c8 | R - }
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复制代码- package com.cjg.servlet;3 D$ y. u5 `+ x2 @! @
- import java.io.IOException;! x3 W$ [/ o6 w4 F/ b* L) Z; ?
- import java.util.List;
: \1 l! ]% g1 H2 K; a - import javax.servlet.ServletException;% T; N; ]5 f- F) K- L* _ `
- import javax.servlet.http.*;2 a( [/ e P& o! [* b7 l
- import org.apache.commons.dbutils.handlers.BeanListHandler;$ g" D9 l* M1 u
. g- ?( n: H, j. ]/ k0 A# n) n- import com.cjg.tool.OracleTool;
: T2 _6 b- N1 [, w# U8 j# ?% d - - u" |- h/ z' K$ z1 J
- public class ManageServlet extends HttpServlet {
- U/ t5 @! S9 E* ?$ p1 M7 E$ ~( T - OracleTool db = null;4 {/ `$ x: l0 V. [
- private static final long serialVersionUID = 204655027689309554L;3 ?% n, f7 D: c4 e* e% q4 r( C
$ ?, X+ u. t; f; E: C- public void edit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
# a. @( z& m$ f, M, _' ]% K( K - String params[] = { request.getParameter("id") }; 1 s; A" i' h% S9 P& ~
- String sql = "select * from guestbook where id=?";
$ v$ _6 c: b/ s: N. m/ ` - List list = (List) db.query(sql, params, new BeanListHandler(MessageBook.class));9 G3 j- m+ t% D5 z. h) h0 t
- request.setAttribute("guestbook.admin.edit", list.get(0));
( |) x3 q6 c+ {9 T - request.getRequestDispatcher("/admin/secure/edit.jsp").forward(request, response);2 P; w0 [1 G! k& n
- }* B9 i; ] V* Y7 |$ ^! \
- 0 S" z; { g8 d" }/ i+ w. [
- public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
7 R% u5 _1 ^: g. O - String params[] = { request.getParameter("name"), request.getParameter("email"), request.getParameter("phone"),& y& I7 A" [% S* }" t: C$ N
- request.getParameter("title"), request.getParameter("content"), request.getParameter("id") };
6 K& X6 E E! Q5 ]# J - int i = db.update("update guestbook set name=?,email=?,phone=?,title=? ,content=? where id=?", params);3 Z) r) d. F, f& v: N, E) V
- if (i == 1) {
( D: y' Y( X# Y4 i. d - request.setAttribute("guestbook.admin.update.message", "更新成功!");
1 D* c" _$ O; e$ o - MessageBook gb = new MessageBook();
! h# R; l, n+ ?( F; J" m+ E. y - gb.setId(Integer.parseInt(request.getParameter("id")));
* z4 ]$ M6 @6 N$ `( [% j - gb.setName(request.getParameter("name"));; N# e4 [: m2 ^9 E! Q y) k
- gb.setEmail(request.getParameter("email"));
1 L; M& B# ]3 c4 L) }* r - gb.setPhone(request.getParameter("phone"));
% |4 N: K6 A( v* [- d, v4 X - gb.setTitle(request.getParameter("title"));2 S/ X2 J! j# [% J& L! B& C( H+ }8 c, d
- gb.setContent(request.getParameter("content"));7 ^ k4 f+ c+ z
- request.setAttribute("guestbook.admin.edit", gb);0 A* h) X/ Z8 i
- } else {
, x @8 M7 H- n. M1 V/ f - request.setAttribute("guestbook.admin.update.message", "更新失败!");
( n; t; _9 D0 O$ j" `: x - } request.getRequestDispatcher("/admin/secure/updateResult.jsp").forward(request, response);$ F1 f# J2 b% Q9 b' e
- }4 p# J" x$ d/ r4 C
/ o# O8 t j6 K- public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
0 x. P& v4 x! p - String params[] = { request.getParameter("id") };' ]. @& t" D4 t1 U* J
- int i = db.update("delete from guestbook where id=?", params);9 b! l' P1 T: K- A7 V2 ?. r
- if (i == 1) {
/ d+ { `! n: Z5 U; N4 N4 n - request.setAttribute("guestbook.admin.delete.message", "删除成功");
{: I- w% X& v! m. [: N - } else {
5 f) x- w4 ?4 J |6 ]& } - request.setAttribute("guestbook.admin.delete.message", "删除失败");0 E: ]) f9 F; {& U2 _2 M. v9 B; C& F
- } request.getRequestDispatcher("/admin/secure/deleteResult.jsp").forward(request, response);
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: U( O! R/ ^* z/ I* y0 ?3 I3 k- public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
! r& U1 _4 z. k+ l M4 E5 M5 b. g) _ - List list = (List) db.query("select id,name,title from guestbook order by id desc", null, new BeanListHandler(+ i) Q6 V! r/ C7 a( {8 g- e1 f
- MessageBook.class));' ]7 d S( }9 \. G/ S, u
- request.setAttribute("guestbook.admin.list", list);; ~$ R4 i. h2 T$ i9 }& }
- request.getRequestDispatcher("/admin/secure/list.jsp").forward(request, response);. w/ ^: i7 y* }, F1 s% g) L
- }6 V9 u: a6 s% N
- $ H9 c* Z& g1 @0 U* D8 X
- public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
" E- ?4 B4 U- e8 `+ Y - db = new OracleTool("java:/comp/env/jdbc/oracleds");
* i: x- K w5 U* @9 }1 U; F- y - db.init();$ z9 J) _% F; _3 P9 `
- String method = request.getParameter("q");) y3 W0 x0 i1 D0 g% y" I' \
- if(method==null){* K% Z% F" ]$ \( D
- method="list";
' r' D* j0 f5 {* |8 C - }
* o% q7 h0 X8 F( V% I& e- _ - if (method.equals("edit")) {6 c" @2 V9 ~5 [0 V
- edit(request, response);" Z h, n+ e- ]/ D8 y1 k+ `- T
- } else if (method.equals("delete")) {/ M% g# z* t0 P8 q* z
- delete(request, response);7 O3 T6 S9 f: P/ s) {
- } else if (method.equals("update")) {$ C0 z% n! g4 Z; M7 n1 } m, }
- update(request, response);
4 y6 ?; |* \' u9 S4 S - } else {
$ J, C1 b+ H- l$ i6 `+ } - list(request, response);0 A2 L- ] A5 I1 Q T
- }
$ G4 @, A" b3 Z2 Y - }
) `7 {+ b7 L% C4 K+ c; |- f3 K
# Q2 E. J, z: q- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {5 }) _% l9 L. Z; U- _+ i
- doGet(request, response);
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