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代码案例:
3 V* t; ?/ G- u% g0 B0 N- package com.cjg.servlet;, H; n- ]( c2 B3 e! ^0 |" `9 j
/ A i# u- P. R$ z, O- import java.io.IOException;( e! Y' P' d2 A+ }
- import java.text.SimpleDateFormat;3 G& p& W O2 H, H- p
- import javax.servlet.ServletException;
; h3 ?, @4 Q; N, O& j0 k# o - import javax.servlet.http.*;4 K- ~ u# d' w. W/ }( F. Y; t, G
- import com.cjg.tool.*;+ O3 a) i* J X, z
- % l0 @' J, N3 K
- public class AddMessageServlet extends HttpServlet {
) W1 V4 r( Y5 ^$ z) t" q* Y/ S - private static final long serialVersionUID = -8349454122547148005L;; d6 j9 H6 k( H' E
- . Q' z. p8 t# ?: M- i
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {: s, `! x+ Z1 `9 `, b) F
- String sql = "insert into guestbook (id,name,email,phone,title,content,time) values(gb_seq.nextval,?,?,?,?,?,?)";# w1 {0 ^: g8 i' W
- int result = 0;
* p+ \4 |2 Y9 D - String message = "";4 ]- T/ ~- W8 p( p1 t- h: b( t' d0 i
- String name = request.getParameter("name");, S8 z( X/ A1 [$ V% y2 b
- String title = request.getParameter("title");
) t# a3 i5 R/ s0 `" [
# x/ p- s4 ~ U6 Z; Y! a1 c& m- if (StringTool.validateNull(name)) {
, E3 C% D n3 e1 X# O, _$ {7 v; J - message = "对不起,姓名不能为空,请您重新输入!<br>";3 Z' Q! W7 H( K" ?1 d$ g
- } else if (StringTool.validateNull(title)) {
* u# E& B3 w: X g - message = "对不起,主题不能为空,请您重新输入!<br>";- G. z6 d6 E( h T; Q
- } else {1 g' H$ m# s2 F& ~1 L# G) f
- SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
. k6 \" R. {4 i* a - String param[] = { StringTool.filterHtml(name), StringTool.filterHtml(request.getParameter("email")),2 \# U% b( h. H3 Q3 X, Q4 O
- StringTool.filterHtml(request.getParameter("phone")), StringTool.filterHtml(title),
: G |; z2 `) ]7 | - request.getParameter("content"), sdf.format(new java.util.Date()) };$ e! G ]) C5 \
- OracleTool db = new OracleTool("java:/comp/env/jdbc/oracleds");
$ q9 p+ T# p* T* c0 ]9 J" J2 U - db.init();7 _) z1 v+ {0 V1 v3 v9 s
- result = db.update(sql, param);
- Z( n9 h4 o. e9 \ - if (result == 0) {
0 r% E9 L0 N/ [; c9 i - message = "对不起,添加留言不成功,请您重新输入!";' {0 j" d7 L, m# W5 d
- } else {. Q8 I* n8 ~- a7 H2 @. C/ r
- message = "祝贺您,成功添加留言。";! x0 Y$ l! s) ]
- }
2 `8 _" d2 q0 B! o - }
" F5 R6 Z. r1 f' V T7 C0 [9 p4 a - request.setAttribute("message", message);. ^- ]3 ?, e; S! j
- request.getRequestDispatcher("/addResult.jsp").forward(request, response);+ H. X5 H/ M+ Y+ g9 {9 B. X7 ]
- }, ]( o- B9 U3 T) Q. ~: k5 ~" ?
- }
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复制代码- package com.cjg.servlet;
: O: L& x6 G( g d5 { - import java.io.IOException;
6 u; Y( k6 @ F' K$ U, @ - import java.util.List;; f0 N* l' m- f7 p+ ?9 h
- import javax.servlet.ServletException;. u4 W0 {2 s& h4 z
- import javax.servlet.http.*;
2 B+ r. R: H. _4 Q! C* t - import org.apache.commons.dbutils.handlers.BeanListHandler;$ o h0 v$ v2 j! Z. C- A0 U7 Y
- # W. I& \/ i/ @! n- g! Z2 ~( Q
- import com.cjg.tool.OracleTool;
+ K u- ~1 b1 ?9 k
" O8 d# N& F. h0 T. w5 _( k- public class ManageServlet extends HttpServlet {
6 a1 y2 _- n- {; y, m+ ]* q - OracleTool db = null;
+ k t' ^" K4 y: G- ~ - private static final long serialVersionUID = 204655027689309554L; _- U8 k- w9 U: d, F6 Z
- 7 M+ c |5 ^% ?9 F* d' g$ z" e, n
- public void edit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {& T! I) T! r Q& X0 v. Z& Q! z
- String params[] = { request.getParameter("id") };
- ^$ E: {0 L+ ^# D: Z# G - String sql = "select * from guestbook where id=?";2 [1 O/ ^# k% g1 f& r* f4 L# ?1 W* U( k
- List list = (List) db.query(sql, params, new BeanListHandler(MessageBook.class));
0 y9 |$ F/ t9 A' L- p( Q0 ? - request.setAttribute("guestbook.admin.edit", list.get(0)); - \4 ~7 \; N' D+ `
- request.getRequestDispatcher("/admin/secure/edit.jsp").forward(request, response);
# }; O* Q M( ? - }
* s- q; a( G- v6 a
3 r# ]+ k; L' I/ y, U0 T- public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
( {6 o$ N: D" {# v9 L/ A - String params[] = { request.getParameter("name"), request.getParameter("email"), request.getParameter("phone"),
! d) c+ \/ N- \% ]( K6 |& q' s& c - request.getParameter("title"), request.getParameter("content"), request.getParameter("id") }; * ]7 I9 t3 `% B5 d
- int i = db.update("update guestbook set name=?,email=?,phone=?,title=? ,content=? where id=?", params);
2 A6 ~7 h, E6 k+ W8 c - if (i == 1) {
4 f6 e% b. C3 f- [ - request.setAttribute("guestbook.admin.update.message", "更新成功!");9 ?$ J i" P& h: _! W5 F U
- MessageBook gb = new MessageBook();. x4 @7 ~. N* `1 L9 P
- gb.setId(Integer.parseInt(request.getParameter("id")));
8 r: Y) P9 e# _$ E - gb.setName(request.getParameter("name"));2 w U; L! C+ l' K* o+ }
- gb.setEmail(request.getParameter("email"));3 E" s, | k3 V/ T
- gb.setPhone(request.getParameter("phone"));
) }0 S) i8 G0 h( W2 W - gb.setTitle(request.getParameter("title")); u& Y! e+ n& J- c6 s+ T V7 q
- gb.setContent(request.getParameter("content"));' X/ d' K9 Y& Y( U
- request.setAttribute("guestbook.admin.edit", gb);
) H" S C3 x. M - } else {
2 e% e5 f# ^# E6 f - request.setAttribute("guestbook.admin.update.message", "更新失败!");5 a+ J# L/ h; D8 P. _# j
- } request.getRequestDispatcher("/admin/secure/updateResult.jsp").forward(request, response);1 e7 Y& H# d2 M8 }0 }1 S
- }8 A# d4 J: s/ t( r3 [, ~" H
/ `) T( R3 l o- t) l& G3 X, x2 @2 u8 q- public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {) B! S8 f, U9 w M" \3 f: }
- String params[] = { request.getParameter("id") };
3 A. f2 e9 G6 c - int i = db.update("delete from guestbook where id=?", params);1 \0 M8 E9 i% [0 O1 _
- if (i == 1) {
. `3 B. K' O( c( ]$ i! s3 K' C - request.setAttribute("guestbook.admin.delete.message", "删除成功");9 E' r$ ]! D* K* E! f0 S6 k \; {
- } else {
; h, B6 `2 A; W# | - request.setAttribute("guestbook.admin.delete.message", "删除失败");, n$ Y7 y9 h9 q. v7 b& _* h
- } request.getRequestDispatcher("/admin/secure/deleteResult.jsp").forward(request, response);6 G" L5 d( B d8 f
- }
4 _* V% T# X( b6 H
; V. g) \) ]8 s: [) w" X+ `( D- public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {. U6 w, ]7 y- a! ?6 D
- List list = (List) db.query("select id,name,title from guestbook order by id desc", null, new BeanListHandler( p) J5 ^0 ?4 |2 A) a3 R# M+ |
- MessageBook.class));
2 z( G- u' q0 }1 Y1 | - request.setAttribute("guestbook.admin.list", list);2 f: ?% f5 Y* z" |/ Z- m( Q {
- request.getRequestDispatcher("/admin/secure/list.jsp").forward(request, response);, p9 e& k8 j8 q: t+ q7 [
- }, c* w0 Y5 N1 [% O0 W
- - U. A' u) M$ k7 Y
- public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {# [( \* @( c8 k2 d0 w: J
- db = new OracleTool("java:/comp/env/jdbc/oracleds");
/ p/ Q" l1 h9 l - db.init();
. ~: \+ A) n2 W( t. U/ T- X - String method = request.getParameter("q");7 [7 w" s; }' e- g( u; {5 P
- if(method==null){
' e2 W3 i9 x8 d% k - method="list";
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- if (method.equals("edit")) {
* B j9 t# }! h5 F - edit(request, response);
2 T2 k& [& ?; Z' Z5 K2 j4 h% r - } else if (method.equals("delete")) {
- V& u+ r- N: r& M( ~# Q0 ?& ] - delete(request, response);, z! e, N& s& R9 [$ B) z
- } else if (method.equals("update")) {8 u: m! v7 M1 W
- update(request, response);: c. ]$ l2 f; y/ t) d) ~6 U6 t
- } else {
5 h" _; K" x! `0 D4 P3 m0 r, R - list(request, response); u2 h3 b0 u/ C) b4 q6 u
- }
% F( B1 j, e" {4 K - }( S0 R' p4 ~" D& o" u+ b. J
- 1 E1 M& m5 E4 E: i% {' Z! a+ ^% f
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {9 H- K# _: \/ L4 D% U
- doGet(request, response);
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- }
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