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代码案例:
; a+ s `2 c' n M9 u; [- package com.cjg.servlet;& Z$ v+ ?2 u5 m' V
- ) q& ?- \6 x4 U' ~* N2 W$ V
- import java.io.IOException;
: G$ o( W0 }3 W% {4 e, O - import java.text.SimpleDateFormat;8 u1 Q- y4 Q* m) G; {" [
- import javax.servlet.ServletException;* B9 n7 X5 ?4 @" H, u6 o
- import javax.servlet.http.*;8 m2 w( u' l+ E6 ~: l& c
- import com.cjg.tool.*;# W& i; ?# |' N" }
- 5 U; Q5 I8 ~: C' e( j: d( \# [
- public class AddMessageServlet extends HttpServlet {
, p8 A4 H% A1 K: Q3 V: h - private static final long serialVersionUID = -8349454122547148005L;5 ^, h) o: v8 a1 R3 \. N
7 p, e" O. f7 l/ G! k1 j5 c( w- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
# A3 f! _# A4 c2 `2 i - String sql = "insert into guestbook (id,name,email,phone,title,content,time) values(gb_seq.nextval,?,?,?,?,?,?)";) f' J* Z# {, Y0 g( W8 z R7 L
- int result = 0;
' o2 O! n2 e) a; o: W - String message = "";
$ v# m3 Z) @) ~1 X# j - String name = request.getParameter("name");
, M, g) n8 c3 ]6 ]( H# d3 h - String title = request.getParameter("title");) A) E+ U2 k o) o0 P8 k
- 9 W5 E/ Y3 u e) B/ ~$ |
- if (StringTool.validateNull(name)) {
3 { B k. U7 N7 e5 @% C4 J) } - message = "对不起,姓名不能为空,请您重新输入!<br>";
& S0 f0 g/ [2 v- V - } else if (StringTool.validateNull(title)) {
; x w. R- h, P - message = "对不起,主题不能为空,请您重新输入!<br>";
+ @9 z1 L% D$ A- @7 W; @; J - } else {
6 x( s9 @8 w& A8 H - SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");+ l8 \; E1 m3 P& z- e. G: R
- String param[] = { StringTool.filterHtml(name), StringTool.filterHtml(request.getParameter("email")),
) o; m& c1 }+ N - StringTool.filterHtml(request.getParameter("phone")), StringTool.filterHtml(title),
1 U9 i, M5 y6 W. y% L - request.getParameter("content"), sdf.format(new java.util.Date()) };
9 |! S; u% N% z/ V u% \6 n - OracleTool db = new OracleTool("java:/comp/env/jdbc/oracleds");
" u# S6 k9 h- J5 I - db.init();
6 X, Q: @4 d3 T6 i* M6 ^3 z/ q& r - result = db.update(sql, param);6 z4 t0 H, q$ X$ N
- if (result == 0) {
, n8 O% |1 k- g$ A2 {3 M - message = "对不起,添加留言不成功,请您重新输入!";4 L3 n3 S# Q. P( ?; g2 s
- } else {
0 m7 _1 E# T- ^9 `* v' ?5 H - message = "祝贺您,成功添加留言。";% \, {" Y( \6 E
- }" I5 L! }7 p, o: o7 i& F4 H+ N! h
- }
3 L, y# C9 H9 [& p. c7 b* s - request.setAttribute("message", message);) S! ^2 Z, g) O' x, M# E k
- request.getRequestDispatcher("/addResult.jsp").forward(request, response);* B7 p( \% K7 S; R+ {4 e3 O
- }
* X' d7 I! p2 U - }% C& ]7 N9 S& E& y" c. ~, H
复制代码- package com.cjg.servlet;
% V2 o' d5 b5 v - import java.io.IOException;4 l1 V6 k" Q2 p6 a& a |' `9 k, y: Y
- import java.util.List;; K2 W5 S# a" g: a! ^. t! o! F
- import javax.servlet.ServletException;3 A0 G' u2 Z/ W( z4 O3 p8 z
- import javax.servlet.http.*;" F; f" i4 [- v7 l
- import org.apache.commons.dbutils.handlers.BeanListHandler;2 b* \1 d E+ E" G# s& j
! U) j+ q1 C' b. F9 U3 _; w- import com.cjg.tool.OracleTool;
+ `. A. A* k% v& r' S4 x# W. n# z0 [4 | - 3 q0 z+ k3 n2 }! u/ ]5 p
- public class ManageServlet extends HttpServlet {
/ B) h4 C. C3 u, h. j6 ~ - OracleTool db = null;
! E& X y9 K" e& s" ` - private static final long serialVersionUID = 204655027689309554L;2 w, A1 b1 L8 [3 T& h7 N
+ l+ S% I: t' Y2 M- public void edit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {$ _& C: `" C; ~( u6 ~' G* `4 s& K
- String params[] = { request.getParameter("id") };
! W* u( x) n" P6 S( Y$ D* y - String sql = "select * from guestbook where id=?";5 B* V2 \& @/ b7 Q1 M
- List list = (List) db.query(sql, params, new BeanListHandler(MessageBook.class));3 ~. r; b- R7 K b9 S
- request.setAttribute("guestbook.admin.edit", list.get(0)); n( C+ G- I- U# m7 \
- request.getRequestDispatcher("/admin/secure/edit.jsp").forward(request, response);
9 g: i6 j: w- V1 ]; s7 h$ e* {6 y - }
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X/ D9 M6 G* i" \9 X) I* h- public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
0 u/ H+ w7 Z3 s) |( v( _) D- M - String params[] = { request.getParameter("name"), request.getParameter("email"), request.getParameter("phone"),
- C2 h& Z% p3 V1 l: B - request.getParameter("title"), request.getParameter("content"), request.getParameter("id") }; 0 r2 B* }" F1 ?1 h( d
- int i = db.update("update guestbook set name=?,email=?,phone=?,title=? ,content=? where id=?", params);
& H+ j I$ q6 u p' w" a - if (i == 1) {$ o/ ]. q$ `: J. H& g+ u
- request.setAttribute("guestbook.admin.update.message", "更新成功!");7 P1 n* {, X5 c7 A4 w4 e1 F
- MessageBook gb = new MessageBook();5 B' [3 O3 K5 _: N7 {
- gb.setId(Integer.parseInt(request.getParameter("id")));
0 u( g& b3 k4 t. `* n - gb.setName(request.getParameter("name"));
# f r1 \6 y; F2 b5 O8 q/ {; Y( X8 y - gb.setEmail(request.getParameter("email"));
3 w# Q( R, _/ D) K% `' m% k& A& F/ w - gb.setPhone(request.getParameter("phone"));
7 S$ r0 i# Z5 a X) s3 Q - gb.setTitle(request.getParameter("title"));
) J! _; p8 L; U o - gb.setContent(request.getParameter("content")); o$ s$ ~& u; `# a
- request.setAttribute("guestbook.admin.edit", gb);& W$ S, i1 ]6 }
- } else {
: `6 d0 O9 M! \& J' d+ W2 p - request.setAttribute("guestbook.admin.update.message", "更新失败!");
$ P8 u: N: V2 _# d - } request.getRequestDispatcher("/admin/secure/updateResult.jsp").forward(request, response);
+ o) M! _% h" a _ - }
- F* W) l$ N! {; U - , D3 Z: Z d0 n B, n% i1 N
- public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
6 D4 p$ A. K0 {* O - String params[] = { request.getParameter("id") };
2 U8 A; z2 G4 L2 b+ e& o4 {7 q - int i = db.update("delete from guestbook where id=?", params);7 B, z) b/ l: h7 J. e$ M6 f6 O! T
- if (i == 1) {% W& `4 k) ^/ P9 U" m5 F
- request.setAttribute("guestbook.admin.delete.message", "删除成功");' {. c" a% M$ k: G
- } else {+ W4 ^+ M+ }, K' \2 ^% ~9 d
- request.setAttribute("guestbook.admin.delete.message", "删除失败");
/ W4 i3 D# |2 x - } request.getRequestDispatcher("/admin/secure/deleteResult.jsp").forward(request, response);
- y0 Y0 `4 f. M8 ^/ R3 v, A - }2 K- X- D* N# {, u" f1 a
1 B& s4 b$ ]7 G3 q7 |$ W$ V3 o- public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
6 }% g$ H* n% n( k9 {6 R0 F - List list = (List) db.query("select id,name,title from guestbook order by id desc", null, new BeanListHandler(
4 j8 t$ x4 F; v0 |( L - MessageBook.class));& G+ Y8 ?+ E6 k' V @
- request.setAttribute("guestbook.admin.list", list);) t5 y5 H; a- f6 m
- request.getRequestDispatcher("/admin/secure/list.jsp").forward(request, response);
/ }: a3 K& h+ `& q - }
* ]5 L% i/ K; K) _, D8 b# }
2 ?. l1 [0 N4 S+ v- public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
; ` e4 g, z' |& j0 y - db = new OracleTool("java:/comp/env/jdbc/oracleds");
9 E" m' K! Q8 I5 b8 N5 t5 S - db.init();
7 b+ c& O- s7 Q* h) d" a - String method = request.getParameter("q");; Y, o, N _' Q0 [
- if(method==null){
/ v8 c; c% h) w - method="list";% t2 k: F- p+ y7 `9 r' f" y) K
- }
1 V* M1 K4 }) e z0 f" y3 m - if (method.equals("edit")) {
% ?: B- l% H- K/ x+ n2 A8 ]0 P - edit(request, response);
8 L! Q( S( n. \ - } else if (method.equals("delete")) {
! `- b! F+ }( n5 {! T - delete(request, response);
& |; N1 I" T. @( S: _# T - } else if (method.equals("update")) {8 k# s9 y: a& O' z, k8 _+ z
- update(request, response);9 t* |. M- N( l! [! m2 o3 f, u
- } else {
/ c/ e! G+ e1 j! I- g - list(request, response);
- |5 {* G4 f7 z% A. |* w - }8 @! k) X$ G/ ]6 n0 i: l5 S
- }( [: v7 Q; r3 D4 [8 ^2 i
~; r @. b" d# _- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { r4 B# D2 \4 b/ N
- doGet(request, response);
{3 L, c( S+ `# h4 t/ d. f - }. \. I; C3 l/ Z* G+ s8 B% Y
- }0 ^ p: s& ^, K I: j: k$ _4 n8 p; A
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