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代码案例:" l7 T7 ^& _2 E$ g" ], M
- package com.cjg.servlet;
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. ^7 H k& P! t5 A8 Q" x7 k8 Q- import java.io.IOException;$ ]3 S3 q: k) Q# X
- import java.text.SimpleDateFormat;& t% S6 a, t# Q: W
- import javax.servlet.ServletException;
' I' \% m" {: s% d3 _+ x1 C8 x - import javax.servlet.http.*;
$ L3 d% r4 M. z: M. }+ l/ _ - import com.cjg.tool.*;
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- public class AddMessageServlet extends HttpServlet {
4 a! |2 L3 [8 |+ s - private static final long serialVersionUID = -8349454122547148005L;
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- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
% ^! h% s/ c! O- Y, ~ - String sql = "insert into guestbook (id,name,email,phone,title,content,time) values(gb_seq.nextval,?,?,?,?,?,?)";
- M5 |3 M' |7 p( g: ^ - int result = 0;" P/ L6 S8 q+ w
- String message = "";% g0 t5 {0 o) ^" ?" l
- String name = request.getParameter("name");" \! N* [& P' N7 j! [+ G
- String title = request.getParameter("title");
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- if (StringTool.validateNull(name)) {1 g. `" E5 V8 ^3 B
- message = "对不起,姓名不能为空,请您重新输入!<br>";
- R( H3 T# J6 p% E1 E" { - } else if (StringTool.validateNull(title)) {0 |" w' m9 |6 a) j
- message = "对不起,主题不能为空,请您重新输入!<br>";- K3 q5 F# V6 s' ^5 g0 o g" `! u
- } else {
$ y9 m0 g) u: R2 o; B# b* u - SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");! D9 K7 N6 x7 y* c
- String param[] = { StringTool.filterHtml(name), StringTool.filterHtml(request.getParameter("email")),$ {! W$ W- f" ~" S# W
- StringTool.filterHtml(request.getParameter("phone")), StringTool.filterHtml(title),0 v, Q0 u6 C |) W5 {
- request.getParameter("content"), sdf.format(new java.util.Date()) };" q$ l9 X5 M% `) w. H- [; j+ O) ]
- OracleTool db = new OracleTool("java:/comp/env/jdbc/oracleds");1 m7 d) a" N6 z; M
- db.init();* z$ a$ e1 L4 b0 J+ x
- result = db.update(sql, param);1 H/ w* d J0 c- a0 w# m# M0 e7 e& l9 e
- if (result == 0) {5 B# G ~8 `" \# g$ b e
- message = "对不起,添加留言不成功,请您重新输入!";2 @% I5 x" `; q+ C S
- } else {$ l0 V8 p, U2 O; T2 n
- message = "祝贺您,成功添加留言。";9 e" c8 A4 z: J* K: d* d# |6 Q
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- request.setAttribute("message", message);
% j* b5 v0 z$ m8 B* c9 H4 m - request.getRequestDispatcher("/addResult.jsp").forward(request, response);
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复制代码- package com.cjg.servlet; v. _9 @7 {& ?% j! \4 b
- import java.io.IOException;4 u3 S- l6 u- W6 v" l
- import java.util.List;
/ k: ^6 K b) J5 ?8 S+ C, g - import javax.servlet.ServletException;
0 _7 [9 o$ |3 {2 `! n. K - import javax.servlet.http.*;+ {( L+ f7 q3 }- Y' T; u& t. J
- import org.apache.commons.dbutils.handlers.BeanListHandler;
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* n5 f, O; V6 c& k. J/ u- import com.cjg.tool.OracleTool;
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" F' i/ g0 u7 N8 S/ k) m' ^3 ]" K1 u- public class ManageServlet extends HttpServlet {
$ c% R1 m1 G8 J: ^ - OracleTool db = null;& H- u/ j# c* f9 W; u6 L0 @* |
- private static final long serialVersionUID = 204655027689309554L;
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- public void edit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {) _1 O# }3 b, a) Q% c" m
- String params[] = { request.getParameter("id") }; ( h& L4 o( k$ b4 s
- String sql = "select * from guestbook where id=?";
- ^: s* r4 }+ e7 M v! h, l, Z - List list = (List) db.query(sql, params, new BeanListHandler(MessageBook.class));
! R6 S/ r: ^+ B5 Q$ Q - request.setAttribute("guestbook.admin.edit", list.get(0));
2 y5 e8 A' k$ P* S1 j$ Q - request.getRequestDispatcher("/admin/secure/edit.jsp").forward(request, response);, y" d8 I S/ Y! K2 p& u
- }
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, r; E! h: W& @5 A- public void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
/ V! O$ [1 J5 [ - String params[] = { request.getParameter("name"), request.getParameter("email"), request.getParameter("phone"),8 B- f, T) e0 A. p
- request.getParameter("title"), request.getParameter("content"), request.getParameter("id") }; ; X5 b3 y c5 |$ P! D8 X/ l
- int i = db.update("update guestbook set name=?,email=?,phone=?,title=? ,content=? where id=?", params);
9 I1 R" K( {/ h* A* X - if (i == 1) { W+ K; T# G3 v4 t* L K
- request.setAttribute("guestbook.admin.update.message", "更新成功!");2 | P; Z5 r; @
- MessageBook gb = new MessageBook();
/ z, ]. Y# ?$ i. J - gb.setId(Integer.parseInt(request.getParameter("id")));. N2 W. N6 b, d& D. U* Y' }, F) [
- gb.setName(request.getParameter("name"));6 ?( i Y$ w* ~$ r
- gb.setEmail(request.getParameter("email"));
: s- N( y: ?! l+ Y9 W( o5 o - gb.setPhone(request.getParameter("phone"));
( `4 U+ B( u1 K. }0 Q - gb.setTitle(request.getParameter("title"));0 Q. i, F; m- p9 Y/ X/ R
- gb.setContent(request.getParameter("content"));
s* U8 R% I+ m: s3 s9 F - request.setAttribute("guestbook.admin.edit", gb);
9 Q! g) I, s" J. A& W( e - } else {9 a5 M; _1 b- W$ z5 o: T8 s) N- Q/ X
- request.setAttribute("guestbook.admin.update.message", "更新失败!");
; ^" d2 S* t% D+ S/ c+ ^& a - } request.getRequestDispatcher("/admin/secure/updateResult.jsp").forward(request, response);
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$ S" @8 z& c) N- w: T# V. T- public void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {! W6 Y: c+ D3 |: @0 t: F1 w
- String params[] = { request.getParameter("id") };
y& \: [' N5 Y) c - int i = db.update("delete from guestbook where id=?", params);
! }$ n2 x3 {1 {) @8 s& Z1 [ - if (i == 1) {$ g* p4 k# G8 m6 f S
- request.setAttribute("guestbook.admin.delete.message", "删除成功");
6 y) O( g) W2 V" ~( w - } else {- z7 s/ o- D$ u& i
- request.setAttribute("guestbook.admin.delete.message", "删除失败");- q2 D8 c& W* E o. }* `
- } request.getRequestDispatcher("/admin/secure/deleteResult.jsp").forward(request, response);0 ~) @8 p( ?* K2 F2 h
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+ `- Y) m: v/ v) {' l5 v$ H0 r- public void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {+ H0 K+ a V6 Z/ V* i+ Y! @
- List list = (List) db.query("select id,name,title from guestbook order by id desc", null, new BeanListHandler(
/ X2 x9 R, A1 i* K - MessageBook.class));
8 J: b% C& Z! m - request.setAttribute("guestbook.admin.list", list); Z1 l3 X, d% N$ J* ?# i
- request.getRequestDispatcher("/admin/secure/list.jsp").forward(request, response);( A% k& N! \$ @" I
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- public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
( s# m6 V& x5 P9 L4 q& x( T - db = new OracleTool("java:/comp/env/jdbc/oracleds");
! O& {$ b# E( I' F9 e ` - db.init();
0 G! B% j; W6 g: r+ i - String method = request.getParameter("q");
: }+ g0 \- O- m' f - if(method==null){% O, e0 S3 D B5 I5 M3 u, z
- method="list";( B5 K2 ~3 T3 f
- }
9 y+ C: {. W- }4 ` - if (method.equals("edit")) {
* I# ^: Z; i# A/ A! t# t - edit(request, response);( @$ e# x+ H) y D& L; \7 f
- } else if (method.equals("delete")) {
$ B, H. p C: w9 w3 m3 f) D - delete(request, response);
2 c# w W# Y; Z3 ? - } else if (method.equals("update")) {
! A5 M& m8 u4 [3 z - update(request, response);9 U J5 T; o; L# p0 o* G1 q2 ]. i
- } else {
, J! I( ~0 q; Y ~( S' X - list(request, response);2 T' i. R( F- H4 q7 C
- }
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- 3 I( K4 S. b2 t" u7 F) }
- public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {. b# G' ?4 _4 V& o* s
- doGet(request, response);# a |8 y9 i5 \+ @" i+ `
- }: ]1 T7 `% z+ B6 N) i( O, e
- }
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