一段用Java编写的留言板源代码(一)
一.oracle数据表创建.
create table guestbook (
lw_title varchar2(100) not null, --留言主题
lw_author varchar2(20) not null, --网上大名 pk
author_http varchar2(40) , --主页地址
author_email varchar2(40) not null,--电子信箱 pk
expression varchar2(2) not null,--表情
lw_time varchar2(14) not null,--发表回应时间
answer_num number(3) not null,--回应数
click_num number(4) not null,--点击数
author_ip varchar2(16) ,--来源ip
lw_class1 varchar2(10) not null,--留言板大类 pk
lw_class2 varchar2(20) not null,--论坛栏目 pk
lw_type varchar2(1) not null,--留言类别,即是否为主贴
zt_time varchar2(14) ,--主贴时间
zt_author varchar2(40) ,--主贴email
lw_content varchar2(4000) ,--内容
constraint pk_guestbook primary key(lw_class1,lw_class2,lw
_time,lw_author)
) storage (initial 5M next 5M pctincrease 1);
二.guestbook.jsp
===========================
< html >< head >
< META content="text/html; charset=gb2312 " http-equiv=Content-Type >
< title >张家界电话黄页(网上114)< /title >< /head >
< style type="text/css" >
< !--
BODY { FONT-FAMILY: "宋体","Arial Narrow", "Times New Roman"; FONT-SI
ZE: 9pt }
.p1 { FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZ
E: 12pt }
A:link { COLOR: #00793d; TEXT-DECORATION: none }
A:visited { TEXT-DECORATION: none }
A:hover { TEXT-DECORATION: underline}
TD { FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZE
: 9pt }
.p2 { FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZ
E: 9pt; LINE-HEIGHT: 150% }
.p3 { FONT-FAMILY: "宋体", "Arial Narrow", "Times New Roman"; FONT-SIZ
E: 9pt; LINE-HEIGHT: 120% }
-- >
< /style >
< body >
< %@ page contentType="text/html; charset=GB2312" % >
< %@ page language="java" import="java.sql.*" % >
< jsp:useBean id="testInq" scope="page" class="ymbean.opDb" / >
< %
int pages=1;
int pagesize=10;
int count=0;
int totalpages=0;
String countsql="",inqsql="",lwhere="",insertsql="",st="";
String lw_title="\",lw_author="",pagetitle="\",author_http="",author_e
mail="",lw_ico="",
lw_content="",lw_class1="";
String author_ip="",lw_time="",lw_class2="",lw_type="",zt_time="",zt
_author="";
int answer_num=0,click_num=0;
int inquire_item=1;
String inquire_itemt="",inquire_value="";
String lurlt="< a href=guestbook.jsp?",llink="";
lwhere=" where lw_type=z "; //只显示主贴
/*
Enumeration e = request.getParameterNames();
while (e.hasMoreElements()) {
String name = (String) e.nextElement();
*/
try{
//取显示的页页序数
pages = new Integer(request.getParameter("pages")).intValue();
} catch (Exception e) {}
try{
//取查询参数
inquire_item=new Integer(request.getParameter("range")).intValu
e();
inquire_value=new String(request.getParameter("findstr").getByt
es("ISO8859_1"));
if(inquire_item==0) inquire_itemt="lw_title";
else if(inquire_item==1) inquire_itemt="lw_content";
else if(inquire_item==2) inquire_itemt="lw_author";
else if(inquire_item==3) inquire_itemt="lw_time";
else if(inquire_item==4) inquire_itemt="lw_title";
lwhere=lwhere+" and "+inquire_itemt+" like %"+inquire_value+"%
";
lurlt=lurlt+"range="+inquire_item+"&findstr="+inquire_value+"&"
;
} catch (Exception e) {}
try{
//取得参数 留言内容
lw_class1=new String(request.getParameter("gbname").getBytes("ISO885
9_1"));
lw_title=new String(request.getParameter("lw_title").getBytes("ISO88
59_1"));
lw_author=new String(request.getParameter("lw_author").getBytes("ISO
8859_1"));
pagetitle=new String(request.getParameter("pagetitle").getBytes("ISO
8859_1"));
author_http=new String(request.getParameter("author_http").getBytes(
"ISO8859_1"));
author_email=new String(request.getParameter("author_email").getByte
s("ISO8859_1"));
lw_ico=request.getParameter("gifface");
lw_content=new String(request.getParameter("lw_content").getBytes("I
SO8859_1"));
String requestMethod=request.getMethod();
requestMethod=requestMethod.toUpperCase();
if(requestMethod.indexOf("POST")< 0)
{ out.print("非法操作!");
return;
}
//形成其他数据项
author_ip=request.getRemoteAddr() ;
lw_time=testInq.getCurrentDate("yyyyMMddHHmmss");
lw_class2="2";
lw_type=""+"z"; //主贴
zt_time=lw_time;
zt_author=lw_author;
answer_num=0;
click_num=0;
//================
st=",";
//保证留言所有数据项的长度在正常范围内
if(lw_title.length() >50) lw_title=lw_title.substring(0,50);
if(lw_author.length() >20) lw_author=lw_author.substring(0,20);
if(author_http.length() >40) author_http=author_http.substring(0,40);
if(author_email.length() >50) author_email=author_email.substring(0,4
0);
if(lw_content.length() >4000) lw_content=lw_content.substring(0,4000)
;
insertsql="insert into guestbook values("+lw_title+st+lw_author+st+
author_http+st+
author_email+st+lw_ico+st+lw_time+","+answer_num+","+cli
ck_num+","+
author_ip+st+lw_class1+st+lw_class2+st+lw_type+st+zt_time
+st+zt_author+st+
lw_content+")";
//out.print(insertsql);
//插入留言
try{
String lmsg=testInq.executeUpdate(insertsql);
if(lmsg.indexOf("executeUpdate ok")< 0)
out.print("lmsg="+lmsg);
}catch (Exception e) { out.print("错误:"+e);}
} catch (Exception e) {}
% >
< %
//验证留言输入项合法性的javascript
String ljs=" < SCRIPT language=JavaScript > "+
" < !-- "+
" function ValidInput() "+
" {if(document.sign.lw_author.value=="") "+
" {alert("请填写您的大名。"); "+
" document.sign.lw_author.focus(); "+
" return false;} "+
" if(document.sign.lw_title.value=="") "+
" {alert("请填写留言主题。"); "+
" document.sign.lw_title.focus(); "+
" return false;} "+
" if (document.sign.author_email.value!="") "+
" { if ((document.sign.author_email.value.indexOf("@")< 0)//(document
.sign.author_email.value.indexOf(":")!=-1)) "+
" {alert("您填写的EMail无效，请填写一个有效的Email!"); "+
" document.sign.author_emaill.focus(); "+
" return false; "+
" } "+
" } "+
" return true; "+
" } "+
" function ValidSearch() "+
" { if(document.frmsearch.findstr.value=="") "+
" {alert("不能搜索空串！"); "+
" document.frmsearch.findstr.focus(); "+
" return false;} "+
" } "+
" //-- > "+
" < /SCRIPT > ";
out.print(ljs);
% >
< %
//留言板界面首部
String ltop=" < DIV align=center > "+
" < CENTER > "+
" < FORM action=guestbook.jsp method=post name=frmsearch > "+
" < INPUT name=gbname type=hidden value=cnzjj_gt > "+
" < TABLE align=center border=0 cellSpacing=1 width="95%" > "+
" < TBODY > "+
" < TR > "+
" < TD bgColor=#336699 colSpan=2 width="100%" &
补充：软件开发 , Java ,
