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jsp留言板源代码二: 给jsp初学者.
摘要:作者:precom(皮蛋)2000.12.10guestbook.jsp===========================张家界电话黄页...

作 者: precom (皮蛋) 2000.12.10

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">

<>

</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> n"+

" <> n"+

" </SCRIPT> ";

out.print(ljs);

%>

<%

//留言板界面首部

String ltop=" <DIV align=center> n"+

" <CENTER> n"+

" <FORM action=guestbook.jsp method=post name=frmsearch> n"+

" <INPUT name=gbname type=hidden value=cnzjj_gt> n"+

" <TABLE align=center border=0 cellSpacing=1 width="95%"> n"+

" <TBODY> n"+

" <TR> n"+

" <TD bgColor=#336699 colSpan=2 width="100%"> n"+

" <P align=center><FONT color=#ffffff face=楷体_GB2312 n"+

" size=5>欢迎远方的朋友来张家界旅游观光</FONT></P></TD></TR> n"

+

" <TR bgColor=#6699cc> n"+

" <TD align=left noWrap width="50%">主页: <A n"+

" href="http://www.zj.hn.cn" target=_blank><FONT n"+

" color=#ffffff>张家界旅游</FONT></A> 管理员: <A n"

+

" href="mailto:dzx@mail.zj.hn.cninfo.net"><FONT color=#ffffff>

一民</FONT></A> n"+

" >><A n"+

" href="http://www.zj.hn.cn "><FONT n"+

" color=#ffffff>管理</FONT></A> >><A n"+

" href=" http://www.zj.hn.cn "><FONT n"+

" color=#ffffff>申请</FONT></A> </TD> n"+

" <TD align=right width="50%"><SELECT class=ourfont name=range s

ize=1> n"+

" <OPTION selected value=0>按主题</OPTION> <OPTION value=1>按内

容</OPTION> n"+

" <OPTION value=2>按作者</OPTION> <OPTION value=3>按日期</OPTI

ON> <OPTION n"+

" value=4>按主题&内容</OPTION></SELECT> <INPUT name=findst

r> <INPUT name=search onclick="return ValidSearch()" type=submit val

ue="搜 索"> n"+

" </TD></TR></TBODY></TABLE></FORM> n"+

" <HR align=center noShade SIZE=1 width="95%"> n"+

" </CENTER></div> ";

out.print(ltop);

%>

<%

//显示最近时间发表的一页留言

countsql="select count(lw_title) from guestbook "+lwhere;

inqsql ="select lw_title,answer_num,click_num,lw_author,lw_time,expres

sion,"+

" author_email,lw_class1,lw_class2 from guestbook "+lwhere+" o

rder by lw_time desc" ;

if(pages>0)

{

try {

try{

ResultSet rcount=testInq.executeQuery(countsql);

if(rcount.next())

{

count = rcount.getInt(1);

}

rcount.close();

} catch (Exception el1) { out.println("count record error

: "+el1+"<br>" );

out.println(countsql);

}

totalpages=(int)(count/pagesize);

if(count>totalpages*pagesize) totalpages++;

st=""+

" <TABLE align=center border=0 cellPadding=0 cellSpacing=

0 width="95%"> "+

" <TBODY> <TR> <TD align=middle bgColor=#97badd width="1

00%"><FONT color=#ff0000>"+

" 共 "+totalpages+" 页,"+count+"

条. "+" 当前页: "+pages+

" </FONT></TD></TR></TBODY></TABLE><BR> ";

out.print(st);

//out.print(" 共 "+totalpages+" 页,"+

count+" 条. "+" 当前页: "+pages+"<br>");

st=" <center> "+

" <TABLE border=0 cellPadding=2 cellSpacing=1 width="95%"> "+

" <TBODY> "+

" <TR> "+

" <TD align=middle bgColor=#6699cc width="55%"><FONT "+

" color=#ffffff>留言主题</FONT></TD> "+

" <TD align=middle bgColor=#6699cc width=50><FONT "+

" color=#ffffff>回应数</FONT></TD> "+

" <TD align=middle bgColor=#6699cc width=40><FONT "+

" color=#ffffff>点击数</FONT></TD> "+

" <TD align=middle bgColor=#6699cc width=100><FONT "+

" color=#ffffff>作者名</FONT></TD> "+

" <TD align=middle bgColor=#6699cc width=140><FONT "+

" color=#ffffff>发表/回应时间</FONT></TD></TR> ";

out.print(st);

if(count > 0 )

{

ResultSet rs = testInq.executeQuery(inqsql);

ResultSetMetaData metaData = rs.getMetaData();

int i;

// 跳过pages -1 页,使cursor指向pages并准备显示

for(i=1;i<=(pages - 1)*pagesize;i++) rs.next();

//显示第pages页开始

String linestr="";

for(i=1;i<=pagesize;i++)

if(rs.next())

{

lw_title=rs.getString("lw_title");

answer_num=rs.getInt("answer_num");

click_num=rs.getInt("click_num");

lw_author=rs.getString("lw_author");

lw_time=rs.getString("lw_time");

st=lw_time.substring(0,4)+"-"+lw_time.substring(4,6)+"-"

+lw_time.substring(6,8)+":"+

lw_time.substring(8,10)+":"+lw_time.substring(10,12)+

":"+lw_time.substring(12,14);

lw_ico=rs.getString("expression");

author_email=rs.getString("author_email");

lw_class1=rs.getString("lw_class1");

lw_class2=rs.getString("lw_class2");

llink="reply.jsp?lw_class1="+lw_class1+"&lw_class2="+lw_

class2+"&zt_time="+lw_time+

"&zt_author="+author_email;

linestr=" <TR bgColor=#d5e8fd> n" +

" <TD bgColor=#d5e8fd><IMG src=""+lw_ico+".gif

"><A "+

" href=""+llink+" ">"+lw_title+"</A></TD> "+

" <TD align=middle>["+answer_num+"]</TD>"+

" <TD align=middle>"+click_num+"</TD>"+

" <TD align=middle><A href="mailto:"+author_ema

il+"">"+lw_author+"</A></TD>"+

" <TD align=middle>"+st+"</TD></TR>";

out.println(linestr);

}

rs.close();

//显示第pages页结束

st="</TBODY></TABLE><BR>";

out.print(st);

int iFirst=1,iLast=totalpages,iPre,iNext;

if(pages<=1) iPre=1;

else iPre=pages - 1;

if(pages>=totalpages) iNext=totalpages;

else iNext=pages + 1;

int n=(int)(count/pagesize);

if(n*pagesize<count) n++;

if(n>1)

{

//for(i=1;i<=n;i++) out.print("<a href=inquire.jsp?pages=

"+i+">"+i+" </a>");

//out.print("<HR align=center noShade SIZE=1 width="95%

">");

String lt1="返回主页",lt2="第一页",lt3="上一页",lt4="下一

页",lt5="最后一页",lt6="";

lt6="<a href=http://www.zj.hn.cn>"+ lt1 + " </

a>"+

lurlt + "pages="+iFirst+"><FONT color=red>"+lt2+"&nbs

p; </a>"+

lurlt + "pages="+iPre+"><FONT color=red>"+lt3+"

</a>" +

lurlt + "pages="+iNext+"><FONT color=red>"+lt4+"

; </a>" +

lurlt + "pages="+iLast+"><FONT color=red>"+lt5+"

; </a>";

st=""+

" <TABLE align=center border=0 cellPadding=0 cellSpacing=

0 width="95%"> "+

" <TBODY> <TR> <TD align=middle bgColor=#97badd width="1

00%"><FONT color=#ff0000>"+

lt6+

" </FONT></TD></TR></TBODY></TABLE><BR> ";

out.print(st);

}

}

} catch (Exception e) { out.println("error: "+e); }

}

%>

<%

//留言板界面尾部

String lbottom="";

lbottom=lbottom+

" n"+

" <FORM action=guestbook.jsp method=post name=sign> n"+

" <INPUT name=gbname type=hidden value=cnzjj_gt> n"+

" <INPUT name=pages type=hidden value=1> n"+

" <TABLE bgColor=#d5e8fd border=0 cellSpacing=1 width="95%"> n"+

" <TBODY> n"+

" <TR> n"+

" <TD align=middle bgColor=#e6e6fa colSpan=2 noWrap><STRONG><FONT

color=blue n"+

" face=楷体_GB2312 size=5>发 表 意 见</FONT></STRONG> &nbs

p; [加*的内容必须填写] </TD></TR> n"+

" <TR> n"+

" <TD noWrap width="45%"> n"+

" <DIV align=left> n"+

" <TABLE bgColor=#d5e8fd border=0 cellSpacing=1 width="100%">

n"+

" <TBODY> n"+

" <TR> n"+

" <TD noWrap width="100%">*留言主题:<INPUT maxLength=40 n

ame=lw_title n"+

" size=36></TD></TR> n"+

" <TR> n"+

" <TD noWrap width="100%">*网上大名:<INPUT maxLength=18 n

ame=lw_author n"+

" size=36></TD></TR> n"+

" <TR> n"+

" <TD noWrap width="100%"> 主页标题:<INPUT maxLength

=40 name=pagetitle n"+

" size=36></TD></TR> n"+

" <TR> n"+

" <TD noWrap width="100%"> 主页地址:<INPUT maxLength

=255 name=author_http n"+

" size=36></TD></TR> n"+

" <TR> n"+

" <TD noWrap width="100%">*电子邮件:<INPUT maxLength=40 n

ame=author_email n"+

" size=36></TD></TR></TBODY></TABLE></DIV></TD> n"+

" <TD noWrap vAlign=top width="55%"> n"+

" <DIV align=left> n"+

" <TABLE bgColor=#b6d7fc border=0 cellSpacing=1 width="100%">

n"+

" <TBODY> n"+

" <TR> n"+

" <TD width="100%">请在下面填写你的留言:</TD></TR> n"+

" <TR> n"+

" <TD width="100%"><TEXTAREA cols=50 name=lw_content rows=

7></TEXTAREA></TD></TR></TBODY></TABLE></DIV></TD></TR> n"+

" <TR> n"+

" <TD bgColor=#fbf7ea colSpan=2 noWrap>表情n"+

" <INPUT name=gifface type=radio value=1 checked><IMG n"+

" alt="1.gif (152 bytes)" height=15 src="1.gif" width=15> <I

NPUT n"+

" name=gifface type=radio value=2><IMG alt="2.gif (174 bytes)"

height=15 n"+

" src="2.gif" width=15> <INPUT name=gifface type=radio value=3

><IMG n"+

" alt="3.gif (147 bytes)" height=15 src="3.gif" width=15> <I

NPUT n"+

" name=gifface type=radio value=4><IMG alt="4.gif (172 bytes)"

height=15 n"+

" src="4.gif" width=15> <INPUT name=gifface type=radio value=5

><IMG n"+

" alt="5.gif (118 bytes)" height=15 src="5.gif" width=15> <I

NPUT n"+

" name=gifface type=radio value=6><IMG alt="6.gif (180 bytes)"

height=15 n"+

" src="6.gif" width=15> <INPUT name=gifface type=radio value=7

><IMG n"+

" alt="7.gif (180 bytes)" height=15 src="7.gif" width=15> <I

NPUT n"+

" name=gifface type=radio value=8><IMG alt="8.gif (96 bytes)"

height=15 n"+

" src="8.gif" width=15> <INPUT name=gifface type=radio value=9

><IMG n"+

" alt="9.gif (162 bytes)" height=15 src="9.gif" width=15> <I

NPUT n"+

" name=gifface type=radio value=10><IMG alt="10.gif (113 bytes)

" height=15 n"+

" src="10.gif" width=15> <INPUT name=gifface type=radio value=

11><IMG n"+

" alt="11.gif (93 bytes)" height=15 src="11.gif" width=15> <

INPUT n"+

" name=gifface type=radio value=12> <IMG alt="12.gif (149 bytes

)" height=14 n"+

" src="12.gif" width=15> n"+

" <INPUT n"+

" name=gifface type=radio value=13> <IMG alt="13.gif (149 bytes

)" height=14 n"+

" src="13.gif" width=15> n"+

" <INPUT n"+

" name=gifface type=radio value=14> <IMG alt="14.gif (149 bytes

)" height=14 n"+

" src="14.gif" width=15> n"+

" <INPUT n"+

" name=gifface type=radio value=15> <IMG alt="15.gif (149 bytes

)" height=14 n"+

" src="15.gif" width=15> n"+

" <INPUT n"+

" name=gifface type=radio value=16> <IMG alt="16.gif (149 bytes

)" height=14 n"+

" src="16.gif" width=15> </TD> n"+

" </TR> n"+

" <TR> n"+

" <TD align=middle colSpan=2 noWrap><INPUT name=cmdGO onclick="re

turn ValidInput()" type=submit value="提 交"> n"+

" <INPUT name=cmdPrev onclick="return ValidInput()" type=submit valu

e="预 览"> n"+

" <INPUT name=cmdCancel type=reset value="重 写"> <INPU

T name=cmdBack onclick=javascript:history.go(-1) type=button value="返

回"> n"+

" </TD></TR></TBODY></TABLE></FORM></CENTER></DIV> ";

out.print(lbottom);

%>

</body></html>

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