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java留言板源代码二: 给java初学者.

发布时间：2023-01-15 03:13:17 来源：互联网

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人生就像蒲公英，看似自由，却身不由己。有些事，不是不在意，而是在意了又能怎样，自己尽力了就好。

作者: precom (皮蛋) 2000.12.10guestbook.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 rel="nofollow noopener noreferrer" 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"+ " rel="nofollow noopener noreferrer" href=\&;http://www.zj.hn.cn\&; target=_blank><FONT \n"+ " color=#ffffff>张家界旅游</FONT></A> 管理员: <A \n" + " rel="nofollow noopener noreferrer" href=\&;mailto:dzx@mail.zj.hn.cninfo.net\&;><FONT color=#ffffff> 一民</FONT></A> \n"+ " >><A \n"+ " rel="nofollow noopener noreferrer" href=\&;http://www.zj.hn.cn \&;><FONT \n"+ " color=#ffffff>管理</FONT></A> >><A \n"+ " rel="nofollow noopener noreferrer" 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 "+ " rel="nofollow noopener noreferrer" href=\&;"+llink+" \&;>"+lw_title+"</A></TD> "+ " <TD align=middle>["+answer_num+"]</TD>"+ " <TD align=middle>"+click_num+"</TD>"+ " <TD align=middle><A rel="nofollow noopener noreferrer" 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 rel="nofollow noopener noreferrer" 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 rel="nofollow noopener noreferrer" 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>

以上就是javascriptp留言板源代码二: 给javascriptp初学者.。“日事日毕，日清日高”的OEC管理模式，其含义是全方位地对每个人、每一天所做的每件事进行控制和清理，做到“日清日毕，日清日高”，每天的工作每天完成，而且每天的工作质量都有一点儿（1%）的提高。（日事日毕，解决基础管理问题；日清日高，解决速度问题）。更多关于javascriptp留言板源代码二: 给javascriptp初学者.请关注haodaima.com其它相关文章！

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