java网页留言板源代码 JAVA留言板

java js留言板

package com.zhh.test;

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import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

public class JB extends JFrame implements ActionListener

{

private JTextField Input1,Input2,Input3;

private JButton btnOK;

private static final String OK="计算";

private JTextField ShowAnswer;

public JB(String strTitle)

{

super(strTitle);

Container c=getContentPane();

c.setLayout(new FlowLayout());

Input1=new JTextField(4);

Input2=new JTextField(4);

Input3=new JTextField(4);

ShowAnswer=new JTextField(4);

btnOK=new JButton(OK);

c.add(new JLabel("请输入待计算的两个数据:"));

c.add(Input1);

c.add(Input2);

c.add(new JLabel("请输入计算符(1 for + ,2 for - ,3 for * ,4 for / ):"));

c.add(Input3);

c.add(new JLabel("计算结果："));

c.add(ShowAnswer);

c.add(btnOK);

btnOK.addActionListener(this);

this.addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

System.exit(0);

}

});

this.setSize(310,100);

this.setVisible(true);

}

public static void main(String[] args)

{

new JB("JButtonTest Testing!!!");

}

public void actionPerformed(ActionEvent e){

int num4 = 0;

int num1=Integer.parseInt(Input1.getText());

int num2=Integer.parseInt(Input2.getText());

int num3=Integer.parseInt(Input3.getText());

if(num3==1){ num4=num1+num2 ;}

if(num3==2){ num4=num1-num2 ;}

if(num3==3){ num4=num1*num2 ;}

if(num3==4){ num4=num1/num2 ;}

ShowAnswer.setText(String.valueOf(num4));

}

求jsp编写的简易留言板代码！

%@ page contentType="text/html;charset=gb2312"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

// 判断是否有错误信息，如果有则打印

// 如果没有此段代码，则显示时会直接打印null

if(request.getAttribute("err")!=null)

{

h2%=request.getAttribute("err")%/h2

}

form action="login_conf.jsp" method="post"

table width="80%"

td colspan="2"用户登陆/td

/tr

td用户名：/td

tdinput type="text" name="id"/td

/tr

td密码：/td

tdinput type="password" name="password"/td

/tr

td colspan="2"

input type="submit" value="登陆"

input type="reset" value="重置"

/td

/tr

/table

/form

/center

/body

/html

LOGIN_CONF.JSP

%@ page contentType="text/html;charset=gb2312"%

%@ page import="java.sql.*"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

String DBURL = "jdbc:oracle:thin:@localhost:1521:three" ;

String DBUSER = "scott" ;

String DBPASSWORD = "tiger" ;

Connection conn = null ;

PreparedStatement pstmt = null ;

ResultSet rs = null ;

// 声明一个boolean变量，用于保存用户是否合法的状态

boolean flag = false ;

// 接收参数

String id = request.getParameter("id") ;

String password = request.getParameter("password") ;

String sql = "SELECT name FROM person WHERE id=? and password=?" ;

try

{

Class.forName(DBDRIVER) ;

conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD) ;

pstmt = conn.prepareStatement(sql) ;

pstmt.setString(1,id) ;

pstmt.setString(2,password) ;

rs = pstmt.executeQuery() ;

if(rs.next())

{

// 用户合法

flag = true ;

// 将用户名保存在session之中

session.setAttribute("uname",rs.getString(1)) ;

}

else

{

// 保存错误信息

request.setAttribute("err","错误的用户名及密码！！！") ;

}

rs.close() ;

pstmt.close() ;

conn.close() ;

}

catch(Exception e)

{}

// 跳转

if(flag)

{

// 用户合法

jsp:forward page="login_success.jsp"/

}

else

{

// 用户非法

jsp:forward page="login.jsp"/

}

/center

/body

/html

LOGIN_SUCCESS.JSP

%@ page contentType="text/html;charset=gb2312"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

h2登陆成功/h2

h2欢迎font color="red" size="12"

%=session.getAttribute("uname")%

/font光临MLDN留言程序/h2

h3a href="list_notes.jsp"进入留言管理页面/a/h3

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

INSERT.JSP

%@ page contentType="text/html;charset=gb2312"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

form action="insert_do.jsp" method="post"

table

td colspan="2"添加新留言/td

/tr

td标题：/td

tdinput type="text" name="title"/td

/tr

td作者：/td

tdinput type="text" name="author"/td

/tr

td内容：/td

tdtextarea name="content" cols="30" rows="6"/textarea/td

/tr

td colspan="2"

input type="submit" value="添加"

input type="reset" value="重置"

/td

/tr

/table

/form

h3a href="list_notes.jsp"回到留言列表页/a/h3

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

INSERT_DO.JSP

%@ page contentType="text/html;charset=gb2312"%

%@ page import="java.sql.*"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

// 进行乱码处理

request.setCharacterEncoding("GB2312") ;

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

String DBURL = "jdbc:oracle:thin:@localhost:1521:three" ;

String DBUSER = "scott" ;

String DBPASSWORD = "tiger" ;

Connection conn = null ;

PreparedStatement pstmt = null ;

// 声明一个boolean变量

boolean flag = false ;

// 接收参数

String title = request.getParameter("title") ;

String author = request.getParameter("author") ;

String content = request.getParameter("content") ;

// 现在note表中的主键是sequence生成

String sql = "INSERT INTO note VALUES(note_sequ.nextVal,?,?,?)" ;

try

{

Class.forName(DBDRIVER) ;

conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD) ;

pstmt = conn.prepareStatement(sql) ;

pstmt.setString(1,title) ;

pstmt.setString(2,author) ;

pstmt.setString(3,content) ;

pstmt.executeUpdate() ;

pstmt.close() ;

conn.close() ;

// 如果插入成功，则肯定能执行到此段代码

flag = true ;

}

catch(Exception e)

{}

response.setHeader("refresh","2;URL=list_notes.jsp") ;

if(flag)

{

留言添加成功，两秒后跳转到留言列表页！！！br

如果没有跳转，请按a href="list_notes.jsp"这里/a！！！

}

else

{

留言添加失败，两秒后跳转到留言列表页！！！br

如果没有跳转，请按a href="list_notes.jsp"这里/a！！！

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

LIST_NOTES.JSP

%@ page contentType="text/html;charset=gb2312"%

%@ page import="java.sql.*"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

// 编码转换

request.setCharacterEncoding("GB2312") ;

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

String DBURL = "jdbc:oracle:thin:@localhost:1521:three" ;

String DBUSER = "scott" ;

String DBPASSWORD = "tiger" ;

Connection conn = null ;

PreparedStatement pstmt = null ;

ResultSet rs = null ;

// 如果有内容，则修改变量i，如果没有，则根据i的值进行无内容提示

int i = 0 ;

String sql = null;

String keyword = request.getParameter("keyword") ;

// out.println(keyword) ;

if(keyword==null)

{

// 没有任何查询条件

sql = "SELECT id,title,author,content FROM note" ;

}

else

{

// 有查询条件

sql = "SELECT id,title,author,content FROM note WHERE title like ? or author like ? or content like ?" ;

}

try

{

Class.forName(DBDRIVER) ;

conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD) ;

pstmt = conn.prepareStatement(sql) ;

// 如果存在查询内容，则需要设置查询条件

if(keyword!=null)

{

// 存在查询条件

pstmt.setString(1,"%"+keyword+"%") ;

pstmt.setString(2,"%"+keyword+"%") ;

pstmt.setString(3,"%"+keyword+"%") ;

}

rs = pstmt.executeQuery() ;

form action="list_notes.jsp" method="POST"

请输入查询内容：input type="text" name="keyword"

input type="submit" value="查询"

/form

h3a href="insert.jsp"添加新留言/a/h3

table width="80%" border="1"

td留言ID/td

td标题/td

td作者/td

td内容/td

td删除/td

/tr

while(rs.next())

{

i++ ;

// 进行循环打印，打印出所有的内容，以表格形式

// 从数据库中取出内容

int id = rs.getInt(1) ;

String title = rs.getString(2) ;

String author = rs.getString(3) ;

String content = rs.getString(4) ;

if(keyword!=null)

{

// 需要将数据返红

title = title.replaceAll(keyword,"font color=\"red\""+keyword+"/font") ;

author = author.replaceAll(keyword,"font color=\"red\""+keyword+"/font") ;

content = content.replaceAll(keyword,"font color=\"red\""+keyword+"/font") ;

}

td%=id%/td

tda href="update.jsp?id=%=id%"%=title%/a/td

td%=author%/td

td%=content%/td

tda href="delete_do.jsp?id=%=id%"删除/a/td

/tr

}

// 判断i的值是否改变，如果改变，则表示有内容，反之，无内容

if(i==0)

{

// 进行提示

td colspan="5"没有任何内容！！！/td

/tr

}

/table

rs.close() ;

pstmt.close() ;

conn.close() ;

}

catch(Exception e)

{}

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

UPDATE.JSP

%@ page contentType="text/html;charset=gb2312"%

%@ page import="java.sql.*"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

String DBURL = "jdbc:oracle:thin:@localhost:1521:three" ;

String DBUSER = "scott" ;

String DBPASSWORD = "tiger" ;

Connection conn = null ;

PreparedStatement pstmt = null ;

ResultSet rs = null ;

// 接收参数

int id = 0 ;

try

{

id = Integer.parseInt(request.getParameter("id")) ;

}

catch(Exception e)

{}

// 如果有内容，则修改变量i，如果没有，则根据i的值进行无内容提示

int i = 0 ;

String sql = "SELECT id,title,author,content FROM note WHERE id=?" ;

try

{

Class.forName(DBDRIVER) ;

conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD) ;

pstmt = conn.prepareStatement(sql) ;

// 设置查询条件

pstmt.setInt(1,id) ;

rs = pstmt.executeQuery() ;

if(rs.next())

{

i++ ;

// 进行循环打印，打印出所有的内容，以表格形式

// 从数据库中取出内容

id = rs.getInt(1) ;

String title = rs.getString(2) ;

String author = rs.getString(3) ;

String content = rs.getString(4) ;

form action="update_do.jsp" method="post"

table

td colspan="2"添加新留言/td

/tr

td标题：/td

tdinput type="text" name="title" value="%=title%"/td

/tr

td作者：/td

tdinput type="text" name="author" value="%=author%"/td

/tr

td内容：/td

tdtextarea name="content" cols="30" rows="6"%=content%/textarea/td

/tr

td colspan="2"

input type="hidden" name="id" value="%=id%"

input type="submit" value="更新"

input type="reset" value="重置"

/td

/tr

/table

/form

}

else

{

没有发现，要更新的内容！！br

请确认要更新的留言是否存在！！br

}

rs.close() ;

pstmt.close() ;

conn.close() ;

}

catch(Exception e)

{}

h3a href="list_notes.jsp"回到留言列表页/a/h3

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

UPDATE_DO.JSP

%@ page contentType="text/html;charset=gb2312"%

%@ page import="java.sql.*"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

// 进行乱码处理

request.setCharacterEncoding("GB2312") ;

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

String DBURL = "jdbc:oracle:thin:@localhost:1521:three" ;

String DBUSER = "scott" ;

String DBPASSWORD = "tiger" ;

Connection conn = null ;

PreparedStatement pstmt = null ;

// 声明一个boolean变量

boolean flag = false ;

// 接收参数

String title = request.getParameter("title") ;

String author = request.getParameter("author") ;

String content = request.getParameter("content") ;

int id = 0 ;

try

{

id = Integer.parseInt(request.getParameter("id")) ;

}

catch(Exception e)

{}

// 更新note表中的数据

String sql = "UPDATE note set title=?,author=?,content=? WHERE id=?" ;

try

{

Class.forName(DBDRIVER) ;

conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD) ;

pstmt = conn.prepareStatement(sql) ;

pstmt.setString(1,title) ;

pstmt.setString(2,author) ;

pstmt.setString(3,content) ;

pstmt.setInt(4,id);

pstmt.executeUpdate() ;

pstmt.close() ;

conn.close() ;

// 如果修改成功，则肯定能执行到此段代码

flag = true ;

}

catch(Exception e)

{}

response.setHeader("refresh","2;URL=list_notes.jsp") ;

if(flag)

{

留言修改成功，两秒后跳转到留言列表页！！！br

如果没有跳转，请按a href="list_notes.jsp"这里/a！！！

}

else

{

留言修改失败，两秒后跳转到留言列表页！！！br

如果没有跳转，请按a href="list_notes.jsp"这里/a！！！

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

DELETE_DO.JSP

%@ page contentType="text/html;charset=gb2312"%

%@ page import="java.sql.*"%

html

head

titleJSP+JDBC 留言管理程序――登陆/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC实现/h1

if(session.getAttribute("uname")!=null)

{

// 用户已登陆

String DBDRIVER = "oracle.jdbc.driver.OracleDriver" ;

String DBURL = "jdbc:oracle:thin:@localhost:1521:three" ;

String DBUSER = "scott" ;

String DBPASSWORD = "tiger" ;

Connection conn = null ;

PreparedStatement pstmt = null ;

// 接收参数

int id = 0 ;

try

{

id = Integer.parseInt(request.getParameter("id")) ;

}

catch(Exception e)

{}

String sql = "DELETE FROM note WHERE id=?" ;

boolean flag = false ;

try

{

Class.forName(DBDRIVER) ;

conn = DriverManager.getConnection(DBURL,DBUSER,DBPASSWORD) ;

pstmt = conn.prepareStatement(sql) ;

// 设置删除条件

pstmt.setInt(1,id) ;

pstmt.executeUpdate() ;

pstmt.close() ;

conn.close() ;

flag = true ;

}

catch(Exception e)

{}

response.setHeader("refresh","2;URL=list_notes.jsp") ;

if(flag)

{

留言删除成功，两秒后跳转到留言列表页！！！br

如果没有跳转，请按a href="list_notes.jsp"这里/a！！！

}

else

{

留言删除失败，两秒后跳转到留言列表页！！！br

如果没有跳转，请按a href="list_notes.jsp"这里/a！！！

}

else

{

// 用户未登陆，提示用户登陆，并跳转

response.setHeader("refresh","2;URL=login.jsp") ;

您还未登陆，请先登陆！！！br

两秒后自动跳转到登陆窗口！！！br

如果没有跳转，请按a href="login.jsp"这里/a！！！br

}

/center

/body

/html

-- 创建表

-- 用户表（登陆）、留言表

-- 删除表

DROP TABLE person ;

DROP TABLE note ;

-- 删除序列

DROP SEQUENCE note_sequ ;

-- 创建序列

CREATE SEQUENCE note_sequ ;

-- 创建person表

CREATE TABLE person

(

id varchar(20) not null primary key ,

name varchar(20) ,

password varchar(20)

) ;

-- 创建留言表

CREATE TABLE note

(

id int not null primary key , -- sequence

title varchar(20) not null ,

author varchar(20) not null ,

content varchar(50) not null

) ;

-- 插入测试数据

INSERT INTO person VALUES ('LXH','李兴华','zzzzzz') ;

INSERT INTO person VALUES ('MLDN','魔乐','mmmmmm') ;

-- 事务提交

commit ;

用Java web 做一个留言板留言功能实现了，不知道怎么实现回复和删除留言的功能，知道的高手，请帮帮忙。

先说说回复吧：

假如:

留言表（id , text ）两个字段

回复表（ id , text parentId ）用来存放留言表id 三个字段

目前有一条留言

1001,'这是一条留言';

那么给这条留言的回复就是

1003 , '这是一条回复', 1001(这就是该留言的ID) 这样就把留言和回复关联上了

回复后点保存时，将数据传入后台，数据库做insert操作就行了

删除一样的

如果删除回复，直接传入回复的ID 即可

如果删除留言，得先判断该留言有没有回复，如果有回复，则先删除回复，在删除留言（外键约束）

网页留言板的代码

meta http-equiv="Content-Type" content="text/html;charset=gb2312"

%@ Language=VBScript %

!--#INCLUDE FILE="config.asp" --

!--#INCLUDE FILE="guest_lib.asp" --%

dim ASPBook

dim StrSQL

if not isempty(request("page")) then

Mypage=cint(Request("page"))

else

Mypage=1

end if

set ASPBook = Server.CreateObject("ADODB.Recordset")

StrSQL = "Select * from guest order by ID desc"

ASPBook.open StrSQL,conn,1,1

ASPBook.pagesize=Mypagesize

maxpages=cint(ASPBook.pagecount)

totalsize=cint(Mypagesize)

ASPBook.absolutepage=Mypage

GuestTotal=ASPBook.RecordCount

if cint(Mypage) 1 then

if cint(Mypage) maxpages then

MESSAGE("li没有你所想去的页数！/li")

Response.End

end if

HEADER "显示留言"

MyMenu

html

head

title[ 客户留言系统 ]/title

meta http-equiv="Content-Type" content="text/html; charset=gb2312"

link rel="stylesheet" href="css/colorbird.css"

style

BODY {SCROLLBAR-FACE-COLOR: #D4D0C8; SCROLLBAR-HIGHLIGHT-COLOR: #999999; SCROLLBAR-SHADOW-COLOR: #999999; SCROLLBAR-3DLIGHT-COLOR: #FFFFFF; SCROLLBAR-ARROW-COLOR: #000000; SCROLLBAR-TRACK-COLOR: #E3E3E3; SCROLLBAR-DARKSHADOW-COLOR: #666666; }

/style

/head

body bgcolor="#FFFFFF" topmargin="0" leftmargin="0"

p align="center"a href="gb_sign.asp"

img border="0" src="IMAGES/sign.gif" alt="签写留言"/a/p

tdp align="center"font color="#000000"bfont face="Arial" size="1"Total of

font color="#ff0000"%=GuestTotal%/font messages, /font/b/font

font face="Arial"font size="1" color="#ff0000"%=MyPageSize%/fontfont size="1"

messages per page, You are on page/font/font/fontfont color="#FF0000"font size="1" face="Arial"%=cint(Mypage)%/font

%=Greeting%... font color="#000000"%PageLink%/font/p

/font

div align="right"/div/td

div align="center"

center

table width="590" border="0" cellspacing="0" cellpadding="0"

td height="50"a href="gb_sign.asp"img src="IMAGES/shop.gif" alt="签写留言" width="89" height="25" border="0"/a/td

/tr

/table

table border="1" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#6699CC" width="590" height="197"

td align="center" height="197"

table width="590" border="0" cellspacing="0" cellpadding="4" style="border-collapse: collapse" height="35" bgcolor="#F7F7F7"

/tr

/table

table cellspacing="1" border="1" width="592" height="23" style="border-collapse: collapse" cellpadding="0" bgcolor="#C6C3C6" bordercolorlight="#FFFFFF" bordercolordark="#000000" background="table.gif"

td align="right" width="130" height="23"

p align="left"b

font color="#FFFFFF"留言者 :/font/b/p

/td

td align="right" width="445" height="23"

p align="left"b

font color="#FFFFFF"留言内容 :/font/b/p

/td

/tr

/table

table width="590" border="0" cellspacing="0" cellpadding="0"

If ASPBook.Eof or ASPBook.Bof then

Response.Write "TR"

Response.Write "TD bgcolor=" Color1 " align=center colspan=6FONT STYLE=font-size:9pt对不起，目前还没有任何留言，如要留言，请按“我要留言”图片！/FONT/TD"

else

i = 0

total = 0

do until ASPBook.Eof or total = totalsize

if i = 0 then

CColor = Color1

else

CColor = Color2

end if

tr bgcolor="%=CColor%"

table width="590" border="1" cellspacing="8" cellpadding="0" style="border-collapse: collapse" bordercolor="#111111"

/tr

/table

table width="590" border="0" cellpadding="2" style="border-collapse: collapse" bordercolor="#111111" height="1"

td width="137" rowspan="3" height="1" valign="top"

table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="99%" id="AutoNumber2" height="96"

td width="100%" align="center" height="12"b%=ASPBook("名字")%/b/td

/tr

td width="100%" align="center" height="54"%if ASPBook("性别") = "boy" then%

img src="images/boy.gif" alt="英俊潇洒的 %=ASPBook("名字")% 先生" align="middle" border="0"

%elseif ASPBook("性别") = "girl" then%

img src="images/girl.gif" alt="美丽又温柔的 %=ASPBook("名字")% 小姐" align="middle" border="0"

%end if%/td

/tr

td width="100%" align="center" height="28"Form: %=ASPBook("来自")% /td

/tr

/table

/td

td width="234" height="1"font size="1"

font color="#000000" class="littel"

img src="./icons/em%=ASPBook("表情")%.gif" border="0" align="ABSCENTER"/fontfont color="#0000FF" class="littel"On:

%=ASPBook("留言日期")%/font/fontfont size="1" color="#0000FF"

/font/td

td width="212" height="1"%if ASPBook("邮件")"" then%

a href="mailto:%=ASPBook("邮件")%"

img src="images/email.gif" ALIGN="absmiddle" border="0" width="15" height="16"/a

%end if% %if ASPBook("主页")"" and ASPBook("主页")"http://" then%

a href="%=ASPBook("主页")%" Target="_blank"

img src="images/home.gif" ALIGN="absmiddle" border="0"/a

%end if% %if ASPBook("ICQ")"" then%

img src="images/icq.gif" alt="ICQ：%=ASPBook("ICQ")%" align="absmiddle" border="0" width="15" height="16"

%if ASPBook("OICQ")"" then% %end if%

a href=";%=ASPBook("OICQ")%" target="_blank"

img src="images/oicq.gif" alt="OICQ：%=ASPBook("OICQ")%" align="absmiddle" border="0" width="16" height="16"/a

%end if%

img src="images/ip.gif" alt="%=ASPBook("IP")%" align="absmiddle" border="0" width="13" height="16"

img src="images/system.gif" alt="%=ASPBook("系统")%" align="absmiddle" border="0" width="15" height="16"/td

/tr

td width="450" height="14" colspan="2" valign="top"%=ASPBook("留言")% /td

/tr

%if ASPBook("Reply")"" then%td width="450" height="17" colspan="2" valign="top"

font color="#FF0000"Reply :b /b/font

font color="#0000FF" class="littel" size="1"(%=ASPBook("Reply_Date")%)/fontbr

img src="./icons/em%=ASPBook("Reply_Icon")%.gif" border="0" align="ABSCENTER"%=ASPBook("Reply")%/font/td

%end if%/tr

/table

table width="590" border="0" cellspacing="0" cellpadding="0" style="border-collapse: collapse" bordercolor="#111111"

td width="137" rowspan="2" /td

td width="450"/td

/tr

td width="450" /td

/tr

/table

table width="590" height="24" border="0" cellpadding="0" cellspacing="1" bordercolor="#DCE8F3" bordercolorlight="#FFFFFF" bgcolor="#DCE8F3" style="border-collapse: collapse"

td align="right" width="131" height="20"

p align="left" /p

/td

td align="right" width="448" height="20"

a href="gb_reply.asp?page=%=mypage%Number=%=ASPBook("ID")%"

img src="images/quote.gif" alt="回复该留言" align="absmiddle" border="0" width="16" height="16"/a

a href="gb_delete.asp?page=%=mypage%Number=%=ASPBook("ID")%"

img src="images/recycle.gif" alt="删除该留言" align="absmiddle" border="0" width="16" height="16"/a/td

/tr

/table

/td

/tr

ASPBook.MoveNext

i = i + 1

if i = 2 then i = 0

total = total + 1

loop

% %END IF%

/table

%COPYRIGHT%

table border="0" cellpadding="2" cellspacing="0" width="590" height="1" bgcolor="#F7F7F7" style="border-collapse: collapse" bordercolor="#FFFFFF" bordercolorlight="#FFFFFF"

td width="131" height="1"

p align="center"/p

/td

td align="right" width="448" height="1"font color="#000000"%PageLink%

/font /td

/tr

/table

/td

/tr

/table

/center

/div

div align="center"

center

table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="592" id="AutoNumber1"

td width="100%"

p align="center"a href="gb_sign.asp" /abr

/td

/tr

/table

/center

/div

/body

/html

function PageLink

PageShowSize = 10

Scriptname=Request.Servervariables("script_name")

PageNextSize=int((MyPage-1)/PageShowSize)+1

Pagetpage=int((GuestTotal-1)/MyPageSize)+1

if Maxpages 1 then

if PageNextSize 1 then

PagePrev=PageShowSize*(PageNextSize-1)

Response.write "a href='" Scriptname "?page=" PagePrev "'[]/a-"

end if

if Mypage-1 0 then

Prev_Page = MyPage - 1

Response.write "a href='" Scriptname "?page=" Prev_Page "'[]/a "

end if

if maxpages=PageNextSize*PageShowSize then

PageSizeShow = PageShowSize

else

PageSizeShow = Maxpages-PageShowSize*(PageNextSize-1)

end if

for PageCounterSize=1 to PageSizeShow

PageLink = (PageCounterSize+PageNextSize*10)-10

if PageLink cint(Mypage) then

Response.write "a href='" Scriptname "?page=" PageLink "'[" PageLink "]/a "

else

Response.Write PageLink " "

end if

if Mypage+1 =Pagetpage then

Next_Page = MyPage + 1

Response.write "a href='" Scriptname "?page=" Next_Page "'[]/a"

end if

if maxpages PageShowSize*PageNextSize then

PageNext = PageShowSize * PageNextSize + 1

Response.write "-a href='" Scriptname "?page=" PageNext "'[]/a"

end if

else

Response.write "[1]"

end if

END function

set ASPBook=nothing

conn.Close

set conn = nothing

开源里有没有留言板的源代码，JAVA的

绝对开源，绝对明了的留言板，便于学习的源码

用JAVA写的留言板原代码

* guestbookServlet.java

* */

import javax.servlet.*;

import javax.servlet.http.*;

import java.sql.*;

import java.util.Date;

/**

* */

public class guestbookServlet extends HttpServlet {

boolean debug=false;

String sDBDriver;

Connection conn=null;

ResultSet rs=null;

/** Initializes the servlet.

public void init(ServletConfig config) throws ServletException {

super.init(config);

if(debug)

sDBDriver=new String("sun.jdbc.odbc.JdbcOdbcDriver");

else

sDBDriver=new String("org.gjt.mm.mysql.Driver");

try{

Class.forName(sDBDriver);

}

catch(java.lang.ClassNotFoundException e){

System.err.println("Driver类初始化:"+e.getMessage());

}

/** Destroys the servlet.

public void destroy() {

}

/** Processes requests for both HTTP codeGET/code and codePOST/code methods.

* @param request servlet request

* @param response servlet response

protected void processRequest(HttpServletRequest request, HttpServletResponse response)

throws ServletException, java.io.IOException {

response.setContentType("text/html;charset=gb2312");

java.io.PrintWriter out = response.getWriter();

boolean empty=true;

boolean noResult=true;

String sqlStr;

int currentPage=0;

int totalPage=0;

int reccount=0;

ResultSet myrs=null;

String username=request.getParameter("username");

String email=request.getParameter("email");

String ucontent=request.getParameter("ucontent");

String ipage=request.getParameter("ipage");

if(ipage==null||ipage.length()==0)

currentPage=1;

else

currentPage=Integer.parseInt(ipage);

if((username==null||username.length()==0)||(ucontent==null||ucontent.length()==0))empty=true;

else empty=false;

Date myDate=new Date();

//String intime=new String(String.valueOf(myDate.getYear()+1990)+String.valueOf(myDate.getMonth()));

String year=String.valueOf(myDate.getYear()+1900);

String month=String.valueOf(myDate.getMonth()+1);

if(month.length()==1)

month=new String("0"+month);

String days=String.valueOf(myDate.getDate());

if(days.length()==1)

days=new String("0"+days);

String hours=String.valueOf(myDate.getHours());

if(hours.length()==1)

hours=new String("0"+hours);

String minutes=String.valueOf(myDate.getMinutes());

if(minutes.length()==1)

minutes=new String("0"+minutes);

String intime=year+"-"+month+"-"+days+" "+hours+":"+minutes;

if(email==null||email.length()==0)

email=new String("");

if(!empty){

//username=convert(username);

//email=convert(email);

//ucontent=convert(ucontent);

sqlStr="insert into Mintegbook(Mname,Memail,Mcontent,Mtime,Mid) values("+username+","+email+","+ucontent+","+intime+",1)";

getDsnConn();

executeInsert(sqlStr);

}

sqlStr=new String("select Mname,Memail,Mcontent,Mtime from Mintegbook order by Mtime DESC");

getDsnConn();

reccount=getRecordCount("Mintegbook");

if(reccount==0)

noResult=true;

else

noResult=false;

if(!noResult){

int ipageSize=10;

totalPage=getTotalPage("Mintegbook",ipageSize);

if(currentPagetotalPage)

currentPage=totalPage;

int cursor=(currentPage-1)*ipageSize+1;

try{

myrs=executeScrollableQuery(sqlStr);

myrs.absolute(cursor);

}

catch(SQLException e){

noResult=true;

}

out.println("HTMLHEADTITLE我的Servlet留言板/TITLE");

out.println("META http-equiv="Content-Type" content="text/html; charset=gb2312"");

out.println("STYLE type="text/css"");

out.println("!--");

out.println(".mytext { font-family: "宋体"; font-size: 12px}");

out.println(" --");

out.println("/STYLE");

out.println("/HEAD");

out.println("BODY bgcolor="#FFFFFF" text="#000000"");

out.println("TABLE width="600" border="0" cellspacing="0" cellpadding="0" align="CENTER" class="mytext"");

out.println("TRTD height="22" | a href=""我的主页/a | 我的Servlet留言板(A href="mailto:yf188@21cn.com"川石/A制作)/TD/TR");

out.println("TRTD height="1" bgcolor="#999933"/TD/TR");

out.println("/TABLE");

out.println("BR");

out.println("TABLE width="600" border="0" cellspacing="0" cellpadding="0" align="CENTER" class="mytext"");

out.println("TRTD height="8"/TD/TR");

out.println("TRTD height="18" bgcolor="#f7f7f7"DIV align="right"");

out.println("共有 "+reccount + " 条留言 ");

out.println(" 当前第font color=#ff0000"+currentPage+"/font/共 "+totalPage+" 页 ");

if(currentPage1)

out.println(" a href=guestbookServlet?ipage=1首页/a a href=guestbookServlet?ipage="+(currentPage-1)+"上一页/a ");

else

out.println(" 首页上一页 ");

if(currentPagetotalPage)

out.println(" a href=guestbookServlet?ipage="+(currentPage+1)+"下一页/a a href=guestbookServlet?ipage="+totalPage+"末页/a ");

else

out.println(" 下一页末页 ");

out.println("/DIV/TD/TR");

out.println("/TABLE");

out.println("BR");

//这里是显示留言内容

if(!noResult){

String dname;

String demail;

String dcontent;

String dtime;

Date temptime;

try{

do{

dname=new String(myrs.getString("Mname"));

demail=new String(myrs.getString("Memail"));

dcontent=new String(myrs.getString("Mcontent"));

try{

dtime=new String(myrs.getObject("Mtime").toString());

}

catch(java.lang.NullPointerException e){

dtime=new String("2001-04-06 12:30");

}

if(dname==null)

dname=new String("川石");

if(demail==null)

demail=new String("yf188@21cn.com");

if(dcontent==null)

dcontent=new String("test");

if(dtime==null)

dtime=new String("2001-04-06 12:30");

dname=convert(dname);

dcontent=convert(dcontent);

//temptime=myrs.getDate("Mtime");

String tempyear=String.valueOf(temptime.getYear()+1900);

String tempmonth=String.valueOf(temptime.getMonth()+1);

if(tempmonth.length()==1)

tempmonth=new String("0"+tempmonth);

String tempdays=String.valueOf(temptime.getDate());

if(tempdays.length()==1)

tempdays=new String("0"+tempdays);

String tempminute=String.valueOf(temptime.getMinutes());

if(tempminute.length()==1)

tempminute=new String("0"+tempminute);

String temphours=String.valueOf(temptime.getHours());

if(temphours.length()==1)

temphours=new String("0"+temphours);

String dtime=tempyear+" 年 "+ tempmonth +" 月 "+ tempdays +" 日 " + temphours+ " 时 "+ tempminute + " 分 ";

out.println("TABLE width="600" border="0" cellspacing="0" cellpadding="4" align="CENTER" class="mytext"");

out.println("TRTD姓名 A href="mailto:"+demail+"""+dname+"/A 留言时间："+dtime+"/TD/TR");

out.println("TRTD height="10"/TD/TR");

out.println("TRTD height="10""+dcontent+"/TD/TR");

out.println("/TABLE");

out.println("HR width="600" size="1"");

}while(myrs.next());}

catch(SQLException e){

out.println("error found");

}

else{

out.println("还没有留言！");

}

//结束

out.println("FORM name="form1" method="post" action="guestbookServlet"");

out.println("TABLE width="600" border="0" cellspacing="0" cellpadding="4" align="CENTER" class="mytext"");

out.println("TRTD width="80"姓名:/TDTDINPUT type="text" name="username"*/TD/TR");

out.println("TRTDEmail:/TDTDINPUT type="text" name="email"*/TD/TR");

out.println("TRTD留言：/TDTDTEXTAREA name="ucontent" cols="65" rows="4"/TEXTAREA/TD/TR");

out.println("/TABLE");

out.println("TABLE width="400" border="0" cellspacing="0" cellpadding="6" align="CENTER" class="mytext"");

out.println("TRTD height="15" width="200" /TDTD /TD/TR");

out.println("TRTDDIV align="RIGHT"INPUT type="button" name="Button" value=" 提交 " style="cursor:hand" onclick="javascript:check()"/DIV/TD");

out.println("TDINPUT type="reset" name="Submit2" value=" 重置 "/TD/TR");

out.println("/TABLE");

out.println("/FORM");

out.println("TABLE width="400" border="0" cellspacing="0" cellpadding="4" align="CENTER" class="mytext"");

out.println("TRTD width="15" /TD/TR");

out.println("TRTDDIV align="LEFT"/DIV/TD/TR");

out.println("TRTD /TD/TR");

out.println("/TABLE");

out.println("/BODY");

out.println("/HTML");

out.println("SCRIPT language="javascript"");

out.println("function check(){");

out.println("if(form1.username.value.length1||form1.ucontent.value.length1)");

out.println("{alert(姓名和留言是必须有的!);}else{form1.submit();}}");

out.println("/SCRIPT");

out.close();

}

/** Handles the HTTP codeGET/code method.

* @param request servlet request

* @param response servlet response

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, java.io.IOException {

processRequest(request, response);

}

/** Handles the HTTP codePOST/code method.

* @param request servlet request

* @param response servlet response

protected void doPost(HttpServletRequest request, HttpServletResponse response)

throws ServletException, java.io.IOException {

processRequest(request, response);

}

protected void getDsnConn(){

String sqlUrl="jdbc:mysql://10.0.0.1/你申请用户名?user=你的名字password=你的帐号";

try{

if(debug)

conn=DriverManager.getConnection("jdbc:odbc:ODBC源","用户名","密码口令");

else

conn=DriverManager.getConnection(sqlUrl);

}

catch(SQLException es){

System.err.println("和库连接时出错:"+es.getMessage());

}

protected void executeInsert(String sqlStr){

try{

Statement stmt=conn.createStatement();

stmt.executeUpdate(sqlStr);

}

catch(SQLException es){

System.err.println("执行插入时:"+es.getMessage());

}

protected void executeUpdate(String sqlStr){

try{

Statement stmt=conn.createStatement();

stmt.executeUpdate(sqlStr);

}

catch(SQLException e){

System.err.println("error in query record");

}

//查寻

protected ResultSet executeQuery(String sqlStr){

rs=null;

try{

Statement stmt=conn.createStatement();

rs=stmt.executeQuery(sqlStr);

}

catch(SQLException ex){

System.err.println("执行查寻出错："+ex.getMessage());

}

return rs;

}

protected ResultSet executeScrollableQuery(String sqlStr){

rs=null;

try{

Statement stmt=conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);

rs=stmt.executeQuery(sqlStr);

}

catch(SQLException e){

System.err.println("执行动态查寻出错");

}

return rs;

}

//得到表记录总数

protected int getRecordCount(String sTableName){

rs=null;

int CountResult=0;

String sqlStr="select count(*) from "+sTableName;

try{

Statement stmt=conn.createStatement();

rs=stmt.executeQuery(sqlStr);

if(rs.next())

CountResult=rs.getInt(1);

rs=null;

stmt.close();

}

catch(SQLException ex){

System.err.println(ex.getMessage());

}

return CountResult;

}

//得到记录总页数

protected int getTotalPage(String sTableName,int iPageSize){

int totalPage;

int totalRecNum=getRecordCount(sTableName);

if(totalRecNum%iPageSize==0)

totalPage=totalRecNum/iPageSize;

else

totalPage=totalRecNum/iPageSize+1;

return totalPage;

}

protected String convert(String InputStr){

String converted=new String();

byte[] bytes;

try{

bytes=InputStr.getBytes("ISO8859-1");

converted=new String(bytes,"GB2312");

}

catch(java.io.UnsupportedEncodingException e){

System.out.print("error");

}

return converted;

}

/** Returns a short description of the servlet.

public String getServletInfo() {

return "Short description";

}

急急急！java简单留言板

您好。我重新地帮你写了代码，完全地符合了你的图片中的界面要求、功能要求。代码如下：（解决了问题，记得给我分哦~^_^呵呵……）

import java.awt.BorderLayout;

import javax.swing.JPanel;

import javax.swing.JFrame;

import java.awt.Rectangle;

import javax.swing.JLabel;

import javax.swing.SwingConstants;

import java.awt.Font;

import javax.swing.JTextArea;

import javax.swing.JScrollBar;

import javax.swing.JScrollPane;

import javax.swing.JComboBox;

import javax.swing.JTextField;

import javax.swing.JButton;

public class Liuyb extends JFrame {

private static final long serialVersionUID = 1L;

private JPanel jContentPane = null;

private JLabel jLabel = null;

private JTextArea jTextArea = null;

private JScrollPane jScrollPane = null;

private JLabel jLabel1 = null;

private JComboBox jComboBox = null;

private JLabel jLabel2 = null;

private JTextField jTextField = null;

private JButton jButton = null;

private JButton jButton1 = null;

private JButton jButton2 = null;

private JButton jButton3 = null;

/**

* This is the default constructor

public Liuyb() {

super();

initialize();

}

/**

* This method initializes this

* @return void

private void initialize() {

this.setContentPane(getJContentPane());

this.setTitle("留言板程序");

this.setBounds(new Rectangle(0, 0, 640, 480));

this.setVisible(true);

}

/**

* This method initializes jContentPane

* @return javax.swing.JPanel

private JPanel getJContentPane() {

if (jContentPane == null) {

jLabel2 = new JLabel();

jLabel2.setBounds(new Rectangle(214, 407, 45, 24));

jLabel2.setFont(new Font("Dialog", Font.BOLD, 14));

jLabel2.setText("地说：");

jLabel1 = new JLabel();

jLabel1.setBounds(new Rectangle(32, 407, 15, 24));

jLabel1.setFont(new Font("Dialog", Font.BOLD, 14));

jLabel1.setText("你");

jLabel = new JLabel();

jLabel.setBounds(new Rectangle(283, 15, 45, 20));

jLabel.setHorizontalAlignment(SwingConstants.CENTER);

jLabel.setFont(new Font("Dialog", Font.BOLD, 14));

jLabel.setText("留言板");

jContentPane = new JPanel();

jContentPane.setLayout(null);

jContentPane.add(jLabel, null);

jContentPane.add(getJScrollPane(), null);

jContentPane.add(jLabel1, null);

jContentPane.add(getJComboBox(), null);

jContentPane.add(jLabel2, null);

jContentPane.add(getJTextField(), null);

jContentPane.add(getJButton(), null);

jContentPane.add(getJButton1(), null);

jContentPane.add(getJButton2(), null);

jContentPane.add(getJButton3(), null);

}

return jContentPane;

}

/**

* This method initializes jTextArea

* @return javax.swing.JTextArea

private JTextArea getJTextArea() {

if (jTextArea == null) {

jTextArea = new JTextArea();

jTextArea.setText("留言内容：");

jTextArea.setEditable(false);

}

return jTextArea;

}

/**

* This method initializes jScrollPane

* @return javax.swing.JScrollPane

private JScrollPane getJScrollPane() {

if (jScrollPane == null) {

jScrollPane = new JScrollPane();

jScrollPane.setBounds(new Rectangle(22, 49, 534, 347));

jScrollPane.setViewportView(getJTextArea());

}

return jScrollPane;

}

/**

* This method initializes jComboBox

* @return javax.swing.JComboBox

private JComboBox getJComboBox() {

if (jComboBox == null) {

jComboBox = new JComboBox();

jComboBox.setBounds(new Rectangle(54, 407, 149, 24));

String[] mycbox={"微笑","大笑","痛苦"};

jComboBox.addItem(mycbox[0]);

jComboBox.addItem(mycbox[1]);

jComboBox.addItem(mycbox[2]);

}

return jComboBox;

}

/**

* This method initializes jTextField

* @return javax.swing.JTextField

private JTextField getJTextField() {

if (jTextField == null) {

jTextField = new JTextField();

jTextField.setBounds(new Rectangle(265, 407, 231, 24));

}

return jTextField;

}

/**

* This method initializes jButton

* @return javax.swing.JButton

private JButton getJButton() {

if (jButton == null) {

jButton = new JButton();

jButton.setBounds(new Rectangle(505, 407, 70, 24));

jButton.setText("提交");

jButton.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

jTextArea.setText(jTextArea.getText()+"\r\n"+"你"+jComboBox.getSelectedItem().toString()+"地说："+jTextField.getText());

}

});

}

return jButton;

}

/**

* This method initializes jButton1

* @return javax.swing.JButton

private JButton getJButton1() {

if (jButton1 == null) {

jButton1 = new JButton();

jButton1.setBounds(new Rectangle(565, 51, 60, 32));

jButton1.setText("清屏");

jButton1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

jTextArea.setText("留言内容：");

}

});

}

return jButton1;

}

/**

* This method initializes jButton2

* @return javax.swing.JButton

private JButton getJButton2() {

if (jButton2 == null) {

jButton2 = new JButton();

jButton2.setBounds(new Rectangle(565, 112, 60, 32));

jButton2.setText("置顶");

jButton2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

jTextArea.setCaretPosition(0);

}

});

}

return jButton2;

}

/**

* This method initializes jButton3

* @return javax.swing.JButton

private JButton getJButton3() {

if (jButton3 == null) {

jButton3 = new JButton();

jButton3.setBounds(new Rectangle(565, 173, 60, 32));

jButton3.setText("至尾");

jButton3.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

jTextArea.setCaretPosition((int)jTextArea.getText().length());

}

});

}

return jButton3;

}

public static void main(String args[]){

new Liuyb();

}

文章标题：java网页留言板源代码 JAVA留言板
本文来源：http://cqcxhl.com/article/doocdep.html

重庆分公司，新征程启航

java网页留言板源代码 JAVA留言板

java js留言板

求jsp编写的简易留言板代码！

用Java web 做一个留言板留言功能实现了，不知道怎么实现回复和删除留言的功能，知道的高手，请帮帮忙。

网页留言板的代码

开源里有没有留言板的源代码，JAVA的

急急急！java简单留言板

其他资讯

重庆分公司，新征程启航

java网页留言板源代码 JAVA留言板

java js留言板

求jsp编写的简易留言板代码！

用Java web 做一个留言板 留言功能实现了，不知道怎么实现回复和删除留言的功能，知道的高手，请帮帮忙。

网页留言板的代码

开源里有没有留言板的源代码，JAVA的

急急急！java简单留言板

其他资讯

用Java web 做一个留言板留言功能实现了，不知道怎么实现回复和删除留言的功能，知道的高手，请帮帮忙。