java網(wǎng)頁(yè)留言板源代碼 JAVA留言板

java js留言板

package com.zhh.test;

創(chuàng)新互聯(lián)公司專(zhuān)注于海門(mén)網(wǎng)站建設(shè)服務(wù)及定制，我們擁有豐富的企業(yè)做網(wǎng)站經(jīng)驗(yàn)。 熱誠(chéng)為您提供海門(mén)營(yíng)銷(xiāo)型網(wǎng)站建設(shè)，海門(mén)網(wǎng)站制作、海門(mén)網(wǎng)頁(yè)設(shè)計(jì)、海門(mén)網(wǎng)站官網(wǎng)定制、微信小程序開(kāi)發(fā)服務(wù)，打造海門(mén)網(wǎng)絡(luò)公司原創(chuàng)品牌,更為您提供海門(mén)網(wǎng)站排名全網(wǎng)營(yíng)銷(xiāo)落地服務(wù)。

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="計(jì)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("請(qǐng)輸入待計(jì)算的兩個(gè)數(shù)據(jù):"));

c.add(Input1);

c.add(Input2);

c.add(new JLabel("請(qǐng)輸入計(jì)算符(1 for + ,2 for - ,3 for * ,4 for / ):"));

c.add(Input3);

c.add(new JLabel("計(jì)算結(jié)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編寫(xiě)的簡(jiǎn)易留言板代碼！

LOGIN.JSP

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

html

head

titleJSP+JDBC 留言管理程序――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

// 判斷是否有錯(cuò)誤信息，如果有則打印

// 如果沒(méi)有此段代碼，則顯示時(shí)會(huì)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%"

tr

td colspan="2"用戶(hù)登陸/td

/tr

tr

td用戶(hù)名：/td

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

/tr

tr

td密 碼：/td

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

/tr

tr

td colspan="2"

input type="submit" value="登陸"

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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%!

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 ;

%

%

// 聲明一個(gè)boolean變量，用于保存用戶(hù)是否合法的狀態(tài)

boolean flag = false ;

// 接收參數(shù)

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())

{

// 用戶(hù)合法

flag = true ;

// 將用戶(hù)名保存在session之中

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

}

else

{

// 保存錯(cuò)誤信息

request.setAttribute("err","錯(cuò)誤的用戶(hù)名及密碼?。?！") ;

}

rs.close() ;

pstmt.close() ;

conn.close() ;

}

catch(Exception e)

{}

%

%

// 跳轉(zhuǎn)

if(flag)

{

// 用戶(hù)合法

%

jsp:forward page="login_success.jsp"/

%

}

else

{

// 用戶(hù)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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

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

{

// 用戶(hù)已登陸

%

h2登陸成功/h2

h2歡迎font color="red" size="12"

%=session.getAttribute("uname")%

/font光臨MLDN留言程序/h2

h3a href="list_notes.jsp"進(jìn)入留言管理頁(yè)面/a/h3

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸?。?！br

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/a?。。r

%

}

%

/center

/body

/html

INSERT.JSP

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

html

head

titleJSP+JDBC 留言管理程序――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

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

{

// 用戶(hù)已登陸

%

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

table

tr

td colspan="2"添加新留言/td

/tr

tr

td標(biāo)題：/td

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

/tr

tr

td作者：/td

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

/tr

tr

td內(nèi)容：/td

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

/tr

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"回到留言列表頁(yè)/a/h3

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸?。?！br

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

// 進(jìn)行亂碼處理

request.setCharacterEncoding("GB2312") ;

%

%

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

{

// 用戶(hù)已登陸

%

%!

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 ;

%

%

// 聲明一個(gè)boolean變量

boolean flag = false ;

// 接收參數(shù)

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

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

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

%

%

// 現(xiàn)在note表中的主鍵是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，則肯定能執(zhí)行到此段代碼

flag = true ;

}

catch(Exception e)

{}

%

%

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

if(flag)

{

%

留言添加成功，兩秒后跳轉(zhuǎn)到留言列表頁(yè)?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="list_notes.jsp"這里/a?。?！

%

}

else

{

%

留言添加失敗，兩秒后跳轉(zhuǎn)到留言列表頁(yè)?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="list_notes.jsp"這里/a?。?！

%

}

%

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸！??！br

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口！?。r

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

// 編碼轉(zhuǎn)換

request.setCharacterEncoding("GB2312") ;

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

{

// 用戶(hù)已登陸

%

%!

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 ;

%

%

// 如果有內(nèi)容，則修改變量i，如果沒(méi)有，則根據(jù)i的值進(jìn)行無(wú)內(nèi)容提示

int i = 0 ;

String sql = null;

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

// out.println(keyword) ;

if(keyword==null)

{

// 沒(méi)有任何查詢(xún)條件

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

}

else

{

// 有查詢(xún)條件

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) ;

// 如果存在查詢(xún)內(nèi)容，則需要設(shè)置查詢(xún)條件

if(keyword!=null)

{

// 存在查詢(xún)條件

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

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

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

}

rs = pstmt.executeQuery() ;

%

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

請(qǐng)輸入查詢(xún)內(nèi)容：input type="text" name="keyword"

input type="submit" value="查詢(xún)"

/form

h3a href="insert.jsp"添加新留言/a/h3

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

tr

td留言ID/td

td標(biāo)題/td

td作者/td

td內(nèi)容/td

td刪除/td

/tr

%

while(rs.next())

{

i++ ;

// 進(jìn)行循環(huán)打印，打印出所有的內(nèi)容，以表格形式

// 從數(shù)據(jù)庫(kù)中取出內(nèi)容

int id = rs.getInt(1) ;

String title = rs.getString(2) ;

String author = rs.getString(3) ;

String content = rs.getString(4) ;

if(keyword!=null)

{

// 需要將數(shù)據(jù)返紅

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") ;

}

%

tr

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%"刪除/a/td

/tr

%

}

// 判斷i的值是否改變，如果改變，則表示有內(nèi)容，反之，無(wú)內(nèi)容

if(i==0)

{

// 進(jìn)行提示

%

tr

td colspan="5"沒(méi)有任何內(nèi)容?。。?td

/tr

%

}

%

/table

%

rs.close() ;

pstmt.close() ;

conn.close() ;

}

catch(Exception e)

{}

%

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸?。。r

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/a?。。r

%

}

%

/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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

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

{

// 用戶(hù)已登陸

%

%!

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 ;

%

%

// 接收參數(shù)

int id = 0 ;

try

{

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

}

catch(Exception e)

{}

%

%

// 如果有內(nèi)容，則修改變量i，如果沒(méi)有，則根據(jù)i的值進(jìn)行無(wú)內(nèi)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) ;

// 設(shè)置查詢(xún)條件

pstmt.setInt(1,id) ;

rs = pstmt.executeQuery() ;

%

%

if(rs.next())

{

i++ ;

// 進(jìn)行循環(huán)打印，打印出所有的內(nèi)容，以表格形式

// 從數(shù)據(jù)庫(kù)中取出內(nèi)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

tr

td colspan="2"添加新留言/td

/tr

tr

td標(biāo)題：/td

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

/tr

tr

td作者：/td

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

/tr

tr

td內(nèi)容：/td

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

/tr

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

{

%

沒(méi)有發(fā)現(xiàn)，要更新的內(nèi)容??！br

請(qǐng)確認(rèn)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"回到留言列表頁(yè)/a/h3

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸?。?！br

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/a！?。r

%

}

%

/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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

// 進(jìn)行亂碼處理

request.setCharacterEncoding("GB2312") ;

%

%

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

{

// 用戶(hù)已登陸

%

%!

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 ;

%

%

// 聲明一個(gè)boolean變量

boolean flag = false ;

// 接收參數(shù)

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表中的數(shù)據(jù)

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，則肯定能執(zhí)行到此段代碼

flag = true ;

}

catch(Exception e)

{}

%

%

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

if(flag)

{

%

留言修改成功，兩秒后跳轉(zhuǎn)到留言列表頁(yè)！??！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="list_notes.jsp"這里/a?。?！

%

}

else

{

%

留言修改失敗，兩秒后跳轉(zhuǎn)到留言列表頁(yè)?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="list_notes.jsp"這里/a！??！

%

}

%

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸！??！br

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/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――登陸/title

/head

body

center

h1留言管理范例 ―― JSP + JDBC實(shí)現(xiàn)/h1

hr

br

%

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

{

// 用戶(hù)已登陸

%

%!

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 ;

%

%

// 接收參數(shù)

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) ;

// 設(shè)置刪除條件

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)

{

%

留言刪除成功，兩秒后跳轉(zhuǎn)到留言列表頁(yè)?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="list_notes.jsp"這里/a！??！

%

}

else

{

%

留言刪除失敗，兩秒后跳轉(zhuǎn)到留言列表頁(yè)?。。r

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="list_notes.jsp"這里/a?。?！

%

}

%

%

}

else

{

// 用戶(hù)未登陸，提示用戶(hù)登陸，并跳轉(zhuǎn)

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

%

您還未登陸，請(qǐng)先登陸?。?！br

兩秒后自動(dòng)跳轉(zhuǎn)到登陸窗口?。?！br

如果沒(méi)有跳轉(zhuǎn)，請(qǐng)按a href="login.jsp"這里/a?。。r

%

}

%

/center

/body

/html

-- 創(chuàng)建表

-- 用戶(hù)表（登陸）、留言表

-- 刪除表

DROP TABLE person ;

DROP TABLE note ;

-- 刪除序列

DROP SEQUENCE note_sequ ;

-- 創(chuàng)建序列

CREATE SEQUENCE note_sequ ;

-- 創(chuàng)建person表

CREATE TABLE person

(

id varchar(20) not null primary key ,

name varchar(20) ,

password varchar(20)

) ;

-- 創(chuàng)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

) ;

-- 插入測(cè)試數(shù)據(jù)

INSERT INTO person VALUES ('LXH','李興華','zzzzzz') ;

INSERT INTO person VALUES ('MLDN','魔樂(lè)','mmmmmm') ;

-- 事務(wù)提交

commit ;

用Java web 做一個(gè)留言板 留言功能實(shí)現(xiàn)了，不知道怎么實(shí)現(xiàn)回復(fù)和刪除留言的功能，知道的高手，請(qǐng)幫幫忙。

先說(shuō)說(shuō)回復(fù)吧：

假如:

留言表（id , text ）兩個(gè)字段

回復(fù)表（ id , text parentId ）用來(lái)存放留言表id 三個(gè)字段

目前有一條留言

1001,'這是一條留言';

那么給這條留言的回復(fù)就是

1003 , '這是一條回復(fù)', 1001(這就是該留言的ID) 這樣就把留言和回復(fù)關(guān)聯(lián)上了

回復(fù)后點(diǎn)保存時(shí)，將數(shù)據(jù)傳入后臺(tái)，數(shù)據(jù)庫(kù)做insert操作就行了

刪除一樣的

如果刪除回復(fù)，直接傳入回復(fù)的ID 即可

如果刪除留言，得先判斷該留言有沒(méi)有回復(fù)，如果有回復(fù)，則先刪除回復(fù)，在刪除留言（外鍵約束）

網(wǎng)頁(yè)留言板的代碼

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沒(méi)有你所想去的頁(yè)數(shù)！/li")

Response.End

end if

end if

HEADER "顯示留言"

MyMenu

%

html

head

title[ 客戶(hù)留言系統(tǒng) ]/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="簽寫(xiě)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"

tr

td height="50"a href="gb_sign.asp"img src="IMAGES/shop.gif" alt="簽寫(xiě)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"

tr

td align="center" height="197"

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

tr

/tr

tr

/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"

tr

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?xún)?nèi)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對(duì)不起，目前還沒(méi)有任何留言，如要留言，請(qǐng)按“我要留言”圖片！/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%"

td

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

tr

/tr

/table

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

tr

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"

tr

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

/tr

tr

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

br

img src="images/boy.gif" alt="英俊瀟灑的 %=ASPBook("名字")% 先生" align="middle" border="0"

%elseif ASPBook("性別") = "girl" then%

img src="images/girl.gif" alt="美麗又溫柔的 %=ASPBook("名字")% 小姐" align="middle" border="0"

br

%end if%/td

/tr

tr

td width="100%" align="center" height="28"Form: %=ASPBook("來(lái)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("郵件")"" then%

a href="mailto:%=ASPBook("郵件")%"

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

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

a href="%=ASPBook("主頁(yè)")%" 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("系統(tǒng)")%" align="absmiddle" border="0" width="15" height="16"/td

/tr

tr

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

/tr

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"

tr

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

td width="450"/td

/tr

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"

tr

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="回復(fù)該留言" 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="刪除該留言" 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"

tr

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"

tr

td width="100%"

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

/p

/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

next

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

%

開(kāi)源里有沒(méi)有留言板的源代碼，JAVA的

絕對(duì)開(kāi)源，絕對(duì)明了的留言板，便于學(xué)習(xí)的源碼

用JAVA寫(xiě)的留言板原代碼

/*

* 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類(lèi)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: "宋體"; 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=""我的主頁(yè)/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 + " 條留言 ");

out.println(" 當(dāng)前第font color=#ff0000"+currentPage+"/font/共 "+totalPage+" 頁(yè) ");

if(currentPage1)

out.println(" a href=guestbookServlet?ipage=1首頁(yè)/a a href=guestbookServlet?ipage="+(currentPage-1)+"上一頁(yè)/a ");

else

out.println(" 首頁(yè) 上一頁(yè) ");

if(currentPagetotalPage)

out.println(" a href=guestbookServlet?ipage="+(currentPage+1)+"下一頁(yè)/a a href=guestbookServlet?ipage="+totalPage+"末頁(yè)/a ");

else

out.println(" 下一頁(yè) 末頁(yè) ");

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

out.println("/TABLE");

out.println("BR");

//這里是顯示留言?xún)?nèi)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+ " 時(shí) "+ 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 留言時(shí)間："+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("還沒(méi)有留言！");

}

//結(jié)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(姓名和留言是必須有的!);}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/你申請(qǐng)用戶(hù)名?user=你的名字password=你的帳號(hào)";

try{

if(debug)

conn=DriverManager.getConnection("jdbc:odbc:ODBC源","用戶(hù)名","密碼口令");

else

conn=DriverManager.getConnection(sqlUrl);

}

catch(SQLException es){

System.err.println("和庫(kù)連接時(shí)出錯(cuò):"+es.getMessage());

}

}

protected void executeInsert(String sqlStr){

try{

Statement stmt=conn.createStatement();

stmt.executeUpdate(sqlStr);

}

catch(SQLException es){

System.err.println("執(zhí)行插入時(shí):"+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");

}

}

//查尋

protected ResultSet executeQuery(String sqlStr){

rs=null;

try{

Statement stmt=conn.createStatement();

rs=stmt.executeQuery(sqlStr);

}

catch(SQLException ex){

System.err.println("執(zhí)行查尋出錯(cuò)："+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("執(zhí)行動(dòng)態(tài)查尋出錯(cuò)");

}

return rs;

}

//得到表記錄總數(shù)

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;

}

//得到記錄總頁(yè)數(shù)

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簡(jiǎn)單留言板

您好。我重新地幫你寫(xiě)了代碼，完全地符合了你的圖片中的界面要求、功能要求。代碼如下：（解決了問(wèn)題，記得給我分哦~^_^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("地說(shuō)：");

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?xún)?nèi)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()+"地說(shuō)："+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?xún)?nèi)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("置頂");

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();

}

}

本文名稱(chēng)：java網(wǎng)頁(yè)留言板源代碼 JAVA留言板
文章鏈接：http://muchs.cn/article48/doocdep.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián)，為您提供靜態(tài)網(wǎng)站、用戶(hù)體驗(yàn)、品牌網(wǎng)站設(shè)計(jì)、自適應(yīng)網(wǎng)站、虛擬主機(jī)、小程序開(kāi)發(fā)

廣告

聲明：本網(wǎng)站發(fā)布的內(nèi)容（圖片、視頻和文字）以用戶(hù)投稿、用戶(hù)轉(zhuǎn)載內(nèi)容為主，如果涉及侵權(quán)請(qǐng)盡快告知，我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng)，如需處理請(qǐng)聯(lián)系客服。電話：028-86922220；郵箱：631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載，或轉(zhuǎn)載時(shí)需注明來(lái)源： 創(chuàng)新互聯(lián)