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留言板v2.0(添加了一个简单登录功能php+mysql)

2017-02-08 16:07 761 查看
简述:在之前基础上添加了一个非常简单的登录功能,不涉及数据库,本地判断。

第一步:建立数据库。(之前写过,在写一遍。)



第二步:登录界面代码login.php<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>留言板登录</title>
<style type="text/css">
.center{text-align: center;}
.login-page {
width: 360px;
padding: 8% 0 0;
margin: auto;
}
.form {
position: relative;
z-index: 1;
background: #FFFFFF;
max-width: 360px;
margin: 0 auto 100px;
padding: 45px;
text-align: center;
box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.2), 0 5px 5px 0 rgba(0, 0, 0, 0.24);
}
.form input {
font-family: "Roboto", sans-serif;
outline: 0;
background: #f2f2f2;
width: 100%;
border: 0;
margin: 0 0 15px;
padding: 15px;
box-sizing: border-box;
font-size: 14px;
}
.form button {
font-family: "Microsoft YaHei","Roboto", sans-serif;
text-transform: uppercase;
outline: 0;
background: #4CAF50;
width: 100%;
border: 0;
padding: 15px;
color: #FFFFFF;
font-size: 14px;
-webkit-transition: all 0.3 ease;
transition: all 0.3 ease;
cursor: pointer;
}
.form button:hover,.form button:active,.form button:focus {
background: #43A047;
}
.form .message {
margin: 15px 0 0;
color: #b3b3b3;
font-size: 12px;
}
.form .message a {
color: #4CAF50;
text-decoration: none;
}
.form .register-form {
display: none;
}
.container {
position: relative;
z-index: 1;
max-width: 300px;
margin: 0 auto;
}
.container:before, .container:after {
content: "";
display: block;
clear: both;
}
.container .info {
margin: 50px auto;
text-align: center;
}
.container .info h1 {
margin: 0 0 15px;
padding: 0;
font-size: 36px;
font-weight: 300;
color: #1a1a1a;
}
.container .info span {
color: #4d4d4d;
font-size: 12px;
}
.container .info span a {
color: #000000;
text-decoration: none;
}
.container .info span .fa {
color: #EF3B3A;
}
body {
background: #76b852; /* fallback for old browsers */
background: -webkit-linear-gradient(right, #76b852, #8DC26F);
background: -moz-linear-gradient(right, #76b852, #8DC26F);
background: -o-linear-gradient(right, #76b852, #8DC26F);
background: linear-gradient(to left, #76b852, #8DC26F);
font-family: "Roboto", sans-serif;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
}
.shake_effect{
-webkit-animation-name: shake;
animation-name: shake;
-webkit-animation-duration: 1s;
animation-duration: 1s;
}
@-webkit-keyframes shake {
from, to {
-webkit-transform: translate3d(0, 0, 0);
transform: translate3d(0, 0, 0);
}

10%, 30%, 50%, 70%, 90% {
-webkit-transform: translate3d(-10px, 0, 0);
transform: translate3d(-10px, 0, 0);
}

20%, 40%, 60%, 80% {
-webkit-transform: translate3d(10px, 0, 0);
transform: translate3d(10px, 0, 0);
}
}

@keyframes shake {
from, to {
-webkit-transform: translate3d(0, 0, 0);
transform: translate3d(0, 0, 0);
}

10%, 30%, 50%, 70%, 90% {
-webkit-transform: translate3d(-10px, 0, 0);
transform: translate3d(-10px, 0, 0);
}

20%, 40%, 60%, 80% {
-webkit-transform: translate3d(10px, 0, 0);
transform: translate3d(10px, 0, 0);
}
}
p.center{
color: #fff;font-family: "Microsoft YaHei";
}
</style>

</head>
<body>
<div class="htmleaf-container">
<div id="wrapper" class="login-page">
<div id="login_form" class="form">
<form class="register-form">
<input type="text" placeholder="用户名" id="r_user_name"/>
<input type="password" placeholder="密码" id="r_password" />
<input type="text" placeholder="电子邮件" id="r_emial"/>
<button id="create">创建账户</button>
<p class="message">已经有了一个账户? <a href="#">立刻登录</a></p>
</form>
<form class="login-form">
<input type="text" placeholder="用户名" id="user_name"/>
<input type="password" placeholder="密码" id="password"/>
<button id="login">登 录</button>
<p class="message">还没有账户? <a href="#">立刻创建</a></p>
</form>
</div>
</div>
</div>
<script src="js/jquery-2.1.1.min.js" type="text/javascript"></script>
<script type="text/javascript">
function check_login()
{
var name=$("#user_name").val();
var pass=$("#password").val();
if(name=="lcj" && pass=="lcj")
{
alert("登录成功!");
$("#user_name").val("");
$("#password").val("");
location.href='index.html'
}
else
{
$("#login_form").removeClass('shake_effect');
setTimeout(function()
{
$("#login_form").addClass('shake_effect')
},1);
}
}
function check_register(){
var name = $("#r_user_name").val();
var pass = $("#r_password").val();
var email = $("r_email").val();
if(name!="" && pass=="" && email != "")
{
alert("注册成功!");
$("#user_name").val("");
$("#password").val("");
}
else
{
$("#login_form").removeClass('shake_effect');
setTimeout(function()
{
$("#login_form").addClass('shake_effect')
},1);
}
}
$(function(){
$("#create").click(function(){
check_register();
return false;
})
$("#login").click(function(){
check_login();
return false;
})
$('.message a').click(function () {
$('form').animate({
height: 'toggle',
opacity: 'toggle'
}, 'slow');
});
})
</script>
</body>
</html>ps:这个登录非常简单,没有涉及过滤,检查,数据库,后期会修改。需要主要的地方就是自动跳转的方式。
第三步:留言界面代码index.php<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>留言板</title>
<link rel="stylesheet" type="text/css" href="css/css.css" />
</head>
<body>
<script language=javascript>
function CheckPost()
{
if (myform.userName.value=="")
{
alert("请填写用户名");
myform.userName .focus();
return false;
}
if (myform.title.value.length<5)
{
alert("标题不能少于5个字符");
myform.title.focus();
return false;
}
if (myform.content.value=="")
{
alert("必须要填写留言内容");
myform.content.focus();
return false;
}

}
</script>
<!-- onsubmit="return CheckPost();意思是执行表单前先执行这个函数 -->
<form action="addmsg.php" method="post" name = "myform" onsubmit="return CheckPost();">
<h1>留言板/<a href="showlist.php">留言展示</a></h1>
<br/>
用名:<input type="text" size="10" name="userName" /><br/>
标题:<input type="text" name="title" /><br/>
内容:<br/><textarea name="content" cols="60" rows="9" ></textarea><br/>
<input type="submit" name="submit" value="提交留言" />
</div>
</body>
</html>第四步链接数据库conn.php
<?php
$dbName = "bbs";
$conn = @ mysql_connect("localhost", "root", "12345678") or die("数据库链接错误");
$flag = mysql_select_db($dbName, $conn);
mysql_query("set names 'UTF-8'"); //使用UTF-8中文编码;
function toHtmlcode($content)
{
return $content = str_replace("\n","<br>",str_replace(" ", " ", $content));
}
?>


第五步写入数据库addmsg.php:
<html>
<head>
<meta http-equiv="refresh" content="1;url=showlist.php">
</head>
<body>
<?php
include("conn.php");
if(@$_POST['submit']){
$sql = "insert into message (id,user,title,content,lastdate)" .
"values ( '','$_POST[userName]','$_POST[title]','$_POST[content]',now())";
mysql_query($sql);
echo "添加成功";
}
?>
</body>
</html>
第六步:读取数据库显示shoulist.php:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>留言展示</title>
<link rel="stylesheet" type="text/css" href="css/css.css" />
</head>
<body>
<?php
include("conn.php");
?>
<table width=500 border="0" align="center" cellpadding="5" cellspacing="1" bgcolor="#add3ef">
<tr><td><h1 style="color: #5ee40d;">留言展示</h1></td></tr>
<?php
$sql = "SELECT * FROM message order by lastdate desc";
$query = mysql_query($sql);
while($row = mysql_fetch_array($query)){
?>
<tr bgcolor="#eff3ff">
<td>
<b style="font-size: 18px;color: #5ee40d;"><big>  标题:<?= $row['title']?></big><b/>
<b style="font-size: 10px;color: #5ee40d;"><sub>  用户:<?= $row['user']?></sub></b></td>
</tr>
<tr bgColor="#ffffff">
<td>  内容:<?= toHtmlcode($row['content'])?></td>
</tr>
8e0a

<?php
}
?>
<tr><td><a href="index.html">  继续留言</a></td></tr>
</table>
</body>
</html>
注意:这个留言板还存在很多问题,比如说在登录状态下才能留言等问题,这些后期我会慢慢解决,我会一步一步把这个留言板写完善,添加更多功能。
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