理清逻辑先做什么在做什么
1.先做登录页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>登录页面</title>
</head>
<script src="../jquery-1.11.2.min.js"></script>
<body>
<h1>登录页面</h1>
<div>用户名：<input type="text" id="uid" /></div>
<div>密码：<input type="password" id="pwd" /></div>
<div><input type="button" value="登录" id="btn"/></div>
</body>
<script type="text/javascript">
$("#btn").click(function(){
var uid = $("#uid").val(); <!--定义uid取其中的值-->
var pwd = $("#pwd").val(); <!--定义pwd取其中的值-->
$.ajax({
url:"loginchuli.php", <!--数据处理的地址-->
data:{uid:uid,pwd:pwd}, <!--发送到服务器的数据-->
type:"POST", <!--取值类型-->
dataType:"TEXT", <!--返回数据类型-->
success: function(data){
if(data.trim()=="OK"){
window.location.href="main.php";
}else{
alert("用户名或密码错误！");
}
}
});
})
</script>
</html>
2.做登录页面的处理数据
<?php
//登录处理
session_start();
require_once "DBDA.class.php"; //用DBDA类
$uid = $_POST["uid"]; //用post取uid值
$pwd = $_POST["pwd"]; //用post取pwd值
$db = new DBDA();
$sql = "select password from yuangong where username=‘{$uid}‘";
//sql语句执行查询和验证是否密码相同
$mm = $db->strquery($sql);
//调用strquery方法
if(!empty($pwd) && $pwd==$mm){
//验证密码是否为空和验证密码是否相同
$_SESSION["uid"] = $uid;
echo "OK";
}else{
echo "NO";
}
3.做主页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>主页面</title>
</head>
<script src="../jquery-1.11.2.min.js"></script>
<body>
<h1>主页面</h1>
<?php
//阻止用户跳过登录
session_start(); //开启session
if(empty($_SESSION["uid"])){
header("location:login.php"); //登录失败掉回登录页面
exit;
}
?>
<div><a href="./fabu.php">发布消息</a> <a href="./zhuxiao.php">注销</a></div>
<br />
<div>消息列表：</div>
<br />
<table width="100%" border="1" cellpadding="0" cellspacing="0">
<tr>
<td>发送者</td>
<td>发送时间</td>
<td>留言内容</td>
</tr>
<tbody id="info"> <!--把info扔到一个tbody-->
</tbody>
</table>
</body>
<script type="text/javascript">
$(document).ready(function(e) {
$.ajax({
url:"load.php", //跳转数据处理
dataType:"TEXT",
success: function(data){
var str = ""; <!--数据库中数据分割拼接-->
var hang = data.split("|");
for(var i=0;i<hang.length;i++){
var lie = hang[i].split("^");
str += "<tr><td>"+lie[0]+"</td><td>"+lie[1]+"</td><td>"+lie[2]+"</td></tr>";
//str拼接分割时不要有空格和换行否则会出错
}
$("#info").html(str);
}
});
});
</script>
</html>
4.做主页面处理数据页面
<?php
//主页处理
session_start();
require_once "DBDA.class.php";
$db = new DBDA();
$uid = $_SESSION["uid"];
$sql = "select yuangong.name,liuyan.times,liuyan.comment from liuyan,yuangong where recever=‘{$uid}‘ and yuangong.username=liuyan.sender";
echo $db->strquery($sql);
5.做注销处理
<?php
//注销按键处理
session_start();
unset($_SESSION["uid"]);
header("location:login.php");
6.做发布页面
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>发布页面</title>
<script src="../jquery-1.11.2.min.js">
</script>
</head>
<body>
<h1>发布留言</h1>
<div>
请选择好友：
<select id="haoyou"> <!-- 做一个选择好友的下拉列表-->
</select>
</div>
<br />
<div>
请输入留言内容：
<textarea id="neirong"></textarea>
</div>
<br />
<div>
<input type="button" value="发送" id="btn" />
</div>
</body>
<script type="text/javascript">
$(document).ready(function(e) {
$.ajax({
url:"haoyou.chuli.php",
dataType:"TEXT",
success: function(data){
var str = "";
var hang = data.split("|");
for(var i=0;i<hang.length;i++){
var lie = hang[i].split("^");
str += "<option value=‘"+lie[0]+"‘>"+lie[1]+"</option>";
}
$("#haoyou").html(str);
}
});
$("#btn").click(function(){
var fuid = $("#haoyou").val();
var neirong = $("#neirong").val();
$.ajax({
url:"fabuchuli.php",
data:{fuid:fuid,neirong:neirong},
type:"POST",
dataType:"TEXT",
success:function(data){
if(data.trim()=="OK"){
alert("发布成功！");
}else{
alert("发布失败！");
}
}
});
})
});
</script>
</body>
</html>
7.做发布处理页面
<?php
//发布处理页面
session_start();
require_once "DBDA.class.php";
$db = new DBDA();
$uid = $_SESSION["uid"];
$time = date("Y-m-d H:i:s"); //取时间
$fuid = $_POST["fuid"];
$neirong = $_POST["neirong"];
$sql = "insert into liuyan values(0,‘{$uid}‘,‘{$fuid}‘,‘$time‘,‘{$neirong}‘,0)";
if($db->query($sql,1)){
echo "OK";
}else{
echo "NO";
}
8.做好友处理页面
<?php
//好友按键处理
session_start();
require_once "DBDA.class.php";
$db = new DBDA();
$uid = $_SESSION["uid"];
$sql = "select firend.firend,yuangong.name from firend,yuangong where me=‘{$uid}‘ and yuangong.username = firend.firend";
echo $db->strquery($sql);
原文地址：https://www.cnblogs.com/palpitate/p/8393377.html
时间： 2024-07-28 21:55:07