标签：list username echo open 服务 cas send inner view
实现的效果如下图所示：
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< <!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
<title>Document</title>
<style>
.box{
box-sizing: border-box;
width: 100%;
height: 100%;
padding: 100px;
position: absolute;
top: 0%;
left: 0%;
background-color: rgba(200, 200, 200, .7);
display: none;
}
.panel-footer{
display: flex;
justify-content: center;
align-items: center;
}
</style>
</head>
<body>
<div class="container">
<div class="panel panel-primary">
<div class="panel-heading">
<h2>学生成绩管理系统</h2>
</div>
<div class="panel-body">
<button type="button" class="btn btn-success select">获取学生成绩</button>
<button type="button" class="btn btn-success add">添加学生成绩</button>
<table class="table table-hover">
<thead>
<tr>
<th>学生学号</th>
<th>学生姓名</th>
<th>语文成绩</th>
<th>数学成绩</th>
<th>英语成绩</th>
<th colspan="2" style="text-align: center;">操作</th>
</tr>
</thead>
<tbody id="tb"> </tbody>
</table>
</div>
<div class=‘panel-footer‘>
<nav aria-label="...">
<ul class="pager">
<li class="previous disabled"><a href="#"><span aria-hidden="true">←</span> 上一页</a></li>
</ul>
</nav>
<nav aria-label="Page navigation">
<ul class="pagination">
<li class = ‘active‘><a href="#">1</a></li>
<li><a href="#">2</a></li>
<li><a href="#">3</a></li>
<li><a href="#">4</a></li>
<li><a href="#">5</a></li>
</ul>
</nav>
<nav aria-label="...">
<ul class="pager">
<li class="next"><a href="#">下一页 <span aria-hidden="true">→</span></a></li>
</ul>
</nav>
</div>
</div>
</div>
<div class=‘panel-body box‘>
<div class=‘form-group‘>
<label for="username">学生姓名：</label>
<input type="text" class=‘form-control‘ name=‘username‘ id="username" placeholder="学生姓名">
</div>
<div class=‘form-group‘>
<label for="chinese">语文成绩：</label>
<input type="text" class=‘form-control‘ name=‘chinese‘ placeholder="语文成绩">
</div>
<div class=‘form-group‘>
<label for="math">数学成绩：</label>
<input type="text" class=‘form-control‘ name=‘math‘ placeholder="数学成绩">
</div>
<div class=‘form-group‘>
<label for="english">英语成绩：</label>
<input type="text" class=‘form-control‘ name=‘english‘ placeholder="英语成绩">
</div>
<button id = ‘btn1‘ class = ‘btn btn-primary cancel‘>取消</button>
<button id = ‘submit‘ class = ‘btn btn-primary‘>确定</button>
</div>
</body>
<script type="module">
import {post} from "./ajax.js";
var oBtain = document.querySelector(".select");
var oAdd = document.querySelector(".add")
var oTb = document.querySelector("#tb");
var oBox = document.querySelector(".box");
var oCancel =document.querySelector(".cancel");
var oSubmit = document.getElementById("submit");
//展示信息
function show(){
post({
url:"show.php",
success:function(result){
var arr = JSON.parse(result);
var str = ‘‘;
for(var i = 0;i<arr.length;i++){
str +=`<tr>
<td>${arr[i].id}</td>
<td>${arr[i].username}</td>
<td>${arr[i].chinese}</td>
<td>${arr[i].math}</td>
<td>${arr[i].english}</td>
<td ><button type="button" class="btn btn-danger" id=‘${arr[i].id}‘>删除</button></td>
<td><button type="button" class="btn btn-warning" id=‘${arr[i].id}‘>修改</button></td>
</tr>`
}
oTb.innerHTML=str;
},
error:function(error){
console.log(error)
}
})
}
oBtain.onclick = function(){
show()
}
var aIput = document.querySelectorAll("input");
//插入信息
oAdd.onclick = function(){
oBox.style.display="block";
oSubmit.onclick = function(){
post({
url:"insert.php",
data:{
username:aIput[0].value,
chinese:aIput[1].value,
math:aIput[2].value,
english:aIput[3].value,
},
success:function(result){
if(result=="success"){
alert("添加成功")
}else{
alert("添加失败，请重试")
}
},
error:function(error){
console.log(error)
}
})
}
}
oCancel.onclick = function(){
oBox.style.display="none";
}
//删除和修改学生信息
oTb.onclick = function(eve){
var e = eve||window.event;
var target = e.target ||e.srcElement;
if(target.nodeName.toLocaleLowerCase() == ‘button‘){
switch(target.className){
//删除
case ‘btn btn-danger‘:
post({
url:"delete.php",
data:{
id:target.id
},
success:function(result){
if(result=="success"){
oTb.removeChild(target.parentNode.parentNode);
alert("删除成功")
}else{
alert("删除失败")
}
}
});
break;
//修改
case ‘btn btn-warning‘:
post({
url:"update.php",
data:{
id:target.id
},
success:function(result){
var arr = JSON.parse(result);
oBox.style.display="block";
aIput[0].value=arr[0].username,
aIput[1].value=arr[0].chinese,
aIput[2].value=arr[0].math,
aIput[3].value=arr[0].english;
var id = arr[0].id;
oSubmit.onclick=function(){
post({
url:"update1.php",
data:{
id:id,
username:aIput[0].value,
chinese:aIput[1].value,
math:aIput[2].value,
english:aIput[3].value,
},
success:function(result){
if(result=="success"){
alert("修改成功")
}else{
alert("请重新修改")
}
}
})
}
}
})
}
}
}
</script>
</html>
export{
post,
get,
ajax
}
function post(){
var argus =Object.assign({"method" :"post"},...arguments)
var g = new Ajax(argus);
g.init();
g.type()
}
function get(){
var argus =Object.assign({"method" :"get"},...arguments)
var g = new Ajax(argus);
g.init();
g.type()
}
// function ajax(){
// var a =new Ajax(...arguments);
// a.init();
// a.type();
// }
function ajax(){
var a = new Ajax(...arguments);
a.init();
a.type()
}
class Ajax{
constructor({method,url,data,success,error}){
this.method = method;
this.url = url;
this.data = data;
this.success = success;
this.error = error;
}
init(){
var xhr = null;
try{
xhr = new XMLHttpRequest;
}catch{
xhr = new ActiveXObject("XMLHTTP");
}
return xhr;
}
type(){
var xhr= this.init()
var querystring=""
if(this.data){
querystring = this.queryString(this.data);
}
if(this.method=="get"){
xhr.open(this.method,this.url+"?"+querystring,true);
xhr.send();
}else{
xhr.open(this.method,this.url,true);
xhr.setRequestHeader(‘content-type‘, "application/x-www-form-urlencoded");
xhr.send(querystring);
}
xhr.onreadystatechange = ()=>{
if(xhr.readyState ==4){
if(xhr.status==200){
if(this.success){
this.success(xhr.responseText)
}
}else{
if(this.error){
this.error("error"+xhr.status)
}
}
}
}
}
queryString(dataObj){
var str=‘‘;
for(var attr in dataObj){
str+=`${attr}=${dataObj[attr]}&`
}
return str.substring(0,str.length-1)
}
}
<?php
header("content-type:text/html,charset=‘utf8‘");
$page = $_POST[‘page‘] ? $_POST[‘page‘] :1;
$limit = $_POST[‘limit‘] ? $_POST[‘limit‘]:10;
$count = 0; //总条数
$pages = 0; //总页数
$skip = 0; //跳过的条数
$link=mysqli_connect("localhost","root","root");
if(!$link){
echo "服务器忙，请重试";
exit;
}
mysqli_set_charset($link,"utf8");
mysqli_select_db($link,"nz");
$sql = "SELECT COUNT(*) FROM students";
$res=mysqli_query($link,$sql);
$row = mysqli_fetch_assoc($res);
$count = $row[‘COUNT(*)‘];
// echo $count;
$pages = ceil($count / $limit);
$page = max(1, $page);
$page = min($page, $pages);
$skip = ($page -1) * $limit;
$msg =array(
"page" => $page,
"count" => $count,
"pages" => $pages,
"limit" => $limit,
"skip" => $skip,
"userlist" => array()
);
$sql2 = "SELECT * FROM students LIMIT {$skip}, {$limit}";
$res2 = mysqli_query($link, $sql2);
while($row2 = mysqli_fetch_assoc($res2)){
array_push($msg[‘userlist‘], $row2);
}
echo json_encode($msg);
mysqli_close($link);
?>
<?php
header("content-type:text/html,charset=‘utf8‘");
$username = $_POST[‘username‘];
$chinese = $_POST[‘chinese‘];
$math = $_POST[‘math‘];
$english = $_POST[‘english‘];
$link = mysqli_connect("localhost","root","root");
if(!$link){
echo "服务器忙，请稍后重试";
exit;
};
mysqli_set_charset($link,"utf8");
mysqli_select_db($link,"nz");
$sql ="insert into students (username,chinese,math,english) values(‘{$username}‘,‘{$chinese}‘,‘{$math}‘,‘{$english}‘)";
$res = mysqli_query($link,$sql);
if($res){
echo "success";
}else{
echo "error";
};
mysqli_close($link);
?>
<?php
header(‘content-type:text/html,charset="utf8"‘);
$id=$_POST[‘id‘];
$link=mysqli_connect("localhost","root","root");
if(!$link){
echo "服务器忙，请重试";
exit;
};
mysqli_set_charset($link,"utf8");
mysqli_select_db($link,"nz");
$sql="delete from students where id={$id}";
$res = mysqli_query($link,$sql);
if($res){
echo "success";
}else{
echo "error";
};
mysqli_close($link);
?>
<?php
header("content-type:text/html,charset=‘utf8‘");
$id=$_POST[‘id‘];
$link=mysqli_connect("localhost","root","root");
if(!$link){
echo "服务器忙，请重试";
exit;
}
mysqli_set_charset($link,"utf8");
mysqli_select_db($link,"nz");
$sql="select * from students where id =‘{$id}‘";
$res=mysqli_query($link,$sql);
$arr = array();
while($row=mysqli_fetch_assoc($res)){
array_push($arr,$row);
};
echo json_encode($arr);
mysqli_close($link);
?>
<?php
header("content-type:text/html,charset=‘utf8‘");
$id = $_POST[‘id‘];
$username = $_POST[‘username‘];
$chinese = $_POST[‘chinese‘];
$math = $_POST[‘math‘];
$english = $_POST[‘english‘];
$link=mysqli_connect("localhost","root","root");
if(!$link){
echo "服务器忙，请重试";
exit;
}
mysqli_set_charset($link,"utf8");
mysqli_select_db($link,"nz");
// $sql="delete from students where id={$id}";
$sql = "UPDATE students SET username ={$username} ,chinese ={$chinese},math={$math},english={$english} where id={$id}";
$res=mysqli_query($link,$sql);
if($res){
echo "success";
}else{
echo "error";
};
mysqli_close($link);
?>
标签：list username echo open 服务 cas send inner view
原文地址：https://www.cnblogs.com/cupid10/p/13284473.html
