摘要：NewsPic控制器代码：<?php namespace app\admin\controller; use app\admin\controller\Common; use app\admin\model\NewsModel; use think\facade\Request; use think\facade\Session; use&n
NewsPic控制器代码：
<?php
namespace app\admin\controller;
use app\admin\controller\Common;
use app\admin\model\NewsModel;
use think\facade\Request;
use think\facade\Session;
use app\admin\model\NewsPicModel;
use think\Paginate;
class NewsPic extends Common
{
public function index()
{
$pics = NewsPicModel::order('id','desc')->paginate(1);
$this->view->pics = $pics;
//渲染新闻缩略图列表
return $this->fetch();
}
public function add()
{
//查询所有新闻数据
$news = NewsModel::all();
//将数据赋值给模板
$this->view->news = $news;
//渲染新闻缩略图添加界面
return $this->fetch();
}
public function upload()
{
//获取上传图片的信息
$file = Request::file('file');
//验证图片并移动到指定目录
if($info = $file->validate(['ext'=>'jpg,jpeg,png,gif'])->move('upload')){
//拼接图片路径
$fileName = '/upload/'.$info->getSaveName();
//返回上传成功的提示信息
return json([1,'上传成功！','data'=>$fileName]);
}else{
//返回上传失败的错误信息
return $file->getError();
}
}
public function DoAdd()
{
//获取提交的数据
$data = Request::param();
$data['time'] = time();
$data['username'] = Session::get('username');
$newPic = new NewsPicModel();
if($newPic->save($data)){
return ['res'=>1,'msg'=>'发布成功'];
}else{
return ['res'=>0,'msg'=>'发布失败'];
}
}
public function del()
{
$picId = Request::param('id');
if(NewsPicModel::destroy($picId)){
return ['res'=>1,'msg'=>'删除成功'];
}
}
}index.html模板代码：
{include file="public/head"}
<body>
<div class="x-nav">
<span class="layui-breadcrumb">
<a href="">首页</a>
<a href="">演示</a>
<a>
<cite>导航元素</cite></a>
</span>
<a class="layui-btn layui-btn-small" style="line-height:1.6em;margin-top:3px;float:right" href="javascript:location.replace(location.href);" title="刷新">
<i class="layui-icon" style="line-height:30px">ဂ</i></a>
</div>
<div class="x-body">
<xblock>
<button class="layui-btn" onclick="x_admin_show('添加用户','{:url(\'NewsPic/add\')}')"><i class="layui-icon"></i>添加</button>
<span class="x-right" style="line-height:40px">共有数据：88 条</span>
</xblock>
<table class="layui-table">
<thead>
<tr>
<th>图片ID</th>
<th>所属新闻</th>
<th>图片</th>
<th>发布管理员</th>
<th>发布日期</th>
<th >操作</th>
</tr>
</thead>
<tbody>
{volist name="pics" id="pic"}
<tr>
<td>{$pic.id}</td>
<td>{:GetTitle($pic.news_id)}</td>
<td><img src="{$pic.pic}" alt=""></td>
<td>{$pic.username}</td>
<td>{$pic.time|date="Y-m-d"}</td>
<td class="td-manage">
<a title="删除" onclick="member_del(this,'{$pic.id}')" href="javascript:;">
<i class="layui-icon"></i>
</a>
</td>
</tr>
{/volist}
</tbody>
</table>
<div class="page">
<div>
{$pics|raw}
</div>
</div>
</div>
<script>
layui.use('laydate', function(){
var laydate = layui.laydate;
//执行一个laydate实例
laydate.render({
elem: '#start' //指定元素
});
//执行一个laydate实例
laydate.render({
elem: '#end' //指定元素
});
});
/*用户-删除*/
function member_del(obj,id){
layer.confirm('确认要删除吗？',function(index){
//发异步删除数据
$.get('{:url("del")}','id='+id,function(data){
if(data.res == 1){
$(obj).parents("tr").remove();
layer.msg(data.msg,{icon:1,time:1000});
}
});
});
}
</script>
</body>
</html>add.html模板代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>
X-admin v1.0
</title>
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="format-detection" content="telephone=no">
<link rel="stylesheet" href="__ADMIN__/css/x-admin.css" media="all">
</head>
<body>
<div class="x-body">
<form class="layui-form">
<div class="layui-form-item">
<label for="news_id" class="layui-form-label">
<span class="x-red">*</span>选择新闻
</label>
<div class="layui-input-inline">
<select name="news_id" id="news_id">
{volist name="news" id="new"}
<option value="{$new.id}">{$new.title}</option>
{/volist}
</select>
</div>
</div>
<div class="layui-form-item">
<label for="link" class="layui-form-label">
<span class="x-red">*</span>新闻图片
</label>
<button type="button" class="layui-btn" id="test1">
<i class="layui-icon"></i>上传图片
</button>
</div>
<div class="layui-form-item">
<label class="layui-form-label">缩略图
</label>
<img id="LAY_demo_upload" width="400" src="">
</div>
<div class="layui-form-item">
<label for="L_repass" class="layui-form-label">
</label>
<button class="layui-btn" lay-filter="add" lay-submit="">
增加
</button>
</div>
</form>
</div>
<script src="__ADMIN__/js/layui.js" charset="utf-8">
</script>
<script src="__ADMIN__/js/x-layui.js" charset="utf-8">
</script>
<script src="__ADMIN__/plugins/layui/layui.js" charset="utf-8">
</script>
<!-- <script>
layui.use('upload', function(){
var upload = layui.upload;
//执行实例
var uploadInst = upload.render({
elem: '#test1' //绑定元素
,url: '{:url("upload")}' //上传接口
,done: function(res){
//上传完毕回调
}
,error: function(){
//请求异常回调
}
});
});
</script> -->
<script>
layui.use(['form','layer','upload'], function(){
$ = layui.jquery;
var form = layui.form
,layer = layui.layer;
var upload = layui.upload;
//执行实例
var uploadInst = upload.render({
elem: '#test1' //绑定元素
,url: '{:url("upload")}' //上传接口
,done: function(res){
//上传完毕回调
// console.log(res);
$('#LAY_demo_upload').attr('src',res.data);
}
,error: function(){
//请求异常回调
}
});
// //图片上传接口
// layui.upload({
// url: '' //上传接口
// ,success: function(res){ //上传成功后的回调
// console.log(res);
// $('#LAY_demo_upload').attr('src',res.url);
// }
// });
//监听提交
form.on('submit(add)', function(data){
// console.log(data);
//发异步，把数据提交给php
$.post('{:url("DoAdd")}',{
'news_id':$('#news_id').val(),
'pic':$('#LAY_demo_upload').attr('src')
},function(data){
if(data.res == 1){
layer.alert(data.msg, {icon: 6},function () {
// 获得frame索引
var index = parent.layer.getFrameIndex(window.name);
//关闭当前frame
parent.layer.close(index);
});
}else{
layer.alert(data.msg, {icon: 6},function () {
// 获得frame索引
var index = parent.layer.getFrameIndex(window.name);
//关闭当前frame
parent.layer.close(index);
});
}
});
return false;
});
});
</script>
</body>
</html>
批改老师：天蓬老师批改时间：2018-12-25 11:23:11
老师总结：通过这个练习, 可以理解前后端的交互原理,数据传递的过程,这个是透明的, 在编程时,时刻打开控制台查看
