Thinkphp ajax实现评论回复

Posted

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Thinkphp ajax实现评论回复相关的知识,希望对你有一定的参考价值。

                                        这个是控制器代码

 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
<?php
namespace Home\Controller;
use Think\Controller;
class IndexController extends Controller {
public function index(){
$num = M(‘comment‘)->count(); //获取评论总数
$this->assign(‘num‘,$num);
$data=array();
$data=$this->getCommlist();//获取评论列表
$this->assign("commlist",$data);
$this->display(‘index‘);
}
 
/**
*添加评论
*/
public function addComment(){
 
$data=array();
if((isset($_POST["comment"]))&&(!empty($_POST["comment"]))){
$cm = json_decode($_POST["comment"],true);//通过第二个参数true,将json字符串转化为键值对数组
$cm[‘create_time‘]=date(‘Y-m-d H:i:s‘,time());
$newcm = M(‘comment‘);
$id = $newcm->add($cm);
 
$cm["id"] = $id;
$data = $cm;
 
$num = M(‘comment‘)->count();//统计评论总数
$data[‘num‘]= $num;
 
}else{
$data["error"] = "0";
}
 
 
echo json_encode($data);
}
 
 
 
/**
*递归获取评论列表
*/
protected function getCommlist($parent_id = 0,&$result = array()){
$arr = M(‘comment‘)->where("parent_id = ‘".$parent_id."‘")->order("create_time desc")->select();
if(empty($arr)){
return array();
}
foreach ($arr as $cm) {
$thisArr=&$result[];
$cm["children"] = $this->getCommlist($cm["id"],$thisArr);
$thisArr = $cm;
}
return $result;
}
 
}

 

 这个是javascript代码

 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
$(function(){
 
//点击提交评论内容
$(‘body‘).delegate(‘.comment-submit‘,‘click‘,function(){
var content = $.trim($(this).parent().prev().children("textarea").val());//根据布局结构获取当前评论内容
$(this).parent().prev().children("textarea").val("");//获取完内容后清空输入框
if(""==content){
alert("评论内容不能为空!");
}else{
var cmdata = new Object();
cmdata.parent_id = $(this).attr("parent_id");//上级评论id
cmdata.content = content;
cmdata.nickname = "游客";//测试用数据
cmdata.head_pic = "/Public/images/default.jpg";//测试用数据
var replyswitch = $(this).attr("replyswitch");//获取回复开关锁属性
 
$.ajax({
type:"POST",
url:"/index.php/home/index/addComment",
data:{
comment:JSON.stringify(cmdata)
},
dataType:"json",
success:function(data){
if(typeof(data.error)=="undefined"){
$(".comment-reply").next().remove();//删除已存在的所有回复div
//更新评论总数
$(".comment-num").children("span").html(data.num+"条评论");
//显示新增评论
var newli = "";
if(cmdata.parent_id == "0"){
//发表的是一级评论时,添加到一级ul列表中
newli = "<li comment_id=‘"+data.id+"‘><div ><div><img class=‘head-pic‘ src=‘"+data.head_pic+"‘ alt=‘‘></div><div class=‘cm‘><div class=‘cm-header‘><span>"+data.nickname+"</span><span>"+data.create_time+"</span></div><div class=‘cm-content‘><p>"+data.content+"</p></div><div class=‘cm-footer‘><a class=‘comment-reply‘ comment_id=‘"+data.id+"‘ href=‘javascript:void(0);‘>回复</a></div></div></div><ul class=‘children‘></ul></li>";
$(".comment-ul").prepend(newli);
}else{
//否则添加到对应的孩子ul列表中
if(‘off‘==replyswitch){//检验出回复关闭锁存在,即三级评论不再提供回复功能
newli = "<li comment_id=‘"+data.id+"‘><div ><div><img class=‘head-pic‘ src=‘"+data.head_pic+"‘ alt=‘‘></div><div class=‘children-cm‘><div class=‘cm-header‘><span>"+data.nickname+"</span><span>"+data.create_time+"</span></div><div class=‘cm-content‘><p>"+data.content+"</p></div><div class=‘cm-footer‘></div></div></div><ul class=‘children‘></ul></li>";
}else{//二级评论的回复按钮要添加回复关闭锁属性
newli = "<li comment_id=‘"+data.id+"‘><div ><div><img class=‘head-pic‘ src=‘"+data.head_pic+"‘ alt=‘‘></div><div class=‘children-cm‘><div class=‘cm-header‘><span>"+data.nickname+"</span><span>"+data.create_time+"</span></div><div class=‘cm-content‘><p>"+data.content+"</p></div><div class=‘cm-footer‘><a class=‘comment-reply‘ comment_id=‘"+data.id+"‘ href=‘javascript:void(0);‘ replyswitch=‘off‘ >回复</a></div></div></div><ul class=‘children‘></ul></li>";
}
$("li[comment_id=‘"+data.parent_id+"‘]").children("ul").prepend(newli);
}
 
}else{
//有错误信息
alert(data.error);
}
 
}
});
}
 
 
});
 
 
 
//点击"回复"按钮显示或隐藏回复输入框
$("body").delegate(".comment-reply","click",function(){
if($(this).next().length>0){//判断出回复div已经存在,去除掉
$(this).next().remove();
}else{//添加回复div
$(".comment-reply").next().remove();//删除已存在的所有回复div
//添加当前回复div
var parent_id = $(this).attr("comment_id");//要回复的评论id
 
var divhtml = "";
if(‘off‘==$(this).attr("replyswitch")){//二级评论回复后三级评论不再提供回复功能,将关闭属性附加到"提交回复"按钮"
divhtml = "<div class=‘div-reply-txt‘ style=‘width:98%;padding:3px;‘ replyid=‘2‘><div><textarea class=‘txt-reply‘ replyid=‘2‘ style=‘width: 100%; height: 60px;‘></textarea></div><div style=‘margin-top:5px;text-align:right;‘><a class=‘comment-submit‘ parent_id=‘"+parent_id+"‘ style=‘font-size:14px;text-decoration:none;‘ href=‘javascript:void(0);‘ replyswitch=‘off‘ >提交回复</a></div></div>";
}else{
divhtml = "<div class=‘div-reply-txt‘ style=‘width:98%;padding:3px;‘ replyid=‘2‘><div><textarea class=‘txt-reply‘ replyid=‘2‘ style=‘width: 100%; height: 60px;‘></textarea></div><div style=‘margin-top:5px;text-align:right;‘><a class=‘comment-submit‘ parent_id=‘"+parent_id+"‘ style=‘font-size:14px;text-decoration:none;‘ href=‘javascript:void(0);‘>提交回复</a></div></div>";
}
$(this).after(divhtml);
}
});
 
})
这个是页面样式代码
 
.comment-filed{
width:640px;
margin:0 auto;
}
 
.comment-num{
text-align: right;
font-size:14px;
}
.div-txt-submit{
text-align:right;
margin-top:8px;
 
}
 
.comment-submit{
 
margin-top:15px;
text-decoration:none;
color:#fff;
padding:5px;
font-size:14px;
}
 
.txt-commit{
border:1px solid blue;
width:620px;
height: 60px;
padding: 10px;
}
 
.txt-reply{
width: 100%;
height: 60px;
}
 
 
 
.comment-filed-list{
margin-top:20px;
}
 
.comment-list{
margin-top:2px;
width:herit;
height:50px;
border-top:1px solid gray;
}
 
.comment-ul{
list-style:none;
padding-left:0;
}
 
.head-pic{
width:40px;
height:40px;
}
 
.cm{
position:relative;
top:0px;
left:40px;
top:-40px;
width:600px;
}
 
.cm-header{
padding-left:5px;
}
 
.cm-content{
padding-left:5px;
}
 
.cm-footer{
padding-bottom:15px;
text-align:right;
border-bottom: 1px dotted #CCC;
}
 
.comment-reply{
text-decoration:none;
color:gray;
font-size: 14px;
}
 
.children{
list-style:none;
 
padding-left:0;
margin-left:40px;
}
 
.children-cm{
position:relative;
left:40px;
top:-40px;
width:90%;
}
 
这个是页面布局代码
   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>php评论及回复功能</title>
<link rel="stylesheet" type="text/css" href="/Public/css/comment.css">
<script type="text/javascript" src="/Public/js/jquery-1.11.3.min.js" ></script>
<script type="text/javascript" src="/Public/js/comment.js" ></script>
</head>
<body>
 
<div class="comment-filed">
<!--发表评论区begin-->
<div>
<div class="comment-num">
<span>{$num}条评论</span>
</div>
<div>
<div>
<textarea class="txt-commit" replyid="0"></textarea>
</div>
<div class="div-txt-submit">
<a class="comment-submit" parent_id="0" style="" href="javascript:void(0);"><span style=‘‘>发表评论</span></a>
</div>
</div>
</div>
<!--发表评论区end-->
 
<!--评论列表显示区begin-->
<!-- {$commentlist} -->
<div class="comment-filed-list" >
<div><span>全部评论</span></div>
<div class="comment-list" >
<!--一级评论列表begin-->
<ul class="comment-ul">
<volist name="commlist" id="data">
<li comment_id="{$data.id}">
<div >
<div>
<img class="head-pic" src="{$data.head_pic}" >
</div>
<div class="cm">
<div class="cm-header">
<span>{$data.nickname}</span>
<span>{$data.create_time}</span>
</div>
<div class="cm-content">
<p>
{$data.content}
</p>
</div>
<div class="cm-footer">
<a class="comment-reply" comment_id="{$data.id}" href="javascript:void(0);">回复</a>
</div>
</div>
</div>
 
<!--二级评论begin-->
<ul class="children">
<volist name="data.children" id="child" >
<li comment_id="{$child.id}">
<div >
<div>
<img class="head-pic" src="{$child.head_pic}" >
</div>
<div class="children-cm">
<div class="cm-header">
<span>{$child.nickname}</span>
<span>{$child.create_time}</span>
</div>
<div class="cm-content">
<p>
{$child.content}
</p>
</div>
<div class="cm-footer">
<a class="comment-reply" replyswitch="off" comment_id="{$child.id}" href="javascript:void(0);">回复</a>
</div>
</div>
</div>
 
<!--三级评论begin-->
<ul class="children">
<volist name="child.children" id="grandson" >
<li comment_id="{$grandson.id}">
<div >
<div>
<img class="head-pic" src="{$grandson.head_pic}" >
</div>
<div class="children-cm">
<div class="cm-header">
<span>{$grandson.nickname}</span>
<span>{$grandson.create_time}</span>
</div>
<div class="cm-content">
<p>
{$grandson.content}
</p>
</div>
<div class="cm-footer">
<!-- <a class="comment-reply" comment_id="1" href="javascript:void(0);">回复</a> -->
</div>
</div>
</div>
</li>
</volist>
</ul>
<!--三级评论end-->
 
</li>
</volist>
</ul>
<!--二级评论end-->
 
</li>
</volist>
</ul>
<!--一级评论列表end-->
</div>
</div>
<!--评论列表显示区end-->
</div>
</body>
</html>

 

这个是sql语句
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
DROP TABLE IF EXISTS `t_comment`;
 
CREATE TABLE `t_comment` (
`id` int(11) NOT NULL AUTO_INCREMENT COMMENT ‘主键id‘,
`parent_id` int(11) NOT NULL COMMENT ‘上级评论id,若是一级评论则为0‘,
`nickname` varchar(100) DEFAULT NULL COMMENT ‘评论人昵称‘,
`head_pic` varchar(400) DEFAULT NULL COMMENT ‘评论人头像‘,
`content` text COMMENT ‘评论内容‘,
`create_time` datetime DEFAULT NULL COMMENT ‘评论或回复发表时间‘,
PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=148 DEFAULT CHARSET=utf8;

以上是关于Thinkphp ajax实现评论回复的主要内容,如果未能解决你的问题,请参考以下文章

Django使用Ajax实现页面无刷新评论回复功能

js界面刷新&Django使用Ajax实现页面无刷新评论回复功能

thinkphp 留言 评论 系统

TP5.0实现无限极回复功能

博客项目实现文章评论功能(重点是评论回复)

thinkphp 无限极 评论