本文实例讲述了thinkPHP实现基于ajax的评论回复功能。分享给大家供大家参考，具体如下：
控制器代码:
rush:PHP;">
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;
}
}
JavaScript代码:
rush:js;">
$(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
$(".comment-num").children("span").html(data.num+"条评论");
//显示新增评论
var newli = "";
if(cmdata.parent_id == "0"){
//发表的是一级评论时，添加到一级ul列表中
newli = "![]("+data.head_pic+")
"+data.nickname+""+data.create_time+"
"+data.content+"
"+data.nickname+""+data.create_time+"
"+data.content+"
"+data.nickname+""+data.create_time+"
"+data.content+"
rush:css;">
.comment-filed{
width:640px;
margin:0 auto;
}
.comment-num{
text-align: right;
font-size:14px;
}
.div-txt-submit{
text-align:right;
margin-top:8px;
}
.comment-submit{
background-color:#63B8FF;
margin-top:15px;
text-decoration:none;
color:#fff;
padding:5px;
font-size:14px;
}
.txt-commit{
border:1px solid blue;
width:620px;
height: 60px;
padding: 10px;
}
.txt-reply{
width: 100%;
height: 60px;
}
.comment-filed-list{
margin-top:20px;
}
.comment-list{
margin-top:2px;
width:herit;
height:50px;
border-top:1px solid gray;
}
.comment-ul{
list-style:none;
padding-left:0;
}
.head-pic{
width:40px;
height:40px;
}
.cm{
position:relative;
top:0px;
left:40px;
top:-40px;
width:600px;
}
.cm-header{
padding-left:5px;
}
.cm-content{
padding-left:5px;
}
.cm-footer{
padding-bottom:15px;
text-align:right;
border-bottom: 1px dotted #CCC;
}
.comment-reply{
text-decoration:none;
color:gray;
font-size: 14px;
}
.children{
list-style:none;
background-color:#FAFAFA;
padding-left:0;
margin-left:40px;
}
.children-cm{
position:relative;
left:40px;
top:-40px;
width:90%;
}
rush:xhtml;">
<Meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<a href="/tag/PHP/" target="_blank" class="keywords">PHP</a><a href="/tag/pinglun/" target="_blank" class="keywords">评论</a>及<a href="/tag/huifu/" target="_blank" class="keywords">回复</a><a href="/tag/gongneng/" target="_blank" class="keywords">功能</a>
{$num}条评论