微信小程序客服消息教程

一、开发前准备工作

1、验证token是否有效

<?php   
 /**
     * token验证
     */
    public function valid(){
        $echoStr = $_GET["echostr"];
        $signature = $_GET["signature"];
        $timestamp = $_GET["timestamp"];
        $nonce = $_GET["nonce"];

        $token = "ddxc";
        $tmpArr = array($token, $timestamp, $nonce);
        sort($tmpArr, SORT_STRING);
        $tmpStr = implode( $tmpArr );
        $tmpStr = sha1( $tmpStr );

        if( $tmpStr == $signature && $echoStr ){
            echo $echoStr ;
            exit;
        }else {
            $this->responseMsg();
        }
    }

2、登录 https://mp.weixin.qq.com 设置->开发设置 消息推送

3、接入客服人员

二、代码实例

1、后端代码

<?php
    // 客服消息
    public function responseMsg(){
        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
    
        if (!empty($postStr) && is_string($postStr)){
            //禁止引用外部xml实体
            //libxml_disable_entity_loader(true);
            
            //$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
            $postArr = json_decode($postStr,true);
            if(!empty($postArr['MsgType']) && $postArr['MsgType'] == 'text'){   //文本消息
                $fromUsername = $postArr['FromUserName'];   //发送者openid
                $toUserName = $postArr['ToUserName'];       //小程序id
                $textTpl = array(
                    "ToUserName"=>$fromUsername,
                    "FromUserName"=>$toUserName,
                    "CreateTime"=>time(),
                    "MsgType"=>"transfer_customer_service",
                );
                exit(json_encode($textTpl));
            }elseif(!empty($postArr['MsgType']) && $postArr['MsgType'] == 'image'){ //图文消息
                $fromUsername = $postArr['FromUserName'];   //发送者openid
                $toUserName = $postArr['ToUserName'];       //小程序id
                $textTpl = array(
                    "ToUserName"=>$fromUsername,
                    "FromUserName"=>$toUserName,
                    "CreateTime"=>time(),
                    "MsgType"=>"transfer_customer_service",
                );
                exit(json_encode($textTpl));
            }elseif($postArr['MsgType'] == 'event' && $postArr['Event']=='user_enter_tempsession'){ //进入客服动作
                $fromUsername = $postArr['FromUserName'];   //发送者openid
                $content = '您好，有什么能帮助你?';
                $data=array(
                    "touser"=>$fromUsername,
                    "msgtype"=>"text",
                    "text"=>array("content"=>$content)
                );
                $json = json_encode($data,JSON_UNESCAPED_UNICODE);  //php5.4+
                
                // 引入第三方类库
		        Vendor('Wechat.Wechat');
		        $wechat = new \Wechat();
		        //获取access_token
		        $access_token = $wechat->getToken();
                /* 
                 * POST发送https请求客服接口api
                 */
                $url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=".$access_token;
                //以'json'格式发送post的https请求
                $curl = curl_init();
                curl_setopt($curl, CURLOPT_URL, $url);
                curl_setopt($curl, CURLOPT_POST, 1); // 发送一个常规的Post请求
                curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
                curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
                if (!empty($json)){
                    curl_setopt($curl, CURLOPT_POSTFIELDS,$json);
                }
                curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
                //curl_setopt($curl, CURLOPT_HTTPHEADER, $headers );
                $output = curl_exec($curl);
                if (curl_errno($curl)) {
                    echo 'Errno'.curl_error($curl);//捕抓异常
                }
                curl_close($curl);
                if($output == 0){
                    echo 'success';exit;
                }
                
            }else{
                exit('aaa');
            }
        }else{
            echo "";
            exit;
        }
    }

2、小程序相关代码

WXML

<!--index.wxml-->
<view class="container">
  <view class="userinfo">
    <button wx:if="{{!hasUserInfo && canIUse}}" open-type="getUserInfo" bindgetuserinfo="getUserInfo"> 获取头像昵称 </button>
    <block wx:else>
      <image bindtap="bindViewTap" class="userinfo-avatar" src="{{userInfo.avatarUrl}}" background-size="cover"></image>
      <text class="userinfo-nickname">{{userInfo.nickName}}</text>
    </block>
  </view>
  <view class="usermotto">
    <text class="user-motto">{{motto}}</text>
  </view>

  <button open-type="contact" > 联系客服 </button>
</view>

效果图

      
 

最后

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