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Heim > php教程 > php手册 > 微信公众平台开发（十二） 发送客服消息

微信公众平台开发（十二） 发送客服消息

WBOY
Freigeben： 2016-06-13 09:35:48
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当用户主动发消息给公众号的时候（包括发送信息、点击自定义菜单、订阅事件、扫描二维码事件、支付成功事件、用户维权），微信将会把消息数据推送给开发者，开发者在一段时间内（目前修改为48小时）可以调用客服消息接口，通过POST一个JSON数据包来发送消息给普通用户，在48小时内不限制发送次数。此接口主要用于客服等有人工消息处理环节的功能，方便开发者为用户提供更加优质的服务。

官方文档中只提供了一个发送客服消息的接口，开发者只要POST一个特定的JSON数据包即可实现消息回复。在这里，我们打算做成一个简单的平台，可以记录用户消息，并且用网页表格的形式显示出来，然后可以对消息进行回复操作。

首先，我们使用数据库记录用户主动发送过来的消息，然后再提取出来展示到页面，针对该消息，进行回复。这里我们只讨论文本消息，关于其他类型的消息，大家自行研究。

3.1 创建数据表

创建一张数据表tbl_customer 来记录用户消息。

<span --
--</span><span  表的结构 `tbl_customer`</span><span 
--
</span>
<span CREATE</span> <span TABLE</span><span  `tbl_customer` (
  `id` </span><span bigint</span>(<span 20</span>) unsigned <span NOT</span> <span NULL</span> AUTO_INCREMENT COMMENT <span '</span><span //消息ID</span><span '</span><span ,
  `from_user` </span><span char</span>(<span 50</span>) <span NOT</span> <span NULL</span> COMMENT <span '</span><span //消息发送者</span><span '</span><span ,
  `message` </span><span varchar</span>(<span 200</span>) <span NOT</span> <span NULL</span> COMMENT <span '</span><span //消息体</span><span '</span><span ,
  `time_stamp` </span><span datetime</span> <span NOT</span> <span NULL</span> COMMENT <span '</span><span //消息发送时间</span><span '</span><span ,
  </span><span PRIMARY</span> <span KEY</span><span  (`id`),
  </span><span KEY</span><span  `from_user` (`from_user`)
) ENGINE</span><span =</span>MyISAM  <span DEFAULT</span> CHARSET<span =</span>utf8 ;
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3.2 创建sql.func.php 文件

创建 _query($_sql) {} 函数，来执行INSERT 操作。

<span function</span> _query(<span $_sql</span><span ){
    </span><span if</span>(!<span $_result</span> = <span mysql_query</span>(<span $_sql</span><span )){
        </span><span exit</span>('SQL执行失败'.<span mysql_error</span><span ());
    }
    </span><span return</span> <span $_result</span><span ;
}</span>
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<span //</span><span 引入数据库处理函数</span>
<span require_once</span> 'sql.func.php'<span ;

</span><span function</span> _record_message(<span $fromusername</span>,<span $keyword</span>,<span $date_stamp</span><span ){
    </span><span //</span><span 调用_query()函数</span>
    _query("INSERT INTO tbl_customer(from_user,message,time_stamp) VALUES('<span $fromusername</span>','<span $keyword</span>','<span $date_stamp</span>')"<span );
}</span>
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3.4 处理并记录文本消息

A. 引入回复文本的函数文件，引入记录消息的函数文件

<span //</span><span 引入回复文本的函数文件</span>
<span require_once</span> 'responseText.func.inc.php'<span ;
</span><span //</span><span 引入记录消息的函数文件</span>
<span require_once</span> 'record_message.func.inc.php';
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B. 记录消息入数据库，并返回给用户刚才发送的消息，在这里，你可以修改成其他的文本，比如：“你好，消息已收到，我们会尽快回复您！” 等等。

    <span //</span><span 处理文本消息函数</span>
    <span public</span> <span function</span> handleText(<span $postObj</span><span )
    {
        </span><span //</span><span 获取消息发送者，消息体，时间戳</span>
        <span $fromusername</span> = <span $postObj</span>-><span FromUserName;
        </span><span $keyword</span> = <span trim</span>(<span $postObj</span>-><span Content);
        </span><span $date_stamp</span> = <span date</span>('Y-m-d H:i:s'<span );

        </span><span if</span>(!<span empty</span>( <span $keyword</span><span  ))
        {
            </span><span //</span><span 调用_record_message()函数，记录消息入数据库</span>
            _record_message(<span $fromusername</span>,<span $keyword</span>,<span $date_stamp</span><span );
            
            </span><span $contentStr</span> = <span $keyword</span><span ;
            </span><span //</span><span 调用_response_text()函数，回复发送者消息</span>
            <span $resultStr</span> = _response_text(<span $postObj</span>,<span $contentStr</span><span );
            </span><span echo</span> <span $resultStr</span><span ;
        }</span><span else</span><span {
            </span><span echo</span> "Input something..."<span ;
        }
    }</span>
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我们的最终效果大概如下所示，主要的工作在“信息管理中心”这块，其他的页面布局等等，不在这里赘述了，只讲解消息展示这块。

4.1 具体实施

引入数据库操作文件，执行分页模块，执行数据库查询，将查询出来的结果赋给$_result 供下面使用。

<span //</span><span 引入数据库操作文件</span>
<span require_once</span> 'includes/sql.func.php'<span ;

</span><span //</span><span 分页模块</span>
<span global</span> <span $_pagesize</span>,<span $_pagenum</span><span ;
_page(</span>"SELECT id FROM tbl_customer",15);        <span //</span><span 第一个参数获取总条数，第二个参数，指定每页多少条</span>
<span $_result</span> = _query("SELECT * FROM tbl_customer ORDER BY id DESC LIMIT <span $_pagenum</span>,<span $_pagesize</span>");
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将$_result 遍历出来，依次插入表格中。

<span <</span><span form</span><span ></span>
    <span <</span><span table </span><span cellspacing</span><span ="1"</span><span ></span>
        <span <</span><span tr</span><span ><</span><span th</span><span ></span>消息ID<span </</span><span th</span><span ><</span><span th</span><span ></span>发送者<span </</span><span th</span><span ><</span><span th</span><span ></span>消息体<span </</span><span th</span><span ><</span><span th</span><span ></span>消息时间<span </</span><span th</span><span ><</span><span th</span><span ></span>操作<span </</span><span th</span><span ></</span><span tr</span><span ></span>
        <span <?</span><span php 
            while(!!$_rows = _fetch_array_list($_result)){
                $_html = array();
                $_html['id'] = $_rows['id'];
                $_html['from_user'] = $_rows['from_user'];
                $_html['message'] = $_rows['message'];
                $_html['time_stamp'] = $_rows['time_stamp'];
        </span><span ?></span>
        <span <</span><span tr</span><span ><</span><span td</span><span ></span><span <?</span><span php echo $_html['id']</span><span ?></span><span </</span><span td</span><span ><</span><span td</span><span ></span><span <?</span><span php echo $_html['from_user']</span><span ?></span><span </</span><span td</span><span ><</span><span td</span><span ></span><span <?</span><span php echo $_html['message']</span><span ?></span><span </</span><span td</span><span ><</span><span td</span><span ></span><span <?</span><span php echo $_html['time_stamp']</span><span ?></span><span </</span><span td</span><span ><</span><span td</span><span ><</span><span a </span><span href</span><span ="reply.php?fromusername=<?php echo $_html['from_user']?>&message=<?php echo $_html['message']?>"</span><span ><</span><span input </span><span type</span><span ="button"</span><span  value</span><span ="回复"</span> <span /></</span><span a</span><span ></</span><span td</span><span ></</span><span tr</span><span ></span>
        <span <?</span><span php 
            }
            _free_result($_result);
        </span><span ?></span>
    <span </</span><span table</span><span ></span>
<span </</span><span form</span><span ></span>
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说明：在每条消息后，都有一个“回复”操作，点击该按钮，向reply.php文件中传入fromusername和用户发送的消息，为回复用户消息做准备。

5.1 创建客服消息回复函数文件customer.php

微信发送客服消息的接口URL如下：

https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=ACCESS_TOKEN
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需要POST的JSON数据包格式如下：

<span {
    "touser":"OPENID",
    "msgtype":"text",
    "text":
    {
         "content":"Hello World"
    }
}</span>
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所以，根据上面的提示，我们编写处理函数 _reply_customer($touser,$content)，调用的时候，传入touser和需要回复的content，即可发送客服消息。

<span function</span> _reply_customer(<span $touser</span>,<span $content</span><span ){
    
    </span><span //</span><span 更换成自己的APPID和APPSECRET</span>
    <span $APPID</span>="wxef78f22f877db4c2"<span ;
    </span><span $APPSECRET</span>="3f3aa6ea961b6284057b8170d50e2048"<span ;
    
    </span><span $TOKEN_URL</span>="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".<span $APPID</span>."&secret=".<span $APPSECRET</span><span ;
    
    </span><span $json</span>=<span file_get_contents</span>(<span $TOKEN_URL</span><span );
    </span><span $result</span>=json_decode(<span $json</span><span );
    
    </span><span $ACC_TOKEN</span>=<span $result</span>-><span access_token;
    
    </span><span $data</span> = '<span {
        "touser":"</span>'.<span $touser</span>.'<span ",
        "msgtype":"text",
        "text":
        {
             "content":"</span>'.<span $content</span>.'<span "
        }
    }</span>'<span ;
    
    </span><span $url</span> = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=".<span $ACC_TOKEN</span><span ;
    
    </span><span $result</span> = https_post(<span $url</span>,<span $data</span><span );
    </span><span $final</span> = json_decode(<span $result</span><span );
    </span><span return</span> <span $final</span><span ;
}

</span><span function</span> https_post(<span $url</span>,<span $data</span><span )
{
    </span><span $curl</span> =<span  curl_init();
    curl_setopt(</span><span $curl</span>, CURLOPT_URL, <span $url</span><span ); 
    curl_setopt(</span><span $curl</span>, CURLOPT_SSL_VERIFYPEER, <span FALSE</span><span );
    curl_setopt(</span><span $curl</span>, CURLOPT_SSL_VERIFYHOST, <span FALSE</span><span );
    curl_setopt(</span><span $curl</span>, CURLOPT_POST, 1<span );
    curl_setopt(</span><span $curl</span>, CURLOPT_POSTFIELDS, <span $data</span><span );
    curl_setopt(</span><span $curl</span>, CURLOPT_RETURNTRANSFER, 1<span );
    </span><span $result</span> = curl_exec(<span $curl</span><span );
    </span><span if</span> (curl_errno(<span $curl</span><span )) {
       </span><span return</span> 'Errno'.curl_error(<span $curl</span><span );
    }
    curl_close(</span><span $curl</span><span );
    </span><span return</span> <span $result</span><span ;
}</span>
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下面，我们就将上面写好的函数引入到消息回复页面，实现发送客服消息的功能。

5.2 点击“回复”按钮，带上fromusername和message参数跳转到reply.php。

5.3 reply.php 页面显示

5.4 reply.php文件分析

<span //</span><span 引入回复消息的函数文件</span>
<span require_once</span> '../customer.php';
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form表单提交到relpy.php本身，带有action=relpy.

<span <</span><span form </span><span method</span><span ="post"</span><span  action</span><span ="reply.php?action=reply"</span><span ></span>
    <span <</span><span dl</span><span ></span>
        <span <</span><span dd</span><span ><</span><span strong</span><span ></span>收件人：<span </</span><span strong</span><span ><</span><span input </span><span type</span><span ="text"</span><span  name</span><span ="tousername"</span><span  class</span><span ="text"</span><span  value</span><span ="<?php echo $from_username?>"</span> <span /></</span><span dd</span><span ></span>
        <span <</span><span dd</span><span ><</span><span strong</span><span ></span>原消息：<span </</span><span strong</span><span ><</span><span input </span><span type</span><span ="text"</span><span  name</span><span ="message"</span><span  class</span><span ="text"</span><span  value</span><span ="<?php echo $message?>"</span> <span /></</span><span dd</span><span ></span>
        <span <</span><span dd</span><span ><</span><span span</span><span ><</span><span strong</span><span ></span>内　容：<span </</span><span strong</span><span ></</span><span span</span><span ><</span><span textarea </span><span rows</span><span ="5"</span><span  cols</span><span ="34"</span><span  name</span><span ="content"</span><span ></</span><span textarea</span><span ></</span><span dd</span><span ></span>
        <span <</span><span dd</span><span ><</span><span input </span><span type</span><span ="submit"</span><span  class</span><span ="submit"</span><span  value</span><span ="回复消息"</span> <span /></</span><span dd</span><span ></span>
    <span </</span><span dl</span><span ></span>
<span </</span><span form</span><span ></span>
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action=reply 动作处理。

<span if</span>(<span $_GET</span>['action'] == "reply"<span ){
    </span><span $touser</span> = <span $_POST</span>['tousername'<span ];
    </span><span $content</span> = <span $_POST</span>['content'<span ];
    </span><span $result</span> = _reply_customer(<span $touser</span>, <span $content</span><span );
    
    </span><span if</span>(<span $result</span>->errcode == "0"<span ){
        _location(</span>'消息回复成功！', 'index.php'<span );
    }
}</span>
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说明：POST方式获取touser, content，然后调用_reply_customer($touser, $content)方法处理，处理成功，则弹出“消息回复成功！”，然后跳转到index.php页面，完成发送客服消息过程。

6.1 微信用户发送消息

6.2 平台消息管理

6.3 发送客服消息

再次发送客服消息

 

发送客服消息测试成功！

http://files.cnblogs.com/mchina/customer.rar

微信发送客服消息本身很简单，只需POST一个JSON数据包到指定接口URL即可。这里我们进行了扩展，写成一个简单的平台，方便企业的管理。还有很多需要补充和改进的地方，例如，记录客服发送的消息；将相同用户的消息记录成一个集合；实现其他格式的消息回复等，有待读者自行思考开发。

 

David Camp

  • 业务合作，请联系作者QQ：562866602
  • 我的微信号：mchina_tang
  • 给我写信：mchina_tang@qq.com

我们永远相信，分享是一种美德 | We Believe, Great People Share Knowledge...

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