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微信公众平台开发（十）消息回复总结，公众平台

WBOY원래의: 2016-06-13 09:27:361140검색

微信公众平台开发（十）消息回复总结，公众平台

原文地址：http://www.cnblogs.com/mchina/p/3364377.html

一、简介

微信公众平台提供了三种消息回复的格式，即文本回复、音乐回复和图文回复，在这一篇文章中，我们将对这三种消息回复的格式做一下简单讲解，然后封装成函数，以供读者使用。

二、思路分析

对于每一个POST请求，开发者在响应包中返回特定xml结构，对该消息进行响应（现支持回复文本、图文、语音、视频、音乐）。

三、文本回复

3.1 文本回复xml 结构

 <span><<span>xml<span>>
 <span><<span>ToUserName<span>><span><![CDATA[<span>toUser<span>]]><span></<span>ToUserName<span>>
 <span><<span>FromUserName<span>><span><![CDATA[<span>fromUser<span>]]><span></<span>FromUserName<span>>
 <span><<span>CreateTime<span>>12345678<span></<span>CreateTime<span>>
 <span><<span>MsgType<span>><span><![CDATA[<span>text<span>]]><span></<span>MsgType<span>>
 <span><<span>Content<span>><span><![CDATA[<span>content<span>]]><span></<span>Content<span>>
 <span></<span>xml<span>></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

3.2 结构说明

3.3 具体实施

针对上面给出的xml 结构，我们只需要在对应的位置填上内容，然后格式化输出就可以了。

说明：

ToUserName 位置上填写的是$fromUsername = $postObj->FromUserName，就是把消息返回给发送信息过来的用户，即接收方账号。

FromUserName 位置上填写的是$toUsername = $postObj->ToUserName，既是开发者微信号。

这是官方的文本回复，只需实例化它的responseMsg() 方法就可以回复 “Welcome to wechat world!” 消息了。

这里我们稍做修改，返回fromUsername 和toUsername 消息，便于读者理解以上的说明。

3.4 测试结果

3.5 封装成可调用的函数

我们可以将上面的内容封装成函数，在需要回复文本的地方直接调用，方便简洁，responseText.func.inc.php 代码如下。

<span>function _response_text(<span>$object,<span>$content<span>){
    <span>$textTpl = "<span><xml>
                <ToUserName><![CDATA[%s]]></ToUserName>
                <FromUserName><![CDATA[%s]]></FromUserName>
                <CreateTime>%s</CreateTime>
                <MsgType><![CDATA[text]]></MsgType>
                <Content><![CDATA[%s]]></Content>
                <FuncFlag>%d</FuncFlag>
                </xml>"<span>;
    <span>$resultStr = <span>sprintf(<span>$textTpl, <span>$object->FromUserName, <span>$object->ToUserName, <span>time(), <span>$content, <span>$flag<span>);
    <span>return <span>$resultStr<span>;
}</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

这样，只要传入$object 和$content，然后在需要回复文本的文件中引入该文件，然后调用 _response_text() 方法，就可以直接回复文本了。

3.6 测试代码

3.6.1 在主文件中引入回复文本的函数文件

<span>require_once 'responseText.func.inc.php';</span>

3.6.2 普通消息回复

<span>public <span>function handleText(<span>$postObj<span>)
    {
        <span>$keyword = <span>trim(<span>$postObj-><span>Content);

        <span>if(!<span>empty( <span>$keyword<span> ))
        {<br />            <span>$contentStr = "微信公众平台-文本回复功能源代码"<span>;
            <span>//<span>$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
            <span>$resultStr = _response_text(<span>$postObj,<span>$contentStr<span>);
            <span>echo <span>$resultStr<span>;
        }<span>else<span>{
            <span>echo "Input something..."<span>;
        }
}</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

3.6.3 关注时回复

<span>public <span>function handleEvent(<span>$object<span>)
    {
        <span>$contentStr = ""<span>;
        <span>switch (<span>$object-><span>Event)
        {
            <span>case "subscribe":
                <span>$contentStr = "感谢您关注【卓锦苏州】"."\n"."微信号：zhuojinsz"<span>;
                <span>break<span>;
            <span>default :
                <span>$contentStr = "Unknow Event: ".<span>$object-><span>Event;
                <span>break<span>;
        }
        <span>$resultStr = _response_text(<span>$object, <span>$contentStr<span>);
        <span>return <span>$resultStr<span>;
}</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

3.7 测试结果

回复文本成功。

四、图文回复

4.1 图文回复xml 结构

 <span><<span>xml<span>>
 <span><<span>ToUserName<span>><span><![CDATA[<span>toUser<span>]]><span></<span>ToUserName<span>>
 <span><<span>FromUserName<span>><span><![CDATA[<span>fromUser<span>]]><span></<span>FromUserName<span>>
 <span><<span>CreateTime<span>>12345678<span></<span>CreateTime<span>>
 <span><<span>MsgType<span>><span><![CDATA[<span>news<span>]]><span></<span>MsgType<span>>
 <span><<span>ArticleCount<span>>2<span></<span>ArticleCount<span>>
 <span><<span>Articles<span>>
 <span><<span>item<span>>
 <span><<span>Title<span>><span><![CDATA[<span>title1<span>]]><span></<span>Title<span>> 
 <span><<span>Description<span>><span><![CDATA[<span>description1<span>]]><span></<span>Description<span>>
 <span><<span>PicUrl<span>><span><![CDATA[<span>picurl<span>]]><span></<span>PicUrl<span>>
 <span><<span>Url<span>><span><![CDATA[<span>url<span>]]><span></<span>Url<span>>
 <span></<span>item<span>>
 <span><<span>item<span>>
 <span><<span>Title<span>><span><![CDATA[<span>title<span>]]><span></<span>Title<span>>
 <span><<span>Description<span>><span><![CDATA[<span>description<span>]]><span></<span>Description<span>>
 <span><<span>PicUrl<span>><span><![CDATA[<span>picurl<span>]]><span></<span>PicUrl<span>>
 <span><<span>Url<span>><span><![CDATA[<span>url<span>]]><span></<span>Url<span>>
 <span></<span>item<span>>
 <span></<span>Articles<span>>
 <span></<span>xml<span>> </span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

4.2 结构说明

类似文本回复的格式，只需要在相应的位置填上对应的内容就可以回复图文信息了。

4.3 具体实施

图文回复可以是单图文，也可以是多图文，这里我们先以单图文的案例来引导读者，然后再引出多图文。

我们将回复图文的xml 结构分解成为以下三个结构，图文头，图文体，图文尾，图文体就是图文回复时看到的标题，描述，图片URL和原文URL。

$newsTplHead = "<span><<span>xml<span>>
                <span><<span>ToUserName<span>><span><![CDATA[<span>%s<span>]]><span></<span>ToUserName<span>>
                <span><<span>FromUserName<span>><span><![CDATA[<span>%s<span>]]><span></<span>FromUserName<span>>
                <span><<span>CreateTime<span>>%s<span></<span>CreateTime<span>>
                <span><<span>MsgType<span>><span><![CDATA[<span>news<span>]]><span></<span>MsgType<span>>
                <span><<span>ArticleCount<span>>1<span></<span>ArticleCount<span>>
                <span><<span>Articles<span>><span>";
$newsTplBody = "<span><<span>item<span>>
                <span><<span>Title<span>><span><![CDATA[<span>%s<span>]]><span></<span>Title<span>> 
                <span><<span>Description<span>><span><![CDATA[<span>%s<span>]]><span></<span>Description<span>>
                <span><<span>PicUrl<span>><span><![CDATA[<span>%s<span>]]><span></<span>PicUrl<span>>
                <span><<span>Url<span>><span><![CDATA[<span>%s<span>]]><span></<span>Url<span>>
                <span></<span>item<span>><span>";
$newsTplFoot = "<span></<span>Articles<span>>
                <span><<span>FuncFlag<span>>0<span></<span>FuncFlag<span>>
                <span></<span>xml<span>>";</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

接下来，我们对三段结构分别插入对应内容：

A. $newsTplHead

$header = sprintf($newsTplHead, $object->FromUserName, $object->ToUserName, time());

B. $newsTplBody

<span>$title = $newsContent['title'];
$desc = $newsContent['description'];
$picUrl = $newsContent['picUrl'];
$url = $newsContent['url'];
$body = sprintf($newsTplBody, $title, $desc, $picUrl, $url);</span>

说明：$newsContent 是从主文件传入函数的图文数组。

C. $newsTplFoot

<span>$FuncFlag = 0;
$footer = sprintf($newsTplFoot, $FuncFlag);</span>

然后将三段进行拼接返回就可以回复单条图文了。

return $header.$body.$footer;

将以上内容写到一个函数里，命名为 _response_news() 函数，以供下面调用测试。

4.4 测试代码

4.4.1 在主文件中引入回复图文的函数文件

<span>require_once 'responseNews.func.inc.php';</span>

4.4.2 创建数组并传入

在主文件中，只需要向 _response_news() 函数中传入一个数组和$postObj 即可。

<span>$record=<span>array<span>(
    'title' =>'山塘街',
    'description' =>'山塘街东起阊门渡僧桥，西至苏州名胜虎丘山的望山桥，长约七里，所以苏州俗语说&ldquo;七里山塘到虎丘&rdquo;...',
    'picUrl' => 'http://thinkshare.duapp.com/images/suzhou.jpg',
    'url' =>'http://mp.weixin.qq.com/mp/appmsg/show?__biz=MjM5NDM0NTEyMg==&appmsgid=10000046&itemidx=1&sign=9e7707d5615907d483df33ee449b378d#wechat_redirect'<span>
);

<span>$resultStr = _response_news(<span>$postObj,<span>$record<span>);
<span>echo <span>$resultStr;</span></span></span></span></span></span></span></span></span></span>

4.5 测试结果

点击进入查看

单图文回复测试成功。

4.6 多图文回复

有了上面的引导，读者应该能够想到回复多图文的思路了，就是将多维数组中的值循环放到相应的位置，然后拼接起来就可以了，下面进行讲解。

4.6.1 获取图文条数

<span>$bodyCount = <span>count(<span>$newsContent);</span></span></span>

4.6.2 判断图文条数

因为微信限制了回复的图文消息数为10条以内，所以需要判断图文条数，如果小于10条，则图文数等于原来的图文数，如果大于等于10条，则强制限制为10条。

<span>$bodyCount = <span>$bodyCount < 10 ? <span>$bodyCount : 10;</span></span></span>

4.6.3 组织图文体

图文头和图文尾和上面单图文一样，不再赘述，主要是图文体的组织。

用foreach 循环出数组的内容并赋予图文体，并进行拼接：

<span>foreach(<span>$newsContent <span>as <span>$key => <span>$value<span>){
    <span>$body .= <span>sprintf(<span>$newsTplBody, <span>$value['title'], <span>$value['description'], <span>$value['picUrl'], <span>$value['url'<span>]);
}</span></span></span></span></span></span></span></span></span></span></span></span></span></span>

说明：$newsContent 是从主文件传入函数的图文数组。

4.6.4 拼接并返回

<span>return <span>$header.<span>$body.<span>$footer;</span></span></span></span>

将以上内容写到一个函数里，命名为 _response_multiNews() 函数，以供下面调用测试。

4.7 测试多图文

4.7.1 在主文件中引入回复多图文的函数文件

<span>require_once 'responseMultiNews.func.inc.php';</span>

4.7.2 创建多维数组并传入

<span>$record[0]=<span>array<span>(
    'title' =>'观前街',
    'description' =>'观前街位于江苏苏州市区，是成街于清朝时期的百年商业老街，街上老店名店云集，名声远播海内外...',
    'picUrl' => 'http://joythink.duapp.com/images/suzhou.jpg',
    'url' =>'http://mp.weixin.qq.com/mp/appmsg/show?__biz=MjM5NDM0NTEyMg==&appmsgid=10000052&itemidx=1&sign=90518631fd3e85dd1fde7f77c04e44d5#wechat_redirect'<span>
);

......

<span>$record[11]=<span>array<span>(
    'title' =>'平江路',
    'description' =>'平江路位于苏州古城东北，是一条傍河的小路，北接拙政园，南眺双塔，全长1606米，是苏州一条历史攸久的经典水巷。宋元时候苏州又名平江，以此名路...',
    'picUrl' => 'http://joythink.duapp.com/images/suzhouScenic/pingjianglu.jpg',
    'url' =>'http://mp.weixin.qq.com/mp/appmsg/show?__biz=MjM5NDM0NTEyMg==&appmsgid=10000056&itemidx=1&sign=ef18a26ce78c247f3071fb553484d97a#wechat_redirect'<span>
);

<span>$resultStr = _response_multiNews(<span>$postObj,<span>$record<span>);
<span>echo <span>$resultStr;</span></span></span></span></span></span></span></span></span></span></span></span></span></span>

4.8 测试多图文结果

点击进入查看

测试多图文成功。

五、音乐回复

微信还提供了一种消息回复的格式，即音乐回复，下面我们编写程序测试一下。

注意：由于音乐版权的问题，现在很少有回复音乐的API，开放的API 查询出来的音乐信息也有很多是不正确的。所以在这里，我们上传几首音乐到自己的服务器空间测试。

本地文件：

测试是否能够正常播放：

5.1 音乐回复xml 结构

 <span><<span>xml<span>>
 <span><<span>ToUserName<span>><span><![CDATA[<span>toUser<span>]]><span></<span>ToUserName<span>>
 <span><<span>FromUserName<span>><span><![CDATA[<span>fromUser<span>]]><span></<span>FromUserName<span>>
 <span><<span>CreateTime<span>>12345678<span></<span>CreateTime<span>>
 <span><<span>MsgType<span>><span><![CDATA[<span>music<span>]]><span></<span>MsgType<span>>
 <span><<span>Music<span>>
 <span><<span>Title<span>><span><![CDATA[<span>TITLE<span>]]><span></<span>Title<span>>
 <span><<span>Description<span>><span><![CDATA[<span>DESCRIPTION<span>]]><span></<span>Description<span>>
 <span><<span>MusicUrl<span>><span><![CDATA[<span>MUSIC_Url<span>]]><span></<span>MusicUrl<span>>
 <span><<span>HQMusicUrl<span>><span><![CDATA[<span>HQ_MUSIC_Url<span>]]><span></<span>HQMusicUrl<span>>
 <span></<span>Music<span>>
 <span></<span>xml<span>></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

5.2 结构说明

5.3 具体实施

我们先做一个固定的歌曲回复来引导读者，然后再引出更高级别的歌曲查询回复。

5.3.1 在xml 结构的相应位置插入相应数据

<span><<span>Music<span>>
<span><<span>Title<span>><span><![CDATA[<span>Far Away From Home<span>]]><span></<span>Title<span>>
<span><<span>Description<span>><span><![CDATA[<span>Groove Coverage<span>]]><span></<span>Description<span>>
<span><<span>MusicUrl<span>><span><![CDATA[<span>http://thinkshare.duapp.com/music/10001.mp3<span>]]><span></<span>MusicUrl<span>>
<span><<span>HQMusicUrl<span>><span><![CDATA[<span>http://thinkshare.duapp.com/music/10001.mp3<span>]]><span></<span>HQMusicUrl<span>>
<span></<span>Music<span>></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

5.3.2 测试代码

<span>$resultStr = _response_music(<span>$postObj,<span>$keyword<span>);
<span>echo <span>$resultStr;                    </span></span></span></span></span></span>

5.3.3 测试结果

5.4 模拟点歌

有了上面的简单案例引导，读者应该可以想到模拟点歌的具体实现了吧，下面就来简单介绍一下。

思路：将歌曲代码和对应的歌曲名存入数据库，用户输入歌曲名，在数据库中找到歌曲名对应的歌曲编号，然后就可以生成MusicUrl 回复用户了。

5.4.1 创建数据库

建表语句及数据文件：

<span>CREATE <span>TABLE <span>IF <span>NOT <span>EXISTS<span> `tbl_music` (
  `music_id` <span>int(<span>11) <span>NOT <span>NULL<span>,
  `music_name` <span>varchar(<span>40) <span>NOT <span>NULL<span>,
  `music_singer` <span>varchar(<span>40) <span>NOT <span>NULL<span>,
  `music_lrc` <span>text <span>NOT <span>NULL<span>,
  <span>PRIMARY <span>KEY<span> (`music_id`)
) ENGINE<span>=MyISAM <span>DEFAULT CHARSET<span>=<span>utf8;

<span>INSERT <span>INTO `tbl_music` (`music_id`, `music_name`, `music_singer`, `music_lrc`) <span>VALUES<span>
(<span>10001, <span>'<span>Far Away From Home<span>', <span>'<span>Groove Coverage<span>', <span>'<span>far away from home<span>'<span>),
(<span>10002, <span>'<span>The Dawn<span>', <span>'<span>Dreamtale<span>', <span>'<span>the dawn<span>'<span>),
(<span>20002, <span>'<span>董小姐<span>', <span>'<span>宋冬野<span>', <span>'<span>董小姐<span>'<span>),
(<span>20001, <span>'<span>左边<span>', <span>'<span>杨丞琳<span>', <span>'<span>左边<span>');</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

5.4.2 _response_music() 函数编写

A. 引入数据库操作文件

<span>require_once('mysql_bae.func.php');</span>

B. 数据库操作及数据处理

<span>$query = "SELECT * FROM tbl_music WHERE music_name LIKE '%<span>$musicKeyword%'"<span>;
<span>$result = _select_data(<span>$query<span>);
<span>$rows = <span>mysql_fetch_array(<span>$result,<span> MYSQL_ASSOC);

<span>$music_id = <span>$rows[music_id];</span></span></span></span></span></span></span></span></span></span></span></span>

注： $musicKeyword 为从主文件传入的歌曲名关键字，这里使用模糊查询，只取第一条数据。

C. 判断是否查询到

<span>if(<span>$music_id <> ''<span>)
{
    <span>$music_name = <span>$rows<span>[music_name];
    <span>$music_singer = <span>$rows<span>[music_singer];
    <span>$musicUrl = "http://thinkshare.duapp.com/music/".<span>$music_id.".mp3"<span>;
    <span>$HQmusicUrl = "http://thinkshare.duapp.com/music/".<span>$music_id.".mp3"<span>;

    <span>$resultStr = <span>sprintf(<span>$musicTpl, <span>$object->FromUserName, <span>$object->ToUserName, <span>time(), <span>$music_name, <span>$music_singer, <span>$musicUrl, <span>$HQmusicUrl<span>);
    <span>return <span>$resultStr<span>;
}<span>else<span>{
    <span>return ""<span>;    
}</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

说明：如果查询到歌曲信息，按照xml 结构返回数据；如果未查询到，则返回空，用于主文件判断。

将以上代码封装成 _response_music() 函数并保存为responseMusic.func.inc.php 文件供主文件调用。

5.4.3 测试代码

A. 引入回复音乐和回复文本的函数文件

//引入回复音乐的函数文件
require_once 'responseMusic.func.inc.php';
//引入回复文本的函数文件
<span>require_once 'responseText.func.inc.php';</span>

B. 调用

<span>if(!<span>empty( <span>$keyword<span> ))
{
    <span>$resultStr = _response_music(<span>$postObj,<span>$keyword<span>);
    <span>if(<span>$resultStr <> ''<span>)
    {
        <span>echo <span>$resultStr<span>;
    }<span>else<span>
    {
        <span>echo _response_text(<span>$postObj,"未查询到【".<span>$keyword."】的歌曲信息！"<span>);    
    }
    
}</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

说明：如果查询到歌曲信息，则返回所得信息，如果未查询到，则调用 _response_text() 函数返回文本信息。

5.5 模拟点歌测试

回复音乐测试成功。

微信公众平台开发者模式回复图文消息代码，要全套的最好有文字说明的

$resultStr="\n \n \n ".time()."\n \n 1\n \n \n \n <description>\n <picurl>\n <url>\n \n \n <funcflag>0\n ";echo $resultStr;$resultStr = sprintf($newsTpl, $fromUsername, $toUsername, time(), $msgType, $title,$desription);看了下你的这句$newsTpl应该是一个已经定义好的模版，后面是替换的参数所以可以查看下模版是否正确 给你个我代码里面用到的例子吧，具体里面字符串的话自己替换 希望您能采纳！谢谢 <h3>怎在微信公众平台自动回复中设置图文并存的消息回复？</h3> 在“高级功能“——”编辑者模式“——关键词回复”——“选图文” 二自动回复里面想是图文的话需要进“开发者模式” 只不过开发者模式是需要接口的 </funcflag></url></picurl></description>

성명：

이전 기사：利用PHP SOAP扩展实现简单Web Services다음 기사：PHP中Fatal error session_start()错误解决步骤，fatalsession_start

微信公众平台开发（十） 消息回复总结，公众平台