谁知道微信关键字回复原理是什么
我就知道收到xml 然后echo xml就回复了 但有什么要求 里面原理是什么 不然我不能灵活应用了
回复讨论(解决方案)
微信服务器就相当于一个转发服务器，终端（手机、Pad等）发起请求至微信服务器，微信服务器，然后将请求转发给自定义服务（这就里就是我们的具体实现）。
服务处理完毕，然后挥发给微信服务器，微信服务器再将具体响应回复到终端。
其实，我们需要做的事情，就是对HTTP请求，做出响应。
具体的请求内容，我们按照特定的XML格式去解析，处理完毕后，也要按照特定的XML格式返回。
我们只需要一个简单的实现HttpHandler即可。
当然，微信平台还能实现更加复杂的业务，比如微信可以作为内嵌的浏览器，我们可以通过微信的链接，打开htm界面，然后实现自己的逻辑。
微信在你接管之后会将用户POST过来的信息以XML的格式转移到你的服务器上，你需要做的是接收微信POST过来的数据并进行解析，采用mysql或者是正则等匹配对应的关键字按照微信的API接口规则输出对应的XML文件即可。
後台用?回?的?容，然後自定?一套??事件。例如回?1，後台?取後，判?是1，??用API接口，??某些功能。
回?2.如果後台?有定?2的?理。?不操作。
你把接收到的消息用正则表达式匹配一下，如果能匹配到，回复相应的内容不就行了，乳此简单
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