WeChat public platform development (3): WeChat public platform

Public platform development (III): Public Platform

1. Public platform message interaction process

As developers, we have two main targets: servers and application (website) servers.

When a user sends a message to your public platform, the message is actually sent to the server first. The server initiates another request to the website server, and the website server returns the result of this request, then the server sends it to the client.

The entire message communication process is as follows:

In the above five steps, as developers, we focus mainly on step 3, which actually requires three tasks:

I will describe the above three tasks in detail and provide a complete set of simple and efficient processing methods.

XML format of forwarded messages

<? Xml version = "1.0" encoding = "UTF-8"?> <Xml> <ToUserName> <! [CDATA [gh_a96a4a619366]> </ToUserName> <FromUserName> <! [CDATA [olPjZjsXuQPJoV0HlruZkNzKc91E]> </FromUserName> <CreateTime> 1357986928 </CreateTime> <MsgType> <! [CDATA [text]> </MsgType> <Content> <! </Content> <MsgId> 5832509444155992350 </MsgId> </xml>

The official description of the corresponding node is as follows:

Parameters	Description
ToUserName	Developer ID
FromUserName	Sender account (one OpenID)
CreateTime	Message creation time (integer)
MsgType	Text
Content	Text message content
MsgId	Message id, 64-bit integer

 

 

 

 

 

 

XML format of returned messages

<? Xml version = "1.0" encoding = "UTF-8"?> <Xml> <ToUserName> <! [CDATA [olPjZjsXuQPJoV0HlruZkNzKc91E]> </ToUserName> <FromUserName> <! [CDATA [gh_a96a4a619366]> </FromUserName> <CreateTime> 63497820384 </CreateTime> <MsgType> text </MsgType> <Content> <! [CDATA [text message you just sent: Chinese // You can also send [location] [Image] [Voice] information to view replies in different formats. // SDK official address: http://weixin.senparc.com]> </Content> </xml>

The official description of the corresponding node is as follows:

Parameters	Description
ToUserName	Recipient account (received OpenID)
FromUserName	Developer ID
CreateTime	Message Creation Time
MsgType	Text
Content	The content of the reply message. The length cannot exceed 2048 bytes.
FuncFlag	The message received by the star when 0x0001 is marked.

 

 

 

 

 

 

 

Some issues that need attention and are easily overlooked:

 

WeiXinMessageSDK source code download case source code