Continuing with the part we did not complete before, we can now implement simple text interaction. This article will implement responses to various messages and events.

Project GitHub address: https://github.com/Andyahui/xgyxsh_WeiXin

SDK’s GitHub address: https:/ /github.com/JeffreySu/WeiXinMPSDK/

SDK official introduction blog: http://www.cnblogs.com/szw/archive/2013/05/14/weixin-course- index.html

1: Implement simple replies to various messages

Based on the current underlying framework, it is not difficult for us to see other response mechanisms It's not difficult, it's just that we are not very familiar with this SDK; now that text replies have been implemented, we found that there are many re-methods when rewriting the OnTextRequest method, as follows.

This is how we need to implement various message mechanisms and event mechanisms. You can respond to various POST requests sent by the WeChat server by implementing corresponding methods. If the website has a lot of needs, the business logic is processed in these methods.

• 1.1: Processing voice requests;

????????public?override?IResponseMessageBase?OnVoiceRequest(RequestMessageVoice?requestMessage)
????????{
????????????var?responseVoice?=?base.CreateResponseMessage<responsemessagevoice>();
????????????responseVoice.Voice=new?Voice()
????????????{????????????????
????????????????MediaId?=?requestMessage.MediaId
????????????};???????????
????????????return?responseVoice;
????????}</responsemessagevoice>

The voice request sent by our client first goes to the OnVoiceRequest method. If there is no reply, Reply to the user's message in the default reply method. In the above method test, we created a voice reply, which replies with its own voice by default. MediaId is the ID obtained from the multimedia file uploaded through the material management interface. In fact, the WeChat server saves the ID of the voice sent by the user;

• 1.2: Process image requests;

????????public?override?IResponseMessageBase?OnImageRequest(RequestMessageImage?requestMessage)
????????{
????????????var?responseImage?=?base.CreateResponseMessage<responsemessagetext>();
????????????responseImage.Content?=?"來自圖片，ahui";
????????????return?responseImage;
????????}</responsemessagetext>

The user sends an image request, and then we reply with the text. If we need complex logic, we can add it here ourselves. Among them, base.CreateResponseMessage() is to create a reply text type;

• 1.3: Processing geographical location requests;

????????public?override?IResponseMessageBase?OnLocationRequest(RequestMessageLocation?requestMessage)
????????{
????????????//返回的是圖文消息,是關(guān)于地址的圖文消息。
????????????var?responseLocation?=?base.CreateResponseMessage<responsemessagenews>();

????????????var?markersList?=?new?List<baidumarkers>();
????????????markersList.Add(new?BaiduMarkers()
????????????{
????????????????Size=BaiduMarkerSize.m,
????????????????Color?="red",
????????????????Label="A",
????????????????Latitude?=requestMessage.Location_X,
????????????????Longitude=requestMessage.Location_Y,
????????????});
????????????var?mapUrl?=?BaiduMapHelper.GetBaiduStaticMap(requestMessage.Location_Y,requestMessage.Location_X,1,13,markersList);
????????????responseLocation.Articles.Add(new?Article()
????????????{
????????????????Description?=?string.Format("您剛才發(fā)送了地理位置信息。Location_X:{0},Location_Y:{1},Scale:{2},標簽：{3}",requestMessage.Location_X,requestMessage.Location_Y,requestMessage.Scale,requestMessage.Label),
????????????????PicUrl?=?"http://pic.cnblogs.com/avatar/679140/20141128195544.png",
????????????????Title="張輝的地圖",
????????????????Url?=?mapUrl
????????????});
????????????return?responseLocation;
????????}</baidumarkers></responsemessagenews>

Processing the geographical location request, the user sends his or her geographical location, and we can send any information we want to the user. The above is the interface that calls Baidu Maps to re-send its own information.

• 1.4: Processing link requests;

????????public?override?IResponseMessageBase?OnLinkRequest(RequestMessageLink?requestMessage)
????????{
????????????var?responseLink?=?base.CreateResponseMessage<responsemessagenews>();
????????????responseLink.Articles.Add(new?Article()
????????????{
????????????????Title="處理鏈接來的請求。",
????????????????Description?=requestMessage.Description,
????????????????PicUrl?=?"http://pic.cnblogs.com/avatar/679140/20141128195544.png",
????????????????Url=requestMessage.Url
????????????});
????????????return?responseLink;
????????}</responsemessagenews>

Regarding links, they also reply to graphic messages. Many of the previous ones responded to graphic messages, but We need to pay attention to the parameters inside so that it can comply with WeChat's reply content.

2: Reply to POST event

During the interaction between WeChat users and official accounts, some user operations will cause the WeChat server to send requests to the development team in the form of events On the website server set up by the author, certain events allow us to reply to user information; the following is to handle these.

Event push of WeChat developer documentation:

http://mp.weixin.qq.com/wiki/7/9f89d962eba4c5924ed95b513ba69d9b.html

The representatives with the Event_ logo are the event methods. We need to rewrite these methods to implement our reply. There are many introductions here that you can read on the official website.

• 2.1: Subscription event

????????///?<summary>
????????///?訂閱事件
????????///?</summary>
????????///?<param>
????????///?<returns></returns>
????????public?override?IResponseMessageBase?OnEvent_SubscribeRequest(RequestMessageEvent_Subscribe?requestMessage)
????????{
????????????var?responseSubscribe?=?base.CreateResponseMessage<responsemessagetext>();
????????????responseSubscribe.Content?=?"歡迎訂閱，張輝歡迎您。";
????????????return?responseSubscribe;
????????}</responsemessagetext>

The reply is text content, which is conducive to testing. We can add any logic and can also reply Any image, voice, text, etc. types. This depends on the needs of the project.

• 2.2: Event push when clicking on the menu to pull the message

????????///?<summary>
????????///?點擊事件
????????///?</summary>
????????///?<param>
????????///?<returns></returns>
????????public?override?IResponseMessageBase?OnEvent_ClickRequest(RequestMessageEvent_Click?requestMessage)
????????{
????????????var?respondeEvert?=?base.CreateResponseMessage<responsemessagetext>();
????????????respondeEvert.Content?=?"點擊事件，";
????????????return?respondeEvert;
????????}</responsemessagetext>

Here you may not know what this click event is, this is Set on the menu bar, we will implement the function of the menu bar later.

• 2.3: Event push when clicking the menu jump link

????????public?override?IResponseMessageBase?OnEvent_ViewRequest(RequestMessageEvent_View?requestMessage)
????????{
????????????var?responseView?=?base.CreateResponseMessage<responsemessagetext>();
????????????responseView.Content?=?"點擊帶有view的菜單欄";
????????????return?responseView;
????????}</responsemessagetext>

3: Implementing the WeChat public account custom menu

Basically, there is a menu bar under every WeChat page. The one they have can be achieved through regular settings. Now ours is just a test account. We have been looking for the test account page for a long time and haven’t found it. Finally, it can be set in developer debugging after querying. Another way is to use the page provided by the SDK to achieve it.

• 3.1: Use developer debugging tools to implement custom menus

開發(fā)者調(diào)試工具網(wǎng)址：https://mp.weixin.qq.com/debug/cgi-bin/apiinfo?t=index&type=%E6%B6%88%E6%81%AF%E6%8E%A5%E5%8F%A3%E8%B0%83%E8%AF%95&form=%E4%BA%8B%E4%BB%B6%E6%B6%88%E6%81%AF

???? 我們發(fā)現(xiàn)這個還需要access_token來請求，但是我們從之前的開發(fā)中都沒有發(fā)現(xiàn)有這個，那么這個是什么呢，仔細的看官方的介紹吧；

獲取access_token，我們可以通過開發(fā)者調(diào)試工具，利用AppId和secret來獲取；

在第一幅圖中我們還需要body,調(diào)用接口的json數(shù)據(jù)包；可以參考微信開發(fā)文檔里面的進行設(shè)置。注意里面就會看到click和view這兩個事件類型。

{
????????"button":?[
????????????{
????????????????"name":?"IT資訊",?
????????????????"sub_button":?[
????????????????????{
????????????????????????"type":?"view",?
????????????????????????"name":?"博客園",?
????????????????????????"url":?"http://m.cnblogs.com/",?
????????????????????????"sub_button":?[?]
????????????????????},?
????????????????????{
????????????????????????"type":?"view",?
????????????????????????"name":?"IT新聞",?
????????????????????????"url":?"http://news.cnblogs.com/m",?
????????????????????????"sub_button":?[?]
????????????????????},?
????????????????????{
????????????????????????"type":?"click",?
????????????????????????"name":?"關(guān)于開發(fā)者",?
????????????????????????"key":?"http://m.cnblogs.com/?u=netxiaohui",?
????????????????????????"sub_button":?[?]
????????????????????}
????????????????]
????????????},?
????????????{
????????????????"name":?"校園生活",?
????????????????"sub_button":?[
????????????????????{
????????????????????????"type":?"view",?
????????????????????????"name":?"搜索",?
????????????????????????"url":?"http://www.baidu.com/",?
????????????????????????"sub_button":?[?]
????????????????????},?
????????????????????{
????????????????????????"type":?"view",?
????????????????????????"name":?"視頻",?
????????????????????????"url":?"http://v.qq.com/",?
????????????????????????"sub_button":?[?]
????????????????????},?
????????????????????{
????????????????????????"type":?"click",?
????????????????????????"name":?"關(guān)注我們",?
????????????????????????"key":?"V1001_GOOD",?
????????????????????????"sub_button":?[?]
????????????????????}
????????????????]
????????????},?
????????????{
????????????????"name":?"學(xué)生",?
????????????????"sub_button":?[
????????????????????{
????????????????????????"type":?"view",?
????????????????????????"name":?"搜索",?
????????????????????????"url":?"http://www.soso.com/",?
????????????????????????"sub_button":?[?]
????????????????????},?
????????????????????{
????????????????????????"type":?"view",?
????????????????????????"name":?"視頻",?
????????????????????????"url":?"http://v.qq.com/",?
????????????????????????"sub_button":?[?]
????????????????????},?
????????????????????{
????????????????????????"type":?"click",?
????????????????????????"name":?"關(guān)注我們",?
????????????????????????"key":?"V1001_GOOD",?
????????????????????????"sub_button":?[?]
????????????????????}
????????????????]
????????????}
????????]
????}

??? 關(guān)于里面的事件類型，我們可以自己隨意的設(shè)置，都會響應(yīng)我們前面設(shè)置的菜單事件，我們可以進行一系列的邏輯代碼的處理。

3.2：SDK的自定義菜單

????? 通過下面的網(wǎng)址可以 進行設(shè)置，里面還是需要前面的兩個參數(shù)AppId和secret或者Token來設(shè)置微信的自定義菜單。

設(shè)置自定義菜單網(wǎng)址：http://sdk.weixin.senparc.com/Menu

四：最終的結(jié)果展示

??? 實現(xiàn)上面的代碼就可以實現(xiàn)相應(yīng)的功能。這個SDK簡單的使用我們現(xiàn)在已經(jīng)大體的會了，在之后的博文中會慢慢的解析這個SDK里面的一些東西，會從Request,Response等基礎(chǔ)開始。

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