C#微信公众号开发之使用MessageHandler简化消息处理流程

using System;
using System.IO;
using Senparc.Weixin.MP.MessageHandlers;
using Senparc.Weixin.MP.Entities;

namespace Senparc.Weixin.MP.Sample.CustomerMessageHandler
{
    public class MyMessageHandler : MessageHandler<MessageContext>
    {
        public MyMessageHandler(Stream inputStream)
            : base(inputStream)
        {

        }
        public override IResponseMessageBase DefaultResponseMessage(IRequestMessageBase requestMessage)
        {
            var responseMessage = this.CreateResponseMessage<ResponseMessageText>();//ResponseMessageText也可以是News等其他类型
            responseMessage.Content = "这条消息来自DefaultResponseMessage。";
            return responseMessage;
        }

        public override IResponseMessageBase OnTextRequest(RequestMessageText requestMessage)
        {
            //...
        }

        public override IResponseMessageBase OnVoiceRequest(RequestMessageVoice requestMessage)
        {
            //...
        }

        //更多没有重写的OnXX方法，将默认返回DefaultResponseMessage中的结果。
        ....
    }
}

        public override IResponseMessageBase OnTextRequest(RequestMessageText requestMessage)
        {
            //TODO:这里的逻辑可以交给Service处理具体信息，参考OnLocationRequest方法或/Service/LocationSercice.cs
            var responseMessage = CreateResponseMessage<ResponseMessageText>();
            responseMessage.Content =
                string.Format(
                    "您刚才发送了文字信息：{0}\r\n您还可以发送【位置】【图片】【语音】等类型的信息，查看不同格式的回复。\r\nSDK官方地址：http://weixin.senparc.com",
                    requestMessage.Content);
            return responseMessage;
        }

        [HttpPost]
        [ActionName("Post")]
        public ActionResult Post(string signature, string timestamp, string nonce, string echostr)
        {
            if (!CheckSignature.Check(signature, timestamp, nonce, Token))
            {
                return Content("参数错误！");
            }

            var messageHandler = new CustomerMessageHandler(Request.InputStream);
            messageHandler.Execute();//执行微信处理过程
            return Content(messageHandler.ResponseDocument.ToString());
        }

public class MyMessageHandler : MessageHandler<MessageContext>