企业微信客服发送消息代码C#

以下是使用 C# 发送消息到企业微信客服的示例代码：

using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using Newtonsoft.Json;

public class WeChatService
{
    private readonly string _accessToken;
    private readonly string _baseUrl;

    public WeChatService(string accessToken, string baseUrl = "https://qyapi.weixin.qq.com/cgi-bin/")
    {
        _accessToken = accessToken;
        _baseUrl = baseUrl;
    }

    public async Task SendMessageAsync(string toUser, string content)
    {
        var message = new
        {
            touser = toUser,
            msgtype = "text",
            text = new
            {
                content
            }
        };

        var json = JsonConvert.SerializeObject(message);
        var url = $"{_baseUrl}message/send?access_token={_accessToken}";
        var client = new HttpClient();
        var requestContent = new StringContent(json, Encoding.UTF8, "application/json");
        var response = await client.PostAsync(url, requestContent);
        response.EnsureSuccessStatusCode();
    }
}

使用示例：

var weChatService = new WeChatService("your_access_token");
await weChatService.SendMessageAsync("user_id", "Hello, World!");

其中，`your_access_token` 需要替换成你的企业微信应用的访问令牌，`user_id` 是需要发送消息的用户的企业微信用户ID，`Hello, World!` 是消息内容。