使用C# 调用deepseek api接口,来实现正常访问
先上图,结果如图先去官方网站充值api费用,默认
对应的C#代码封装
1public class DeepSeekHelper2 {3 private static readonly HttpClient client = new HttpClient();4 private const string ApiEndpoint = "https://api.deepseek.com/v1/chat/completions";5 private static readonly string apiKey = "你的apikey";6 public static async Task<string> CallDeepSeekAPI(string userQuestion)7 {8 ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;9 try 10 { 11 // 设置请求头 12 client.DefaultRequestHeaders.Clear(); 13 client.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}"); 14 client.DefaultRequestHeaders.Add("Accept", "application/json"); 15 16 // 构建请求体 17 var requestBody = new 18 { 19 model = "deepseek-reasoner", // 根据实际模型调整 20 messages = new[] 21 { 22 new 23 { 24 role = "user", 25 content = userQuestion 26 } 27 }, 28 temperature = 0.7 29 }; 30 31 // 序列化请求体 32 //var jsonContent = JsonSerializer.Serialize(requestBody); 33 var jsonContent = JsonConvert.SerializeObject(requestBody); 34 var content = new StringContent(jsonContent, Encoding.UTF8, "application/json"); 35 36 // 发送请求 37 var response = await client.PostAsync(ApiEndpoint, content); 38 39 // 处理响应 40 if (!response.IsSuccessStatusCode) 41 { 42 throw new Exception($"API请求失败: {response.StatusCode}"); 43 } 44 45 var responseContent = await response.Content.ReadAsStringAsync(); 46 var resultModel = JsonConvert.DeserializeObject<DeepSeekResponse>(responseContent); 47 if (resultModel != null && resultModel.Choices.Count > 0) 48 return resultModel.Choices[0].Message.Content; 49 return responseContent; 50 } 51 catch (Exception ex) 52 { 53 // 处理异常 54 return $"调用API时发生错误: {ex.Message}"; 55 } 56 } 57 } 58 59 60 61public class DeepSeekResponse 62 { 63 public string Id { get; set; } 64 public string Object { get; set; } 65 public long Created { get; set; } 66 public string Model { get; set; } 67 public List<Choice> Choices { get; set; } 68 public Usage Usage { get; set; } 69 public string SystemFingerprint { get; set; } 70 71 // 重写ToString方法以便更好地显示对象信息 72 public override string ToString() 73 { 74 return $"DeepSeekResponse(Id={Id}, Object={Object}, Created={Created}, Model={Model}, Choices={string.Join(", ", Choices)}, Usage={Usage}, SystemFingerprint={SystemFingerprint})"; 75 } 76 } 77 78public class Choice 79 { 80 public int Index { get; set; } 81 public Message Message { get; set; } 82 // 其他Choice相关的属性... 83 84 // 重写ToString方法以便更好地显示Choice信息（这里仅展示Index和Message作为示例） 85 public override string ToString() 86 { 87 return $"Choice(Index={Index}, Message={Message})"; 88 } 89 } 90 91public class Message 92 { 93 public string Role { get; set; } 94 public string Content { get; set; } 95 // 其他Message相关的属性... 96 } 97 98public class Usage 99 {100 public int PromptTokens { get; set; }101 public int CompletionTokens { get; set; }102 public int TotalTokens { get; set; }103 // 其他Usage相关的属性，包括嵌套的字典等，可以根据需要添加104}
调用示例
private async void SendButton_Click(object sender, RoutedEventArgs e) { string requestText = RequestTextBox.Text; if (!string.IsNullOrWhiteSpace(requestText)) { try { string responseData = await DeepSeekHelper.CallDeepSeekAPI(requestText); // await new DeepSeekApi().CallDeepSeekAPI(chatRequest); ResponseTextBox.Text = responseData; } catch (Exception ex) { ResponseTextBox.Text = $"Error: {ex.Message}"; } } else { MessageBox.Show("Please enter a request."); } }
常见问题:
1 发送请求时出错 InnerException = {"请求被中止: 未能创建 SSL/TLS 安全通道。"}
指定使用TLS1.2加密协议,添加如下代码
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;2 收到内容为空白
服务器繁忙,请把deepseek-chat模型切换到deepseek-reasoner 试试,或者换个时间再次尝试.
模型区别如下.代码中默认使用了reasoner模型,俗称满血版.
默认账户赠送10元余额.
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