主要更新了http相关的内容

Ramitta/HttpHelper.cs

@@ -0,0 +1,77 @@
+using System.IO;
+using System.Net;
+using System.Text;
+
+namespace Ramitta.lib
+{
+    public static class HttpHelper
+    {
+        // 异步发送HTTP GET请求
+        public static async Task<string> SendHttpGetAsync(string url, int timeout = 10000)
+        {
+            try
+            {
+                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
+                request.Method = "GET";
+                request.Timeout = timeout;
+                request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36";
+
+                using (HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync())
+                using (Stream stream = response.GetResponseStream())
+                using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
+                {
+                    return await reader.ReadToEndAsync();
+                }
+            }
+            catch (Exception ex)
+            {
+                throw new Exception($"GET请求失败: {ex.Message}");
+            }
+        }
+
+        public static async Task<string> SendHttpPostAsync(string url, string jsonData, int timeout = 10000)
+        {
+            try
+            {
+                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
+                request.Method = "POST";
+                request.Timeout = timeout;
+                request.ContentType = "application/json";
+                request.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36";
+
+                byte[] data = Encoding.UTF8.GetBytes(jsonData);
+                request.ContentLength = data.Length;
+
+                using (Stream requestStream = await request.GetRequestStreamAsync())
+                {
+                    await requestStream.WriteAsync(data, 0, data.Length);
+                }
+
+                using (HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync())
+                using (Stream responseStream = response.GetResponseStream())
+                using (StreamReader reader = new StreamReader(responseStream, Encoding.UTF8))
+                {
+                    return await reader.ReadToEndAsync();
+                }
+            }
+            catch (WebException ex)
+            {
+                WebResponse errorResponse = ex.Response;
+                if (errorResponse is HttpWebResponse httpErrorResponse)
+                {
+                    using (Stream errorStream = httpErrorResponse.GetResponseStream())
+                    using (StreamReader errorReader = new StreamReader(errorStream, Encoding.UTF8))
+                    {
+                        string errorContent = await errorReader.ReadToEndAsync();
+                        throw new Exception($"HTTP错误 {(int)httpErrorResponse.StatusCode} ({httpErrorResponse.StatusCode}): {errorContent}");
+                    }
+                }
+                throw new Exception("网络错误: " + ex.Message);
+            }
+            catch (Exception ex)
+            {
+                throw new Exception("POST请求失败: " + ex.Message);
+            }
+        }
+    }
+}