在C#中,您可以使用HttpWebRequest
类发送GET请求。以下是一个简单的示例,说明如何使用HttpWebRequest
发送GET请求并获取响应:
using System; using System.IO; using System.Net; using System.Text; class Program { static void Main() { // 目标URL string url = "https://api.example.com/data"; // 创建HttpWebRequest实例 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); // 设置请求方法为GET request.Method = "GET"; // 设置请求头(可选) request.Headers["Accept"] = "application/json"; try { // 发送请求并获取响应 using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()) { // 获取响应状态码 int statusCode = response.StatusCode; Console.WriteLine("Response Status Code: " + statusCode); // 读取响应内容 using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8)) { string responseContent = reader.ReadToEnd(); Console.WriteLine("Response Content: " + responseContent); } } } catch (WebException ex) { // 处理异常 using (WebResponse response = ex.Response) { HttpWebResponse httpResponse = (HttpWebResponse)response; int statusCode = httpResponse.StatusCode; Console.WriteLine("Error: " + statusCode); } } } }
在这个示例中,我们首先创建一个HttpWebRequest
实例,并将其目标URL设置为https://api.example.com/data
。然后,我们将请求方法设置为GET,并可选地设置请求头。接下来,我们发送请求并获取响应,然后读取响应内容并将其输出到控制台。如果在发送请求时发生异常,我们将捕获该异常并输出错误状态码。