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。