C#发送Get请求（带参数）

1.简单发送Get请求

/// 

/// 指定Url地址使用Get 方式获取全部字符串
/// 
/// 请求链接地址
/// 
public static string Get(string url)
{
    string result = "";
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
    HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
    Stream stream = resp.GetResponseStream();
    try
    {
        //获取内容
        using (StreamReader reader = new StreamReader(stream))
        {
            result = reader.ReadToEnd();
        }
    }
    finally
    {
        stream.Close();
    }
    return result;
}

2.带请求参数的Get方法

/// 

/// 发送Get请求
/// 
/// 地址
/// 请求参数定义
/// 
public static string Get(string url, Dictionary dic)
{
    string result = "";
    StringBuilder builder = new StringBuilder();
    builder.Append(url);
    if (dic.Count > 0)
    {
        builder.Append("?");
        int i = 0;
        foreach (var item in dic)
        {
            if (i > 0)
                builder.Append("&");
            builder.AppendFormat("{0}={1}", item.Key, item.Value);
            i++;
        }
    }
    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(builder.ToString());
    //添加参数
    HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
    Stream stream = resp.GetResponseStream();
    try
    {
        //获取内容
        using (StreamReader reader = new StreamReader(stream))
        {
            result = reader.ReadToEnd();
        }
    }
    finally
    {
        stream.Close();
    }
    return result;
}

3.自定义指定Http请求头，自定义指定编码解析返回结果

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "GET";
req.Headers["Accept-Language"] = "zh-CN,zh;q=0.8";
req.Referer = "https://www.baidu.com/";
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
Stream stream = resp.GetResponseStream();
string result = "";
//注意，此处使用的编码是：gb2312
//using (StreamReader reader = new StreamReader(stream, Encoding.Default))
using (StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("gb2312")))
{
    result = reader.ReadToEnd();
}

更多：

C#发送POST请求（带参数）