本文共 1937 字，大约阅读时间需要 6 分钟。
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：
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