/// <summary>
/// 从 AliMQ 拉取消息
/// </summary>
/// <returns>消息列表</returns>
private List <OnsConsumerResult> PullMessageFromAli()
{
List <OnsConsumerResult> result = null;
long time = GetCurrentTimeMillis();
//数据签名
String signString = TopicID + NEWLINE + ConsumerID + NEWLINE + time;
string sign = SignString(signString, Ons_SecretKey);
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Signature", sign);
headers.Add("AccessKey", Ons_AccessKey);
headers.Add("ConsumerID", ConsumerID);
Dictionary <string, string> parameters = new Dictionary <string, string>();
parameters.Add("topic", TopicID);
parameters.Add("time", time.ToString());
parameters.Add("num", 32.ToString());
parameters.Add("Signature", sign);
HttpWebResponseEx res = WebHttpHepper.SendRequest(Url, "GET", headers, parameters);
result = JSON.Deserialize <List <OnsConsumerResult> >(res.RetureValue);
return(result);
}
/// <summary>
/// 删除 aliMQ 上的消息
/// </summary>
/// <param name="msgHandle">msgHandle 查询时返回对象的属性</param>
/// <returns>是否成功</returns>
private bool DeleteMessage(String msgHandle)
{
long time = GetCurrentTimeMillis();
String signString = TopicID + NEWLINE + ConsumerID + NEWLINE + msgHandle + NEWLINE + time;
string sign = SignString(signString, Ons_SecretKey);
Dictionary <string, string> headers = new Dictionary <string, string>();
headers.Add("Signature", sign);
headers.Add("AccessKey", Ons_AccessKey);
headers.Add("ConsumerID", ConsumerID);
Dictionary <string, string> parameters = new Dictionary <string, string>();
parameters.Add("topic", TopicID);
parameters.Add("time", time.ToString());
parameters.Add("timeout", "300000");
parameters.Add("msgHandle", msgHandle);
HttpWebResponseEx res = WebHttpHepper.SendRequest(Url, "DELETE", headers, parameters);
if (res.StatusCode == HttpStatusCode.NoContent)
{
Console.WriteLine("delete message success: {0}{1}", msgHandle, res.RetureValue);
return(true);
}
return(false);
}
/// <summary>
/// 传入URL返回网页的html代码带有证书的方法
/// </summary>
/// <param name="url">URL</param>
/// <returns></returns>
public static HttpWebResponseEx SendRequest(string url, string method, Dictionary <string, string> headers = null, Dictionary <string, string> parameters = null, string postData = null)
{
StringBuilder urlBuilder = new StringBuilder(url);
urlBuilder.Append(ConcatQueryString(parameters));
url = urlBuilder.ToString();
HttpWebRequest request = null;
if (url.Contains("https"))
{
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
request = (HttpWebRequest)WebRequest.CreateDefault(new Uri(url));
}
else
{
request = (HttpWebRequest)WebRequest.Create(url);
}
// 与指定URL创建HTTP请求
request.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0; BOIE9;ZHCN)";
request.Method = method;
request.Accept = "*/*";
//headers
foreach (var header in headers)
{
request.Headers.Add(header.Key, header.Value);
}
if (method.ToUpper() == "POST")
{
byte[] data = Encoding.UTF8.GetBytes(postData);
request.ContentType = "text/plain;charset=UTF-8";
request.ContentLength = data.Length;
using (Stream steam = request.GetRequestStream())
{
steam.Write(data, 0, data.Length);
}
}
// 获取对应HTTP请求的响应
HttpWebResponseEx res = new HttpWebResponseEx();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
res.StatusCode = response.StatusCode;
// 对接响应流(以"UTF8"字符集)
using (StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.UTF8))
{
res.RetureValue = reader.ReadToEnd();
}
return(res);
}