Socket 接收数据的粘包、断包处理
1、客户端发送打包处理
///
/// 消息包
///
public class Package
{
///
/// 流水号
///
public string MessageId { get; set; }
///
/// 公司服务编码
///
public int CompanyKey { get; set; }
///
/// 公司名称
///
public string CompanyName { get; set; }
///
/// JSON字符串
///
public string JsonStr { get; set; }
///
/// 请求时间
///
public DateTime RequestTime { get; set; }
}///
/// 发关数据打包
///
///
///
///
private void SendPacket(string json, string msg, ref int num)
{
if (!string.IsNullOrEmpty(json))
{
var packet = new Package()
{
MessageId = "2",
CompanyKey = DbConfig.CompanyKey,
CompanyName = DbConfig.CompanyName,
JsonStr = json,
RequestTime = DateTime.Now
};
var data = JsonConvert.SerializeObject(packet);
Send(data);
AddMsgInfo($@"已上传{num}个{msg},包长:{data.Length}");
}
}
///
/// 发送
///
///
private void Send(string json)
{
if (_isConnetion)
{
StringBuilder sb = new StringBuilder();
sb.Append(json.Replace("!", "！"));//正文的！全部替换成中文格式
sb.Append("!"); //包尾标记 使用英文格式。
byte[] by = Encoding.GetEncoding("GBK").GetBytes(sb.ToString());
Client.Send(by, by.Length);
}
else
{
//addMsg("未连接");
AddMsg("未登录，请先连接平台！");
}
}
2、服务端接收粘包处理
private HandleResult OnCompanyTcpServerReceive(IntPtr connId, IntPtr pData, int length)
{
try
{
AcquisitionBusiness acquisition = new AcquisitionBusiness();
var str = Marshal.PtrToStringAnsi(pData);//转字符串
var plist = HandlerBytesData(str, connId);
foreach (var result in plist)
{
if (result.MessageId == 1)
{
string ip = "";
ushort port = 0;
if (_companyServer.GetRemoteAddress(connId, ref ip, ref port))
{
if (_companyConnections.Count(p => p.CompanyId == result.CompanyKey.ToString()) > 0)
{
this._companyConnections.RemoveAll(p => p.CompanyId == result.CompanyKey.ToString());
}
this._companyConnections.Add(new CompanyConnection()
{
ConnectionId = connId.ToString(),
ConnectionIntPtr = connId,
CompanyId = result.CompanyKey.ToString(),
Name = result.CompanyName,
Ip = ip,
Post = port.ToString(),
LastTime = DateTime.Now
});
}
ShowConnectionsInfo();
}
else if (result.MessageId == 2)
{
var data = JsonConvert.DeserializeObject(result.JsonStr);
JToken arro;
JToken arrp;
JToken arrd;
data.TryGetValue("order", out arro);
data.TryGetValue("project", out arrp);
data.TryGetValue("distribution", out arrd);
var cname = result.CompanyName?.ToString() ?? "";
if (result.CompanyKey > 0)
{
if (arro != null && arro.Any())
{
var torder = arro;
var order = torder.ToObject();
acquisition.SaveOrder(order, result.CompanyKey, cname);
//
}
if (arrp != null && arrp.Any())
{
var tproject = arrp;
var project = tproject.ToObject();
acquisition.SaveProject(project, result.CompanyKey, cname);
}
if (arrd == null || !arrd.Any()) return HandleResult.Ok;
var tdistribution = arrd;
var distribution = tdistribution.ToObject();
acquisition.SaveDistribution(distribution, result.CompanyKey, cname);
plist.Remove(result);
return HandleResult.Ok;
}
else
{
return HandleResult.Error;
}
}
}
return HandleResult.Error;
}
catch (Exception ex)
{
_log.Error($"OnCompanyTcpServerReceive 报错=>{ex.Message}");
return HandleResult.Error;
}
} ///
/// 粘包处理
///
///
///
/// HandlerBytesData(string datas, IntPtr connId)
{
var list = new List();
try
{
var sb = _cacheManager.Get(connId.ToString());
foreach (var data in datas.Split('!').Where(arg => !string.IsNullOrEmpty(arg)))
{
try
{
Package package = null;
try
{
package = JsonConvert.DeserializeObject(data);
list.Add(package);
}
catch (Exception)
{
if (sb == null)
{
sb = new StringBuilder();
}
if (sb.Length > 0)
{
sb.Append(data);
try
{
package = JsonConvert.DeserializeObject(sb.ToString());
sb.Clear();
_cacheManager.Remove(connId.ToString());
list.Add(package);
}
catch (Exception)
{
_cacheManager.Add(connId.ToString(), sb);
continue;
}
}
else
{
sb.Append(data);
_cacheManager.Add(connId.ToString(), sb);
continue;
}
}
}
catch (Exception e)
{
_log.Error($" StartListenServer -> 请求数据：{data}，异常信息：{e.StackTrace}");
return null;
}
}
return list;
}
catch (Exception ex)
{
_log.Error($"报错信息=>{ex.Message}\n报错位置：{ex.StackTrace}");
return null;
}
}
#endregion
}