项目开发收尾总结（片段）

一个项目又开发完成了，虽然时间短问题多，但还是有一，二总结
1、kendo中如果使用 data-role="datetimepicker"日期时间选择器，时间选择列表总是不能初始化，需要选择两次日期，才会出现时间选择列表。第三方组件啊，让人头痛，一一排除后，竟然在这里。
Date.prototype.toString = function (formatStr) {
// --- //
return str;
}
自定义了日期类型的方法toString("yyyy-MM-dd")，该方法本来是没有错误的，但是和kendo的日期时间冲突了，将 toString 换成 format 问题解决，原来toString这个方法，kendo有另外的定义，看来自定义的名称还是要个性化。
2、项目开发时间短，数据建模不是同一人完成的，缺乏了整体的规划，在模块数据交叉的地方，出现后期难以整合的问题，看来以后建模和数据库还是要整体规划，功能开发上可以各司其职。
3、JPUSH推送
JPUSH封装后使用就非常简单了。
namespace JPush
{
public class JPushUtil
{
protected const string apiBaseUrl = "https://api.jpush.cn/v3/";
static JPushUtil()
{
appkeys = ConfigurationManager.AppSettings["OwnerAppkey"];
master_secret = ConfigurationManager.AppSettings["OwnerSecret"];

}
public static string appkeys
{
get;
set;
}
public static string master_secret
{
get;
set;
}

public static string GenerateQueryToken(string appKey, string masterSecret)
{
string s = string.Format("{0}:{1}", appKey, masterSecret);
Encoding encoding = Encoding.UTF8;

try
{
byte[] bytes = encoding.GetBytes(s);
return Convert.ToBase64String(bytes);
}
catch
{
return string.Empty;
}
}
public static string Send(string data,string url="")
{
string result = "";

url = apiBaseUrl + "push";

HttpWebRequest httpRequest = (HttpWebRequest)HttpWebRequest.Create(url);

httpRequest.Credentials = new NetworkCredential(appkeys, master_secret);
httpRequest.Headers[HttpRequestHeader.Authorization] = "Basic " + GenerateQueryToken(appkeys, master_secret);

byte[] byteArray = null;
byteArray = Encoding.UTF8.GetBytes(data);

httpRequest.Method = "POST";
httpRequest.ContentType = "text/xml; charset=utf-8";
httpRequest.ContentLength = byteArray.Length;

Stream dataStream = httpRequest.GetRequestStream();
dataStream.Write(byteArray, 0, byteArray.Length);
dataStream.Close();

WebResponse response = null;
try
{
response = httpRequest.GetResponse();
}
catch (WebException e)
{
response = e.Response;
}
string responseContent = string.Empty;
using (Stream responseStream = response.GetResponseStream())
{

StreamReader streamReader = new StreamReader(responseStream, Encoding.UTF8);
responseContent = streamReader.ReadToEnd();
}

response.Close();
if (!string.IsNullOrEmpty(responseContent))
{
result = responseContent;
}

return result;
}
static object lockObj = new object();
protected static int GenerateSendIdentity()
{
lock (lockObj)
{
return (int)(((DateTime.UtcNow - new DateTime(2014, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds) % Int32.MaxValue);
}
}
public static PushResponse DPdoSend(int receiverType, string receiverValue, string title, string n_content, string param,
int time_to_live = 864000, string apns_production = "False")
{
appkeys = ConfigurationManager.AppSettings["DPappkey"];
master_secret = ConfigurationManager.AppSettings["DPsecret"];
return doSend(receiverType, receiverValue, title, n_content, param, time_to_live, apns_production);
}
public static PushResponse OwnerdoSend(int receiverType, string receiverValue, string title, string n_content, string param,
int time_to_live = 864000, string apns_production = "False")
{
appkeys = ConfigurationManager.AppSettings["OwnerAppkey"];
master_secret = ConfigurationManager.AppSettings["OwnerSecret"];
return doSend(receiverType, receiverValue, title, n_content, param, time_to_live, apns_production);
}
public static PushResponse JYdoSend(int receiverType, string receiverValue, string title, string n_content, string param,
int time_to_live = 864000, string apns_production = "False")
{
appkeys = ConfigurationManager.AppSettings["JYappkey"];
master_secret = ConfigurationManager.AppSettings["JYsecret"];
return doSend(receiverType, receiverValue, title, n_content, param, time_to_live, apns_production);
}

public static PushResponse doSend( int receiverType, string receiverValue, string title, string n_content, string param,
int time_to_live = 864000,string apns_production="False")
{
StringBuilder sb=new StringBuilder();
sb.AppendLine("{");
sb.AppendLine("\"platform\": [\"android\",\"ios\"],");
sb.AppendLine("\"audience\":{");
if(receiverType==2)
{
sb.AppendLine(" \"tag\" : [\""+receiverValue+"\"]");
}
else
{
sb.AppendLine(" \"alias\" : [\""+receiverValue.Replace(",","\",\"")+"\"]");
}
sb.AppendLine("}");
sb.AppendLine(",\"message\": {");
sb.AppendFormat(" \"msg_content\":\"{0}\",",n_content.Replace("\"","") );
sb.AppendLine();
sb.AppendFormat(" \"title\":\"{0}\",",title.Replace("\"","") );
sb.AppendLine();
sb.AppendFormat(" \"extras\": {0} ",param );
sb.AppendLine();
sb.AppendLine(" }");

sb.AppendLine(",\"options\": {");
sb.AppendFormat(" \"sendno\":{0},",GenerateSendIdentity() );
sb.AppendLine();
sb.AppendFormat(" \"time_to_live\":{0},", time_to_live);
sb.AppendLine();
sb.AppendFormat(" \"apns_production\": \"{0}\"", apns_production);
sb.AppendLine();
sb.AppendLine(" }");
sb.AppendLine("}");
PushResponse result = new PushResponse();
result.ResponseCode = -1;
try
{
string result1 = Send(sb.ToString());
JToken root = JToken.Parse(result1);
try
{
result.MessageId = root.SelectToken("msg_id").Value<string>();
}
catch
{ }
var errorNode = root.SelectToken("error");
if (errorNode == null)
{
result.SendIdentity = root.SelectToken("sendno").Value<string>();
result.ResponseCode = 0;
}
else
{
result.ResponseMessage = errorNode.SelectToken("message").Value<string>();
result.ResponseCode = errorNode.SelectToken("code").Value<int>();
}
}
catch (Exception ex)
{

throw new ST.Exceptions.CanShowException(ex.Message);
}

return result;
}
}
}
在需要的地方直接调用就OK。
4、.net下操作Redis的不明白地方
简写实例说明

using (IRedisClient irc = ST.Cache.RedisManage.GetClient())
{

IRedisTypedClient<MY_View> redis = irc.As<MY_View>();
var lold = redis.Lists["KEY"];

var m1 = lold.Where(a => a.ID == id).SingleOrDefault();
if (m1 != null)
{
lold.RemoveValue(m1);
}
}
Redis中<key,value>value为列表的，采用 RemoveValue，或 redis.RemoveItemFromList(lold, m1)均不能删除，最后还是改为删除整个键，然后再重新添加列表，费时费力，现在功能是完成熬，还没找到问题症结。只有用这个折中的办法。

5、比较类的两个实例相等
A、首先继承IEquatable<T>接口

B、重写Equals方法
C、必须重写GetHashCode方法
如：public class Select_CARBaseInfo_View : IEquatable<Select_CARBaseInfo_View>
{
public Guid ID { get; set; }

public bool Equals(Select_CARBaseInfo_View other)
{
return this.ID == other.ID;
}
public override int GetHashCode()
{
return ID.GetHashCode();
}

6、linq to entity 中 toString(), split()等不能识别方法的解决办法
A、用SqlFunction解决
B、Expression树

如：cc集合和 Rental_Room_ID字符串的交集大于0，即CC中有Rental_Room_ID中某几个ID相同

Expression<Func<ST.Model.Rental_Renter, bool>> where = r => cc.Intersect(r.Rental_Room_ID.Split(',')).Count()>0;
var q=_Renter.LoadEntities(a => true);
var p = q.Where(where.Compile()).Select(a => a.Name).ToList();