/// <summary>
///
/// </summary>
/// <param name="settingsKey"></param>
/// <param name="valueJson"></param>
/// <param name="count"></param>
/// <param name="IntervalUpdateMilliseconds">更新的间隔时间(毫秒)</param>
public void AddOrUpdate(SettingsKeyEnum settingsKey, string valueJson, int count)
{
string querySql = " SELECT * FROM NY_Settings WHERE UserAccount=@UserAccount AND [Key]=@Key ";
var parmers = new SqlParameter[] {
new SqlParameter("UserAccount", userAccount),
new SqlParameter("Key", settingsKey.ToString())
};
var isExsists = false;
using (var reader = dbhelp.ExecuteReader(CommandType.Text, querySql, parmers))
{
if (reader.Read())
{
isExsists = true;
}
}
//表示存在，则更新数据
if (isExsists)
{
var updateSql = String.Format(" UPDATE NY_Settings SET [Value]='{0}',Count={1},UpdateTime='{2}' WHERE UserAccount=@UserAccount AND [Key]=@Key", valueJson, count, DateTime.Now.ToString());
dbhelp.ExecuteNonQuery(CommandType.Text, updateSql, parmers);
}
else
{
var insertSql = String.Format(" INSERT INTO NY_Settings VALUES(@UserAccount,@Key,'{0}',{1},'{2}' ) ", valueJson, count, DateTime.Now.ToString());
dbhelp.ExecuteNonQuery(CommandType.Text, insertSql, parmers);
}
}
private DateTime?GetUpdateTime(SettingsKeyEnum settingsKey)
{
string querySql = " SELECT * FROM NY_Settings WHERE UserAccount=@UserAccount AND [Key]=@Key ";
var parmers = new SqlParameter[] {
new SqlParameter("UserAccount", userAccount),
new SqlParameter("Key", settingsKey.ToString())
};
var updateTime = String.Empty;
using (var reader = dbhelp.ExecuteReader(CommandType.Text, querySql, parmers))
{
if (reader.Read())
{
updateTime = reader["UpdateTime"].ToString();
}
}
if (String.IsNullOrEmpty(updateTime))
{
return(null);
}
else
{
return(DateTime.Parse(updateTime));
}
}
public string GetSettingsValue(SettingsKeyEnum settingsKey, out int count)
{
string value = String.Empty;
count = 0;
string querySql = " SELECT * FROM NY_Settings WHERE UserAccount=@UserAccount AND [Key]=@Key ";
var parmers = new SqlParameter[] {
new SqlParameter("UserAccount", userAccount),
new SqlParameter("Key", settingsKey.ToString())
};
var reader = dbhelp.ExecuteReader(CommandType.Text, querySql, parmers);
if (reader.Read())
{
count = int.Parse(reader["Count"].ToString());
value = reader["Value"].ToString();
}
return(value);
}
/// <summary>
/// 通过更新间隔来判断当前数据是否需要更新
/// 只有大于间隔时间才会更新
/// </summary>
/// <param name="settingsKey"></param>
/// <param name="syncIntervalMillisecond"></param>
/// <returns></returns>
public bool IsAllowUpdate(SettingsKeyEnum settingsKey, int syncIntervalMillisecond)
{
if (syncIntervalMillisecond == 0)
{
//虽然是立即更新，但是为了防止快速刷新更新重复，设置为间隔2秒更新一次
syncIntervalMillisecond = 2 * 1000;
}
var rs = true;
var updateTime = GetUpdateTime(settingsKey);
if (updateTime.HasValue)
{
if ((DateTime.Now - updateTime.Value).TotalMilliseconds < syncIntervalMillisecond)
{
rs = false;
}
}
return(rs);
}
