public bool Match(RouteMap map, string url, out RouteEntity routeEntity)
{
if (map == null)
{
throw new ArgumentNullException(nameof(map));
}
if (String.IsNullOrWhiteSpace(url))
{
throw new ArgumentNullException(nameof(url));
}
routeEntity = new RouteEntity();
var urlPath = url.TrimStart('/');
var mapPath = map.Template.TrimStart('/');
(bool result, IList <string> data) = Match(url, map);
if (!result)
{
return(false);
}
routeEntity = new RouteEntity();
var _list = map.GetRouteList();
for (int i = 0; i < data.Count && i < _list?.Count; i++)
{
switch (_list?[i].ToLower())
{
case "controller": routeEntity.Controller = String.IsNullOrWhiteSpace(data[i]) ? map.DefaultController : data[i];
; break;
case "action": routeEntity.Action = String.IsNullOrWhiteSpace(data[i]) ? map.DefaultAction : data[i];
break;
case "parameter":
routeEntity.DefaultParameter = map.DefaultParameter;
routeEntity.ParameterValue = data[i];
break;
}
}
return(true);
}
/// <summary>
/// 验证路由数据的存在的存在
/// </summary>
/// <param name="map"></param>
/// <param name="url"></param>
/// <returns>返回值依次是验证结果，路由的参数</returns>
private (bool, IList <string>) Match(string url, RouteMap map)
{
if (String.IsNullOrWhiteSpace(url))
{
throw new ArgumentNullException(nameof(url));
}
var template = map.Template;
var a = url.IndexOf('?'); // 考虑到xxxx/1?xxx=xxxx的情况
if (a > 0)
{
url = url.Substring(0, a);
}
url.TrimStart('/');
template.TrimStart('/');
var s_template = template.Split('/');
var s_url = url.Split('/');
IList <string> list = new List <string>(3);
for (int i = 0; i < s_url.Length && i < s_template.Length; i++)
{
var temp_index = s_template[i].IndexOf("{@}");
var temp_url = s_url[i];
var temp_template = s_template[i];
while (temp_index >= 0)
{
if (temp_index == 0)
{
if (temp_template.Length == 3)
{
list.Add(s_url[i]);
//temp_index = s_template[i].IndexOf("{@}", temp_index + 2);
break;
}
else if (temp_template.Length > 3)
{
// {@}的下一个字符必然是分隔符，我们就是这么定义的
var index = temp_url.IndexOf(temp_template[3]);
list.Add(temp_url.Substring(0, index));
temp_index = temp_template.IndexOf("{@}", 3);
temp_url = temp_url.Substring(index);
temp_template = temp_template.Substring(3);
continue;
}
else
{
// 不存在temp_template.Length < 3的情况
break;
}
}
else
{
var front = temp_template.Substring(0, temp_index);
if (temp_url.StartsWith(front, StringComparison.OrdinalIgnoreCase))
{
var index = temp_url.IndexOf(temp_template[temp_index + 3]);
list.Add(temp_url.Substring(temp_index, index));
temp_url = temp_url.Substring(index);
index = temp_index;
temp_index = temp_template.IndexOf("{@}", index + 3);
temp_template = temp_template.Substring(index + 3);
}
}
}
}
return(list.Count != 0, list);
}