/// <summary>
/// 创建一个可处理HttpContext请求的HttpHandler实例
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public virtual IHttpHandler CreateHandler(HttpContext context)
{
IHttpHandler handler = CreateOptionsHandler(context)
?? CreateDefaultHandler(context)
?? CreateHandlerByFactory(context, true)
?? CreateHandlerByRouting(context)
?? CreateHandlerByFactory(context, false)
?? CreateHandler404(context);
// 为处理器类型设置 HttpContext
IRequireHttpContext xx = handler as IRequireHttpContext;
if (xx != null)
{
xx.HttpContext = context;
}
return(handler);
}
/// <summary>
/// 处理HTTP请求的入口方法
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public async Task <IActionResult> ProcessRequestAsync(HttpContext context)
{
IRequireHttpContext xx = _instance as IRequireHttpContext;
if (xx != null)
{
xx.HttpContext = context;
}
// 构造方法的调用参数
ParameterResolver pr = ObjectFactory.New <ParameterResolver>();
object[] parameters = pr.GetParameters(_method, context.Request);
// 执行方法
object result = null;
if (_isTaskMethod)
{
if (_hasReturn)
{
Task task = (Task)_method.FastInvoke(_instance, parameters);
await task;
// 从 Task<T> 中获取返回值
PropertyInfo property = task.GetType().GetProperty("Result", BindingFlags.Instance | BindingFlags.Public);
result = property.FastGetValue(task);
}
else
{
await(Task) _method.FastInvoke(_instance, parameters);
}
}
else
{
if (_hasReturn)
{
result = _method.FastInvoke(_instance, parameters);
}
else
{
_method.FastInvoke(_instance, parameters);
}
}
// 没有执行结果，直接返回（不产生输出）
if (result == null)
{
return(null);
}
// 转换结果
IActionResult actionResult = result as IActionResult;
if (actionResult == null)
{
ResultConvert converter = ObjectFactory.New <ResultConvert>();
actionResult = converter.Convert(result, context);
}
return(actionResult);
}
