//生成响应体
private T GenerateResponseEntity <T>(string xmlBody)
where T : class, new()
{
T instance = new T();
XmlDocument responseDocument = new XmlDocument();
responseDocument.LoadXml(xmlBody);
//将响应信息转换成XML格式后存入Dictionary
Dictionary <string, object> responseEntity = new Dictionary <string, object>();
foreach (XmlNode child in responseDocument.DocumentElement.ChildNodes)
{
responseEntity.Add(child.Name, child.InnerText);
}
//根据T类型的属性特征声明映射名称填充属性值
foreach (PropertyInfo property in typeof(T).GetRuntimeProperties())
{
ResponseNameAttribute responseName = property.GetCustomAttribute <ResponseNameAttribute>();
if (responseName == null)
{
throw new InvalidOperationException();
}
if (responseEntity.ContainsKey(responseName.Name))
{
property.SetValue(instance, responseEntity[responseName.Name]);
}
}
return(instance);
}
//检验响应体的合法性
private bool CheckResponseLegal <T>(T entity)
where T : ResponseBase, new()
{
SortedList <string, string> properties = new SortedList <string, string>();
foreach (PropertyInfo property in typeof(T).GetRuntimeProperties())
{
ResponseNameAttribute requestName = property.GetCustomAttribute <ResponseNameAttribute>();
if (requestName == null)
{
throw new ArgumentOutOfRangeException(nameof(entity));
}
object value = property.GetValue(entity);
if (value != null)
{
properties.Add(requestName.Name, value.ToString());
}
}
string sign = this.CalculateSign(properties, entity.SignType == null
? WechatPaySignType.MD5
: entity.SignType == "MD5"
? WechatPaySignType.MD5
: WechatPaySignType.HMACSHA256
);
return(sign == entity.Sign);
}
