/// <summary>
/// 从html中寻找数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="htmlDocument"></param>
/// <returns></returns>
public static T FindDataByXPath <T>(HtmlDocument htmlDocument)
{
HtmlNode htmlNode = htmlDocument.DocumentNode;
Type type = typeof(T);
object obj = type.GetConstructor(Type.EmptyTypes).Invoke(null);
FindDataConvertAttr findDataConvertAttr = (FindDataConvertAttr)type.GetCustomAttribute(typeof(FindDataConvertAttr));
FindDataConvert findDataConvert = (FindDataConvert)findDataConvertAttr.Type.GetConstructor(Type.EmptyTypes).Invoke(null);
foreach (PropertyInfo propertyInfo in type.GetProperties())
{
foreach (Attribute attr in propertyInfo.GetCustomAttributes(false))
{
if (attr.GetType() == typeof(FindDataAttr))
{
FindDataAttr findDataAttr = (FindDataAttr)attr;
if (findDataAttr.RuleEnum == RuleEnum.XPath)
{
HtmlNode node = FindDataByXPath(htmlNode, findDataAttr.RuleArray);
dynamic convertAfter;
if (findDataConvert.ConvertTo(propertyInfo.Name, node, out convertAfter))
{
propertyInfo.SetValue(obj, convertAfter);
}
else
{
propertyInfo.SetValue(obj, findDataAttr.DefaultVal);
}
continue;
}
}
}
}
return((T)obj);
}
/// <summary>
/// 从json对象寻找数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="jobject"></param>
/// <returns></returns>
public static T FindDataByJsonPath <T>(JObject jobject)
{
Type type = typeof(T);
object obj = type.GetConstructor(Type.EmptyTypes).Invoke(null);
FindDataConvertAttr findDataConvertAttr = (FindDataConvertAttr)type.GetCustomAttribute(typeof(FindDataConvertAttr));
FindDataConvert findDataConvert = (FindDataConvert)findDataConvertAttr.Type.GetConstructor(Type.EmptyTypes).Invoke(null);
foreach (PropertyInfo propertyInfo in type.GetProperties())
{
foreach (Attribute attr in propertyInfo.GetCustomAttributes(false))
{
if (attr.GetType() == typeof(FindDataAttr))
{
FindDataAttr findDataAttr = (FindDataAttr)attr;
if (findDataAttr.RuleEnum == RuleEnum.JsonPath)
{
JToken token = FindDataByJsonPath(jobject, findDataAttr.RuleArray);
dynamic convertAfter;
if (findDataConvert.ConvertTo(propertyInfo.Name, token, out convertAfter))
{
propertyInfo.SetValue(obj, convertAfter);
}
else
{
propertyInfo.SetValue(obj, findDataAttr.DefaultVal);
}
continue;
}
}
}
}
return((T)obj);
}
/// <summary>
/// 从文本中寻找数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="text"></param>
/// <returns></returns>
public static T FindDataByPrefixAndSuffix <T>(string text)
{
Type type = typeof(T);
object obj = type.GetConstructor(Type.EmptyTypes).Invoke(null);
FindDataConvert findDataConvert = null;
if (type.IsDefined(typeof(FindDataConvertAttr), false))
{
FindDataConvertAttr findDataConvertAttr = (FindDataConvertAttr)type.GetCustomAttribute(typeof(FindDataConvertAttr));
findDataConvert = (FindDataConvert)findDataConvertAttr.Type.GetConstructor(Type.EmptyTypes).Invoke(null);
}
foreach (PropertyInfo propertyInfo in type.GetProperties())
{
foreach (Attribute attr in propertyInfo.GetCustomAttributes(false))
{
if (attr.GetType() == typeof(FindDataAttr))
{
FindDataAttr findDataAttr = (FindDataAttr)attr;
if (findDataAttr.RuleEnum == RuleEnum.PrefixSuffix)
{
string dataStr = FindDataByPrefixAndSuffix(text, findDataAttr.RuleArray);
dynamic convertAfter;
if (findDataConvert != null && findDataConvert.ConvertTo(propertyInfo.Name, dataStr, out convertAfter))
{
propertyInfo.SetValue(obj, convertAfter);
}
else
{
propertyInfo.SetValue(obj, string.IsNullOrEmpty(dataStr) || string.IsNullOrEmpty(dataStr.Trim()) ? findDataAttr.DefaultVal : dataStr);
}
continue;
}
}
}
}
return((T)obj);
}
