C#、Asp.Net中将一个Json数据转换为泛型集合(或实体)
有需要的看一下哦！此方法针对于前端页面向后台传递Json数据集合，如：[{'a':'','b':""}，....]格式的数据，然后在后台进行拆分，然后批量导入数据库
#region Json数据转换为泛型集合(或实体)
/// <summary>
/// 单条json数据转换为实体
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="str">字符窜（格式为{a:'',b:''}）</param>
/// <returns></returns>
private static T ConvertToEntity<T>(string str)
{
Type t = typeof(T);
object obj = Activator.CreateInstance(t);
var properties = t.GetProperties();
string m = str.Trim('{').Trim('}');
string[] arr = m.Split(',');
for (int i = 0; i < arr.Length; i++)
{
for (int k = 0; k < properties.Length; k++)
{
string Name = arr[i].Substring(0, arr[i].IndexOf(":"));
object Value = arr[i].Substring(arr[i].IndexOf(":") + 1);
if (properties[k].Name.Equals(Name))
{
if (properties[k].PropertyType.Equals(typeof(int)))
{
properties[k].SetValue(obj, Convert.ToInt32(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(string)))
{
properties[k].SetValue(obj, Convert.ToString(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(long)))
{
properties[k].SetValue(obj, Convert.ToInt64(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(decimal)))
{
properties[k].SetValue(obj, Convert.ToDecimal(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(double)))
{
properties[k].SetValue(obj, Convert.ToDouble(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(Nullable<int>)))
{
properties[k].SetValue(obj, Convert.ToInt32(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(Nullable<decimal>)))
{
properties[k].SetValue(obj, Convert.ToDecimal(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(Nullable<long>)))
{
properties[k].SetValue(obj, Convert.ToInt64(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(Nullable<double>)))
{
properties[k].SetValue(obj, Convert.ToDouble(Value), null);
}
if (properties[k].PropertyType.Equals(typeof(Nullable<DateTime>)))
{
properties[k].SetValue(obj, Convert.ToDateTime(Value), null);
}
}
}
}
return (T)obj;
}
/// <summary>
/// 多条Json数据转换为泛型数据
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="jsonArr">字符窜（格式为[{a:'',b:''},{a:'',b:''},{a:'',b:''}]）</param>
/// <returns></returns>
public static List<T> ConvertTolist<T>(this string jsonArr)
{
if (!string.IsNullOrEmpty(jsonArr) && jsonArr.StartsWith("[") && jsonArr.EndsWith("]"))
{
Type t = typeof(T);
var proPerties = t.GetProperties();
List<T> list = new List<T>();
string recive = jsonArr.Trim('[').Trim(']').Replace("'", "").Replace("\"", "");
string[] reciveArr = recive.Replace("},{", "};{").Split(';');
foreach (var item in reciveArr)
{
T obj = ConvertToEntity<T>(item);
list.Add(obj);
}
return list;
}
return null;
}
#endregion
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