利用Newtonsoft.Json实现Json序列化与反序列化

1、创建类用于排除不序列化的属性

public class ExcludePropertiesContractResolver : DefaultContractResolver
{
IEnumerable<string> lstExclude;

public ExcludePropertiesContractResolver(IEnumerable<string> excludedProperties)
{
lstExclude = excludedProperties;
}

protected override IList<JsonProperty> CreateProperties(Type type, MemberSerialization memberSerialization)
{
return base.CreateProperties(type, memberSerialization).ToList().FindAll(p => !lstExclude.Contains(p.PropertyName));
}
}

2、序列化方法

/// <summary>
/// json字符串转换成T对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="jsonStr"></param>
/// <returns></returns>
public static T GetObjectByJsonString<T>(string jsonStr)
{
T obj = JsonConvert.DeserializeObject<T>(jsonStr);
return obj;
}

/// <summary>
/// json字符串转换成List对象
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="jsonStr"></param>
/// <returns></returns>
public static List<T> GetListByJsonString<T>(string jsonStr)
{
List<T> list = JsonConvert.DeserializeObject<List<T>>(jsonStr);
return list;
}