JsonHelper.cs
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using System;
using System.Collections.Generic;
using System.IO;
using Newtonsoft.Json;
namespace URSoldering.Common
{
/// <summary>
/// Json帮助类
/// </summary>
public class JsonHelper
{
/// <summary>
/// 将对象序列化为JSON格式
/// </summary>
/// <param name="o">对象</param>
/// <returns>json字符串</returns>
public static string SerializeObject(object o)
{
string json = JsonConvert.SerializeObject(o);
return json;
}
/// <summary>
/// 将对象序列化为JSON格式
/// </summary>
/// <param name="o">对象</param>
/// <returns>json字符串</returns>
public static bool SerializeObjectToFile(object o, string filePath)
{
try
{
string json = JsonConvert.SerializeObject(o);
if (File.Exists(filePath))
{
string backUpPath = "D:/configBack/" + Path.GetFileName(filePath) + "." + DateTime.Now.ToFileTime();
string parentDir = Path.GetDirectoryName(backUpPath);
if (!Directory.Exists(parentDir))
{
Directory.CreateDirectory(parentDir);
}
File.Copy(filePath, backUpPath);
File.Delete(filePath);
}
File.WriteAllText(filePath, json);
LogUtil.error("保存文件到[" + filePath + "]");
return true;
}
catch (Exception ex)
{
LogUtil.error("保存文件到[" + filePath + "]失败："+ex.Message);
}
return false;
}
/// <summary>
/// 解析JSON字符串生成对象实体
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="json">json字符串(eg.{"ID":"112","Name":"石子儿"})</param>
/// <returns>对象实体</returns>
public static T DeserializeJsonToObject<T>(string json) where T : class
{
JsonSerializer serializer = new JsonSerializer();
StringReader sr = new StringReader(json);
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(T));
T t = o as T;
return t;
}
/// <summary>
/// 解析JSON数组生成对象实体集合
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="json">json数组字符串(eg.[{"ID":"112","Name":"石子儿"}])</param>
/// <returns>对象实体集合</returns>
public static List<T> DeserializeJsonToList<T>(string json) where T : class
{
JsonSerializer serializer = new JsonSerializer();
StringReader sr = new StringReader(json);
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(List<T>));
List<T> list = o as List<T>;
return list;
}
/// <summary>
/// 解析文件
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="json">json数组字符串(eg.[{"ID":"112","Name":"石子儿"}])</param>
/// <returns>对象实体集合</returns>
public static List<T> DeserializeJsonToListFromFile<T>(string filePath) where T : class
{
filePath = StringUtil.getAbsPath(filePath);
if (!File.Exists(filePath))
{
LogUtil.error("加载：文件[" + filePath + "]不存在");
return new List<T>();
}
string jsonTxt = File.ReadAllText(filePath);
JsonSerializer serializer = new JsonSerializer();
StringReader sr = new StringReader(jsonTxt);
object o = serializer.Deserialize(new JsonTextReader(sr), typeof(List<T>));
List<T> list = o as List<T>;
return list;
}
/// <summary>
/// 反序列化JSON到给定的匿名对象.
/// </summary>
/// <typeparam name="T">匿名对象类型</typeparam>
/// <param name="json">json字符串</param>
/// <param name="anonymousTypeObject">匿名对象</param>
/// <returns>匿名对象</returns>
public static T DeserializeAnonymousType<T>(string json, T anonymousTypeObject)
{
T t = JsonConvert.DeserializeAnonymousType(json, anonymousTypeObject);
return t;
}
}
}