DeviceCtl-1/BaseLib/RWFile/Json.cs

using System;
using System.Text;
using System.IO;
using System.Windows.Forms;
using System.Collections;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using Newtonsoft.Json.Converters;

namespace BaseLibRWFile
{
     //需根据实际要求编写
    public class LotModel
    {
        public string Name { get; set; }
        public string Address { get; set; }
        public Hashtable Devices { get; set; }
        public string Doors { get; set; }
    }
    public class ClsJson
    {
        public void Write(string jsonfile, string MainContent, string ChildContent, string ChildValue)
        {
            try
            {
                string[] MainContects = MainContent.Split(',');
                string[] ChildContects = ChildContent.Split(',');
                string[] ChildValues = ChildValue.Split(',');
                //子集
                Hashtable device = new Hashtable();
                //device.Add("www", ChildValues);
                if (ChildContects.Length == ChildValues.Length)
                {
                    for (int i = 0; i < ChildContects.Length; i++)
                    {
                        device.Add(ChildContects[i], ChildValues[i]);
                    }
                }


                LotModel lot = new LotModel
                {
                    Name = MainContects[0],
                    Address = MainContects[1],
                    Devices = device, //注意是子集
                    Doors = MainContects[3]
                }; //实体模型类 

                //序列化 
                string js1 = JsonConvert.SerializeObject(lot);
                string js2 = JsonConvert.SerializeObject(device);

                //反序列化 
                LotModel debc1 = JsonConvert.DeserializeObject<LotModel>(js1);
                LotModel debc2 = JsonConvert.DeserializeObject<LotModel>(js2);

                //找到服务器物理路径 
                //string serverAppPath = Request.PhysicalApplicationPath.ToString(); 

                if (!File.Exists(jsonfile))
                {
                    FileStream fs1 = new FileStream(jsonfile, FileMode.Create, FileAccess.ReadWrite);
                    fs1.Close();
                    //File.Create(jsonfile);
                }

                //把模型数据写到文件 
                using (StreamWriter sw = new StreamWriter(jsonfile))
                {
                    JsonSerializer serializer = new JsonSerializer();
                    serializer.Converters.Add(new JavaScriptDateTimeConverter());
                    serializer.NullValueHandling = NullValueHandling.Ignore;

                    //构建Json.net的写入流 
                    JsonWriter writer = new JsonTextWriter(sw);
                    //把模型数据序列化并写入Json.net的JsonWriter流中 
                    serializer.Serialize(writer, lot);
                    //ser.Serialize(writer, ht); 
                    writer.Close();
                    sw.Close();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Write Json Error:" + ex.ToString());
            }
        }
        public void Read(string jsonfile, ref string MainContent, ref string ChildValue)
        {
            try
            {
                if (!File.Exists(jsonfile))
                {
                    FileStream fs1 = new FileStream(jsonfile, FileMode.Create, FileAccess.ReadWrite);
                    fs1.Close();
                }
                using (StreamReader file = File.OpenText(jsonfile))
                {
                    using (JsonTextReader reader = new JsonTextReader(file))
                    {
                        JObject o = (JObject)JToken.ReadFrom(reader);
                        string a = o["Name"].ToString();
                        var b = o["Address"];
                        JToken c = o["Devices"];
                        var d = o["Doors"];
                        MainContent = a.ToString() + "," + b.ToString() + "," + c.ToString() + "," + d.ToString();
                        var deviceID = c["id"].ToString();
                        var name = c["name"].ToString();
                        var IP = c["ip"].ToString();
                        ChildValue = deviceID.ToString() + "," + name.ToString() + "," + IP.ToString();
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Read Json Error:" + ex.ToString());
            }
        }
        public void Update(string jsonfile, string MainContent, string ChildContent, string ChildValue)
        {
            try
            {
                //jsonfile = jsonfile + "\\" + jsonname;//"D://config.json"; //Directory.GetCurrentDirectory() + "\\config.json";
                if (File.Exists(jsonfile))
                {
                    string jsonString = File.ReadAllText(jsonfile, Encoding.Default);//读取文件
                    JObject jobject = JObject.Parse(jsonString);//解析成json
                    if (!string.IsNullOrEmpty(ChildContent))
                    {
                        jobject[MainContent][ChildContent] = ChildValue;//替换需要的文件
                    }
                    else
                    {
                        jobject[MainContent] = ChildValue;//替换需要的文件
                    }
                    string convertString = Convert.ToString(jobject);//将json装换为string
                    File.WriteAllText(jsonfile, convertString);//将内容写进jon文件中
                }
                else
                {
                    FileStream fs1 = new FileStream(jsonfile, FileMode.Create, FileAccess.ReadWrite);
                    fs1.Close();
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("Updata Json Error:" + ex.ToString());
            }
        }
    }
}