保存配置的方法

A. 文本直接保存
B. 序列化與反序列化
C. XML

引入命名空間：

using System.IO;

一、文本直接保存

通過類【iniHelper】對(duì)數(shù)據(jù)進(jìn)行直接保存，文件名：Config.ini 保存結(jié)果如下

[PLC參數(shù)] IP=192.168.2.4 Port=19622

1.1 引入命名空間

using System.IO;

1.2 新增IniConfigHelper 類

using System; using System.Text; using System.IO; using System.Runtime.InteropServices; using System.Collections.Generic;namespace Helper {public class IniConfigHelper{public static string filePath = "";#region API函數(shù)聲明[DllImport("kernel32")]private static extern long WritePrivateProfileString(string section, string key,string val, string filePath);//需要調(diào)用GetPrivateProfileString的重載[DllImport("kernel32", EntryPoint = "GetPrivateProfileString")]private static extern long GetPrivateProfileString(string section, string key,string def, StringBuilder retVal, int size, string filePath);[DllImport("kernel32", EntryPoint = "GetPrivateProfileString")]private static extern uint GetPrivateProfileStringA(string section, string key,string def, Byte[] retVal, int size, string filePath);#endregion#region 獲取所有的Sections/// <summary>/// 獲取所有的Sections/// </summary>/// <param name="iniFilename">文件路徑</param>/// <returns>Sections集合</returns>public static List<string> ReadSections(string iniFilename){List<string> result = new List<string>();Byte[] buf = new Byte[65536];uint len = GetPrivateProfileStringA(null, null, null, buf, buf.Length, iniFilename);int j = 0;for (int i = 0; i < len; i++)if (buf[i] == 0){result.Add(Encoding.Default.GetString(buf, j, i - j));j = i + 1;}return result;}#endregion#region 獲取指定Section下的所有Keys/// <summary>/// 獲取指定Section下的所有Keys/// </summary>/// <param name="SectionName">SectionName</param>/// <param name="iniFilename">文件路徑</param>/// <returns>Keys集合</returns>public static List<string> ReadKeys(string SectionName, string iniFilename){List<string> result = new List<string>();Byte[] buf = new Byte[65536];uint len = GetPrivateProfileStringA(SectionName, null, null, buf, buf.Length, iniFilename);int j = 0;for (int i = 0; i < len; i++)if (buf[i] == 0){result.Add(Encoding.Default.GetString(buf, j, i - j));j = i + 1;}return result;}#endregion#region 讀Ini文件public static string ReadIniData(string Section, string Key, string NoText){return ReadIniData(Section, Key, NoText, filePath);}public static string ReadIniData(string Section, string Key, string NoText, string iniFilePath){if (File.Exists(iniFilePath)){StringBuilder temp = new StringBuilder(1024);GetPrivateProfileString(Section, Key, NoText, temp, 1024, iniFilePath);return temp.ToString();}else return string.Empty;}#endregion#region 寫Ini文件public static bool WriteIniData(string Section, string Key, string Value){return WriteIniData(Section, Key, Value, filePath);}public static bool WriteIniData(string Section, string Key, string Value, string iniFilePath){long OpStation = WritePrivateProfileString(Section, Key, Value, iniFilePath);if (OpStation == 0)return false;else return true;}#endregion} }

1.3 測試新建數(shù)據(jù)

private void button1_Click(object sender, EventArgs e) {Helper.IniConfigHelper.WriteIniData("PLC參數(shù)", "IP", "192.168.2.4", Application.StartupPath + "\\Settings.ini"); }

1.4 關(guān)閉窗口時(shí)保存數(shù)據(jù)

private void Form1_FormClosing(object sender, FormClosingEventArgs e) {// 如果文件不存在則創(chuàng)建文件后再保存if (!File.Exists(configPath)){FileStream fileStream = new FileStream(configPath, FileMode.Create);fileStream.Close();}IniConfigHelper.WriteIniData("PLC參數(shù)", "IP", this.textBoxIPAddress.Text.Trim(), configPath);IniConfigHelper.WriteIniData("PLC參數(shù)", "Port", this.textBoxPort.Text.Trim(), configPath); }

1.5 窗口加載時(shí)讀取數(shù)據(jù)

private void Form1_Load(object sender, EventArgs e) {// 如果文件存在，則讀取相應(yīng)的參數(shù)信息if (File.Exists(configPath)){this.textBoxIPAddress.Text = IniConfigHelper.ReadIniData("PLC參數(shù)", "IP", "", configPath);this.textBoxPort.Text = IniConfigHelper.ReadIniData("PLC參數(shù)", "Port", "", configPath);} }

二、序列化與反序列化

• 更方便讀取和寫入大量配置信息
• 數(shù)據(jù)更安全

1.1 引入命名空間

using System.IO; using System.Runtime.Serialization.Formatters.Binary;

1.2 新增Student 類

using System; using System.Collections.Generic; using System.Text;namespace #此處修改為項(xiàng)目名稱 {[Serializable] // 對(duì)象可序列化標(biāo)記，必須class Student{public string Name { get; set; }public string Gender { get; set; }public int Age { get; set; }public DateTime Birthday { get; set; }} }

1.3 保存配置

private void btnSerialize_Click(object sender, EventArgs e) {//封裝對(duì)象信息Student objStu = new Student(){Name = this.txtName.Text.Trim(),Age = Convert.ToInt16(this.txtAge.Text.Trim()),Gender = this.txtGender.Text.Trim(),Birthday = Convert.ToDateTime(this.txtBirthday.Text.Trim())};//【1】創(chuàng)建文件流FileStream fs = new FileStream("C:\\objStu.obj", FileMode.Create);//【2】創(chuàng)建二進(jìn)制格式化器BinaryFormatter formatter = new BinaryFormatter();//【3】調(diào)用序列化方法formatter.Serialize(fs, objStu);//【4】關(guān)閉文件流fs.Close(); }

1.3 打開配置

private void btnDeserialize_Click(object sender, EventArgs e) {//【1】創(chuàng)建文件流FileStream fs = new FileStream("C:\\objStu.obj", FileMode.Open);//【2】創(chuàng)建二進(jìn)制格式化器BinaryFormatter formatter = new BinaryFormatter();//【3】調(diào)用序列化方法Student objStu = (Student)formatter.Deserialize(fs);//【4】關(guān)閉文件流fs.Close();//顯示對(duì)象屬性this.txtName.Text = objStu.Name;this.txtAge.Text = objStu.Age.ToString();this.txtGender.Text = objStu.Gender;this.txtBirthday.Text = objStu.Birthday.ToShortDateString(); }

三、XML

1.1 引入命名空間

using System.Xml;

1.2 XML示范文件

<Students><Student><StuName>王永利</StuName><StuAge>19</StuAge><Gender>男</Gender><ClassName>計(jì)算機(jī)1班</ClassName></Student><Student><StuName>王大拿</StuName><StuAge>22</StuAge><Gender>男</Gender><ClassName>計(jì)算機(jī)2班</ClassName></Student><DataInfo><Version vNo="1.2" pTime="2012-12-12">數(shù)據(jù)版本信息</Version></DataInfo> </Students>

1.3 寫入XML文件（待補(bǔ)充）

1.4 讀取XML文件

private void btnLoadXML_Click(object sender, EventArgs e) {XmlDocument objDoc = new XmlDocument(); //【1】創(chuàng)建XML文檔操作對(duì)象objDoc.Load("StuScore.xml"); //【2】加載XML文件到文檔對(duì)象中XmlNode rootNode = objDoc.DocumentElement; //【3】獲取XML文檔根目錄List<Student> list = new List<Student>();//創(chuàng)建對(duì)象集合 foreach (XmlNode stuNode in rootNode.ChildNodes) //【4】遍歷根節(jié)點(diǎn)（根節(jié)點(diǎn)包含所有節(jié)點(diǎn)）{if (stuNode.Name == "Student"){Student objStu = new Student();foreach (XmlNode subNode in stuNode) //【5】遍歷子節(jié)點(diǎn){switch (subNode.Name)//根據(jù)子節(jié)點(diǎn)的名稱封裝到對(duì)象的屬性{case "StuName":objStu.StuName = subNode.InnerText;//獲取《節(jié)點(diǎn)名稱》對(duì)應(yīng)的《節(jié)點(diǎn)值》break;case "StuAge":objStu.StuAge = Convert.ToInt16(subNode.InnerText);break;case "Gender":objStu.Gender = subNode.InnerText;break;case "ClassName":objStu.ClassName = subNode.InnerText;break;}}list.Add(objStu);}}this.dgvStuList.DataSource = list; }

1.5 查找方法

private void btnShowVersion_Click(object sender, EventArgs e) {//創(chuàng)建XML讀取器XmlTextReader tReader = new XmlTextReader("StuScore.xml");string info = string.Empty;//循環(huán)查詢while (tReader.Read()){if (tReader.Name == "Version"){info = "版本：" + tReader.GetAttribute("vNo") + " 發(fā)布時(shí)間：" + tReader.GetAttribute("pTime");break;}}MessageBox.Show(info,"數(shù)據(jù)版本"); }

寫在最后

本博文只是我在學(xué)習(xí)c#的過程中所做的筆記，方便以后查閱實(shí)現(xiàn)過程。資料均來自網(wǎng)上，如果有侵權(quán)請(qǐng)聯(lián)系我刪除，謝謝。

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