读写XML

 1 static void Main(string[] args)
 2         {
 3             DataTable table = GetDataTable();
 4             List<Student> stuList = TableToList(table);
 5             XDocument xdoc = new XDocument();
 6             XElement root = new XElement("Person");
 7             xdoc.Add(root);//添加根节点
 8             foreach (Student stu in stuList)
 9             {
10                 XElement stuEle = new XElement("Student");
11                 stuEle.SetAttributeValue("stuId",stu.Student_Id.ToString());//设置属性
12                 stuEle.SetElementValue("name",stu.Name);//设置子节点和值
13                 stuEle.SetElementValue("class", stu.Class);
14                 stuEle.SetElementValue("gender", stu.Gender);
15                 root.Add(stuEle);
16             }
17             xdoc.Save("1.xml");
18             Console.WriteLine("数据库写入完毕");
19             Console.ReadKey();
20         }
21         /// <summary>
22         /// 读取数据库表数据
23         /// </summary>
24         /// <returns></returns>
25         public static DataTable GetDataTable()
26         {
27             string connstr = ConfigurationManager.ConnectionStrings["connstr"].ConnectionString;
28            DataSet ds= MySqlHelper.ExecuteDataset(connstr,"select * from student");
29            return ds.Tables[0];
30         }
31         /// <summary>
32         /// 将行转换为list
33         /// </summary>
34         /// <param name="table"></param>
35         /// <returns></returns>
36         public static List<Student> TableToList(DataTable table)
37         {
38             List<Student> list = new List<Student>();
39             for (int i = 0; i < table.Rows.Count; i++)
40             {
41                 Student stu = new Student();
42                 DataRow row=table.Rows[i];
43                 stu.Class = row["Class"].ToString();
44                 stu.Gender = row["Gender"].ToString();
45                 stu.Name = row["Name"].ToString();
46                 stu.Student_Id = Convert.ToInt32(row["Student_Id"]);
47                 list.Add(stu);
48             }
49             return list;
50         }

 1            string connstr = "server=localhost;database=test;user id=root;password=123";
 2             XDocument xdoc = XDocument.Load(@"F:\tmp\1.xml");
 3             XElement root = xdoc.Root;
 4             foreach (XElement item in root.Elements())
 5             {
 6                 //Console.WriteLine(item.Element("name").Value);
 7                 //Console.WriteLine(item.Element("class").Value);
 8                 //Console.WriteLine(item.Element("gender").Value);
 9                 string sql = "insert into student(Student_Id,Name,Class,Gender)values(@Student_Id,@Name,@Class,@Gender)";
10                 MySqlParameter[] ps = { 
11                                       new MySqlParameter("@Student_Id",item.Attribute("stuId").Value),//读取属性值
12                                       new MySqlParameter("@Name",item.Element("name").Value),//读取子节点值
13                                       new MySqlParameter("@Class",item.Element("class").Value),
14                                       new MySqlParameter("@Gender",item.Element("gender").Value)
15                                       };
16                 MySqlHelper.ExecuteNonQuery(connstr, sql, ps);//插入数据库
17             }
18             Console.WriteLine("ok");
19             Console.ReadKey();