我一直在使用如下文件来保存数据:

field1 field2 field3 field4
myname myhashedpass myemail@email.com more stuff after
etc etc etc etc

每一行都被转换成字符串(姓名、通行证、电子邮件)

我想将我的文本文件(见上文)转换成 XML 文件，如下所示:

<person1>
   <name>myname</name>
   <pass>myhashedpass</pass>
   <email>etc</email>
</person1>

<person2>
etc etc etc etc

基本上，我一直在研究如何进行迁移以及如何以与处理文本数据相同的方式操作 XML 数据

最佳答案

你的问题的乱七八糟的答案是这样的:

using System;
using System.Linq;
using System.Xml.Linq;

namespace XmlSerialization
{
    class Program
    {
        static void Main(string[] args)
        {
            var person1 = new Person();
            person1.Name = "Joe";
            person1.Password = "Cla$$ified";
            person1.Email = "none@your.bussiness";

            var person2 = new Person();
            person2.Name = "Doe";
            person2.Name = "$ecret";
            person2.Email = "dont@spam.me";

            var persons = new[] {person1, person2};

            XElement xml = new XElement("persons",
                                        from person in persons
                                        select new XElement("person",
                                                            new XElement("name", person.Name),
                                                            new XElement("password", person.Password),
                                                            new XElement("email", person.Email))
                                        );
            xml.Save("persons.xml");

            XElement restored_xml = XElement.Load("persons.xml");
            Person[] restored_persons = (from person in restored_xml.Elements("person")
                                         select new Person
                                                    {
                                                        Name = (string)person.Element("name"),
                                                        Password = (string)person.Element("password"),
                                                        Email = (string)person.Element("email")
                                                    })
                                        .ToArray();
            foreach (var person in restored_persons)
            {
                Console.WriteLine(person.ToString());
            }
            Console.ReadLine();
    }
}

public class Person
{
    public string Name { get; set; }
    public string Password { get; set; }
    public string Email { get; set; }
    public override string ToString()
    {
        return string.Format("The person with name {0} has password {1} and email {2}",
                             this.Name, this.Password, this.Email);
    }
}

但是，最好让内置的序列化类为您进行 XML 之间的转换。下面的代码需要显式引用 System.Runtime.Serialization.dll。 using 语句本身是不够的:

using System;
using System.IO;
using System.Linq;
using System.Xml.Linq;
using System.Runtime.Serialization;

namespace XmlSerialization
{
    class Program
    {
        static void Main(string[] args)
        {
            var person1 = new Person();
            person1.Name = "Joe";
            person1.Password = "Cla$$ified";
            person1.Email = "none@your.bussiness";

            var person2 = new Person();
            person2.Name = "Doe";
            person2.Name = "$ecret";
            person2.Email = "dont@spam.me";

            var persons = new[] {person1, person2};

            DataContractSerializer serializer=new DataContractSerializer(typeof(Person[]));
            using (var stream = new FileStream("persons.xml", FileMode.Create, FileAccess.Write))
            {
                serializer.WriteObject(stream,persons);
            }

            Person[] restored_persons;
            using (var another_stream=new FileStream("persons.xml",FileMode.Open,FileAccess.Read))
            {
                restored_persons = serializer.ReadObject(another_stream) as Person[];
            }

            foreach (var person in restored_persons)
            {
                Console.WriteLine(person.ToString());
            }
            Console.ReadLine();
        }
    }

    [DataContract]
    public class Person
    {
        [DataMember]
        public string Name { get; set; }
        [DataMember]
        public string Password { get; set; }
        [DataMember]
        public string Email { get; set; }
        public override string ToString()
        {
            return string.Format("The person with name {0} has password {1} and email {2}",
                                 this.Name, this.Password, this.Email);
        }
    }
}

关于c# - 如何使用 XML 存储简单对象 (C#)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/1523628/