使用XmlSerializer可将C#复杂嵌套对象序列化为XML,需确保类有默认构造函数且属性公开;通过特性如[XmlElement]、[XmlArray]等可自定义元素名称和结构;支持嵌套对象与数组,但不支持泛型接口和字段,需避免循环引用。

在 C# 中将复杂的嵌套对象序列化为 XML,最常用的方式是使用 XmlSerializer 类。只要类和属性正确标注了可序列化的结构,即使是多层嵌套的对象也能顺利转换为 XML。
例如,定义一个包含嵌套对象的学生信息类:
using System;
using System.Xml.Serialization;
[Serializable]
public class Student
{
public string Name { get; set; }
public int Age { get; set; }
// 嵌套对象
public Address HomeAddress { get; set; }
// 集合类型的嵌套
public Course[] Courses { get; set; }
}
public class Address
{
public string Street { get; set; }
public string City { get; set; }
public string ZipCode { get; set; }
}
public class Course
{
public string Title { get; set; }
public int Credits { get; set; }
}using System;
using System.IO;
using System.Xml;
// 创建学生对象
var student = new Student
{
Name = "张三",
Age = 20,
HomeAddress = new Address
{
Street = "中山路123号",
City = "北京",
ZipCode = "100000"
},
Courses = new Course[]
{
new Course { Title = "数学", Credits = 4 },
new Course { Title = "英语", Credits = 3 }
}
};
// 序列化为 XML
var serializer = new XmlSerializer(typeof(Student));
using (var writer = XmlWriter.Create("student.xml", new XmlWriterSettings
{
Indent = true
}))
{
serializer.Serialize(writer, student);
}生成的 XML 类似如下:
<Student>
<Name>张三</Name>
<Age>20</Age>
<HomeAddress>
<Street>中山路123号</Street>
<City>北京</City>
<ZipCode>100000</ZipCode>
</HomeAddress>
<Courses>
<Course>
<Title>数学</Title>
<Credits>4</Credits>
</Course>
<Course>
<Title>英语</Title>
<Credits>3</Credits>
</Course>
</Courses>
</Student>[XmlRoot("Person")]
public class Student
{
[XmlElement("StudentName")]
public string Name { get; set; }
[XmlElement("Residence")]
public Address HomeAddress { get; set; }
[XmlArray("EnrolledCourses")]
[XmlArrayItem("CourseItem")]
public Course[] Courses { get; set; }
}这样输出会变成:
<Person>
<StudentName>张三</StudentName>
<Residence>
<Street>中山路123号</Street>
<City>北京</City>
<ZipCode>100000</ZipCode>
</Residence>
<EnrolledCourses>
<CourseItem>
<Title>数学</Title>
<Credits>4</Credits>
</CourseItem>
<CourseItem>
<Title>英语</Title>
<Credits>3</Credits>
</CourseItem>
</EnrolledCourses>
</Person>基本上就这些。只要结构清晰、属性公开、嵌套对象也符合序列化要求,C# 的 XmlSerializer 就能很好地处理复杂对象转 XML。
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