通過C#動態生成圖書信息XML文件（Books.xml），文件如下：

1. <?xml version="1.0" encoding="iso-8859-1"?>
2. <bookstore>
4. <book id="1" category="CHILDREN">
5. <title>Harry Potter</title>
6. <author>J K. Rowling</author>
7. <publishDate>2005-08-15</publishDate>
8. <price>29.99</price>
9. </book>
11. <book id="2" category="WEB">
12. <title>Learning XML</title>
13. <author>Erik T. Ray</author>
14. <publishDate>2003-10-18</publishDate>
15. <price>39.95</price>
16. </book>
18. </bookstore>
19. 方法1：使用StringBuilder拼接XML
20. 1. /// <summary>
    2. /// 創建圖書信息XML
    3. /// </summary>
    4. public void CreateBookXML(string fileName)
    5. {
    6. StringBuilder xmlResult = new StringBuilder("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
    7. List<BookInfo> bookList = GetBookList(); //獲取圖書列表
    8. if (bookList != null && bookList.Count > 0)
    9. {
    10. xmlResult.Append("<bookstore>");
    11. foreach (BookInfo book in bookList)
    12. {
    13. xmlResult.AppendFormat("<book id=\"{0}\" category=\"{1}\">", book.BookId, book.Category);
    14. xmlResult.AppendFormat("<title>{0}</title>", book.Title);
    15. xmlResult.AppendFormat("<author>{0}</author>", book.Author);
    16. xmlResult.AppendFormat("<publishDate>{0}</publishDate>", book.PublishDate.ToString("yyyy-MM-dd"));
    17. xmlResult.AppendFormat("<price>{0}</price>", book.Price);
    18. xmlResult.Append("</book>");
    19. }
    20. xmlResult.Append("</bookstore>");
    21. }
    23. //寫入文件
    24. try
    25. {
    26. //1.創建文件流
    27. FileStream fileStream = new FileStream(fileName, FileMode.Create);
    28. //2.創建寫入器
    29. StreamWriter streamWriter = new StreamWriter(fileStream);
    30. //3.將內容寫入文件
    31. streamWriter.WriteLine(xmlResult);
    32. //4.關閉寫入器
    33. streamWriter.Close();
    34. //5.關閉文件流
    35. fileStream.Close();
    36. }
    37. catch (Exception e)
    38. { }
    39. }
    40. 方法2：使用XmlTextWriter類創建XML
        1. /// <summary>
        2. /// 創建圖書信息XML
        3. /// </summary>
        4. /// <param name="fileName"></param>
        5. public void CreateBookXML(string fileName)
        6. {
        7. try
        8. {
        9. FileStream fileStream = new FileStream(fileName, FileMode.Create);
        10. XmlTextWriter writer = new XmlTextWriter(fileStream, Encoding.UTF8);
        11. List<BookInfo> bookList = GetBookList(); //獲取圖書列表
        12. if (bookList != null && bookList.Count > 0)
        13. {
        14. writer.WriteStartDocument();
        15. writer.WriteStartElement("bookstore"); //創建父節點
        16. foreach (BookInfo book in bookList)
        17. {
        18. writer.WriteStartElement("book"); //創建子節點
        19. writer.WriteAttributeString("id", book.BookId.ToString()); //添加屬性
        20. writer.WriteAttributeString("category", book.Category);
        21. //圖書名稱節點
        22. writer.WriteStartElement("title");
        23. writer.WriteValue(book.Title); //節點賦值
        24. writer.WriteEndElement();
        25. //圖書作者節點
        26. writer.WriteStartElement("author");
        27. writer.WriteValue(book.Author);
        28. writer.WriteEndElement();
        29. //出版時間節點
        30. writer.WriteStartElement("publishDate");
        31. writer.WriteValue(book.PublishDate.ToString("yyyy-MM-dd"));
        32. writer.WriteEndElement();
        33. //銷售價格節點
        34. writer.WriteStartElement("price");
        35. writer.WriteValue(book.Price);
        36. writer.WriteEndElement();
        38. writer.WriteEndElement(); //子節點結束
        39. }
        40. writer.WriteEndElement(); //父節點結束
        41. }
        42. writer.WriteEndDocument();
        43. writer.Close();
        44. fileStream.Close();
        45. }
        46. catch (Exception e)
        47. { }
        48. }
        49. XmlTextWriter類：表示提供快速、非緩存、只進方法的編寫器，該方法生成包含 XML 數據的流或文件。
            WriteStartDocument()方法：編寫XML的聲明。
            WriteEndDocument()方法：關閉任何打開的元素或屬性並將編寫器重新設置為 Start 狀態。
            WriteStartElement(string localName)方法：創建一個節點的開始。
            WriteAttributeString(string localName, string value)方法：給節點添加屬性。
            WriteValue(value)方法：給節點賦值。
        50. 獲取圖書列表
        51. 1. /// <summary>
            2. /// 獲取圖書列表
            3. /// </summary>
            4. /// <returns></returns>
            5. public List<BookInfo> GetBookList()
            6. {
            7. List<BookInfo> bookList = new List<BookInfo>();
            8. BookInfo book1 = new BookInfo() {
            9. BookId = 1,
            10. Category = "CHILDREN",
            11. Title = "Harry Potter",
            12. Author = "J K. Rowling",
            13. PublishDate = new DateTime(2005,08,15),
            14. Price = 29.99
            15. };
            16. bookList.Add(book1);
            17. BookInfo book2 = new BookInfo()
            18. {
            19. BookId = 2,
            20. Category = "WEB",
            21. Title = "Learning XML",
            22. Author = "Erik T. Ray",
            23. PublishDate = new DateTime(2003,10,18),
            24. Price = 39.95
            25. };
            26. bookList.Add(book2);
            27. return bookList;
            28. }

            29. 圖書信息實體類

                [csharp] view plain copy
                1. /// <summary>
                2. /// 圖書信息實體類
                3. /// </summary>
                4. public class BookInfo
                5. {
                6. public int BookId { set; get; } //圖書ID
                7. public string Title { set; get; } //圖書名稱
                8. public string Category { set; get; } //圖書分類
                9. public string Author { set; get; } //圖書作者
                10. public DateTime PublishDate { set; get; } //出版時間
                11. public Double Price { set; get; } //銷售價格
                12. }

C#動態生成XML