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通过C#动态生成图书信息XML文件
简介通过C#动态生成图书信息XML文件（Books.xml），文件如下： 复制代码 代码如下: Harry P</div>
<div class="news_infos"><div id="MyContent">通过C#动态生成图书信息XML文件（Books.xml），文件如下： <BR><U>复制代码</U> 代码如下: <BR><?xml version="1.0" encoding="iso-8859-1"?> <BR><bookstore> <br><br><book id="1" category="CHILDREN"> <BR><title>Harry Potter</title> <BR><author>J K. Rowling</author> <BR><publishDate>2005-08-15</publishDate> <BR><price>29.99</price> <BR></book> <br><br><book id="2" category="WEB"> <BR><title>Learning XML</title> <BR><author>Erik T. Ray</author> <BR><publishDate>2003-10-18</publishDate> <BR><price>39.95</price> <BR></book> <br><br></bookstore> <BR> <BR><STRONG>方法1：使用StringBuilder拼接XML</STRONG> <BR><U>复制代码</U> 代码如下: <BR>/// <summary> <BR>/// 创建图书信息XML <BR>/// </summary> <BR>public void CreateBookXML(string fileName) <BR>{ <BR>StringBuilder xmlResult = new StringBuilder("<?xml version=\"1.0\" encoding=\"utf-8\"?>"); <BR>List<BookInfo> bookList = GetBookList(); //获取图书列表 <BR>if (bookList != null && bookList.Count > 0) <BR>{ <BR>xmlResult.Append("<bookstore>"); <BR>foreach (BookInfo book in bookList) <BR>{ <BR>xmlResult.AppendFormat("<book id=\"{0}\" category=\"{1}\">", book.BookId, book.Category); <BR>xmlResult.AppendFormat("<title>{0}</title>", book.Title); <BR>xmlResult.AppendFormat("<author>{0}</author>", book.Author); <BR>xmlResult.AppendFormat("<publishDate>{0}</publishDate>", book.PublishDate.ToString("yyyy-MM-dd")); <BR>xmlResult.AppendFormat("<price>{0}</price>", book.Price); <BR>xmlResult.Append("</book>"); <BR>} <BR>xmlResult.Append("</bookstore>"); <BR>} <br><br>//写入文件 <BR>try <BR>{ <BR>//1.创建文件流 <BR>FileStream fileStream = new FileStream(fileName, FileMode.Create); <BR>//2.创建写入器 <BR>StreamWriter streamWriter = new StreamWriter(fileStream); <BR>//3.将内容写入文件 <BR>streamWriter.WriteLine(xmlResult); <BR>//4.关闭写入器 <BR>streamWriter.Close(); <BR>//5.关闭文件流 <BR>fileStream.Close(); <BR>} <BR>catch (Exception e) <BR>{ } <BR>} <BR> <BR><STRONG>方法2：使用XmlTextWriter类创建XML</STRONG> <BR><U>复制代码</U> 代码如下: <BR>/// <summary> <BR>/// 创建图书信息XML <BR>/// </summary> <BR>/// <param name="fileName"></param> <BR>public void CreateBookXML(string fileName) <BR>{ <BR>try <BR>{ <BR>FileStream fileStream = new FileStream(fileName, FileMode.Create); <BR>XmlTextWriter writer = new XmlTextWriter(fileStream, Encoding.UTF8); <BR>List<BookInfo> bookList = GetBookList(); //获取图书列表 <BR>if (bookList != null && bookList.Count > 0) <BR>{ <BR>writer.WriteStartDocument(); <BR>writer.WriteStartElement("bookstore"); //创建父节点 <BR>foreach (BookInfo book in bookList) <BR>{ <BR>writer.WriteStartElement("book"); //创建子节点 <BR>writer.WriteAttributeString("id", book.BookId.ToString()); //添加属性 <BR>writer.WriteAttributeString("category", book.Category); <BR>//图书名称节点 <BR>writer.WriteStartElement("title"); <BR>writer.WriteValue(book.Title); //节点赋值 <BR>writer.WriteEndElement(); <BR>//图书作者节点 <BR>writer.WriteStartElement("author"); <BR>writer.WriteValue(book.Author); <BR>writer.WriteEndElement(); <BR>//出版时间节点 <BR>writer.WriteStartElement("publishDate"); <BR>writer.WriteValue(book.PublishDate.ToString("yyyy-MM-dd")); <BR>writer.WriteEndElement(); <BR>//销售价格节点 <BR>writer.WriteStartElement("price"); <BR>writer.WriteValue(book.Price); <BR>writer.WriteEndElement(); <br><br>writer.WriteEndElement(); //子节点结束 <BR>} <BR>writer.WriteEndElement(); //父节点结束 <BR>} <BR>writer.WriteEndDocument(); <BR>writer.Close(); <BR>fileStream.Close(); <BR>} <BR>catch (Exception e) <BR>{ } <BR>} <BR> <BR>XmlTextWriter类：表示提供快速、非缓存、只进方法的编写器，该方法生成包含 XML 数据的流或文件。 <BR>WriteStartDocument()方法：编写XML的声明。 <BR>WriteEndDocument()方法：关闭任何打开的元素或属性并将编写器重新设置为 Start 状态。 <BR>WriteStartElement(string localName)方法：创建一个节点的开始。 <BR>WriteAttributeString(string localName, string value)方法：给节点添加属性。 <BR>WriteValue(value)方法：给节点赋值。 <br><br>3、其他代码 <br><br>3.1 获取图书列表 <BR><U>复制代码</U> 代码如下: <BR>/// <summary> <BR>/// 获取图书列表 <BR>/// </summary> <BR>/// <returns></returns> <BR>public List<BookInfo> GetBookList() <BR>{ <BR>List<BookInfo> bookList = new List<BookInfo>(); <BR>BookInfo book1 = new BookInfo() { <BR>BookId = 1, <BR>Category = "CHILDREN", <BR>Title = "Harry Potter", <BR>Author = "J K. Rowling", <BR>PublishDate = new DateTime(2005,08,15), <BR>Price = 29.99 <BR>}; <BR>bookList.Add(book1); <BR>BookInfo book2 = new BookInfo() <BR>{ <BR>BookId = 2, <BR>Category = "WEB", <BR>Title = "Learning XML", <BR>Author = "Erik T. Ray", <BR>PublishDate = new DateTime(2003,10,18), <BR>Price = 39.95 <BR>}; <BR>bookList.Add(book2); <BR>return bookList; <BR>} <BR> <BR>3.2 图书信息实体类 <BR><U>复制代码</U> 代码如下: <BR>/// <summary> <BR>/// 图书信息实体类 <BR>/// </summary> <BR>public class BookInfo <BR>{ <BR>public int BookId { set; get; } //图书ID <BR>public string Title { set; get; } //图书名称 <BR>public string Category { set; get; } //图书分类 <BR>public string Author { set; get; } //图书作者 <BR>public DateTime PublishDate { set; get; } //出版时间 <BR>public Double Price { set; get; } //销售价格 <BR>} <BR></div>
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