Java解析XML文件
1 <?xml version=“1.0” encoding=“UTF-8”?> 2 <bookstore> 3 <book id=“1”> 4 <name>冰与火之歌</name> 5 <author>乔治马丁</author> 6 <year>2014</year> 7 <price>89</price> 8 </book> 9 <book id=“2”> 10 <name>安徒生童话</name> 11 <author>安徒生</author> 12 <year>2004</year> 13 <price>77</price> 14 </book> 15 <book id=“3”> 16 <name>think think think</name> 17 <author>aaa</author> 18 <year>1997</year> 19 <price>100</price> 20 </book> 21 </bookstore>
1 public class Book { 2 3 /** 4 * @author lune 5 */ 6 7 private int id; 8 private String name; 9 private String author; 10 private int year; 11 private double price; 12 13 /** 14 * @return the id 15 */ 16 public int getId() { 17 return id; 18 } 19 /** 20 * @param id the id to set 21 */ 22 public void setId(int id) { 23 this.id = id; 24 } 25 /** 26 * @return the name 27 */ 28 public String getName() { 29 return name; 30 } 31 /** 32 * @param name the name to set 33 */ 34 public void setName(String name) { 35 this.name = name; 36 } 37 /** 38 * @return the author 39 */ 40 public String getAuthor() { 41 return author; 42 } 43 /** 44 * @param author the author to set 45 */ 46 public void setAuthor(String author) { 47 this.author = author; 48 } 49 /** 50 * @return the year 51 */ 52 public int getYear() { 53 return year; 54 } 55 /** 56 * @param year the year to set 57 */ 58 public void setYear(int year) { 59 this.year = year; 60 } 61 /** 62 * @return the price 63 */ 64 public double getPrice() { 65 return price; 66 } 67 /** 68 * @param price the price to set 69 */ 70 public void setPrice(double price) { 71 this.price = price; 72 } 73 74 @Override 75 public String toString() { 76 return “Book [id=” + id + “, name=” + name + “, author=” + author + “, year=” + year + “, price=” + price + “]”; 77 } 78 79 }
1.JDOM方式解析XML
1 import java.io.FileInputStream; 2 import java.io.FileNotFoundException; 3 import java.io.IOException; 4 import java.util.ArrayList; 5 import java.util.List; 6 7 import org.jdom2.JDOMException; 8 import org.jdom2.input.SAXBuilder; 9 10 import com.lune.bean.Book; 11 12 import org.jdom2.*; 13 14 /** 15 * 用JDOM方式读取xml文件 16 * @author lune 17 */ 18 public class ReadXMLByJDom { 19 20 private List<Book> books = null; 21 private Book book = null; 22 23 public List<Book> getBooks(String fileName){ 24 SAXBuilder saxBuilder = new SAXBuilder(); 25 try { 26 Document document = saxBuilder.build(new FileInputStream(fileName)); 27 //获取根节点bookstore 28 Element rootElement = document.getRootElement(); 29 //获取根节点的子节点，返回子节点的数组 30 List<Element> bookList = rootElement.getChildren(); 31 books = new ArrayList<Book>(); 32 for(Element bookElement : bookList){ 33 book = new Book(); 34 //获取bookElement的属性 35 List<Attribute> bookAttributes = bookElement.getAttributes(); 36 for(Attribute attribute : bookAttributes){ 37 if(attribute.getName().equals(“id”)){ 38 String id = attribute.getValue(); //System.out.println(id); 39 book.setId(Integer.parseInt(id)); 40 } 41 } 42 //获取bookElement的子节点 43 List<Element> children = bookElement.getChildren(); 44 for(Element child : children){ 45 if(child.getName().equals(“name”)){ 46 String name = child.getValue();//System.out.println(name); 47 book.setName(name); 48 }else if(child.getName().equals(“author”)){ 49 String author = child.getValue(); 50 book.setAuthor(author);//System.out.println(author); 51 }else if(child.getName().equals(“year”)){ 52 String year = child.getValue(); 53 book.setYear(Integer.parseInt(year)); 54 }else if(child.getName().equals(“price”)){ 55 String price = child.getValue(); 56 book.setPrice(Double.parseDouble(price)); 57 } 58 59 } 60 61 books.add(book); 62 book = null; 63 64 } 65 66 } catch (FileNotFoundException e) { 67 68 e.printStackTrace(); 69 } catch (JDOMException e) { 70 71 e.printStackTrace(); 72 } catch (IOException e) { 73 74 e.printStackTrace(); 75 } 76 77 return books; 78 79 } 80 81 82 public static void main(String[] args) { 83 // TODO Auto-generated method stub 84 String fileName = ”src/res/books.xml”; 85 List<Book> books= new ReadXMLByJDom().getBooks(fileName); 86 for(Book book : books){ 87 System.out.println(book); 88 } 89 } 90 91 }
2.DOM4j方式解析XML
1 import java.io.File; 2 import java.util.ArrayList; 3 import java.util.Iterator; 4 import java.util.List; 5 6 import org.dom4j.Attribute; 7 import org.dom4j.Document; 8 import org.dom4j.DocumentException; 9 import org.dom4j.Element; 10 import org.dom4j.io.SAXReader; 11 12 import com.lune.bean.Book; 13 14 /** 15 * 用DOM4J方法读取xml文件 16 * @author lune 17 */ 18 public class ReadXMLByDom4j { 19 20 private List<Book> bookList = null; 21 private Book book = null; 22 23 public List<Book> getBooks(File file){ 24 25 SAXReader reader = new SAXReader(); 26 try { 27 Document document = reader.read(file); 28 Element bookstore = document.getRootElement(); 29 Iterator storeit = bookstore.elementIterator(); 30 31 bookList = new ArrayList<Book>(); 32 while(storeit.hasNext()){ 33 34 book = new Book(); 35 Element bookElement = (Element) storeit.next(); 36 //遍历bookElement的属性 37 List<Attribute> attributes = bookElement.attributes(); 38 for(Attribute attribute : attributes){ 39 if(attribute.getName().equals(“id”)){ 40 String id = attribute.getValue();//System.out.println(id); 41 book.setId(Integer.parseInt(id)); 42 } 43 } 44 45 Iterator bookit = bookElement.elementIterator(); 46 while(bookit.hasNext()){ 47 Element child = (Element) bookit.next(); 48 String nodeName = child.getName(); 49 if(nodeName.equals(“name”)){ 50 //System.out.println(child.getStringValue()); 51 String name = child.getStringValue(); 52 book.setName(name); 53 }else if(nodeName.equals(“author”)){ 54 String author = child.getStringValue(); 55 book.setAuthor(author); 56 }else if(nodeName.equals(“year”)){ 57 String year = child.getStringValue(); 58 book.setYear(Integer.parseInt(year)); 59 }else if(nodeName.equals(“price”)){ 60 String price = child.getStringValue(); 61 book.setPrice(Double.parseDouble(price)); 62 } 63 } 64 bookList.add(book); 65 book = null; 66 67 } 68 } catch (DocumentException e) { 69 70 e.printStackTrace(); 71 } 72 73 74 return bookList; 75 76 } 77 78 79 /** 80 * @param args 81 */ 82 public static void main(String[] args) { 83 // TODO Auto-generated method stub 84 File file = new File(“src/res/books.xml”); 85 List<Book> bookList = new ReadXMLByDom4j().getBooks(file); 86 for(Book book : bookList){ 87 System.out.println(book); 88 } 89 } 90 91 }
转载自：https://blog.csdn.net/zflovecf/article/details/78908788#
