实现效果
使用dom4j,实现将一个books.xml,解析为book类的对象: 1、xml文档 2、book类的信息 3、转化后的情况
实现
1、导入dom4j的相关jar包,以及用于单元测试的相关jar包 2、xml文档的内容:
<?xml version="1.0" encoding="UTF-8"?>
<books>
<book sn="SN12341232">
<name>辟邪剑谱</name>
<price>9.9</price>
<author>班主任</author>
</book>
<book sn="SN12341231">
<name>葵花宝典</name>
<price>99.99</price>
<author>班长</author>
</book>
</books>
3、book类的情况:
package com.athanchang.pojo;
import java.math.BigDecimal;
public class book {
private String sn;
private String name;
private BigDecimal price;
private String author;
public book(String sn, String name, BigDecimal price, String author) {
this.sn = sn;
this.name = name;
this.price = price;
this.author = author;
}
public book() {
}
public String getSn() {
return sn;
}
public void setSn(String sn) {
this.sn = sn;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public BigDecimal getPrice() {
return price;
}
public void setPrice(BigDecimal price) {
this.price = price;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
@Override
public String toString() {
return "book{" +
"sn='" + sn + '\'' +
", name='" + name + '\'' +
", price=" + price +
", author='" + author + '\'' +
'}';
}
}
4、实现转换功能的代码
package com.athanchang.pojo;
import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;
import org.junit.Test;
import java.math.BigDecimal;
import java.util.List;
public class Dom4jTest {
@Test
public void test2() throws Exception {
SAXReader saxReader = new SAXReader();
Document document = saxReader.read("src/books.xml");
Element rootElement = document.getRootElement();
List<Element> books = rootElement.elements("book");
for (Element book:books ) {
Element nameElement = book.element("name");
String nameText = nameElement.getText();
String priceText = book.elementText("price");
String authorText = book.elementText("author");
String snValue = book.attributeValue("sn");
System.out.println(new book(snValue,nameText,new BigDecimal(priceText),authorText));
}
}
}
行百里者,半九十!
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