使用dom4j写xml文件——源码

1 dom4j下载与配置

1.1 dom4j下载　

　　请移步下载链接

1.2 maven依赖

<dependency>
　　<groupId>org.dom4j</groupId>
　　<artifactId>com.springsource.org.dom4j</artifactId>
　　<version>2.1.1</version>
</dependency>

2 使用dom4j生成xml文档详细步骤

　　步骤1 创建一个Document对象的空白文档。

　　步骤2 向Document中添加根元素，返回的Element表示根元素，xml文档只有一个根元素。

　　步骤3 添加子元素。

　　步骤4 创建XmlWriter对象

　　步骤5 输出Document对象

3 实例

3.1 元素对象

package cnblogs.testCSV;

public class Person {
    private String id;
    private String name;
    private String sex;
    private int age;

    public Person() {
    }

    public Person(String id, String name, String sex, int age) {
        this.id = id;
        this.name = name;
        this.sex = sex;
        this.age = age;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}

3.2 写xml

package cnblogs.testXml;

import cnblogs.testCSV.Person;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.XMLWriter;

import java.io.FileOutputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;

public class FileXml {
    private static final String fileName = "D:\workspace\tmp\obj.xml";

    /**
     * 生成uuid
     *
     * @return 32位uuid
     */
    private static String getUUID32() {
        return UUID.randomUUID().toString().replace("-", "").toLowerCase();
    }

    /**
     * 构造数据
     *
     * @return 数据
     */
    private static List<Person> buildData() {
        List<Person> personList = new ArrayList<Person>(10);
        personList.add(new Person(getUUID32(), "张三", "female", 26));
        personList.add(new Person(getUUID32(), "李四", "man", 34));
        personList.add(new Person(getUUID32(), "王五", "female", 55));
        personList.add(new Person(getUUID32(), "一一", "female", 11));
        return personList;
    }

    public static void writeXml() {
        List<Person> personList = buildData();
        Document doc = DocumentHelper.createDocument();
        Element root = doc.addElement("personlist");
        for (Person emp : personList) {
            Element empEle = root.addElement("person");
            Element nameEle = empEle.addElement("id");
            nameEle.addText(emp.getId());
            Element ageEle = empEle.addElement("name");
            ageEle.addText(emp.getName());
            Element genderEle = empEle.addElement("sex");
            genderEle.addText(emp.getSex());
            Element salEle = empEle.addElement("age");
            salEle.addText(emp.getAge() + "");
            empEle.addAttribute("id", emp.getId() + ""); //向当前元素中添加指定名字以及对应值的属性
        }
        try {
            XMLWriter writer = new XMLWriter(OutputFormat.createPrettyPrint());
            FileOutputStream fos = new FileOutputStream(fileName);
            writer.setOutputStream(fos);
            writer.write(doc);
            writer.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * @param args
     */
    public static void main(String[] args) throws Exception {
        writeXml();
    }
}

3.3 输出结果

---

 　　如果您觉得阅读本文对您有帮助，请点一下“推荐”按钮，您的“推荐”将是我最大的写作动力！