1.引两个包

        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>
        <dependency>
            <groupId>jaxen</groupId>
            <artifactId>jaxen</artifactId>
            <version>1.1-beta-11</version>
            <exclusions>
                <exclusion>
                    <groupId>xerces</groupId>
                    <artifactId>xercesImpl</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

2.xml文件

<?xml version="1.0" encoding="UTF-8"?>
<emps>
    <emp>
        <id>1</id>
        <name>张三</name>
        <age>26</age>
        <gender>男</gender>
        <salary>3000</salary>
    </emp>
    <emp>
        <id>2</id>
        <name>李四</name>
        <age>21</age>
        <gender>女</gender>
        <salary>2000</salary>
    </emp>
    <emp>
        <id>3</id>
        <name>王五</name>
        <age>28</age>
        <gender>女</gender>
        <salary>6500</salary>
    </emp>
    <emp>
        <id>4</id>
        <name>赵六</name>
        <age>28</age>
        <gender>男</gender>
        <salary>5500</salary>
    </emp>
    <emp>
        <id>5</id>
        <name>钱七</name>
        <age>53</age>
        <gender>男</gender>
        <salary>12000</salary>
    </emp>
</emps>

3.代码

public class XmlResolver {
    public static void main(String[] args) throws DocumentException {
        SAXReader saxReader = new SAXReader();
        Document document = saxReader.read(new File("D:\\workspace\\spingMVC\\src\\main\\java\\com\\chengh\\spingmvc\\test.xml"));
        List<Element> list = document.selectNodes("/emps/emp");
        List<User> userList = resolverUser(list);
        userList.forEach(System.out::println);
    }

    public static List<User> resolverUser(List<Element> list){
        List<User> userList = new ArrayList<>();
        for (Element e : list){
            User user = new User(e.selectSingleNode("id").getText(),
                    e.selectSingleNode("name").getText(),
                    Integer.parseInt(e.selectSingleNode("age").getText()),
                    e.selectSingleNode("gender").getText(),
                    Integer.parseInt(e.selectSingleNode("salary").getText()));
            userList.add(user);
        }
        return userList;
    }
}