java读取xml指定标签的内容

package com.fenuang.sec;

import java.io.File;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;

import javax.print.Doc;

import org.dom4j.Document;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

import com.fenuang.demo4j.contest;

public class trueuse {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        try {
            // 实例化一个类用于添加xml文件
            List list = new ArrayList<>();

            SAXReader reader = new SAXReader();
            Document doc = reader.read(new File("./conf/test.xml"));
            // 读取指定标签
            Iterator eleit = doc.getRootElement().elementIterator("user");

            ArrayList newlist = new ArrayList(); // 创建新集合
            while (eleit.hasNext()) {

                Element ele = eleit.next();
                contest con = new contest();
                con.setId(ele.attributeValue("id"));
                con.setName(ele.elementText("name"));
                con.setEmail(ele.elementText("email"));
                con.setQq(ele.elementText("qq"));
                con.setWife(ele.elementText("wife"));
                list.add(con);

                Iterator it = list.iterator(); // 通过老集合获取迭代器
                while (it.hasNext()) { // 遍历老集合
                    Object obj = it.next(); // 得到老集合的元素
                    if (!newlist.contains(obj)) {
                        newlist.add(obj);
                    }
                }

            }

            System.out.println(list.get(0));
            // System.out.println(" =======");
            System.out.println(list.get(1));
            // System.out.println(" =======");
            System.out.println(list.get(2));

        } catch (

        Exception e) {
            e.printStackTrace();
        }

    }

}

下面是用于存储元素的类

package com.fenuang.demo4j;

import org.omg.Messaging.SyncScopeHelper;

public class contest {
    private String id;
    private String name;
    private String email;
    private String qq;
    private String wife;

    /**
     * @param id
     * @param name
     * @param email
     * @param qq
     * @param wife
     */
    public contest(String id, String name, String email, String qq, String wife) {
        super();
        this.id = id;
        this.name = name;
        this.email = email;
        this.qq = qq;
        this.wife = wife;
    }

    /**
     * @param id
     * @param name
     * @param email
     * @param qq
     * @param wife
     */
    public contest() {

    }

    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 getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getQq() {
        return qq;
    }

    public void setQq(String qq) {
        this.qq = qq;
    }

    public String getWife() {
        return wife;
    }

    public void setWife(String wife) {
        this.wife = wife;
    }

    @Override
    public String toString() {
        // TODO Auto-generated method stub
        return this.email + "--" + this.id + "--" + this.name + "--" + this.qq + "--" + this.wife+" ";


    }

}

下面是要被读取的xml文件

xml version="1.0" encoding="utf-8"?>

<contestList>
    <user id="001">
        <name>王五name>
        <email>2222222email>
        <qq>4fenuangqq>
        <wife>6fenuangwife>
    user>

    <user id="002">
        <name>李四name>
        <email>4444444email>
        <qq>4fenuangqq>
        <wife>6fenuangwife>
    user>


    <user id="003">
        <name>张三name>
        <email>2fenuangemail>
        <qq>333333qq>
        <wife>6fenuangwife>
    user>



contestList>

转载：https://blog.csdn.net/qq_34533413/article/details/52470842