JavaWeb / Fore_End /XML /src /cn /itcast /xml /jsoup /JsoupDemo5.java

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package cn.itcast.xml.jsoup;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;

import java.io.File;
import java.io.IOException;

/**
 * 快捷查询方式：1、选择器selector
 */
public class JsoupDemo5 {
    public static void main(String[] args) throws IOException {
        /*
			1. selector:选择器
				* 使用的方法：Elements	select(String cssQuery)
					* 语法：参考Selector类中定义的语法
         */
        //1、获取document对象
        String path = JsoupDemo5.class.getClassLoader().getResource("student1.xml").getPath();
        Document document = Jsoup.parse(new File(path), "utf-8");

        //2、查询name标签
        Elements names = document.select("name");
        System.out.println(names);
        System.out.println("====================");

        //3、查询id值为1的元素
        Elements id1 = document.select("#1");
        System.out.println(id1);
        System.out.println("====================");

        //4、获取student标签，并且其number为s001，获取其age子标签
        Elements student2 = document.select("student[number='s001'] age");//所有age子标签
        System.out.println(student2);
        System.out.println("====================");

        Elements student3 = document.select("student[number='s001'] > age");//一级age子标签
        System.out.println(student3);
        System.out.println("====================");
    }
}

	package cn.itcast.xml.jsoup;

	import org.jsoup.Jsoup;
	import org.jsoup.nodes.Document;
	import org.jsoup.select.Elements;

	import java.io.File;
	import java.io.IOException;

	/**
	* 快捷查询方式：1、选择器selector
	*/
	public class JsoupDemo5 {
	public static void main(String[] args) throws IOException {
	/*
	1. selector:选择器
	* 使用的方法：Elements select(String cssQuery)
	* 语法：参考Selector类中定义的语法
	*/
	//1、获取document对象
	String path = JsoupDemo5.class.getClassLoader().getResource("student1.xml").getPath();
	Document document = Jsoup.parse(new File(path), "utf-8");

	//2、查询name标签
	Elements names = document.select("name");
	System.out.println(names);
	System.out.println("====================");

	//3、查询id值为1的元素
	Elements id1 = document.select("#1");
	System.out.println(id1);
	System.out.println("====================");

	//4、获取student标签，并且其number为s001，获取其age子标签
	Elements student2 = document.select("student[number='s001'] age");//所有age子标签
	System.out.println(student2);
	System.out.println("====================");

	Elements student3 = document.select("student[number='s001'] > age");//一级age子标签
	System.out.println(student3);
	System.out.println("====================");
	}
	}