File size: 2,130 Bytes
08aee07 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | package cn.itcast.xml.jsoup;
import cn.wanghaomiao.xpath.exception.XpathSyntaxErrorException;
import cn.wanghaomiao.xpath.model.JXDocument;
import cn.wanghaomiao.xpath.model.JXNode;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import java.io.File;
import java.io.IOException;
import java.util.List;
/**
* 快速查询方式：2、XPath
*/
public class JsoupDemo6 {
public static void main(String[] args) throws IOException, XpathSyntaxErrorException {
/*
2. XPath：XPath即为XML路径语言，它是一种用来确定XML（标准通用标记语言的子集）文档中某部分位置的语言
* 使用Jsoup的Xpath需要额外导入jar包。
*/
//1、获取document对象
String path = JsoupDemo6.class.getClassLoader().getResource("student1.xml").getPath();
Document document = Jsoup.parse(new File(path), "utf-8");
//2、根据document对象，创建JXDocument对象
JXDocument jxDocument = new JXDocument(document);
//3、结合XPath语法查询 -- 查询所有student标签 //student
List<JXNode> jxNodes = jxDocument.selN("//student");
for (JXNode jxNode : jxNodes) {
System.out.println(jxNode);
}
System.out.println("=======================");
//4、查询所有student下的 name标签
List<JXNode> jxNodes2 = jxDocument.selN("//student/name");
for (JXNode jxNode : jxNodes2) {
System.out.println(jxNode);
}
System.out.println("=======================");
//5、查询student下的，带有id的name标签
List<JXNode> jxNodes3 = jxDocument.selN("//student/name[@id]");
for (JXNode jxNode : jxNodes3) {
System.out.println(jxNode);
}
System.out.println("=======================");
//6、查询student下的，id为1的name标签
List<JXNode> jxNodes4 = jxDocument.selN("//student/name[@id='1']");
for (JXNode jxNode : jxNodes4) {
System.out.println(jxNode);
}
System.out.println("=======================");
}
}
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