使用Jsoup進行html元素的解析
<!--Jsoup依賴 -->
<!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.11.3</version>
</dependency>
導入commons包方便進行文件以及字符串的解析
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.4</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
方便查找依賴:maven倉庫
代碼
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.io.File;
import java.net.URL;
/**
* jsoup解析html
*/
public class JsoupTest1 {
public static void main(String[] args) throws Exception {
// 解析url
Document doc = Jsoup.parse(new URL("http://www.itcast.cn"), 1000);
// 解析html
Jsoup.parse("test.html");
// 解析文件
Jsoup.parse(new File("test.html"), "utf8");
// 使用標籤選擇器,獲取內容
Element title = doc.getElementsByTag("title").first();
System.out.println(title.text());
// 通過id選擇器獲取內容
Element city_bi = doc.getElementById("city_bi");
System.out.println(city_bi.text());
// 通過class獲取
Element class_a = doc.getElementsByClass("class_a").first();
System.out.println(class_a.text());
// 通過屬性獲取
Elements adc = doc.getElementsByAttribute("adc");
Elements elementsByAttributeValue = doc.getElementsByAttributeValue("adc", "sh");
System.out.println(adc.text());
}
}