使用Java快速将Web中表格转换成Excel的方法

<project xmlns="http://maven.apache.org/POM/4.0.0"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
	<modelVersion>4.0.0</modelVersion>
	<groupId>com.yelang</groupId>
	<artifactId>jsoupdemo</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<dependencies>
		<dependency>
			<groupId>org.jsoup</groupId>
			<artifactId>jsoup</artifactId>
			<version>1.11.3</version>
		</dependency>
		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>easyexcel</artifactId>
			<version>3.0.5</version>
		</dependency>
	</dependencies>
</project>

package com.yelang.entity;
 
import java.io.Serializable;
import com.alibaba.excel.annotation.ExcelProperty;
public class CountyBase implements Serializable {
	private static final long serialVersionUID = -1760099890427975758L;
 
	@ExcelProperty(value= {"序号"},index = 1)
	private Integer index;
 
	@ExcelProperty(value= {"县级地区"},index = 2)
	private String name;
 
	@ExcelProperty(value= {"所属省"},index = 3)
	private String province;
 
	public Integer getIndex() {
		return index;
	}
 
	public void setIndex(Integer index) {
		this.index = index;
	}
 
	public String getName() {
		return name;
	}
 
	public void setName(String name) {
		this.name = name;
	}
 
	public String getProvince() {
		return province;
	}
 
	public void setProvince(String province) {
		this.province = province;
	}
 
	public CountyBase(Integer index, String name, String province) {
		super();
		this.index = index;
		this.name = name;
		this.province = province;
	}
 
	public CountyBase() {
		super();
	}
 
}

package com.yelang.entity;
 
import java.io.Serializable;
import com.alibaba.excel.annotation.ExcelProperty;
public class Gdp extends CountyBase implements Serializable {
 
	private static final long serialVersionUID = 5265057372502768147L;
 
	@ExcelProperty(value= {"GDP（亿元）"},index = 4)
	private String gdp;
	
	public String getGdp() {
		return gdp;
	}
 
	public void setGdp(String gdp) {
		this.gdp = gdp;
	}
 
	public Gdp(Integer index, String name, String province, String gdp) {
		super(index,name,province);
		this.gdp = gdp;
	}
 
	public Gdp(Integer index, String name, String province) {
		super(index, name, province);
	}
 
}

package com.yelang.entity;
 
import java.io.Serializable;
 
import com.alibaba.excel.annotation.ExcelProperty;
 
public class Gpbr extends CountyBase implements Serializable {
 
	private static final long serialVersionUID = 8612514686737317620L;
 
	@ExcelProperty(value= {"一般公共预算收入（亿元）"},index = 4)
	private String gpbr;// General public budget revenue
 
	public String getGpbr() {
		return gpbr;
	}
 
	public void setGpbr(String gpbr) {
		this.gpbr = gpbr;
	}
 
	public Gpbr(Integer index, String name, String province, String gpbr) {
		super(index, name, province);
		this.gpbr = gpbr;
	}
 
	public Gpbr(Integer index, String name, String province) {
		super(index, name, province);
	}
}

static void grabGdp() {
		String target = "https://www.maigoo.com/news/665462.html";
		try {
            Document doc = Jsoup.connect(target)
                    .ignoreContentType(true)
                    .userAgent(FetchCsdnCookie.ua[1])
                    .timeout(300000)
                    .header("referer","https://www.maigoo.com")
                    .get();
            Elements elements = doc.select("#t_container > div:eq(3) table tr");
            List<Gdp> list = new ArrayList<Gdp>();
            for(int i = 1;i<elements.size();i++) {
            	Element tr = elements.get(i);//获取表头
            	Elements tds = tr.select("td");
            	Integer index = Integer.valueOf(tds.get(0).text());
            	String name = tds.get(1).text();
            	String province = tds.get(2).text();
            	String gdp = tds.get(3).text();
            	Gdp county = new Gdp(index, name, province, gdp);
            	list.add(county);
            }
            String fileName = "E:/gdptest/2023全国百强县GDP排行榜 .xlsx";
            EasyExcel.write(fileName, Gdp.class).sheet("GDP百强榜").doWrite(list);
            System.out.println("完成...");
		} catch (Exception e) {
			System.out.println(e.getMessage());
			System.out.println("发生异常，继续下一轮循环");
		}
	}

Elements elements = doc.select("#t_container > div:eq(3) table tr");