百度资源搜索平台：https://ziyuan.baidu.com/dashboard

代码：

import com.google.common.collect.Lists;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.Arrays;
import java.util.List;

/**
 * @Author FengHao
 * @Date 2023/3/2
 * @Description: 推送文章到百度搜索
 **/
public class BaiduPushUtils {

    public static void main(String[] args) {
        List<String> parameters = Lists.newArrayList("https://www.jbritian.com/article/61");
        String resp = pushUrl(parameters);
        System.err.println(resp);
    }

    public static String pushUrl(String[] urls) {
        return pushUrl(Arrays.asList(urls));
    }

    /**
     * 百度链接实时推送
     */
    public static String pushUrl(List<String> parameters) {
        String url = "http://data.zz.baidu.com/urls?site=https://www.jbritian.com&token=aPGHofTZRw8iILsL";
        if (null == parameters || parameters.size() == 0) {
            return null;
        }
        StringBuilder result = new StringBuilder();
        PrintWriter out = null;
        BufferedReader in = null;
        try {
            //建立URL之间的连接
            URLConnection conn = new URL(url).openConnection();
            //设置通用的请求属性
            conn.setRequestProperty("Host", "data.zz.baidu.com");
            conn.setRequestProperty("User-Agent", "curl/7.12.1");
            conn.setRequestProperty("Content-Length", "83");
            conn.setRequestProperty("Content-Type", "text/plain");
            //发送POST请求必须设置如下两行
            conn.setDoInput(true);
            conn.setDoOutput(true);
            //获取conn对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            //发送请求参数
            StringBuilder param = new StringBuilder();
            for (String s : parameters) {
                param.append(s).append("\n");
            }
            out.print(param.toString().trim());
            //进行输出流的缓冲
            out.flush();
            //通过BufferedReader输入流来读取Url的响应
            in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
        } catch (Exception e) {
            System.out.println("发送post请求出现异常！" + e);
            e.printStackTrace();
        } finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result.toString();
    }
}