如何在JAVA中读取文件中特定userid的倒数第二个条目

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class ReadFileExample {
    public static void main(String[] args) {
        String filePath = "path/to/your/file.txt"; // 文件路径
        String targetUserId = "your_target_user_id"; // 目标userid

        try (BufferedReader br = new BufferedReader(new FileReader(filePath))) {
            String line;
            String secondLastEntry = null;

            while ((line = br.readLine()) != null) {
                // 解析每行数据，假设每行数据格式为：userid,entry
                String[] parts = line.split(",");
                String userid = parts[0];
                String entry = parts[1];

                if (userid.equals(targetUserId)) {
                    secondLastEntry = entry;
                }
            }

            if (secondLastEntry != null) {
                System.out.println("倒数第二个条目为：" + secondLastEntry);
            } else {
                System.out.println("未找到符合条件的条目");
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}