如何使用java将两个具有相同标题列的csv文件合并为另一个csv文件

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

public void mergeCSVFiles(String inputFile1, String inputFile2, String outputFile) throws IOException {
    BufferedReader reader1 = new BufferedReader(new FileReader(inputFile1));
    BufferedReader reader2 = new BufferedReader(new FileReader(inputFile2));
    BufferedWriter writer = new BufferedWriter(new FileWriter(outputFile));
    
    // 读取第一个文件的标题行并写入输出文件
    String header1 = reader1.readLine();
    writer.write(header1);
    writer.newLine();
    
    // 读取第二个文件的标题行并写入输出文件
    String header2 = reader2.readLine();
    writer.write(header2);
    writer.newLine();
    
    // 读取第一个文件的数据行并写入输出文件
    String line1;
    while ((line1 = reader1.readLine()) != null) {
        writer.write(line1);
        writer.newLine();
    }
    
    // 读取第二个文件的数据行并写入输出文件
    String line2;
    while ((line2 = reader2.readLine()) != null) {
        writer.write(line2);
        writer.newLine();
    }
    
    writer.close();
    reader1.close();
    reader2.close();
}

public static void main(String[] args) {
    String inputFile1 = "file1.csv";
    String inputFile2 = "file2.csv";
    String outputFile = "merged.csv";
    
    try {
        mergeCSVFiles(inputFile1, inputFile2, outputFile);
        System.out.println("CSV files merged successfully!");
    } catch (IOException e) {
        e.printStackTrace();
    }
}