使用Apache Commons CSV从带有标头的HashMaps列表中写入CSV

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-csv</artifactId>
    <version>1.8</version>
</dependency>

List<Map<String, String>> dataList = new ArrayList<>();

Map<String, String> row1 = new HashMap<>();
row1.put("Name", "John");
row1.put("Age", "25");
row1.put("City", "New York");
dataList.add(row1);

Map<String, String> row2 = new HashMap<>();
row2.put("Name", "Emily");
row2.put("Age", "30");
row2.put("City", "London");
dataList.add(row2);

import org.apache.commons.csv.CSVFormat;
import org.apache.commons.csv.CSVPrinter;

import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class CsvWriterExample {

    public static void main(String[] args) {
        List<Map<String, String>> dataList = new ArrayList<>();

        Map<String, String> row1 = new HashMap<>();
        row1.put("Name", "John");
        row1.put("Age", "25");
        row1.put("City", "New York");
        dataList.add(row1);

        Map<String, String> row2 = new HashMap<>();
        row2.put("Name", "Emily");
        row2.put("Age", "30");
        row2.put("City", "London");
        dataList.add(row2);

        String csvFilePath = "data.csv";

        try (FileWriter fileWriter = new FileWriter(csvFilePath);
             CSVPrinter csvPrinter = new CSVPrinter(fileWriter, CSVFormat.DEFAULT.withHeader("Name", "Age", "City"))) {

            for (Map<String, String> dataMap : dataList) {
                csvPrinter.printRecord(dataMap.get("Name"), dataMap.get("Age"), dataMap.get("City"));
            }

            csvPrinter.flush();

            System.out.println("CSV file successfully written!");

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}