如何在CSV文件中获取与我的bean变量名称匹配的标题名称？

Question

我正在尝试使用opencsv 4.6 api创建csv文件。我能够使用标题需要在csv文件中的顺序序列来创建csv。但是生成的标题名称是大写字符。我希望它类似于我提到的映射值。

output getting : 
"_ID","_NAME","_VISIBILITY","_TYPE","_PRICE"
"1","Tata","true","petrol","52642"
"2","Mercedes","false","diesel","57127"
"3","Skoda","true","petrol","9000"
"4","Volvo","true","petrol","29000"

output expected : 
"_id","_name","_visibility","_type","_price"
"1","Tata","true","petrol","52642"
"2","Mercedes","false","diesel","57127"
"3","Skoda","true","petrol","9000"
"4","Volvo","true","petrol","29000"

这是我用来创建csv的bean类。

import com.opencsv.bean.CsvBindByName;

public class Car {

    public static final String[] FIELDS_ORDER = { "_id", "_name", "_visibility", "_type", "_price" };

    @CsvBindByName(column = "_id" )
    private int id;
    @CsvBindByName(column = "_name")
    private String name;
    @CsvBindByName(column = "_price")
    private int price;
    @CsvBindByName(column = "_visibility")
    private boolean visibility;
    @CsvBindByName(column = "_type")
    private String type;

    public Car(int id, String name, int price, boolean visibility, String type) {
        this.id = id;
        this.name = name;
        this.price = price;
        this.visibility = visibility;
        this.type = type;
    }

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getPrice() {
        return price;
    }

    public void setPrice(int price) {
        this.price = price;
    }

    public boolean isVisibility() {
        return visibility;
    }

    public void setVisibility(boolean visibility) {
        this.visibility = visibility;
    }

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    @Override
    public String toString() {

        StringBuilder builder = new StringBuilder();
        builder.append("Car{id=").append(id).append(", name=").append(name).append(", price=").append(price)
                .append("}");

        return builder.toString();
    }
}

这是我正在创建的主要课程

import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;

import com.opencsv.bean.HeaderColumnNameMappingStrategy;
import com.opencsv.bean.StatefulBeanToCsv;
import com.opencsv.bean.StatefulBeanToCsvBuilder;
import com.opencsv.exceptions.CsvDataTypeMismatchException;
import com.opencsv.exceptions.CsvRequiredFieldEmptyException;

public class A {

    public static void main(String[] args)
            throws IOException, CsvDataTypeMismatchException, CsvRequiredFieldEmptyException {

        List<Car> cars = new ArrayList<>();
        cars.add(new Car(1, "Tata", 52642, true, "petrol"));
        cars.add(new Car(2, "Mercedes", 57127, false, "diesel"));
        cars.add(new Car(3, "Skoda", 9000, true, "petrol"));
        cars.add(new Car(4, "Volvo", 29000, true, "petrol"));



        Writer writer = new FileWriter("yourfile.csv");
        HeaderColumnNameMappingStrategy<Car> strategy = new HeaderColumnNameMappingStrategy<>();
        strategy.setType(Car.class);
        strategy.setColumnOrderOnWrite(new OrderedComparatorIgnoringCase(Car.FIELDS_ORDER));
        StatefulBeanToCsv<Car> beanToCsv = new StatefulBeanToCsvBuilder<Car>(writer)
                .withMappingStrategy(strategy).build();

        beanToCsv.write(cars);
        writer.close();
        System.out.println("Done");
    }

}

这是用于设置订单的代码，即我们要获取数据的顺序。

import java.util.ArrayList;
import java.util.Comparator;
import java.util.List;

public class OrderedComparatorIgnoringCase implements Comparator<String> {
    private List<String> predefinedOrder;

    public OrderedComparatorIgnoringCase(String[] predefinedOrder) {
        this.predefinedOrder = new ArrayList<>();
        for (String item : predefinedOrder) {
            this.predefinedOrder.add(item.toLowerCase());
        }
    }

    @Override
    public int compare(String o1, String o2) {
        return predefinedOrder.indexOf(o1.toLowerCase()) - predefinedOrder.indexOf(o2.toLowerCase());
    }

}