拼多多海外物流Java代碼示例：

import java.util.HashMap;
import java.util.Map;

public class ExportOrder {
    private String orderId;
    private Map<String, String> exportData;

    public ExportOrder(String orderId) {
        this.orderId = orderId;
        exportData = new HashMap<>();
    }

    public void addExportData(String key, String value) {
        exportData.put(key, value);
    }

    public String getExportData() {
        return exportData.toString();
    }
}

public class ExportOrderService {
    private Map<String, ExportOrder> exportOrders;

    public ExportOrderService() {
        exportOrders = new HashMap<>();
    }

    public void addExportOrder(ExportOrder exportOrder) {
        exportOrders.put(exportOrder.getOrderId(), exportOrder);
    }

    public void exportOrdersToExcel(String fileName) {
        // 將導(dǎo)出訂單數(shù)據(jù)寫入Excel文件的代碼實現(xiàn)
    }
}

public class Main {
    public static void main(String[] args) {
        ExportOrderService exportOrderService = new ExportOrderService();
        ExportOrder exportOrder = new ExportOrder("123456");
        exportOrder.addExportData("product", "iPhone 12");
        exportOrder.addExportData("quantity", "1");
        exportOrderService.addExportOrder(exportOrder);
        exportOrderService.exportOrdersToExcel("export_orders.xlsx");
    }
}

這個示例中，我們定義了一個ExportOrder類來表示一個出口訂單，包含訂單ID和導(dǎo)出數(shù)據(jù)。ExportOrderService類用于管理出口訂單，包括添加訂單和導(dǎo)出訂單到Excel文件。在main方法中，我們創(chuàng)建了一個ExportOrderService實例和一個ExportOrder實例，然后添加了訂單數(shù)據(jù)，最后將訂單數(shù)據(jù)導(dǎo)出到Excel文件。