java - 将对象存储到HashMap中

我有一个XML，可以通过以下方式使用JAXB将其转换为Java对象：

package IRCurves;

import java.io.File;
import java.util.HashMap;
import java.util.List;

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;

public class XmlToObject {
    public static void main(String[] args) {
        try {
            File file = new File("InterestRates_JPY_20160426.xml");
            JAXBContext jaxbContext = JAXBContext.newInstance(InterestRateCurve.class);

            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            InterestRateCurve ir= (InterestRateCurve) jaxbUnmarshaller.unmarshal(file);

            System.out.println(ir.getEffectiveasof()+" "+ir.getCurrency()+" "+ir.getBaddayconvention());
            System.out.println("Deposits:");
            List<Deposits> list=ir.getDeposits();
            for(Deposits ans:list) {
                System.out.println(ans.getDaycountconvention()+" "+ans.getSnaptime()+" "+ans.getSpotdate());
                System.out.println("Calenders:");
                List<Calenders> list1=ans.getCalenders();
                for(Calenders c:list1)
                    System.out.println(c.getCalender());
                System.out.println("Curvepoint:");
                List<Curvepoint> list2=ans.getCurvepoint();
                for(Curvepoint curve:list2)
                    System.out.println(curve.getTenor()+" "+curve.getMaturitydate()+" "+curve.getParrate());
            }
            System.out.println("Swaps:");
            List<Swaps> list3=ir.getSwaps();
            for(Swaps swap:list3) {
                System.out.println(swap.getFixeddaycountconvention()+" "+swap.getFloatingdaycountconvention()+" "+swap.getFixedpaymentfrequency()+" "+swap.getFloatingpaymentfrequency()+" "+swap.getSnaptime()+" "+swap.getSpotdate());
            /*System.out.println("Calenders:");
            List<Calenders> list1=swap.getCalenders();
            for(Calenders c:list1)
                System.out.println(c.getCalender());*/
                System.out.println("Curvepoint:");
                List<Curvepoint> list2=swap.getCurvepoint();
                for(Curvepoint curve:list2)
                    System.out.println(curve.getTenor()+" "+curve.getMaturitydate()+" "+curve.getParrate());
            }
        } catch (JAXBException e) {
            e.printStackTrace();
        }
    }
}

我想将其存储到HashMap<"Deposits_1M", 2016-06-29 -0.00029)形式的哈希映射中，其中1M是我们通过curve.getTenor()获得的值，而2016-06-29是我们通过curve.getMaturitydate()和-.00029获得的值之一我们可以通过curve.getParrate()获得。因此，基本上，我希望我们从for(Curvepoint curve:list2)的每次迭代获得的值与字符串getTenor()一起作为键，并且从"Deposits"和curve.getMaturitydate(的值作为键。一个哈希映射条目的值。

我怎么做？

最佳答案

Java集合地图（包括HashMap）是参数化的，因此您需要在声明中包括键和值类型：

Map<String,String> resultsMap = new HashMap<>();

然后使用Map.put创建一个条目，因此在您的情况下，我认为这是：

resultsMap.put(curve.getTenor(), curve.getMaturitydate()+" "+curve.getParrate())