xstream xml转化成java对象

Posted 2023-04-21

xml to java对象：
static MessageDatabase load(String persistFile)
MessageDatabase messageDatabase = null;
Reader reader = null;

try
reader = new FileReader(persistFile);
XStream xstream = new XStream(new JDomDriver());
messageDatabase = (MessageDatabase) xstream.fromXML(reader);

// for upgrade
if (messageDatabase != null)
messageDatabase.upgrade();


catch (FileNotFoundException ex)
;

finally
if (reader != null)
try
reader.close();

catch (IOException ex)
log.warn("Exception when closing reader", ex);




if (messageDatabase == null)
messageDatabase = new MessageDatabase();
messageDatabase.setMessages(new LinkedList());
messageDatabase.setStickyMessages(new LinkedList());


messageDatabase.persistFile = persistFile;

return messageDatabase;
参考技术A http://chen-rojer-gmail-com.iteye.com/blog/1435254/

XStream将XML转换为JAVA对象快速指南

XStream是一套简单实用的JAVA类库，它用于序列化对象和XML对象之间互相转换。由于XStream配置简单，灵活易用，因此在XML对象和JAVA对象序列化市场上有很大的空间。本文并不会对XStream的特性做详细介绍，只是以实例的方式演示XStream是多么的容易上手。

1.XStream官网下载最新版的Jar包，上传到工程路径。

2.假设我们要将如下的XML对象转换为JAVA对象。

<?xml version="1.0" encoding="UTF-8"?>
<order>
    <orderId>201612150001</orderId>
    <orderPrice>40.23</orderPrice>
    <createDate>20161215180000</createDate>
    <product>
        <productName>lvrouhuoshao</productName>
        <productPrice>23</productPrice>
    </product>
    <product>
        <productName>鸡蛋灌饼</productName>
        <productPrice>17.23</productPrice>
    </product>
</order>

3.根据XML结构构建订单对象和产品对象

HiOrder.java

package com.favccxx.favsoft.pojo;
import java.util.List;
public class HiOrder {
    private String orderId;
    private double orderPrice;
    private List<HiProduct> product;
    private String createDate;
    public String getOrderId() {
        return orderId;
    }
    public void setOrderId(String orderId) {
        this.orderId = orderId;
    }
    public double getOrderPrice() {
        return orderPrice;
    }
    public void setOrderPrice(double orderPrice) {
        this.orderPrice = orderPrice;
    }
    public List<HiProduct> getProduct() {
        return product;
    }
    public void setProduct(List<HiProduct> product) {
        this.product = product;
    }
    public String getCreateDate() {
        return createDate;
    }
    public void setCreateDate(String createDate) {
        this.createDate = createDate;
    }
}

Product.java

package com.favccxx.favsoft.pojo;
public class HiProduct {
    private String productName;
    private double productPrice;
    public String getProductName() {
        return productName;
    }
    public void setProductName(String productName) {
        this.productName = productName;
    }
    public double getProductPrice() {
        return productPrice;
    }
    public void setProductPrice(double productPrice) {
        this.productPrice = productPrice;
    }
}

4.测试代码

package com.favccxx.favsoft.main;
import com.favccxx.favsoft.pojo.HiOrder;
import com.favccxx.favsoft.pojo.HiProduct;
import com.thoughtworks.xstream.XStream;
public class MainOrder {
    public static void main(String[] args) {
        String xmlbody = "<?xml version=‘1.0‘ encoding=‘UTF-8‘?><order><orderId>201612150001</orderId><orderPrice>40.23</orderPrice><createDate>2016-12-12 15:16:04</createDate><product><productName>lvrouhuoshao</productName><productPrice>23</productPrice></product><product><productName>鸡蛋灌饼</productName><productPrice>17.23</productPrice></product></order>";
        XStream xStream = new XStream();
        xStream.alias("order", HiOrder.class);
        xStream.alias("product", HiProduct.class);
        xStream.addImplicitCollection(HiOrder.class, "product");
        HiOrder order = (HiOrder) xStream.fromXML(xmlbody);
        System.out.println(order.getOrderId());
    }
}

5.运行上面测试类，输出订单的详细信息。只需简单的几步就可以将XML对象转换为JAVA对象，你看到这，是不是心痒的想要上手试一试呢？

本文出自 “这个人的IT世界” 博客，请务必保留此出处http://favccxx.blog.51cto.com/2890523/1884453