Hello i am new to xml reading/writing and am not sure if i doing reading correctly.I am using Java core with jaxb-api version 2.1.What i want to do is basically create product objects and write them to a different file based on this xml.the problem is that i am not sure how to mark the fields do i need to create only an Order class and add the products as wrappers for the fields that are inside or do i need to create a product class aswell? it is confusing for me since product is inside order but it acts like a wrapper for the other tags inside. I am finding several tutorials online but none of them handle a List of objects, most of the examples contain simple String fields or arrays of Strings.So i am not sure how to handle this issue.
Any help would be greatly appreciated. Thank you very much
<orders>
<order created='2012-07-12T15:29:33.000' ID='2343'>
<product>
<description>Sony 54.6" (Diag) Xbr Hx929 Internet Tv</description>
<gtin>00027242816657</gtin>
<price currency="USD">2999.99</price>
<supplier>Sony</supplier>
</product>
<product>
<description>Apple iPad 2 with Wi-Fi 16GB - iOS 5 - Black</description>
<gtin>00885909464517</gtin>
<price currency="USD">399.0</price>
<supplier>Apple</supplier>
</product>
<product>
<description>Sony NWZ-E464 8GB E Series Walkman Video MP3 Player Blue</description>
<gtin>00027242831438</gtin>
<price currency="USD">91.99</price>
<supplier>Sony</supplier>
</product>
</order>
<order created='2012-07-13T16:02:22.000' ID='2344'>
<product>
<description>Apple MacBook Air A 11.6" Mac OS X v10.7 Lion MacBook</description>
<gtin>00885909464043</gtin>
<price currency="USD">1149.0</price>
<supplier>Apple</supplier>
</product>
<product>
<description>Panasonic TC-L47E50 47" Smart TV Viera E50 Series LED HDTV</description>
<gtin>00885170076471</gtin>
<price currency="USD">999.99</price>
<supplier>Panasonic</supplier>
</product>
</order>
</orders>
@XmlRootElement
public class Order {
private LocalDateTime created;
private List<Product> products;
public LocalDateTime getCreated() {
return created;
}
@XmlElement
public void setCreated(LocalDateTime created) {
this.created = created;
}
public List<Product> getProducts() {
return products;
}
@XmlElementWrapper(name="product")
@XmlElement
public void setProducts(List<Product> products) {
this.products = products;
}
}
There are several issues with your code. (In order not to spoil your learning experience, I will only give some instructions, but no complete code.)
<orders>...</orders> you need another class (let's call it Orders).
@XmlRootElement.<orders> element contains several <order> elements. Therefore you need to add a member List<Order> orders. Annotate it with @XmlElement(name="order").Order class:
@XmlRootElement annotation here, because <order> is not the root element.products with only @XmlElement(name="product") (as already written by @PiotrP.Karwasz in his comment).created member with @XmlAttribute instead of @XmlElement. This is because you have an XML attribute created="something", not an XML element <created>something</created>.LocalDateTime. So you may need to change this to Date.Collected from the Internet
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