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Unmarshalling XML using JAXB

I examined almost all issues related to this topic here. But he could not find the right solution.

My problem is this:

I created a simple program for an unmarshall xml file for which I had xsd. I was able to do this successfully. But if I get xml without xsd, how can I get my attributes from this if xml looks something like this:

<items>
  <item>
    <code>12000</code>
    <name>Samsung  620</name>
    <price>9999</price>
  </item>
  <item>
    <code>15000</code>
    <name>NOKIA</name>
    <price>19999</price>
  </item>
  <item>
    <code>18000</code>
    <name>HTC 620</name>
    <price>29999</price>
  </item>
</items>

Here I do not have xsd to generate my classes. How can I continue? Please help me.

thank

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2 answers

The following is one way to map your use case to JAXB (JSR-222) :

Items

@XmlRootElement. @XmlRootElement JAXB, , items, @XmlRootElement(name="foo").

package forum11152046;

import java.util.List;
import javax.xml.bind.annotation.*;

@XmlRootElement
public class Items {

    private List<Item> items;

    @XmlElement(name="item")
    public List<Item> getItems() {
        return items;
    }

    public void setItems(List<Item> items) {
        this.items = items;
    }

}

Item

, XML. , , . , , ​​ @XmlElement, . @XmlElement items items.

package forum11152046;

public class Item {

    private int code;
    private String name;
    private int price;

    public int getCode() {
        return code;
    }

    public void setCode(int code) {
        this.code = code;
    }

    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;
    }

}

Demo

package forum11152046;

import java.io.File;
import javax.xml.bind.*;

public class Demo {

    public static void main(String[] args) throws Exception {
        JAXBContext jc = JAXBContext.newInstance(Items.class);

        Unmarshaller unmarshaller = jc.createUnmarshaller();
        File xml = new File("src/forum11152046/input.xml");
        Items items = (Items) unmarshaller.unmarshal(xml);

        Marshaller marshaller = jc.createMarshaller();
        marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        marshaller.marshal(items, System.out);
    }

}

Input.xml/

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<items>
    <item>
        <code>12000</code>
        <name>Samsung  620</name>
        <price>9999</price>
    </item>
    <item>
        <code>15000</code>
        <name>NOKIA</name>
        <price>19999</price>
    </item>
    <item>
        <code>18000</code>
        <name>HTC 620</name>
        <price>29999</price>
    </item>
</items>
+5

JAXB, XML Schema Document XML ( , , , ) POJO JAXB, . , . , .

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