в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

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2010-05-31T14:47:45Z

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== JAXBContext: createMarshaller() throws JAXBException ==



<source lang="java">

import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.annotation.XmlAttribute;
import javax.xml.bind.annotation.XmlRootElement;
@XmlRootElement
public class Weird {

private String value;

@XmlAttribute(name="value")
private String svalue;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
public static void main(String[] args) throws JAXBException {
Weird w = new Weird();
w.value="foo";
w.svalue="bar";
JAXBContext context = JAXBContext.newInstance(Weird.class);
context.createMarshaller().marshal(w, System.out);
}
}

</source>



== JAXBContext: createUnmarshaller() ==



<source lang="java">

import generated.Item;
import java.io.File;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBElement;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Unmarshaller;
public class UnmarshallingDemo {
public static void main (String [] args) {
try {
JAXBContext jc = JAXBContext.newInstance ("generated");
Unmarshaller u = jc.createUnmarshaller ();
File f = new File ("item.xml");
JAXBElement element = (JAXBElement) u.unmarshal (f);
Item item = (Item) element.getValue ();
System.out.println (item.getCode ());
System.out.println (item.getName ());
System.out.println (item.getPrice ());
} catch (JAXBException e) {
e.printStackTrace ();
}
}
}

<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="item" type="Item"/>
<xsd:complexType name="Item">
<xsd:sequence>
<xsd:element name="code" type="xsd:string"/>
<xsd:element name="name" type="xsd:string"/>
<xsd:element name="price" type="xsd:double"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>

</source>



== JAXBContext.newInstance(Class... classesToBeBound) ==



<source lang="java">

import java.io.FileOutputStream;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.annotation.XmlRootElement;
public class JavaToXMLDemo {
public static void main(String[] args) throws Exception {
JAXBContext context = JAXBContext.newInstance(Employee.class);
Marshaller m = context.createMarshaller();
m.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
Employee object = new Employee();
object.setCode("CA");
object.setName("Cath");
object.setSalary(300);
m.marshal(object, System.out);
}
}
@XmlRootElement
class Employee {
private String code;
private String name;
private int salary;
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getSalary() {
return salary;
}
public void setSalary(int population) {
this.salary = population;
}
}
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<employee>
<code>CA</code>
<name>Cath</name>
<salary>300</salary>
</employee>

</source>

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в 17:43, 31 мая 2010

Admin: 1 версия