Reputation: 1377
I need to convert Java object into XML object and send it across to client browser from server.
And in client browser, i need to parse the obtained XML object using DOM/SAX or anything that suits and display it in UI.
Which one suits the above? Could any of them help me out in this?
Upvotes: 0
Views: 4726
Reputation: 6804
You can use the JAXB API for your problem. JAXB(Java Architecture for XML Binding) uses annotations to convert Java object to / from XML Content. JAXB solves the following puposes:
Marshalling – Convert a Java object into a XML Content.
Unmarshalling – Convert XML content into a Java Object.
You can find the simple example of JAXB at here.
Upvotes: 2
Reputation: 6804
Here is a sample JAVA Class uses JAXB to convert JAVA Object into XML Content
import java.io.StringReader;
import java.io.StringWriter;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.bind.annotation.XmlRootElement;
class JavaToXMLContent {
public static void main(String[] args) throws Throwable {
// =============================================================================================================
// Setup JAXB
// =============================================================================================================
// Create a JAXB context passing in the class of the object we want to marshal/unmarshal
final JAXBContext context = JAXBContext.newInstance(JavaObject.class);
// =============================================================================================================
// Marshalling OBJECT to XML
// =============================================================================================================
// Create the marshaller, this is the nifty little thing that will actually transform the object into XML
final Marshaller marshaller = context.createMarshaller();
// Create a stringWriter to hold the XML
final StringWriter stringWriter = new StringWriter();
// Create the sample object we wish to transform into XML
final JavaObject javaObject = new JavaObject();
javaObject.setName("Json");
javaObject.setRole("Moderator");
javaObject.setAge(28);
// Marshal the javaObject and write the XML to the stringWriter
marshaller.marshal(javaObject, stringWriter);
// Print out the contents of the stringWriter
System.out.println(stringWriter.toString());
// =============================================================================================================
// Unmarshalling XML to OBJECT
// =============================================================================================================
// Create the unmarshaller, this is the nifty little thing that will actually transform the XML back into an object
final Unmarshaller unmarshaller = context.createUnmarshaller();
// Unmarshal the XML in the stringWriter back into an object
final JavaObject javaObject2 = (JavaObject) unmarshaller.unmarshal(new StringReader(stringWriter.toString()));
// Print out the contents of the JavaObject we just unmarshalled from the XML
System.out.println(javaObject2.toString());
}
/**
* JavaObject is the sample object we've created to use for marshalling to and from XML.
* Make sure you have the @XmlRootElement annotation at the top there as well or JAXB
* might moan.
*/
@XmlRootElement
private static class JavaObject {
private String name;
private String role;
private int age;
public JavaObject() {
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getRole() {
return role;
}
public void setRole(String role) {
this.role = role;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "Name [" + this.name + "], Role [" + this.role + "], Age [" + this.age + "]";
}
}
}
Hope this will help you.
Upvotes: 1
Reputation: 25914
have a look at simplexml, it use annotation for mapping between xml and java field, very handy.
Upvotes: 0