The JAXB tool for Java operation XML

In the work of manipulating XML in Java, the more convenient tool is JAXB (Java Architecture for XML Binding).

This tool makes it easy to generate XML tags and Java class correspondence. Refer to the information on the Internet for a brief explanation of some of the Java operations XML.

1. First define an XML schema file. Like what:

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2. <? XML version= "1.0" encoding="UTF-8" standalone="yes"?>
4. <xs:schema version="1.0"
6. xmlns:xs="Http://www.w3.org/2001/XMLSchema">
10. <xs:element name="person">
12. <xs:complextype>
14. <xs:attribute name="name" type="xs:string"/>
16. <xs:attribute name="age" type="Xs:int"/>
18. </xs:complextype>
20. </xs:element>
22. </xs:schema>

The relevant XML schema definition rules can refer to http://www.w3.org/TR/xmlschema-2/

2. Generate the Java class.

Executing at the command line

C:\JAXB>XJC person.xsd

This generates the Persion class.

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2. Package Com.test.xml
6. Public class Person {
10. protected String name;
12. protected Integer age;
16. Public String GetName () {
18. return name;
20. }
24. public void SetName (String value) {
26. this.name = value;
28. }
32. Public Integer Getage () {
34. return age;
36. }
40. public void Setage (Integer value) {
42. this.age = value;
44. }
46. }

The type of tag and the corresponding relationship of the Java type.

XML Schema Type	Java Data Type
Xsd:string	Java.lang.String
Xsd:integer	Java.math.BigInteger
Xsd:int	Int
Xsd.long	Long
Xsd:short	Short
Xsd:decimal	Java.math.BigDecimal
Xsd:float	Float
Xsd:double	Double
Xsd:boolean	Boolean
Xsd:byte	Byte
Xsd:qname	Javax.xml.namespace.QName
Xsd:datetime	Javax.xml.datatype.XMLGregorianCalendar
Xsd:base64binary	Byte[]
Xsd:hexbinary	Byte[]
Xsd:unsignedint	Long
Xsd:unsignedshort	Int
Xsd:unsignedbyte	Short
Xsd:time	Javax.xml.datatype.XMLGregorianCalendar
Xsd:date	Javax.xml.datatype.XMLGregorianCalendar
Xsd:g	Javax.xml.datatype.XMLGregorianCalendar
Xsd:anysimpletype	Java.lang.Object
Xsd:anysimpletype	Java.lang.String
Xsd:duration	Javax.xml.datatype.Duration
Xsd:notation	Javax.xml.namespace.QName

3. Read the contents of the XML to the Java object.

Java reads An example of the contents of XML.

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2. Public class Unmarshallerutil {
6. Public Unmarshallerutil () {
8. try {
10. //1. Generating Jaxbcontex Objects
12. Jaxbcontext context = jaxbcontext.newinstance ("Com.test.xml");
16. //2. Generating Unmarsaller objects
18. Unmarshaller Unmarshaller = Context.createunmarshaller ();
22. File File = new file ("Artists.xml");
26. //3. Unmarsaller
28. Object obj = unmarshaller.unmarshal (file);
30. Persons artists = (Persons) obj;
34. //Other processing
38. } catch (Jaxbexception ex) {
42. }
44. }
48. public static void Main (string[] args) {
50. new Unmarshallerutil ();
52. }
54. }

The JAXB tool for Java operation XML