JAXBContextを使用したXMLの読み書きクラスと、

XMLSchemaのサンプルです。

XMLSchemaファイルをXJCでコンパイルしておくこと

XmlReader.java

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import org.hoge.xml.MemberList;
public class XmlReader {
private String filename;
private JAXBContext jaxbc;
XmlReader(String xmlFileName) throws JAXBException {
this.filename = xmlFileName;
jaxbc = JAXBContext.newInstance(MemberList.class);
}
public MemberList readListXml() throws JAXBException, IOException {
InputStream listIs = new FileInputStream(filename);
Unmarshaller um = jaxbc.createUnmarshaller();
MemberList list = (MemberList) um.unmarshal(listIs);
listIs.close();
return list;
}
public void writeListXml(MemberList getList) throws JAXBException, IOException {
OutputStream os = new FileOutputStream(filename);
Marshaller mu = jaxbc.createMarshaller();
mu.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
mu.marshal(getList, os);
os.close();
}
}

memberList.xsd

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<xsd:element name="memberList">
<xsd:complexType>
<xsd:sequence minOccurs="1" maxOccurs="unbounded">
<xsd:element name="member" type="memberType" />
</xsd:sequence>
<xsd:attribute ref="listName" />
</xsd:complexType>
</xsd:element>
<xsd:complexType name="memberType">
<xsd:sequence>
<xsd:element ref="name" />
<xsd:element ref="joinDate" />
<xsd:element ref="url" />
<xsd:element ref="comment" />
</xsd:sequence>
</xsd:complexType>
<xsd:element name="name" type="xsd:string" />
<xsd:element name="joinDate" type="xsd:date" />
<xsd:element name="url" type="xsd:anyURI" />
<xsd:element name="comment" type="xsd:string" />
<xsd:attribute name="listName" type="xsd:string" />
</xsd:schema>

やっつけです。はい