我正在寻找一个可以采用XSD架构并创建一个可以操作的示例XML文档的Java库。在我的简单示例中,我获得了一个加载,操作和打印的XML。如果我只获得XSD,我怎样才能获得相同的结果?
String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" +
"<ns0:store_msg xmlns:ns0=\"http://data\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://data sample.xsd \">" +
"<item>" +
"<name>A</name>" +
"<price>1.1</price>" +
"</item>" +
"<item>" +
"<name>B</name>" +
"<price>2.2</price>" +
"</item>" +
"</ns0:store_msg>";
// load XML
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = builderFactory.newDocumentBuilder();
Document doc = builder.parse(new ByteArrayInputStream(xml.getBytes()));
// manipulate XML
Node root = doc.getFirstChild();
Element el = doc.createElement("item");
Element name = doc.createElement("name");
Element price = doc.createElement("price");
name.setTextContent("C");
price.setTextContent("2.2");
el.appendChild(name);
el.appendChild(price);
root.appendChild(el);
// print XML
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "no");
transformer.setOutputProperty(OutputKeys.METHOD, "xml");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
transformer.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "4");
transformer.transform(new DOMSource(doc),
new StreamResult(new OutputStreamWriter(System.out, "UTF-8")));
答案 0 :(得分:1)
一个。使用JAXB(首选):
预步骤:从XSD生成JAXB Java类,例如maven-jaxb2-plugin或其他工具或手动调用XJC编译器
当您需要类创建根元素时:
StoreMsg myStoreMsgRoot = new StoreMsg(); // Class must be what JAXB generated for store_msg element
根据需要填充所需的元素。例如:
Item firstItem = new Item();
firstItem.setName("A");
firstItem.setPrice(1.1);
myStoreMsgRoot.getItem().add(firstItem);
依此类推
然后使用JAXBContext作为示例将您的根元素封送到String
JAXBContext jaxbCtx = JAXBContext.newInstance(StoreMsg.class);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
jaxbCtx.createMarshaller().marshal(myStoreMsgRoot, bos);
String generatedXml = new String(bos.toByteArray());
bos.close();
B中。有一个框架可以做到 - jlibs 。
简单示例如下:jlibs - XSInstance.wiki
除此之外,您可能需要设置大量属性来处理@VCR评论的案例。
乍一看它以某种方式起作用。
只是最新版本需要依赖(通过如下的Maven或类路径中的jar文件):
<!-- https://mvnrepository.com/artifact/in.jlibs/jlibs-xsd -->
<dependency>
<groupId>in.jlibs</groupId>
<artifactId>jlibs-xsd</artifactId>
<version>2.2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/in.jlibs/jlibs-xml -->
<dependency>
<groupId>in.jlibs</groupId>
<artifactId>jlibs-xml</artifactId>
<version>2.1</version>
</dependency>
<dependency>
<groupId>xerces</groupId>
<artifactId>xerces</artifactId>
<version>2.4.0</version>
</dependency>
<dependency>
<groupId>xerces</groupId>
<artifactId>xercesImpl</artifactId>
<version>2.11.0-22</version>
</dependency>