java - 如何将 InputStream 转换为 Source？

Question

我想使用存储在我的设备上的 xsd 架构文件来验证 xml 文档。这是我的示例代码:

SchemaFactory factory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);

// schema file on my device
InputStream isSchema = context.getResources().openRawResource(xsd_file);
// InputStream => Source conversion
Source schemaSource = ????
Schema schema = factory.newSchema(schemaSource);

Validator validator = schema.newValidator();
validator.validate(new DOMSource(document));

问题:如何将 InputStream 转换为 SchemaFactory::newSchema 方法所需的 Source ？

Answer 1

你不转换，你包装它。

Source schemaSource = new StreamSource(isSchema);

见:http://docs.oracle.com/javase/1.5.0/docs/api/javax/xml/transform/stream/StreamSource.html#StreamSource%28java.io.InputStream%29