Question

我正试图通过遵循本文Is it possible to generate a XSD from a JAXB-annotated class中提到的代码从Java Annotated类生成XSD {/ 3>

JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
SchemaOutputResolver sor = new MySchemaOutputResolver();
jaxbContext.generateSchema(sor);

public class MySchemaOutputResolver extends SchemaOutputResolver {

    public Result createOutput(String namespaceURI, String suggestedFileName) throws IOException {
        File file = new File(suggestedFileName);
        StreamResult result = new StreamResult(file);
        result.setSystemId(file.toURI().toURL().toString());
        return result;
    }

}

这种技术正在使用文件系统，我的要求是在不使用文件系统的情况下将XML作为String。

是否有可能SchemaOutputResolver的实现可能无法将文件写入磁盘并使用String值返回或设置某个实例变量。

Answer 1

您可以在StreamResult上写下StringWriter并从中获取字符串。

JAXBContext jaxbContext = JAXBContext.newInstance(Customer.class);
MySchemaOutputResolver sor = new MySchemaOutputResolver();
jaxbContext.generateSchema(sor);
String schema = sor.getSchema();

public class MySchemaOutputResolver extends SchemaOutputResolver {
    private StringWriter stringWriter = new StringWriter();    

    public Result createOutput(String namespaceURI, String suggestedFileName) throws IOException  {
        StreamResult result = new StreamResult(stringWriter);
        result.setSystemId(suggestedFileName);
        return result;
    }

    public String getSchema() {
        return stringWriter.toString();
    }

}

不使用File从JAXB注释类生成XSD

1 个答案: