Question

我正在尝试使用bean执行两个进程，我的问题是我无法找到这些进程连续执行的方式。第一个过程是发送一个对象，第二个过程是对象的响应。

@Component
public class Proceso implements InitializingBean{
    private static final String XML_SCHEMA_LOCATION = "/proceso/model/schema/proceso.xsd";
    private Envio envio;
    private Respuesta respuesta;

    public void Proceso_envio(Proceso proceso, OutputStream outputstream) throws JAXBException{
      envio.marshal(proceso, outputstream);}

    public void Proceso_respuesta(InputStream inputstream) throws JAXBException, FileNotFoundException{
    Object obj = unmarshaller.unmarshal(inputStream);
    return (Proceso_respuesta) obj;}

    @Override
    public void afterPropertiesSet() throws Exception{
        SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema schema = schemaFactory.newSchema(getClass().getResource(XML_SCHEMA_LOCATION));
        JAXBContext jc = JAXBContext.newInstance(Envio.class, Respuesta.class);

        this.marshaller = jc.createMarshaller();
        this.marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        this.marshaller.setProperty(Marshaller.JAXB_ENCODING, StandardCharsets.UTF_8.displayName());
        this.marshaller.setSchema(schema);

        this.unmarshaller = jc.createUnmarshaller();

        this.unmarshaller.setSchema(schema);
     }

我想通过代码，我的问题变得更加清晰。

Answer 1

尝试将Syncronized添加到您的方法

我多次遇到这种麻烦，因为接收器试图读取未完成的内容

javadoc中的更多信息：https://docs.oracle.com/javase/tutorial/essential/concurrency/syncmeth.html

当你将这个关键词添加到方法时，这将等到另一个，直到它完成

Answer 2

感谢maquina，

这是解决方案：

@Component
public class Proceso implements InitializingBean{
    private static final String XML_SCHEMA_LOCATION = "/proceso/model/schema/proceso.xsd";
    private Envio envio;
    private Respuesta respuesta;

    public synchronized void Proceso_envio(Proceso proceso, OutputStream outputstream) throws JAXBException{
      envio.marshal(proceso, outputstream);}

    public void synchronized Proceso_respuesta(InputStream inputstream) throws JAXBException, FileNotFoundException{
    Object obj = unmarshaller.unmarshal(inputStream);
    return (Proceso_respuesta) obj;}

    @Override
    public void afterPropertiesSet() throws Exception{
        SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
        Schema schema = schemaFactory.newSchema(getClass().getResource(XML_SCHEMA_LOCATION));
        JAXBContext jc = JAXBContext.newInstance(Envio.class, Respuesta.class);

        this.marshaller = jc.createMarshaller();
        this.marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
        this.marshaller.setProperty(Marshaller.JAXB_ENCODING, StandardCharsets.UTF_8.displayName());
        this.marshaller.setSchema(schema);

        this.unmarshaller = jc.createUnmarshaller();

        this.unmarshaller.setSchema(schema);
     }

问题：发送和接收数据

2 个答案: