我一直在尝试将一些对象序列化到System.out(用于调试)。 一旦我调用
final JsonSerializer serializer = new JsonSerializer();
serializer.serialize( System.out, myObj );
System.out.println("done");
它打印出了JSON,但是“done”从未被打印。调试这些行时,很明显第3行被执行了,但输出从未显示。
这是Jackson的一个错误还是我的操作有误?
编辑:
public class JsonSerializer
{
private ObjectMapper getConfiguredObjectMapper()
{
final ObjectMapper mapper = new ObjectMapper();
mapper.enable( SerializationConfig.Feature.INDENT_OUTPUT );
mapper.setVisibility( JsonMethod.FIELD, Visibility.ANY );
mapper.setVisibility( JsonMethod.GETTER, Visibility.NONE );
mapper.configure( SerializationConfig.Feature.AUTO_DETECT_GETTERS, false );
mapper.configure( SerializationConfig.Feature.AUTO_DETECT_IS_GETTERS, false );
mapper.configure( SerializationConfig.Feature.AUTO_DETECT_FIELDS, false );
final SimpleModule module = new SimpleModule( "ConnectorSerialization", new Version( 0, 1, 0, null ) );
module.addSerializer( new InputConnectorSerializer() );
module.addSerializer( new OutputConnectorSerializer() );
module.addSerializer( new StateSerializer() );
mapper.registerModule( module );
return mapper;
}
public void serialize( final OutputStream outputStream, final Object root )
{
final ObjectMapper mapper = getConfiguredObjectMapper();
try
{
mapper.writeValue( outputStream, root );
}
catch (final JsonGenerationException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (final JsonMappingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (final IOException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}