How to ignore null values using springframework BeanUtils copyProperties?

Question

I would like to know how to copy the properties from an Object Source to an Object Dest ignoring null values​​ using Spring Framework.

I actually use Apache beanutil

Answer 1

I advise you to use ModelMapper.

This is a sample code that solves your doubt.

      ModelMapper modelMapper = new ModelMapper();
modelMapper.getConfiguration().setSkipNullEnabled(true).setMatchingStrategy(MatchingStrategies.STRICT);

      Company a = new Company();
      a.setId(123l);
      Company b = new Company();
      b.setId(456l);
      b.setName("ABC");

      modelMapper.map(a, b);

      System.out.println("->" + b.getName());

It should print the B value. But if you set the "A" name, the result is a print of "A" value.

The secret is changing the value of SkipNullEnabled to true.

ModelMapper

ModelMapper MVN