Spring MVC - @Valid on list of beans in REST service

Question

In a Spring MVC REST service (json), I have a controller method like this one :

@RequestMapping(method = RequestMethod.POST, value = { \"/doesntmatter\" })
         


        

Answer 1

Using com.google.common.collect.ForwardingList

public class ValidList extends ForwardingList {

  private List<@Valid T> list;

  public ValidList() {
    this(new ArrayList<>());
  }

  public ValidList(List<@Valid T> list) {
    this.list = list;
  }

  @Override
  protected List delegate() {
    return list;
  }

  /** Exposed for the {@link javax.validation.Validator} to access the list path */
  public List getList() {
    return list;
  }
}

So no need for the wrapper

you may use

@RequestMapping(method = RequestMethod.POST, value = { "/doesntmatter" })
@ResponseBody
public List<...> myMethod(@Valid @RequestBody ValidList request, BindingResult bindingResult) {

By using wrapper your JSON needs to be changed to

{
  "list": []
}

with this implementation you can use original JSON

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