参数化对象属性

由于您要求的是非详细的解决方案，因此您可以进行这种半脏的修复。

Owner.java

@Transientprivate Set<Pet> cats = new HashSet<Pet>();

[…]

// Call this from OwnerController before returning data to page.public void parsePets() {  for (Pet pet : getPetsInternal()) {    if ("cat".equals(pet.getType().getName())) {      cats.add(pet);    }  }}public getCats() {  return cats;}

ownerDetail.jsp

[...]<h3>Cats</h3><c:forEach var="cat" items="${owner.cats}">    <p>Name: <c:out value="${cat.name}" /></p></c:forEach><h3>All pets</h3>[...]

OwnerController.java

@RequestMapping("/owners/{ownerId}")public ModelAndView showOwner(@PathVariable("ownerId") int ownerId) {    ModelAndView mav = new ModelAndView("owners/ownerDetails");    Owner owner = this.clinicService.findOwnerById(ownerId);    owner.parsePets();    mav.addObject(owner);    return mav;}