级联删除栏目

<pre name="code" class="java">public String del() {String[] ids = getRequest().getParameterValues("ids");if (ids != null) {for (String id : ids) {Section section = sectionService.get(new Long(id));if(null != section){delse(section);}}}jsonString = "{success:true}";return SUCCESS;}private void delse(Section section){Set<Section> sets=section.getSections();if(sets.size()>0){for (Section section2 : sets) {delse(section2);}sectionService.remove(section);}else{sectionService.remove(section);}}