在Spring MVC中保存多对多

您将必须为控制器上对象的

tags

restaurant

@InitBinder    protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception {        super.initBinder(request, binder);        binder.registerCustomEditor(List.class, "tags",new CustomCollectionEditor(List.class){ @Override protected Object convertElement(Object element) {     Tag tag = new Tag();     if (element != null) {         Long id = Long.valueOf(element.toString());         tag.setId(id);     }     return tag; }        });    }