ajax提交一个包含list的实体

/** * 添加 */function insertPsas() { ???var psasName = $(‘#psasName‘).val(); ???if(materials[0]==null){ ???????layer.alert("请选择视频!"); ???????return; ???}else if(materials[1]==null || materials[2]==null){ ???????layer.alert("请选择图片!"); ???????return; ???} ???$.ajax({ ???????url : ctx + ‘/psas/insertPsas‘, ???????data : "{\"psasName\":\""+psasName+"\",\"materialList\":"+JSON.stringify(materials)+"}", ???????????????type : ‘post‘, ???????async : true, ???????dataType : "json", ???????contentType: "application/json", ???????success : function(data) { ???????????if (data.msg == ‘00‘) { ???????????????queryDevice(); ???????????????layer.alert(‘提交成功!‘, { ???????????????????icon : 1, ???????????????????skin : ‘layer-ext-moon‘ ???????????????}); ???????????} else if (data.msg == ‘02‘) { ???????????????layer.alert(‘提交失败!‘, { ???????????????????icon : 2, ???????????????????skin : ‘layer-ext-moon‘ ???????????????}); ???????????} ???????} ???});}

 ???@UserAnnotation(methodName = "添加公益广告", markName = "order.psas.insertPsas") ???@RequestMapping(value = "/insertPsas", method = { RequestMethod.POST, RequestMethod.GET }) ???public ?void insertPsas(HttpServletRequest request, HttpServletResponse response,@RequestBody Psas psas) throws Exception { ???????JSONObject jsonObject = new JSONObject(); ???????try { ???????????psas.setTemplateId(3L); ???????????psas.setCreateTime(DateUtil.getCurrDateTime()); ???????????psas.setValid(1); ???????????psas.setVersion(1L); ???????????this.psasService.insertPsas(psas); ???????????msg = Constants.SCUUESS; ???????} catch (Exception e) { ???????????log.error("insertDevice:" + e); ???????????msg = Constants.FAIL; ???????} ???????jsonObject.accumulate("msg", msg); ???????responseSendMsg(response, jsonObject.toString()); ???}

xml<bean id="mappingJackson2HttpMessageConverter" ???????class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> ???????<property name="supportedMediaTypes"> ???????????<list> ???????????????<value>text/html;charset=UTF-8</value> ???????????????<value>application/json</value> ???????????????????<!--自定义处理MediaType--> ???????????????????<value>text/json</value> ???????????</list> ???????</property> ???</bean>

实体
public class Psas extends BaseModel { ???????private Long id; ???????????private List<Material> materialList; ???????????????public List<Material> getMaterialList() { ???????????if (materialList == null) { ???????????????materialList = new ArrayList<Material>(); ???????????} ???????????return materialList; ???????} ???????public void setMaterialList(List<Material> materialList) { ???????????this.materialList = materialList; ???????}}