关于SpringMVC 控制器返回json乱码问题

@RequestMapping(value = "/getFlavorList",produces="application/json;charset=utf-8", method = {RequestMethod.POST,RequestMethod.GET})

public @ResponseBody NetResult getApplyProjectCon(HttpSession session) {

NetResult r=new NetResult();

TenantDAO tdao=new TenantDAOImpl();

List<Tenant> alltenant=tdao.findall();

List<Flavor> flavors=new ArrayList<>();

if(alltenant==null) {

r.status=-1;

r.result="不存在资源池";

return r;

}

r.result=(List<Flavor>) FlavorHelp.getFlavorList(alltenant.get(0)).result;

return r;

}

备忘：produces="application/json;charset=utf-8"