springMVC自定义参数绑定

JAVA代码:

public class AppUserArgumentResolver implements HandlerMethodArgumentResolver{ private static Logger log=Logger.getLogger(AppUserArgumentResolver.class); @Override public Object resolveArgument(MethodParameter methodParameter, ModelAndViewContainer modelAndViewContainer, NativeWebRequest nativeWebRequest, WebDataBinderFactory webDataBinderFactory) throws Exception { Object object = nativeWebRequest.getAttribute(SystemConf.APP_USER_REQUESTSCOPE, RequestAttributes.SCOPE_REQUEST); if(object==null){ throw new MyException("********************"); } nativeWebRequest.removeAttribute(SystemConf.APP_USER_REQUESTSCOPE, RequestAttributes.SCOPE_REQUEST); return object; } @Override public boolean supportsParameter(MethodParameter methodParameter) { if(methodParameter.getParameterAnnotation(AppUser.class)!=null){ return true; } return false; } }

springMVC配置

<!-- 配置处理器映射器 适配器 --> <mvc:annotation-driven > <mvc:argument-resolvers> <bean class="com.AppUserArgumentResolver" /> </mvc:argument-resolvers> </mvc:annotation-driven>