import java.lang.annotation.*;/*** <p>绑定当前登录的用户</p>* <p>不同于@ModelAttribute</p>*/
@Target({ElementType.PARAMETER})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface CurrentUser {/*** 当前用户在request中的名字** @return*/String value() default "loginUser";}

import com.gongren.cxht.pay.web.shiro.bind.annotation.CurrentUser;
import org.springframework.core.MethodParameter;
import org.springframework.web.bind.support.WebDataBinderFactory;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.ModelAndViewContainer;/*** <p>自定义方法参数解析器*/
public class CurrentUserMethodArgumentResolver implements HandlerMethodArgumentResolver {public CurrentUserMethodArgumentResolver() {}@Overridepublic boolean supportsParameter(MethodParameter parameter) {if (parameter.hasParameterAnnotation(CurrentUser.class)) {return true;}return false;}@Overridepublic Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception {CurrentUser currentUserAnnotation = parameter.getParameterAnnotation(CurrentUser.class);//从session的scope里取CurrentUser注解里的value属性值的key的valuereturn webRequest.getAttribute(currentUserAnnotation.value(), NativeWebRequest.SCOPE_SESSION);}
}

<mvc:annotation-driven><mvc:argument-resolvers><!-- SESSION USER --><bean class="com.test.CurrentUserMethodArgumentResolver"/></mvc:argument-resolvers>
</mvc:annotation-driven>

@RequestMapping(value = "/test")
public String test(@CurrentUser AccUserVo user) {}