在利用spring的mvc开发过程中,需要将User对象从session中取出来使用。参照网上的做法,我利用 了AnnotationMethodHandlerAdapter来解决这个问题。下面是XML代码,放到web-inf下面的springMVC配 置文件中:
<bean id="userArgumentResolver" class="com.greatwall.module.yhqxgl.intercepTor.UserArgumentResolver" /> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" > <property name="customArgumentResolver"> <ref bean="userArgumentResolver"/> </property> </bean>
下面是java代码:
package com.greatwall.module.yhqxgl.intercepTor;import org.springframework.core.MethodParameter;import org.springframework.web.bind.support.WebArgumentResolver;import org.springframework.web.context.request.NativeWebRequest;import org.springframework.web.context.request.RequestAttributes;import com.greatwall.module.yhqxgl.YhqxglConstants;import com.greatwall.module.yhqxgl.domain.User;public class UserArgumentResolver implements WebArgumentResolver { public Object resolveArgument(MethodParameter methodParameter, NativeWebRequest webRequest) throws Exception { if (methodParameter.getParameterType().equals(User.class)) { return webRequest.getAttribute(YhqxglConstants.GREATWALL_SESSION_USER, RequestAttributes.SCOPE_SESSION); } return UNRESOLVED; }}
调用的过程很简单,直接在controller对应的函数里面加入参数User即可。
@RequestMapping("/txn960204.do") public void txn960204(HttpServletResponse response, HttpServletRequest req,SysCodedata sysCodedata,User user) { try { sysCodedata.setUpdateTime(DateUtils.currentDateTime()); sysCodedata.setUpdateUsername(user.getUsername()); sysCodedataService.updateOneSysCodedata(sysCodedata); JsonUtils.success("修改保存代码明细表成功!", response); } catch (ServiceException e) { e.printStackTrace(); JsonUtils.error(e, response); } }
没有什么可凭仗,只有他的好身体,没有地方可去,