使用spring AOP获得session的思路
由于Spring 的AOP面向切面编程，与Servlet容器没有任何关联，所以想要获得Session会话比较麻烦。
当然Struts2同样不依赖Servlet容器，可以在Spring AOP中可以使用com.opensymphony.xwork2.ActionContext，就可以获得Session。
但是在Servlet中或struts1中，可以通过ThreadLocal方式将session保存，Spring AOP中获得Session对象。
具体思路和代码：
这个是保存request和session的类
/**
*
* @author 株洲健坤北大青鸟 周钢
*
*/
public class SysContent {
private static ThreadLocal<HttpServletRequest> requestLocal= new ThreadLocal<HttpServletRequest>();
private static ThreadLocal<HttpServletResponse> responseLocal= new ThreadLocal<HttpServletResponse>();
public static HttpServletRequest getRequest() {
return (HttpServletRequest)requestLocal.get();
}
public static void setRequest(HttpServletRequest request) {
requestLocal.set(request);
}
public static HttpServletResponse getResponse() {
return (HttpServletResponse)responseLocal.get();
}
public static void setResponse(HttpServletResponse response) {
responseLocal.set(response);
}
public static HttpSession getSession() {
return (HttpSession)((HttpServletRequest)requestLocal.get()).getSession();
}
}
这个是配置的过滤器
/**
*
* @author 株洲健坤北大青鸟 周钢
*
*/
public class GetContent implements Filter {
@Override
public void destroy() {
// TODO Auto-generated method stub
}
@Override
public void doFilter(ServletRequest arg0, ServletResponse arg1,
FilterChain arg2) throws IOException, ServletException {
SysContent.setRequest((HttpServletRequest) arg0);
SysContent.setResponse((HttpServletResponse) arg1);
arg2.doFilter(arg0, arg1);
}
@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
}
}
使用AOP进行环绕通知切入所有com.aptech.service包下的所有类的方法
/**
* @author 株洲健坤北大青鸟 周钢
*/
@Aspect
public Class AopTest{
@Around(value="execution(* com.aptech.service.*.*(..))")
public void aroundTest(ProceedingJoinPoint pj) throws Exception {
HttpServletRequest request = SysContent.getRequest();
HttpServletResponse response = SysContent.getResponse();
HttpSession session = SysContent.getSession();
//其他操作
if(true){
pj.proceed();
}
throw new Exception("您没有该权限");
}
}