使用springMVC框架时，怎样在controller里获得Session?

Question

使用springMVC框架时，怎样在controller里获得Session

Answer 1

直接在方法上使用 HttpSession即可注入； 或者注入HttpServletRequest--->再获取Session
public static HttpSession getSession() {
HttpSession session = null;
try {
session = getRequest().getSession();
} catch (Exception e) {}
return session;
}

public static HttpServletRequest getRequest() {
ServletRequestAttributes attrs = (ServletRequestAttributes) RequestContextHolder
.getRequestAttributes();
return attrs.getRequest();
}
通过上述两个方法获取，减少了方法中的参数个数