?? powerutil.java
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package com.xaccp.util;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import com.xaccp.biz.po.User;
import com.xaccp.biz.service.power.PowerStrategy;
import com.xaccp.biz.service.power.PowerStrategyFactory;
public class PowerUtil {
private static User user;
private static Map powerMap;
private static void getUserAndPower(HttpServletRequest request) {
HttpSession session = request.getSession();
user = (User)session.getAttribute(PowerConstants.USER_KEY);
powerMap = (Map)session.getAttribute(PowerConstants.USER_POWER_KEY);
}
public static boolean isUserInPower(HttpServletRequest request, String powerShortName) {
getUserAndPower(request);
if (user==null || powerMap==null) return false;
//獲取策略
PowerStrategy strategy = PowerStrategyFactory.create(user.getStrategy());
return strategy.isHavePower(powerShortName, powerMap);
}
public static void assertUserInPower(HttpServletRequest request, String powerShortName) throws NoSuchPowerException {
boolean flag = isUserInPower(request, powerShortName);
if (!flag) throw new NoSuchPowerException();
}
}
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