Session工具类

  1 import com.diyfintech.constant.Constant.SuperAdmin;
  2 import com.diyfintech.pojo.SysUser;
  3 import org.apache.log4j.Logger;
  4 
  5 import javax.servlet.http.HttpServletRequest;
  6 import java.util.List;
  7 import java.util.Map;
  8 
  9 /**
 10  * 
 11  * Session 工具类
 12  *
 13  */
 14 public final class SessionUtils {
 15     
 16     protected static final Logger logger = Logger.getLogger(SessionUtils.class);
 17     
 18     private static final String SESSION_USER = "session_user";
 19 
 20     private static final String SESSION_VALIDATECODE = "session_validatecode";//验证码
 21     
 22     
 23     private static final String SESSION_ACCESS_URLS = "session_access_urls"; //系统能够访问的URL
 24     
 25     
 26     private static final String SESSION_MENUBTN_MAP = "session_menubtn_map"; //系统菜单按钮
 27 
 28     
 29     /**
 30       * 设置session的值
 31       * @param request
 32       * @param key
 33       * @param value
 34       */
 35      public static void setAttr(HttpServletRequest request,String key,Object value){
 36          request.getSession(true).setAttribute(key, value);
 37      }
 38      
 39      
 40      /**
 41       * 获取session的值
 42       * @param request
 43       * @param key
 44       */
 45      public static Object getAttr(HttpServletRequest request,String key){
 46          return request.getSession(true).getAttribute(key);
 47      }
 48      
 49      /**
 50       * 删除Session值
 51       * @param request
 52       * @param key
 53       */
 54      public static void removeAttr(HttpServletRequest request,String key){
 55          request.getSession(true).removeAttribute(key);
 56      }
 57      
 58      /**
 59       * 设置用户信息 到session
 60       * @param request
 61       * @param user
 62       */
 63      public static void setUser(HttpServletRequest request,SysUser user){
 64          request.getSession(true).setAttribute(SESSION_USER, user);
 65      }
 66      
 67      
 68      /**
 69       * 从session中获取用户信息
 70       * @param request
 71       * @return SysUser
 72       */
 73      public static SysUser getUser(HttpServletRequest request){
 74         return (SysUser)request.getSession(true).getAttribute(SESSION_USER);
 75      }
 76      
 77      
 78      /**
 79       * 从session中获取用户信息
 80       * @param request
 81       * @return SysUser
 82       */
 83      public static void removeUser(HttpServletRequest request){
 84         removeAttr(request, SESSION_USER);
 85      }
 86      
 87      
 88      /**
 89       * 设置验证码 到session
 90       * @param request
 91       * @param validateCode
 92       */
 93      public static void setValidateCode(HttpServletRequest request,String validateCode){
 94          request.getSession(true).setAttribute(SESSION_VALIDATECODE, validateCode);
 95      }
 96      
 97      
 98      /**
 99       * 从session中获取验证码
100       * @param request
101       * @return SysUser
102       */
103      public static String getValidateCode(HttpServletRequest request){
104         return (String)request.getSession(true).getAttribute(SESSION_VALIDATECODE);
105      }
106      
107      
108      /**
109       * 从session中获删除验证码
110       * @param request
111       * @return SysUser
112       */
113      public static void removeValidateCode(HttpServletRequest request){
114         removeAttr(request, SESSION_VALIDATECODE);
115      }
116      
117      /**
118       * 判断当前登录用户是否超级管理员
119       * @param request
120       * @return
121       */
122      public static boolean isAdmin(HttpServletRequest request){ //判断登录用户是否超级管理员
123          SysUser user =  getUser(request);
124          if(user == null  || !SuperAdmin.YES.key.endsWith(user.getIsSuperAdmin())){
125              return false;
126          }
127          return true;
128      }
129      
130      /**
131      *设置当前用户可以访问的urls
132      * @param request
133      * @param accessUrls
134      */
135     public static void setAccessUrl(HttpServletRequest request,List<String> accessUrls){ 
136          setAttr(request, SESSION_ACCESS_URLS, accessUrls);
137      }
138      
139      
140      
141      /**
142       * 判断URL是否可访问
143       * @param request
144       * @return
145       */
146      public static boolean isAccessUrl(HttpServletRequest request,String url){ 
147          List<String> accessUrls = (List)getAttr(request, SESSION_ACCESS_URLS);
148          if(accessUrls == null ||accessUrls.isEmpty() || !accessUrls.contains(url)){
149              return false;
150          }
151          return true;
152      }
153      
154      
155      /**
156       * 设置菜单按钮
157       * @param request
158       * @param btnMap
159       */
160      public static void setMemuBtnMap(HttpServletRequest request,Map<String,Object> btnMap){ //判断登录用户是否超级管理员
161          setAttr(request, SESSION_MENUBTN_MAP, btnMap);
162      }
163      
164      /**
165       * 获取菜单按钮
166       * @param request
167       * @param menuUri
168       */
169      public static List<String> getMemuBtnListVal(HttpServletRequest request,String menuUri){ 
170          Map btnMap  = (Map)getAttr(request, SESSION_MENUBTN_MAP);
171          if(btnMap == null || btnMap.isEmpty()){
172              return null;
173          }
174          return (List<String>)btnMap.get(menuUri);
175      }
176     
177 }