!42 你好，退出登录应该清空cookie

Merge pull request !42 from CHEN/guns-branch-for-pullrequest

guns-admin/src/main/java/com/stylefeng/guns/modular/system/controller/LoginController.java

@@ -128,6 +128,7 @@ public class LoginController extends BaseController {
     public String logOut() {
         LogManager.me().executeLog(LogTaskFactory.exitLog(ShiroKit.getUser().getId(), getIp()));
         ShiroKit.getSubject().logout();
+        deleteAllCookie();
         return REDIRECT + "/login";
     }
 }

guns-core/src/main/java/com/stylefeng/guns/core/base/controller/BaseController.java

@@ -84,6 +84,18 @@ public class BaseController {
     }
 
     /**
+     * 删除所有cookie
+     */
+    protected void deleteAllCookie() {
+        Cookie[] cookies = this.getHttpServletRequest().getCookies();
+        for (Cookie cookie : cookies) {
+            Cookie temp = new Cookie(cookie.getName(), "");
+            temp.setMaxAge(0);
+            this.getHttpServletResponse().addCookie(temp);
+        }
+    }
+
+    /**
      * 返回前台文件流
      *
      * @author fengshuonan