package?interceptor;

import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;
import?yxn.pojo.User;


import?org.springframework.web.servlet.HandlerInterceptor;
import?org.springframework.web.servlet.ModelAndView;

/**?
?*?登錄認證的攔截器?
?*/??
public?class?LoginInterceptor??implements?HandlerInterceptor?{
	/**?定義不需要攔截的請求?*/
	private?static?final?String[]?IGNORE_URI?=?{?“/login“?“/wechar“};
	
	?/**?
?????*?該方法需要preHandle方法的返回值為true時才會執行。
?????*?該方法將在整個請求完成之后執行，主要作用是用于清理資源。
?????*/??
	@Override
	public?void?afterCompletion（HttpServletRequest?request
			HttpServletResponse?response?object?handler?Exception?exception）
			throws?Exception?{
		
	}

	?/**?
?????*?這個方法在preHandle方法返回值為true的時候才會執行。
?????*?執行時間是在處理器進行處理之?后，也就是在Controller的方法調用之后執行。
?????*/??
	@Override
	public?void?postHandle（HttpServletRequest?request?HttpServletResponse?response
			object?handler?ModelAndView?mv）?throws?Exception?{
		
	}

	?/**?
?????*?preHandle方法是進行處理器攔截用的，該方法將在Controller處理之前進行調用，
?????*?當preHandle的返回值為false的時候整個請求就結束了。?
?????*?如果preHandle的返回值為true，則會繼續執行postHandle和afterCompletion。
?????*/??
	@Override
	public?boolean?preHandle（HttpServletRequest?request?HttpServletResponse?response
			object?handler）?throws?Exception?{
		/**?默認用戶沒有登錄?*/
		boolean?flag?=?false;?
		/**?獲得請求的ServletPath?*/
		String?servletPath?=?request.getServletPath（）;
		/**??判斷請求是否需要攔截?*/
????????for?（String?s?:?IGNORE_URI）?{
????????????if?（servletPath.contains（s））?{
????????????????flag?=?true;
????????????????break;
????????????}
????????}
????????/**?攔截請求?*/
????????if?（!flag）{
????????	/**?1.獲取session中的用戶??*/
????????	User?user?=?（User）?request.getSession（）.getAttribute（“user_session“）;
????????	/**?2.判斷用戶是否已經登錄?*/
????????	if（user?!=null）{
????????		
????????		
????????		flag?=?true;
????????	}
????????	else{
????????		flag?=?false;
????????	}
????????}
????????return?flag;
		
	}

}

	
	


	

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????842??2018-06-13?17:30??考勤系統\attendanceSystem\.classpath

?????文件???????1049??2018-06-13?17:30??考勤系統\attendanceSystem\.project

?????文件????????567??2018-06-13?17:30??考勤系統\attendanceSystem\.settings\.jsdtscope

?????文件????????112??2018-06-19?12:06??考勤系統\attendanceSystem\.settings\org.eclipse.core.resources.prefs

?????文件????????364??2018-06-13?17:30??考勤系統\attendanceSystem\.settings\org.eclipse.jdt.core.prefs

?????文件????????500??2018-06-13?17:30??考勤系統\attendanceSystem\.settings\org.eclipse.wst.common.component

?????文件????????345??2018-06-13?17:30??考勤系統\attendanceSystem\.settings\org.eclipse.wst.common.project.facet.core.xml

?????文件?????????49??2018-06-13?17:30??考勤系統\attendanceSystem\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2018-06-13?17:30??考勤系統\attendanceSystem\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????5222??2018-06-27?00:53??考勤系統\attendanceSystem\attendance_db.sql

?????文件????????268??2018-06-13?17:32??考勤系統\attendanceSystem\build\classes\db.properties

?????文件???????2267??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\interceptor\LoginInterceptor.class

?????文件????????622??2016-07-17?15:14??考勤系統\attendanceSystem\build\classes\log4j.properties

?????文件????????724??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\constant\MessageType.class

?????文件???????2314??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\controller\courseController.class

?????文件????????744??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\controller\FormController.class

?????文件???????7448??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\controller\StudentController.class

?????文件???????7873??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\controller\TeacherController.class

?????文件???????1877??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\controller\UserController.class

?????文件???????3050??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\controller\WecharController.class

?????文件????????845??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\dao\AttendanceDao.class

?????文件???????2045??2018-06-26?18:34??考勤系統\attendanceSystem\build\classes\yxn\dao\AttendanceDao.xml

?????文件????????448??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\dao\CourseDao.class

?????文件???????1936??2018-06-27?08:34??考勤系統\attendanceSystem\build\classes\yxn\dao\CourseDao.xml

?????文件????????489??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\dao\ScDao.class

?????文件????????822??2018-06-26?20:17??考勤系統\attendanceSystem\build\classes\yxn\dao\ScDao.xml

?????文件????????256??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\dao\StudentDao.class

?????文件???????2274??2018-06-25?21:37??考勤系統\attendanceSystem\build\classes\yxn\dao\StudentDao.xml

?????文件????????391??2018-06-27?12:32??考勤系統\attendanceSystem\build\classes\yxn\dao\TeacherDao.class

?????文件???????2037??2018-06-27?00:40??考勤系統\attendanceSystem\build\classes\yxn\dao\TeacherDao.xml

............此處省略305個文件信息