www.pudn.com > SSPP.rar > Info.java

package edu.neu.sspp.servlet; 
 
import java.io.IOException; 
 
import javax.servlet.ServletException; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
 
import edu.neu.sspp.SSPPLogger; 
import edu.neu.sspp.hibernate.HibernateSessionFactory; 
import edu.neu.sspp.hibernate.TTeacher; 
import edu.neu.sspp.hibernate.TTeacherDAO; 
import edu.neu.sspp.hibernate.TUser; 
import edu.neu.sspp.hibernate.TUserDAO; 
 
public class Info extends HttpServlet { 
 
	/** 
	 * Constructor of the object. 
	 */ 
	public Info() { 
		super(); 
	} 
 
	/** 
	 * Destruction of the servlet. 
 
	 */ 
	public void destroy() { 
		super.destroy(); // Just puts "destroy" string in log 
		// Put your code here 
	} 
 
	/** 
	 * The doGet method of the servlet. 
 
	 * 
	 * This method is called when a form has its tag value method equals to get. 
	 *  
	 * @param request the request send by the client to the server 
	 * @param response the response send by the server to the client 
	 * @throws ServletException if an error occurred 
	 * @throws IOException if an error occurred 
	 */ 
	public void doGet(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException { 
		String role = (String)request.getSession().getAttribute("login"); 
		if(role.equals("teacher")) { 
			TTeacherDAO teacherDAO = new TTeacherDAO(); 
			TTeacher teacher = teacherDAO.findById((String)request.getSession().getAttribute("id")); 
			 
			request.setAttribute("teacher", teacher); 
			 
			SSPPLogger.logInfo(teacher.getName() + " 查看信息" + " IP:" + request.getRemoteAddr()); 
		} 
		if(role.equals("user")) { 
			TUserDAO userDAO = new TUserDAO(); 
			TUser user = userDAO.findById((String)request.getSession().getAttribute("id")); 
			 
			request.setAttribute("user", user); 
			 
			SSPPLogger.logInfo(user.getUserName() + " 查看信息" + " IP:" + request.getRemoteAddr()); 
		} 
		//涉及懒读的不可以关闭，否则最好关了吧 
		HibernateSessionFactory.closeSession(); 
		 
		//相当于保存请求的重定向,字符串要求是相对于本servlet的路径 
		request.getRequestDispatcher("../mem_info.jsp").forward(request, response); 
	} 
	 
	//防止无法处理post请求 
	public void doPost(HttpServletRequest request, HttpServletResponse response) 
			throws ServletException, IOException { 
		doGet(request, response); 
	} 
	 
 
	/** 
	 * Initialization of the servlet. 
 
	 * 
	 * @throws ServletException if an error occure 
	 */ 
	public void init() throws ServletException { 
		// Put your code here 
	} 
 
}