getuserservlet.java

来自「基于MVC模式的文章采集检索系统」· Java 代码 · 共 92 行

package com.liubin.servlet.user;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.*;
import com.liubin.model.User;
import com.liubin.service.user.UserService;

public class GetUserServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public GetUserServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * 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 id=request.getParameter("id");
		String path=null;
		if(id!=null){
			UserService service =new UserService();
			User user=service.getUserById(id);
			request.setAttribute("user", user);
			String pagenum=request.getParameter("page");
			if(pagenum!=null){
			request.setAttribute("pagenum", pagenum);
			}else
			{
			request.setAttribute("pagenum", (String)request.getAttribute("pagenum"));
			}
			path="user/updateUser.jsp";
			
		}
		else{
			path="listUserServlet";
		}
		request.getRequestDispatcher(path).forward(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @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 doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

			this.doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}