actionservlet.java

servlet做的学员管理系统的软代码大家咄咄支持

package com.allan.ums.action;

import java.io.IOException;
import java.util.Collection;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.allan.ums.entity.User;
import com.allan.ums.service.UserService;
import com.allan.ums.util.RequestUtil;

public class ActionServlet extends HttpServlet {
	private UserService userService = new UserService();

	public void execute(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		String path = request.getServletPath();
		path = path.substring(0, path.indexOf("."));
		String nextPage = null;
		if (path.equals("/user/search")) {
			nextPage = searchUsers(request, response);
		} else if (path.equals("/user/add")) {

		} else if (path.equals("/user/modify")) {

		} else if (path.equals("/user/remove")) {

		} else if (path.equals("/user/load")) {

		} else {
			response.sendError(HttpServletResponse.SC_NOT_FOUND, path
					+ " is not a valid request url");
		}
		RequestUtil.forward(getServletContext(), request, response, nextPage);
	}

	private String searchUsers(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		User user = new User();
		String username = request.getParameter("username");
		if (username != null && username.trim().length() > 0) {
			user.setUsername(username);
		}
		String gender = request.getParameter("gender");
		if (gender != null && !gender.equals("all")) {
			user.setGender(gender);
		}

		String email = request.getParameter("email");
		if (email != null && email.trim().length() > 0) {
			user.setEmail(email);
		}
		try {
			Collection<User> users = userService.find(user);
			request.setAttribute("users", users);
			return "/user/list";
		} catch (Exception e) {
			e.printStackTrace();
		}
		return "/error";
	}

	@Override
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		execute(request, response);
	}

	@Override
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		execute(request, response);
	}
}