addmessageservlet.java

该系统是一个留言本

package com.v512.guestbook;

import java.io.IOException;
import java.text.SimpleDateFormat;
import javax.servlet.ServletException;
import javax.servlet.http.*;

import com.v512.guestbook.dao.GuestbookDAO;
import com.v512.guestbook.dao.jdbc.GuestbookDAOJdbc;
import com.v512.util.*;

public class AddMessageServlet extends HttpServlet {
	private static final long serialVersionUID = -8349454122547148005L;

	public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		boolean result = false;
		String message = "";
		String name = request.getParameter("name");
		String title = request.getParameter("title");

		if (StringUtil.validateNull(name)) {
			message = "对不起，姓名不能为空，请您重新输入！<br>";
		} else if (StringUtil.validateNull(title)) {
			message = "对不起，主题不能为空，请您重新输入！<br>";
		} else {
			Guestbook gb = new Guestbook();
			GuestbookDAO dao = new GuestbookDAOJdbc();
			gb.setName(StringUtil.filterHtml(name));
			gb.setTitle(StringUtil.filterHtml(title));
			gb.setPhone(StringUtil.filterHtml(request.getParameter("phone")));
			gb.setEmail(StringUtil.filterHtml(request.getParameter("email")));
			gb.setContent(request.getParameter("content"));

			SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
			gb.setTime(sdf.format(new java.util.Date()));

			result = dao.save(gb);

			if (result) {
				message = "祝贺您，成功添加留言。";
			} else {
				message = "对不起，添加留言不成功，请您重新输入！";
			}
		}
		request.setAttribute("message", message);
		request.getRequestDispatcher("/addResult.jsp").forward(request, response);
	}
}