publicpasterservlet.java

一个仿造淘宝的jsp网站。功能比较完善

package com.jc.taobao.gjj.action;

import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;

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

import com.jc.taobao.gjj.entity.MasterNote;
import com.jc.taobao.gjj.entity.ModeInfo;
import com.jc.taobao.gjj.entity.UserInfo;
import com.jc.taobao.gjj.logic.MasterNoteBean;
import com.jc.taobao.gjj.logic.ModeInfoBean;
import com.jc.taobao.gjj.logic.UserInfoBean;

public class PublicPasterServlet extends HttpServlet {

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

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

	/**
	 * 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 {

		response.setContentType("text/html");
		try {
			PrintWriter out = response.getWriter();
			HttpSession session=request.getSession();
			String username=(String)session.getAttribute("loginusername");/*从会话中得到用户名*/
			int uid=0;
			if(username!=null)
			{
			UserInfo user=new UserInfo();
			UserInfoBean ubean=new UserInfoBean();
			user.setUsername(username);
			ArrayList aluser=(ArrayList)ubean.getquerybyuserusename(user);
			UserInfo user1=(UserInfo)aluser.get(0);/*根据用户查询用户信息*/
			uid=user1.getUserid();/*获取用户编号*/
			}
			String modename=request.getParameter("publicmastermode");
			ModeInfoBean modebean=new ModeInfoBean();
			ArrayList modearray=modebean.getquerybymodelname(modename);
			ModeInfo mode=(ModeInfo)modearray.get(0);
			int modeid=mode.getModeid();
			String title=request.getParameter("publicpastertitle");
			String message=request.getParameter("publicpastermessage");
			SimpleDateFormat sim=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
			String time=sim.format(new Date());
			MasterNoteBean masterbean=new MasterNoteBean();
			MasterNote mn=new MasterNote();
			mn.setMastertitle(title);
			mn.setMastermessage(message);
			mn.setMastertime(time);
			mn.setModeid(modeid);
			mn.setUserid(uid);
			if(masterbean.save(mn)>0)
			{
				out.print("<script>alert('发帖成功');window.history.go(-1);</script>");
			}
			else
			{
				out.print("<script>alert('发帖失败');window.history.go(-1);</script>");
			}
		} catch (RuntimeException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	    
	}

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

}