judge.java

一个JAVA做的博客系统。系统采用JSP + JS + TOMCAT + MYSQL制作。用户能上传图片和音乐到系统中。游客和用户自己能在页面中浏览文件和听歌。

package login;

import java.io.IOException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Vector;

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

import cmt.CmtOp;

import common.UserOp;
import common.User;

import essay.EssayOp;
import essay.TitleOp;

public class Judge extends HttpServlet
{
	public void doPost(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException
	{
		request.setCharacterEncoding("gb2312");
		String username = request.getParameter("unToJudge");
		String path = null;
		HashMap props = (HashMap)request.getSession().getAttribute("props");
		try
		{
			if(username.equals("toCmtNotJudge"))
			{
				int id = Integer.parseInt(request.getParameter("pwToJudge"));
			    username = ((User)props.get("user")).getUsername();
				path = "/essay/show.jsp";
				if(props.containsKey("cmts"))
					props.remove("cmts");
				if(props.containsKey("essays"))
					props.remove("essays");
				Vector cmts = CmtOp.selectAll(id);
				if(cmts != null)
					props.put("cmts", cmts);
				Vector essays = EssayOp.selectAll(id, username);
				if(essays != null)
					props.put("essays", essays);
				props.put("title", TitleOp.selTitle(id));
				props.put("cmt", "yes");
				props.put("titleId", id);
			}
			else
			{
				String password = request.getParameter("pwToJudge");
				User user = UserOp.getUser(username, password);
				if(user != null)
				{
					path = "/toFrame.jsp";
					props.put("titles", TitleOp.selAll());
					props.put("user", user);
				}
				else
				{
					path = "/common/error.jsp";
					props.put("err", username + " is not exists.");
				}
			}
		}
		catch (Exception e)
		{
			path = "/common/error.jsp";
			props.put("err", e.getMessage());
		}
		finally
		{
			request.getSession().setAttribute("props", props);
			RequestDispatcher rd = request.getRequestDispatcher(path);
			rd.forward(request, response);
		}
	}
}