friendservlet.java

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package com.yxq.servlet;

import java.io.IOException;
import java.util.List;

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

import com.yxq.dao.FriendDao;
import com.yxq.toolsbean.MyTools;
import com.yxq.valuebean.FriendBean;

public class FriendServlet extends HttpServlet
{
	private static final long serialVersionUID = 1L;

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

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException
	{
		String action = request.getParameter("action");
		if (action == null)
			action = "";
		if (action.equals("add"))
		{ // 添加朋友信息
			this.addFriend(request, response);
		}
		if (action.equals("modify"))
		{ // 修改朋友信息
			this.modifyFriend(request, response);
		}
		if (action.equals("delete"))
		{ // 删除朋友信息
			this.deleteFriend(request, response);
		}
		if (action.equals("single"))
		{ // 查询某个好友详细信息
			this.singleFriend(request, response);
		}
		if (action.equals("list"))
		{
			this.listFriend(request, response); // 查询所有好友信息
		}
		if (action.equals("adminSingle"))
		{ // 查询某个好友详细信息
			this.adminSingleFriend(request, response);
		}
		if (action.equals("adminList"))
		{
			this.adminListFriend(request, response); // 查询所有好友信息
		}
	}

	/**
	 * @功能 后台-修改好友信息
	 */
	public void modifyFriend(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException
	{
		RequestDispatcher rd = null;
		FriendDao friendDao = new FriendDao();
		String type = request.getParameter("type");
		if (type == null)
			type = "";
		if (!type.equals("doModify"))
		{
			int id = MyTools.strToint(request.getParameter("id"));
			FriendBean friendBean = friendDao.queryFriendSingle(id);
			request.setAttribute("modifySingle", friendBean);
			rd = request.getRequestDispatcher("/admin/friend/FriendModify.jsp");
			rd.forward(request, response);
		} else
		{
			String messages = "";
			String href = "";
			String forward = "";
			boolean flag = validateFriend(request, response);
			if (flag)
			{
				FriendBean friendBean = new FriendBean();
				friendBean.setId(MyTools.strToint(request.getParameter("id")));
				friendBean.setName(MyTools.toChinese(request
						.getParameter("name")));
				friendBean.setSex(MyTools
						.toChinese(request.getParameter("sex")));
				friendBean.setOicq(MyTools.toChinese(request
						.getParameter("oicq")));
				friendBean.setBlog(request.getParameter("oicq"));

				boolean mark = friendDao.operationFriend("modify", friendBean);
				if (mark)
				{
					messages = "<li>修改成功！</li>";
					href = "<a href='FriendServlet?action=adminList'>[继续修改其他好友]</a>";
					forward = "/admin/success.jsp";
				} else
				{
					messages = "<li>修改失败！</li>";
					href = "<a href='javascript:window.history.go(-1)>[返回]</a>";
					forward = "/admin/error.jsp";
				}
				request.setAttribute("messages", messages);
				request.setAttribute("href", href);
			} else
			{
				href = "<a href='javascript:window.history.go(-1)>[返回]</a>";
				forward = "/admin/error.jsp";
				request.setAttribute("href", href);
			}
			rd = request.getRequestDispatcher(forward);
			rd.forward(request, response);
		}
	}

	/**
	 * @功能 前台-查询某个好友信息
	 */
	public void singleFriend(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException
	{
		String strId = request.getParameter("id");
		int id = MyTools.strToint(strId);
		FriendDao friendDao = new FriendDao();
		FriendBean friendSingle = friendDao.queryFriendSingle(id);
		request.setAttribute("friendSingle", friendSingle);

		RequestDispatcher rd = request
				.getRequestDispatcher("/front/friend/FriendSingle.jsp");
		rd.forward(request, response);
	}

	/**
	 * @功能 后台-查询某个好友信息
	 */
	public void adminSingleFriend(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException
	{
		String strId = request.getParameter("id");
		int id = MyTools.strToint(strId);
		FriendDao friendDao = new FriendDao();
		FriendBean friendSingle = friendDao.queryFriendSingle(id);
		request.setAttribute("friendSingle", friendSingle);

		RequestDispatcher rd = request
				.getRequestDispatcher("/admin/friend/FriendSingle.jsp");
		rd.forward(request, response);
	}

	/**
	 * @功能 后台-删除好友信息
	 */
	public void deleteFriend(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException
	{
		FriendDao friendDao = new FriendDao();
		FriendBean friendBean = new FriendBean();

		String messages = "";
		String href = "";
		String forward = "";

		friendBean.setId(MyTools.strToint(request.getParameter("id")));
		boolean mark = friendDao.operationFriend("delete", friendBean);
		if (mark)
		{
			messages += "<li>删除好友成功！</li>";
			href = "<a href='FriendServlet?action=adminList'>[继续删除其他好友]</a>";
			forward = "/admin/success.jsp";

		} else
		{
			messages += "<li>删除好友失败！</li>";
			href = "<a href='javascript:window.history.go(-1)'>[返回]</a>";
			forward = "/admin/error.jsp";
		}
		request.setAttribute("messages", messages);
		request.setAttribute("href", href);
		RequestDispatcher rd = request.getRequestDispatcher(forward);
		rd.forward(request, response);
	}

	/**
	 * @功能 验证表单数据
	 */
	public boolean validateFriend(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException
	{
		boolean mark = true;
		String messages = "";

		String name = request.getParameter("name");
		String sex = request.getParameter("sex");
		String oicq = request.getParameter("oicq");
		String blog = request.getParameter("blog");

		if (name == null || name.equals(""))
		{
			mark = false;
			messages += "<li>请输入 <b>好友姓名！</b></li>";
		}
		if (sex == null || sex.equals(""))
		{
			mark = false;
			messages += "<li>请选择 <b>好友性别！</b></li>";
		}
		if (oicq == null || oicq.equals(""))
		{
			mark = false;
			messages += "<li>请输入 <b>QQ 号码！</b></li>";
		}
		if (blog == null || blog.equals(""))
		{
			mark = false;
			messages += "<li>请输入 <b>BLOG地址！</b></li>";
		}
		request.setAttribute("messages", messages);
		return mark;
	}

	/**
	 * @功能 后台-添加好友信息
	 */
	public void addFriend(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException
	{
		String messages = "";
		String href = "";
		String forward = "";

		boolean flag = validateFriend(request, response);
		if (flag)
		{
			FriendDao friendDao = new FriendDao();
			FriendBean friendBean = new FriendBean();
			friendBean.setName(MyTools.toChinese(request.getParameter("name")));
			friendBean.setSex(MyTools.toChinese(request.getParameter("sex")));
			friendBean.setOicq(request.getParameter("oicq"));
			friendBean.setBlog(request.getParameter("blog"));

			boolean mark = friendDao.operationFriend("add", friendBean);
			friendDao.closeConnection();
			if (mark)
			{
				messages = "<li>添加好友成功！</li>";
				href = "<a href='admin/friend/FriendAdd.jsp'>[继续添加]</a>";
				forward = "/admin/success.jsp";
			} else
			{
				messages = "<li>添加好友失败！</li>";
				href = "<a href='javascript:window.history.go(-1)'>[返回]</a>";
				forward = "/admin/error.jsp";
			}
			request.setAttribute("messages", messages);
		} else
		{
			href = "<a href='javascript:window.history.go(-1)'>[返回]</a>";
			forward = "/admin/error.jsp";
		}
		request.setAttribute("href", href);
		RequestDispatcher rd = request.getRequestDispatcher(forward);
		rd.forward(request, response);
	}

	/**
	 * @功能 前台-查询所有好友
	 */
	public void listFriend(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException
	{
		FriendDao friendDao = new FriendDao();
		List<?> friendList = friendDao.queryFriend("all");
		request.setAttribute("friendList", friendList);

		RequestDispatcher rd = request
				.getRequestDispatcher("/front/friend/FriendList.jsp");
		rd.forward(request, response);
	}

	/**
	 * @功能 后台-查询所有好友
	 */
	public void adminListFriend(HttpServletRequest request,
			HttpServletResponse response) throws IOException, ServletException
	{
		FriendDao friendDao = new FriendDao();
		List<?> friendList = friendDao.queryFriend("all");
		request.setAttribute("friendList", friendList);

		RequestDispatcher rd = request
				.getRequestDispatcher("/admin/friend/FriendList.jsp");
		rd.forward(request, response);
	}
}