package?servlets;

import?java.io.IOException;
import?java.io.PrintWriter;

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

public?class?checklogin?extends?HttpServlet?{

	/**
	?*?
	?*/
	private?static?final?long?serialVersionUID?=?1L;

	/**
	?*?The?doGet?method?of?the?servlet.?

	?*
	?*?This?method?is?called?when?a?form?has?its?tag?value?method?equals?to?get.
	?*?
	?*?@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?doGet（HttpServletRequest?request?HttpServletResponse?response）
			throws?ServletException?IOException?{

		response.setContentType（“text/html;charset=gbk“）;
		PrintWriter?out=?response.getWriter（）;
		HttpSession?session=request.getSession（）;
		String?forward;
		//判斷用戶是否已經(jīng)登錄
		if（session.getAttribute（“username“）==null）{
			request.setAttribute（“info““您未登錄，請先登錄！“）;
			forward=“userlogin.jsp“;
		}else{
			forward=“cart.jsp“;
		}
		RequestDispatcher?rd=request.getRequestDispatcher（forward）;
		rd.forward（requestresponse）;
	}

	/**
	?*?The?doPost?method?of?the?servlet.?

	?*
	?*?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“）;
		PrintWriter?out?=?response.getWriter（）;
		out
				.println（““）;
		out.println（““）;
		out.println（“??tle>A?Servlettle>“）;
		out.println（“??“）;
		out.print（“????This?is?“）;
		out.print（this.getClass（））;
		out.println（“?using?the?POST?method“）;
		out.println（“??“）;
		out.println（““）;
		out.flush（）;
		out.close（）;
	}

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????2251776??2011-06-26?23:24??0820420101\2011Web系統(tǒng)開發(fā)與設(shè)計-期末課程設(shè)計報告.doc

?????文件????????417??2011-06-22?19:10??0820420101\lk\.classpath

?????文件????????840??2011-06-24?15:27??0820420101\lk\.myeclipse\profiler\lk?on?MyEclipse?Tomcat.xml

?????文件????????281??2011-06-24?14:50??0820420101\lk\.mymetadata

?????文件???????1412??2011-06-22?17:36??0820420101\lk\.project

?????文件????????500??2011-06-22?17:36??0820420101\lk\.settings\.jsdtscope

?????文件????????334??2011-06-22?17:36??0820420101\lk\.settings\org.eclipse.jdt.core.prefs

?????文件?????????49??2011-06-22?19:10??0820420101\lk\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2011-06-22?19:10??0820420101\lk\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????2404??2011-06-22?17:36??0820420101\lk\src\servlets\checklogin.java

?????文件???????3112??2011-06-22?17:36??0820420101\lk\src\servlets\GetUserinfoServlet.java

?????文件???????2263??2011-06-24?14:53??0820420101\lk\src\servlets\login.java

?????文件???????1433??2011-06-22?17:36??0820420101\lk\src\servlets\logout.java

?????文件???????3105??2011-06-22?17:36??0820420101\lk\src\servlets\modifyUser.java

?????文件???????4121??2011-06-22?19:17??0820420101\lk\src\servlets\regservlet.java

?????文件???????5140??2011-06-22?19:17??0820420101\lk\src\servlets\ShowUserServlet.java

?????文件???????2417??2011-06-22?17:36??0820420101\lk\src\servlets\UserInfoManager.java

?????文件???????3901??2011-06-22?17:36??0820420101\lk\src\shopservlets\addgoods.java

?????文件???????3406??2011-06-22?17:36??0820420101\lk\src\shopservlets\addtocart.java

?????文件???????5394??2011-06-22?17:36??0820420101\lk\src\shopservlets\buyservlet.java

?????文件???????4749??2011-06-25?18:37??0820420101\lk\src\shopservlets\GetAllGoodsServlet.java

?????文件???????4201??2011-06-22?21:26??0820420101\lk\src\shopservlets\modifygoods.java

?????文件???????3199??2011-06-22?17:36??0820420101\lk\src\shopservlets\PocessCartServlet.java

?????文件???????4746??2011-06-22?19:17??0820420101\lk\src\shopservlets\showgoods.java

?????文件???????2481??2011-06-22?17:36??0820420101\lk\src\shopservlets\showorder.java

?????文件???????2457??2011-06-22?19:17??0820420101\lk\src\toolbean\DBBean.java

?????文件???????4065??2011-06-22?17:36??0820420101\lk\src\toolbean\GoodsBean.java

?????文件????????451??2011-06-22?17:36??0820420101\lk\src\toolbean\Mycartbean.java

?????文件???????1638??2011-06-22?17:36??0820420101\lk\src\toolbean\Mycartlsbean.java

?????文件???????1416??2011-06-22?17:36??0820420101\lk\src\toolbean\MyTools.java

............此處省略113個文件信息