package?com.direct;
/**
?*?簽到系統
?*?@author?AoTing
?*?@time?2015-10-28
?*/
import?java.io.BufferedReader;
import?java.io.BufferedWriter;
import?java.io.File;
import?java.io.FileReader;
import?java.io.FileWriter;
import?java.io.IOException;
import?java.io.PrintWriter;
import?java.text.ParseException;
import?java.text.SimpleDateFormat;
import?java.util.Date;
import?java.util.Properties;
import?java.util.Set;

import?javax.servlet.ServletException;
import?javax.servlet.annotation.WebServlet;
import?javax.servlet.http.HttpServlet;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.http.HttpServletResponse;

/**
?*?Servlet?implementation?class?SignServlet
?*/
@WebServlet（“/SignServlet“）
public?class?SignServlet?extends?HttpServlet?{
	private?static?final?long?serialVersionUID?=?1L;
	//設置時間標準格式
	SimpleDateFormat?sdf?=?new?SimpleDateFormat（“yyyy-MM-dd?HH:mm:ss“）;
	
	/**
	?*?@see?HttpServlet#doGet（HttpServletRequest?request?HttpServletResponse?response）
	?*/
	protected?void?doGet（HttpServletRequest?request?HttpServletResponse?response）?throws?ServletException?IOException?{
		doPost（request?response）;
	}

	/**
	?*?@see?HttpServlet#doPost（HttpServletRequest?request?HttpServletResponse?response）
	?*/
	protected?void?doPost（HttpServletRequest?request?HttpServletResponse?response）?throws?ServletException?IOException?{
		request.setCharacterEncoding（“UTF-8“）;
		//從request中獲取參數
		String?userName?=?request.getParameter（“userName“）;
		//獲取客戶端IP地址
		String?userIp?=?request.getRemoteAddr（）;
		//獲取服務器時間并轉換成預設格式
		String?time?=?sdf.format（new?Date（））;
		//map?valve值
		String?systemInfo?=?“[IP]：“+userIp?+“?[簽到時間]：“?+?time;
		//存放用戶到map中
		try?{
			saveUserInfo（response?userName?userIp?systemInfo?time）;
		}?catch?（ParseException?e1）?{
			//?TODO?Auto-generated?catch?block
			e1.printStackTrace（）;
		}
		//將簽到情況存入本地txt文件中
		saveInfo（）;
	}
	
	/**
	?*?
	?*?@param?response
	?*?@param?userName?用戶名字
	?*?@param?userIp?用戶IP
	?*?@param?systemInfo?
	?*?@param?time?服務器當前時間
	?*?@throws?IOException
	?*?@throws?ParseException
	?*/
	private?void?saveUserInfo（HttpServletResponse?responseString?userName?String?userIpString?systemInfoString?time）?throws?IOException?ParseException?{
		response.setCharacterEncoding（“utf-8“）;
		response.setContentType（“text/html“）;
		PrintWriter?writer?=?response.getWriter（）;
		//跳轉指定頁面
		//檢測IP是否重復
		if（!checkIp（userIp?systemInfo））{
			writer.write（““）;
			writer.write（““）;
			writer.write（“tle>“）;
			writer.write（“簽到結果“）;
			writer.write（“tle>“）;
			writer.write（““）;
			writer.write（““）;
			writer.write（“同一IP地址只能簽到一次請另選座位！“）;
			writer.write（““）;
			writer.write（““）;
		}
		//IP驗證通過后，檢測本地用戶列表是否有該用戶名，驗證用戶名是否存在
		if（checkIp（userIp?systemInfo）&&!checkUserList（userName））{
			writer.write（““）;
			writer.write（““）;
			writer.write（“tle>“）;
			writer.write（“簽到結果“）;
			writ

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

?????文件????????834??2015-10-26?14:25??SignSystem\.classpath

?????文件???????1043??2015-10-26?14:25??SignSystem\.project

?????文件????????567??2015-10-26?14:25??SignSystem\.settings\.jsdtscope

?????文件????????364??2015-10-26?14:25??SignSystem\.settings\org.eclipse.jdt.core.prefs

?????文件????????482??2015-10-26?14:25??SignSystem\.settings\org.eclipse.wst.common.component

?????文件????????345??2015-10-26?14:25??SignSystem\.settings\org.eclipse.wst.common.project.facet.core.xml

?????文件?????????49??2015-10-26?14:25??SignSystem\.settings\org.eclipse.wst.jsdt.ui.superType.container

?????文件??????????6??2015-10-26?14:25??SignSystem\.settings\org.eclipse.wst.jsdt.ui.superType.name

?????文件???????7711??2015-10-28?16:43??SignSystem\build\classes\com\direct\SignServlet.class

?????文件???????1049??2015-10-28?16:30??SignSystem\build\classes\com\direct\TestClass.class

?????文件?????????28??2015-10-27?17:15??SignSystem\build\classes\com\direct\time.properties

?????文件????????489??2015-10-27?13:33??SignSystem\build\classes\com\direct\UserList.class

?????文件?????????50??2015-10-27?15:15??SignSystem\build\classes\com\direct\UserList.txt

?????文件???????7892??2015-10-28?16:43??SignSystem\src\com\direct\SignServlet.java

?????文件????????765??2015-10-28?16:30??SignSystem\src\com\direct\TestClass.java

?????文件?????????28??2015-10-27?17:15??SignSystem\src\com\direct\time.properties

?????文件????????178??2015-10-20?02:11??SignSystem\src\com\direct\UserList.java

?????文件?????????50??2015-10-27?15:15??SignSystem\src\com\direct\UserList.txt

?????文件?????????39??2015-10-26?14:25??SignSystem\WebContent\meta-INF\MANIFEST.MF

?????文件????????391??2015-10-28?16:28??SignSystem\WebContent\SignView.html

?????文件????????914??2015-10-26?15:07??SignSystem\WebContent\WEB-INF\web.xml

?????目錄??????????0??2015-10-28?16:50??SignSystem\build\classes\com\direct

?????目錄??????????0??2015-10-28?16:50??SignSystem\build\classes\com

?????目錄??????????0??2015-10-28?16:50??SignSystem\src\com\direct

?????目錄??????????0??2015-10-26?14:25??SignSystem\WebContent\WEB-INF\lib

?????目錄??????????0??2015-10-28?16:50??SignSystem\build\classes

?????目錄??????????0??2015-10-28?16:50??SignSystem\src\com

?????目錄??????????0??2015-10-28?16:50??SignSystem\WebContent\meta-INF

?????目錄??????????0??2015-10-28?16:50??SignSystem\WebContent\WEB-INF

?????目錄??????????0??2015-10-28?16:50??SignSystem\.settings

............此處省略7個文件信息