简单网页聊天室

于 2014-01-08 10:08:55 发布
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分类专栏： javaWeb
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本文链接：https://blog.csdn.net/tobesili2012/article/details/17993599
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最近在做一个java网络开发的一个小练习，简易网页聊天室：

1）是用oracle做数据库的，存有两张表

    a. chatuser表，保存登陆用户的

       SQL> desc chatuser
Name       Type         Nullable Default Comments
---------- ------------ -------- ------- --------
USERNAME   VARCHAR2(25)                          
LOGINTIME  TIMESTAMP(6) Y                        
LOGOFFTIME TIMESTAMP(6) Y                        
LOGINSTATE NUMBER(5)    Y

 

     b.UserChatContent表，保存聊天记录的

       SQL> desc UserChatContent
Name        Type           Nullable Default Comments
----------- -------------- -------- ------- --------
USERNAME    VARCHAR2(25)                            
CHATCONTENT VARCHAR2(1000) Y                        
SPEAKTIME   TIMESTAMP(6)   Y

 

jdbc工具包用了董工封装的dataSource

 

2）java类：

        a.entity：（5个）

             po类：ChatUser,UserChatContent   (对应数据库两张表)

             vo类：ChatUserVo,UserChatContentVo  (继承po类)

             其他：UserName  （用来查询数据库表时，只查用户名用的）

        b.logic：（2个）

              Checkpolice  (用来定时检查在线用户是否超时没操作的实现runnable借口的线程类)

              DaoChat      (处理与数据库的一系列操作，如：查询在线用户，登录，退出，查聊天记录等)

 

3）jsp页面：（5 个,我是放在意个chat3的文件夹里）

        a. login.jsp    登录页面，也处理重复登录，退出事务

        b. index.jsp    主页面，用frame框架，嵌套了聊天记录，在线用户，发言三大窗口

        c. content.jsp   显示当天聊天记录

        d. users.jsp     显示在线用户

        e. sayWordBox.jsp    发言窗口，退出按钮...

 

 

主要代码：

 

java类：

 

            entity类  5个       

 

-----------------ChatUser 类----------------------

 

package com.entity.po;

import java.sql.Timestamp;

public class ChatUser {
 private String userName;
 private Timestamp loginTime;
 private Timestamp logoffTime;
 private Integer loginState;//1为登录，0为未登录
 
 public ChatUser() {
  super();
 }
 public ChatUser(String userName) {
  super();
  this.userName = userName;
  
 }
 public ChatUser(String userName, Timestamp loginTime) {
  super();
  this.userName = userName;
  this.loginTime = loginTime;
 }
 public ChatUser(String userName, Timestamp loginTime, Timestamp logoffTime,
   Integer loginState) {
  super();
  this.userName = userName;
  this.loginTime = loginTime;
  this.logoffTime = logoffTime;
  this.loginState = loginState;
 }
 public String getUserName() {
  return userName;
 }
 public void setUserName(String userName) {
  this.userName = userName;
 }
 public Timestamp getLoginTime() {
  return loginTime;
 }
 public void setLoginTime(Timestamp loginTime) {
  this.loginTime = loginTime;
 }
 public Timestamp getLogoffTime() {
  return logoffTime;
 }
 public void setLogoffTime(Timestamp logoffTime) {
  this.logoffTime = logoffTime;
 }
 public Integer getLoginState() {
  return loginState;
 }
 public void setLoginState(Integer loginState) {
  this.loginState = loginState;
 }

}
------------------------end-------------------------

 

-----------------UserChatContent 类----------------------

 

package com.entity.po;

import java.sql.Timestamp;

public class UserChatContent {
 private String userName;
 private String chatContent;
 private Timestamp speakTime;
 
 public UserChatContent() {
  super();
 }
 
 public UserChatContent(String userName, String chatContent) {
  super();
  this.userName = userName;
  this.chatContent = chatContent;
  this.speakTime = new Timestamp( System.currentTimeMillis() );
 }

 public UserChatContent(String userName, String chatContent, Timestamp speakTime) {
  super();
  this.userName = userName;
  this.chatContent = chatContent;
  this.speakTime = speakTime;
 }
 public String getUserName() {
  return userName;
 }
 public void setUserName(String userName) {
  this.userName = userName;
 }
 public String getChatContent() {
  return chatContent;
 }
 public void setChatContent(String chatContent) {
  this.chatContent = chatContent;
 }
 public Timestamp getSpeakTime() {
  return speakTime;
 }
 public void setSpeakTime(Timestamp speakTime) {
  this.speakTime = speakTime;
 }

}

------------------------end-------------------------

 

-----------------ChatUserVo 类----------------------

 

package com.entity.vo;

import java.sql.Timestamp;

import com.entity.po.ChatUser;

public class ChatUserVo extends ChatUser{

 public ChatUserVo() {
  super();
  // TODO Auto-generated constructor stub
 }

 public ChatUserVo(String userName, Timestamp loginTime,
   Timestamp logoffTime, Integer loginState) {
  super(userName, loginTime, logoffTime, loginState);
  // TODO Auto-generated constructor stub
 }

 public ChatUserVo(String userName, Timestamp loginTime) {
  super(userName, loginTime);
  // TODO Auto-generated constructor stub
 }

 public ChatUserVo(String userName) {
  super(userName);
  // TODO Auto-generated constructor stub
 }

}

------------------------end-------------------------

 

 

-----------------UserChatContentVo 类----------------------

 

package com.entity.vo;

import java.sql.Timestamp;

import com.entity.po.UserChatContent;

public class UserChatContentVo extends UserChatContent{

 public UserChatContentVo() {
  super();
  // TODO Auto-generated constructor stub
 }

 public UserChatContentVo(String userName, String chatContent, Timestamp speakTime) {
  super(userName, chatContent, speakTime);
  // TODO Auto-generated constructor stub
 }

 public UserChatContentVo(String userName, String chatContent) {
  super(userName, chatContent);
  // TODO Auto-generated constructor stub
 }

}

------------------------end-------------------------

 

 

-----------------UserChatContent 类----------------------

 

 package com.entity;

public class UserName {
 private String userName;
 public UserName() {
  super();
 }
 public UserName(String userName) {
  super();
  this.userName = userName;
 }
 public String getUserName() {
  return userName;
 }
 public void setUserName(String userName) {
  this.userName = userName;
 }

}

------------------------end-------------------------

 

 

         logic类   2个

 

-----------------DaoChat 类----------------------

 

package com.logic;

import java.sql.Timestamp;
import java.util.List;

import com.entity.UserName;
import com.entity.po.ChatUser;
import com.entity.po.UserChatContent;
import com.entity.vo.ChatUserVo;
import com.entity.vo.UserChatContentVo;
import com.sql.RemoteExecute;

public class DaoChat {
 
 
 @SuppressWarnings("unchecked")
 public boolean islogin(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return false;
  }
  RemoteExecute remoteExecute = new RemoteExecute();
  String sql = "select userName from ChatUser where userName = '" + userName + "' and loginState = 1";
  List<UserName> list = (List<UserName>)remoteExecute.query(sql, null, UserName.class);
  closeRe(remoteExecute);
  if( list != null && list.size() != 0){
   return true;
  }
  return false;
  
 }
 
 
 @SuppressWarnings("unchecked")
 private boolean islogin(String userName,RemoteExecute remoteExecute){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return false;
  }
  String sql = "select userName from ChatUser where userName = '" + userName + "' and loginState = 1";
  List<UserName> list = (List<UserName>)remoteExecute.query(sql, null, UserName.class);
  if( list != null && list.size() != 0){
   return true;
  }
  return false;
  
 }
 
 
 @SuppressWarnings({ "unchecked", "deprecation" })
 public boolean login(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return false;
  }
  RemoteExecute remoteExecute = new RemoteExecute();
  String sql = "select * from ChatUser where userName = '" + userName + "'";//检查用户名是否已经登录过...如果登录过，则判断是否在线
  List<ChatUserVo> list = (List<ChatUserVo>)remoteExecute.query(sql, null, ChatUserVo.class);
  
  if( list != null && list.size() != 0){//已经登录过...
   if( list.get(0).getLoginState() == 1 ){//在线
    //System.out.println("用户列的登陆情况：" + list.get(0).getLoginState());
    closeRe(remoteExecute);
    return false;
   }else{//没在线
    Timestamp timestamp = new Timestamp( System.currentTimeMillis() );
    //(timestamp '2011-9-10 14:01:00')
    sql = "update ChatUser set loginState = 1, loginTime = (timestamp '" + timestamp.toLocaleString() + "') where userName = '" + userName + "'";
    remoteExecute.excute(sql, null);
    closeRe(remoteExecute);
    return true;
    
   }//else
  }else{//没登录过的，进行登录，并注册
   ChatUserVo user = new ChatUserVo();
   user.setUserName(userName);
   user.setLoginTime(new Timestamp( System.currentTimeMillis() ));
   user.setLoginState(1);
   remoteExecute.save(user, ChatUser.class, "userName");
   closeRe(remoteExecute);
   return true;
  }//else
  
 }//login
 
 
 private void closeRe(RemoteExecute remoteExecute) {
  if( remoteExecute == null )return;
  remoteExecute.commit();
  remoteExecute.close();
  remoteExecute = null;
 }
 
 
 public void checkLoginUsers() {
  CheckPolice checkPolice = new CheckPolice();
  Thread cheThread = new Thread(checkPolice,"checkPolice");
  cheThread.start();
 }
 
 
 
 @SuppressWarnings("deprecation")
 public boolean logoff(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return false;
  }
  RemoteExecute remoteExecute = new RemoteExecute();
  Timestamp timestamp = new Timestamp( System.currentTimeMillis() );
  String sql = "update ChatUser set loginState = 0, logoffTime = (timestamp '" + timestamp.toLocaleString() + "') where userName = '" + userName + "'";
  int i = remoteExecute.excuteUpdate(sql, null);
  closeRe(remoteExecute);
  if( i >= 1 )
   return true;
  return false;
  
 }
 public boolean speak(String userName,String speakContent){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return false;
  }
  RemoteExecute remoteExecute = new RemoteExecute();
  
  if( !this.islogin(userName, remoteExecute) ){
   return false;
  }
  
  UserChatContentVo userChatContentVo = new UserChatContentVo();
  userChatContentVo.setUserName(userName);
  userChatContentVo.setSpeakTime(new Timestamp( System.currentTimeMillis() ));
  userChatContentVo.setChatContent(speakContent);
  
  remoteExecute.save(userChatContentVo, UserChatContent.class, "userName");
  closeRe(remoteExecute);
  return true;
  
 }
 
 
 @SuppressWarnings({ "unchecked", "deprecation" })
 public List<UserChatContentVo> getAllSpeakContentList(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return null;
  }
  String sql = "select * from UserChatContent order by speakTime";
  RemoteExecute remoteExecute = new RemoteExecute();
  if( !this.islogin(userName, remoteExecute) ){
   return null;
  }
  List<UserChatContentVo> slist = (List<UserChatContentVo>)remoteExecute.query(sql, null, UserChatContentVo.class);
  closeRe(remoteExecute);
  return slist;
  
 }
 
 
 
 @SuppressWarnings({ "unchecked", "deprecation" })
 public List<UserChatContentVo> getTodaySpeakContentList(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return null;
  }
  RemoteExecute remoteExecute = new RemoteExecute();
  if( !this.islogin(userName, remoteExecute) ){
   return null;
  }
  Timestamp nowt = new Timestamp( System.currentTimeMillis() );
  int year = nowt.getYear() + 1900;
  int month = nowt.getMonth() + 1;
  int day = nowt.getDate();
  String nowtString = String.valueOf(year) + String.valueOf(month) + String.valueOf(day);
  //System.out.println(nowtString);
  String sql = "select * from UserChatContent where to_number(extract(YEAR from speakTime)||extract(MONTH from speakTime)||extract(DAY from speakTime)) = '" + nowtString + "' order by speakTime";
  List<UserChatContentVo> slist = (List<UserChatContentVo>)remoteExecute.query(sql, null, UserChatContentVo.class);
  closeRe(remoteExecute);
  
  return slist;
  
 }
 
 
 @SuppressWarnings("unchecked")
 public List<ChatUserVo> getAllUserList(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return null;
  }
  String sql = "select * from ChatUser order by LoginTime";
  RemoteExecute remoteExecute = new RemoteExecute();
  if( !this.islogin(userName, remoteExecute) ){
   return null;
  }
  List<ChatUserVo> list = (List<ChatUserVo>)remoteExecute.query(sql, null, ChatUserVo.class);
  closeRe(remoteExecute);
  return list;
  
 }
 
 
 @SuppressWarnings("unchecked")
 public List<UserName> getUserListOfLogin(String userName){
  if( userName == null || "".equals(userName)){
   System.out.println("你传的参数不符合条件...");
   return null;
  }
  String sql = "select userName from ChatUser where loginState = 1 order by LoginTime";
  RemoteExecute remoteExecute = new RemoteExecute();
  if( !this.islogin(userName, remoteExecute) ){
   return null;
  }
  List<UserName> list = (List<UserName>)remoteExecute.query(sql, null, UserName.class);
  closeRe(remoteExecute);
  return list;
  
 }
}

------------------------end-------------------------

 

 

 

-----------------CheckPolice 类----------------------

 

package com.logic;

import java.sql.Timestamp;
import java.util.List;

import com.entity.UserName;
import com.sql.RemoteExecute;


public class CheckPolice implements Runnable{

 @SuppressWarnings("deprecation")
 public void run() {
  Timestamp nowt = null;
  try {
   nowt = new Timestamp( System.currentTimeMillis() );
   String timeString = String.valueOf(nowt.getYear() + 1900)
   + String.valueOf(nowt.getMonth() + 1)
   + String.valueOf(nowt.getDate())
   + String.valueOf(nowt.getHours()) + nowt.getMinutes();
   nowt = null;
   System.out.println("我是警察..." + timeString);
   Thread.sleep( 100000 );
   System.out.println("警察开始查牌...");
   this.checkChatUser(timeString);
   timeString = null;
   this.run();
  } catch (InterruptedException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
 }//run
 
 
 
 @SuppressWarnings({ "unchecked", "deprecation" })
 public void checkChatUser(String timeString){
  try {
   Integer.parseInt(timeString);
  } catch (NumberFormatException e) {
   System.out.println("你传的参数不符合条件...");
   return;
  }
  RemoteExecute remoteExecute = new RemoteExecute();
   String sqlForChat = "select distinct userName from UserChatContent " +
     "where to_number(extract(YEAR from speakTime)||" +
     "extract(MONTH from speakTime)||" +
     "extract(DAY from speakTime)||" +
     "extract(hour from speakTime)||" +
     "extract(minute from speakTime)) >= " + timeString;
   
   String sqlForUser = "select userName from ChatUser where loginState = 1";
   
   List<UserName> list = (List<UserName>)remoteExecute.query(//获得十分钟内有说话的用户的用户名
             sqlForChat, null, UserName.class);
   List<UserName> userList = (List<UserName>)remoteExecute.query(//获得登录用户的用户名
             sqlForUser, null, UserName.class);
   boolean flag = true;
   String sqlForLoginoff = null;
   Timestamp timestamp = new Timestamp( System.currentTimeMillis() );
   for(UserName user:userList){//把超出规定时间，没有说话的用户，退出登录
    flag = true;//先假设用户已经超出时间了
    for(UserName uccv:list){
     if( user.getUserName().equals( uccv.getUserName() ) ){//没有超出时间的用户
      flag = false;
      break;
     }
    }//for
    if( flag == true ){//超出时间的用户退出登录...
     sqlForLoginoff = "update ChatUser set loginState = 0, logoffTime = (timestamp '" + timestamp.toLocaleString() + "') where userName = '" + user.getUserName() + "'";
     remoteExecute.excuteUpdate(sqlForLoginoff, null);
    }//if
   }//for
   remoteExecute.commit();
   remoteExecute.close();
   remoteExecute = null;
  
 }//checkChatUser
 

}

------------------------end-------------------------

 

 

 

jsp 页面  5 个

 

-----------------login.jsp 页面----------------------

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.logic.DaoChat"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 if( "false".equals( request.getParameter("state") ) )
  out.println("<font color='red' >用户名已经登陆...</font>");
  //out.println("yy"+request.getParameter("logState"));
 if( "logoff".equals(request.getParameter("logState")) ){
  String userName = null;
   if( session.getAttribute("userName") != null ){
    DaoChat daoChat = new DaoChat();
    userName = session.getAttribute("userName").toString().trim();
    
    daoChat.logoff(userName);
    session.removeAttribute("userName");
    
    out.println("<font color='red' >退出成功...</font>");
   }//if
  
  userName = null;
 }//if

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>聊天室登录...</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>&nbsp;
    <br>
    <form action="chat3/index.jsp" method="post">
      用户名：<input type="text" name="userName"/><input type="submit" value="登录..." />
   </form>
  </body>
</html>

------------------------end-------------------------

 

 

 

-----------------index.jsp 页面----------------------

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.logic.DaoChat"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

 String userName = null;
 DaoChat daoChat =new DaoChat();
 if( application.getAttribute("checkPolice") == null ){
  daoChat.checkLoginUsers();
  application.setAttribute("checkPolice","true");
 }
 if( session.getAttribute("userName") == null ){
  if( request.getParameter("userName") != null )
   userName = request.getParameter("userName").trim();
  if( userName == null || "".equals(userName)) userName = "无名" + System.currentTimeMillis();
  userName = userName.trim();
  boolean test = daoChat.login(userName);
  if( !test ){//已经在线
   //System.out.println(test);
   //System.out.println(!test);
   response.sendRedirect("login.jsp?state=false");
   return;
  }
  session.setAttribute("userName",userName);
 }else if( !daoChat.islogin(userName) ){
  session.removeAttribute("userName");
  response.sendRedirect("login.jsp");
 }


%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'index.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
   
   <frameset rows="80%,*">
  <frameset cols="80%,*">
   <frame src="/testWeb/chat3/content.jsp" />
   <frame src="/testWeb/chat3/users.jsp" />
  </frameset>
  <frame src="/testWeb/chat3/sayWordBox.jsp" />
 </frameset>
 
</html>

 

------------------------end-------------------------

 

 

-----------------content.jsp 页面----------------------

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.entity.vo.UserChatContentVo"%>
<%@page import="com.logic.DaoChat"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 
 DaoChat daoChat =new DaoChat();
 String chatContent = "";
 List<UserChatContentVo> userChatContentList = null;
 String userName = null;
 if( session.getAttribute("userName") == null ){
  ;
 }else{
  userName = session.getAttribute("userName").toString().trim();
 }
 userChatContentList = daoChat.getTodaySpeakContentList(userName);
 if( userChatContentList != null ){
  for( UserChatContentVo uc:userChatContentList){
   chatContent = chatContent + uc.getUserName() + "--"
         + uc.getSpeakTime().toLocaleString()
         + " 说：" + uc.getChatContent() + "\n";
  }
 }else{
   out.println("<font color='red' >你过久没有操作，导致登陆过时失效...请重新登陆</font>");
   session.removeAttribute("userName");
   return;
 }
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'content.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <Meta http-equiv="Refresh" Content="2; Url=content.jsp">
 <!--javascript:top.location.href='login.jsp';
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
   <textarea name="chatContent" rows="30" cols="108" ><%=chatContent %></textarea>
  </body>
</html>

------------------------end-------------------------

 

 

 

-----------------users.jsp  页面----------------------

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.logic.DaoChat"%>
<%@page import="com.entity.UserName"%>
<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 
 DaoChat daoChat =new DaoChat(); 
 String users = "";
 List<UserName> userList = null;
 String userName = null;
 if( session.getAttribute("userName") == null ){
  return;
 }else{
  userName = session.getAttribute("userName").toString().trim();
 }
 userList = daoChat.getUserListOfLogin(userName);  
 if( userList != null ){
  for( UserName us:userList){
   users = users + us.getUserName() + "\n";
  }  
 }else{
   out.println("<font color='red' >你过久没有操作，导致登陆过时失效...请重新登陆</font>");
   session.removeAttribute("userName");
   return;
 }  

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>users--3</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <Meta http-equiv="Refresh" Content="2; Url=users.jsp">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    <textarea name="users" rows="30" cols="18" ><%=users %></textarea>
  </body>
</html>

 

------------------------end-------------------------

 

 

 

-----------------sayWordBox.jsp  页面----------------------

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@page import="com.logic.DaoChat"%>

<%
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 
 String userName = null;
 String userContent = "";
 DaoChat daoChat =new DaoChat();
 
 userContent = request.getParameter("userContent");
 if( session.getAttribute("userName") == null ){
  return;
 }else{
  userName = session.getAttribute("userName").toString();
 }
 userName = userName.trim();
 if( userContent != null && !"".equals( userContent ) ){//建立一个新的聊天记录对象
  boolean test = daoChat.speak(userName,userContent);
  if( test == false ){
   out.println("<font color='red' >你过久没有操作，导致登陆过时失效...请重新登陆</font>");
   session.removeAttribute("userName");
   return;
  } 
 }//if 
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'sayWordBox.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

  </head>
 
  <body>
    <br>
     <form action="/testWeb/chat3/sayWordBox.jsp" method="post">
     <input name="userContent" type="text" size="108" style="width:700px;font-size:32px" />
     <input name="subm" type="submit" value="发言" />
    </form>
    <form name="logoff" action="chat3/login.jsp" method="post" target="_top">
     <input name="logState" type="hidden" value="logoff"  />
     欢迎 <%=userName %> 来到SeeHope聊天室...<input type="submit" value="退出" />
   </form>
  </body>
</html>

 

 

------------------------end-------------------------

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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