简易聊天室
<%@ page language="java" import="java.util.*" pageEncoding="gbk"%>
<html>
<head>
<title>聊天室</title>
</head>
<body onload="scroll(0,99999)">
<%
//设置乱码
request.setCharacterEncoding("gbk");
//取得发送的聊天信息
String message = request.getParameter("message");
String msg = (String) application.getAttribute("msg");
//如果取不到,说明是第一次,直接把得到的信息放入容器中即可。
if (message != null) {
if (msg == null) {
//向这个容器中装入数据
application.setAttribute("msg", message);
} else {
msg = msg + "<br>" + message;
application.setAttribute("msg", msg);
}
}
out.println(msg);
%>
<form method="post" action="" name="form">
<hr color="green" />
<br> 欢迎进入聊天室 <br> <br> <br>
请说话: <br>
<textarea cols="35" rows="6" name="message"></textarea>
<input type="submit" value="提交" name="button">
</form>
</body>
</html>