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blog名称:
日志总数:10
评论数量:25
留言数量:0
访问次数:89350
建立时间:2005年3月7日 |
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 [xml]jsp生成静态的hmtl文件
文章收藏
guan1200 发表于 2005/6/2 11:51:14 |
jsp生成静态的hmtl文件
为了减轻服务器压力，将原来的文章管理系统由JSP文件的从数据库中取数据显示改为由jsp生成静态html文件后直接访问html文件。下面是一个简单的示例
1.buildhtml.jsp
<%@ page contentType="text/html; charset=gb2312" import="java.util.*,java.io.*"%>
<%
try{
String title="jsp生成静态html文件";
String content="小样，还搞不定你？";
String editer="hpsoft";
String filePath = "";
filePath = getServletContext().getRealPath("/")+"template.htm";
out.print(filePath);
String templateContent="";
FileInputStream fileinputstream = new FileInputStream(filePath);//读取模块文件
int lenght = fileinputstream.available();
byte bytes[] = new byte[lenght];
fileinputstream.read(bytes);
fileinputstream.close();
templateContent = new String(bytes);
out.print(templateContent);
templateContent=templateContent.replaceAll("###title###",title);
templateContent=templateContent.replaceAll("###content###",content);
templateContent=templateContent.replaceAll("###author###",editer);//替换掉模块中相应的地方
out.print(templateContent);
// 根据时间得文件名
Calendar calendar = Calendar.getInstance();
String fileame = String.valueOf(calendar.getTimeInMillis()) +".html";
fileame = getServletContext().getRealPath("/")+fileame;//生成的html文件保存路径
FileOutputStream fileoutputstream = new FileOutputStream(fileame);//建立文件输出流
byte tag_bytes[] = templateContent.getBytes();
fileoutputstream.write(tag_bytes);
fileoutputstream.close();
}
catch(Exception e){
out.print(e.toString());
}
%>
模板文件
2. template.htm
<html>
<head>
<title>###title###</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<LINK href="../css.css" rel=stylesheet type=text/css>
</head>
<body>
<table width="500" border="0" align="center" cellpadding="0" cellspacing="2">
<tr>
<td align="center">###title###</td>
</tr>
<tr>
<td align="center">作者：###author### </td>
</tr>
<tr>
<td>###content###
</td>
</tr>
</table>
</body>
</html> |
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[xml]XMLHttp 方式实现无刷屏,在IE,FireFox 上测试通过
文章收藏
guan1200 发表于 2005/6/2 11:07:42 |
XMLHttp 方式实现无刷屏,在IE,FireFox 上测试通过
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/tr/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style>
html {background-color:#eeeeee}
body {
background-color:#ccffcc;
font-family:Tahoma,Arial,Helvetica,sans-serif;
font-size:12px;
margin-left:15%;
margin-right:15%;
border:3px groove #006600;
padding:15px
}
h1 {
text-align:left;
font-size:1.5em;
font-weight:bold
}
</style>
<script type="text/javascript">
// global flag
var isIE = false;
// global request and XML document objects
var req;
// retrieve XML document (reusable generic function);
// parameter is URL string (relative or complete) to
// an .xml file whose Content-Type is a valid XML
// type, such as text/xml; XML source must be from
// same domain as HTML file
function loadXMLDoc(url) {
// branch for native XMLHttpRequest object
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
req.onreadystatechange = processReqChange;
req.open("GET", url, true);
req.send(null);
// branch for IE/Windows ActiveX version
} else if (window.ActiveXObject) {
isIE = true;
req = new ActiveXObject("Microsoft.XMLHTTP");
if (req) {
req.onreadystatechange = processReqChange;
req.open("GET", url, true);
req.send();
}
}
}
// handle onreadystatechange event of req object
function processReqChange() {
// only if req shows "loaded"
if (req.readyState == 4) {
// only if "OK"
if (req.status == 200) {
clearTopicList();
buildTopicList();
} else {
alert("There was a problem retrieving the XML data:\n" +
req.statusText);
}
}
}
// invoked by "Category" select element change;
// loads chosen XML document, clears Topics select
// element, loads new items into Topics select element
function loadDoc(evt) {
// equalize W3C/IE event models to get event object
evt = (evt) ? evt : ((window.event) ? window.event : null);
if (evt) {
// equalize W3C/IE models to get event target reference
var elem = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
if (elem) {
try {
if (elem.selectedIndex > 0) {
loadXMLDoc(elem.options[elem.selectedIndex].value);
}
}
catch(e) {
var msg = (typeof e == "string") ? e : ((e.message) ? e.message : "Unknown Error");
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