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="This is Title";
String content="This is Content Area";
String editer="LaoMao";
String filePath = "";
filePath = request.getRealPath("/")+"test/template.htm";
//out.print(filePath+"br");
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 = request.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());
}
%
(本文来源于图老师网站,更多请访问http://m.tulaoshi.com/webkaifa/)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"author:###author### /td
/tr
tr
td###content###
/td
/tr
/table
/body
/html