用JSP生成静态页面

2022-07-15 80酷酷网 80kuku.com

　　js|静态|页面

主要原理请参考http://blog.hunan2s.com/article.asp?id=233
经过一翻调试，成功了。。呵
附上源码。。

JDK 1.5 +ECLIPSE +TOMCAT 5.0.28 + MYSQL 5.0
数据库TEST　，表名news
字段：　id int 自动增长　, Title varchar(20) , Content varchar(200) , Author varchar(10)
makeFile.jsp
<%
Connection conn = DBconn.getConnection();
Statement stmt = conn.createStatement();
ResultSet Rs = stmt.executeQuery("select * from news");
System.out.println("success");
%>
<%
String filePath = request.getRealPath("/")+"template.htm";
System.out.println(filePath);
String templateContent;
FileInputStream fileinputstream = new FileInputStream(filePath);
int lenght = fileinputstream.available(); //available() 返回可以不受阻塞地从此文件输入流中读取的字节数。
byte bytes[] = new byte[lenght];
fileinputstream.read(bytes); //read(byte[] b) 从此输入流中将最多 b.length 个字节的数据读入一个字节数组中。
fileinputstream.close();
//templateContent = new String(bytes);
String title;
String content;
String author;
while(Rs.next())
{
templateContent = new String(bytes);//如果不用这句，则替换一次之后，templateContent中就没有#**#标志了。所以要重新生成
title = Rs.getString("Title");
content = Rs.getString("Content");
author = Rs.getString("Author");
out.println(title+"********"+content+"****"+author);
out.print("以下是模板内容：
"+templateContent+"
以下是置换以后的html内容
<hr>");
templateContent=templateContent.replaceAll("#title#",title);
templateContent=templateContent.replaceAll("#author#",author);//替换掉模块中相应的地方
templateContent=templateContent.replaceAll("#content#",content);
// 根据时间得文件名
Calendar calendar = Calendar.getInstance();
String fileame = String.valueOf(calendar.getTimeInMillis()) +".html";
fileame = request.getRealPath("/")+"Html/"+fileame;//生成的html文件保存路径

out.print(templateContent);
FileOutputStream fileoutputstream = new FileOutputStream(fileame);//建立文件输出流
byte tag_bytes[] = templateContent.getBytes();
fileoutputstream.write(tag_bytes);
fileoutputstream.close();
}
if(conn!=null)
    {
        conn.close();
    }
    if(stmt!=null)
    {
        stmt.close();
    }

%>
//数据库连接文件
import java.sql.*;
public class DBconn {
    public DBconn() {
        // TODO Auto-generated constructor stub
    }
    public static Connection getConnection()
    {
        Connection conn = null;
        try {
            Class.forName("org.gjt.mm.mysql.Driver");
            conn = DriverManager.getConnection("jdbc:mysql://" + "localhost" + "/" + "test" +
        "?useUnicode=true&characterEncoding=GB2312","root","111111");
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
        return conn;
        }
    /*public static void main(String[] args) throws Exception
    {
        Connection con=getConnection();
        System.out.println(con.isClosed());
    }
*/
}

//　模板文件
template.htm
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>#title#</title>
</head>
<body>
<table width="380" height="107" border="0" cellpadding="0" cellspacing="1" bgcolor="#FFCC99">
<tr>
    <td height="16" bgcolor="#FFCC99"><div align="center">#title#</div></td>
</tr>
<tr>
    <td bgcolor="#FFFFFF">#content#</td>
</tr>
<tr>
    <td height="13" align="right" bgcolor="#FFFFFF">#author#</td>
</tr>
</table>
</body>
</html>