用JSP產生靜態頁面

最後更新：2018-12-08 來源：互聯網

上載者：User

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主要原理請參考http://blog.hunan2s.com/article.asp?id=233

經過一翻調試，成功了。。呵

附上源碼。。

JDK 1.5 +ECLIPSE +TOMCAT 5.0.28 + MYSQL 5.0

資料庫TEST　，表名news
欄位：　id int 自動成長　, 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從此檔案輸入資料流中讀取的位元組數。

byte bytes[] = new byte[lenght];

fileinputstream.read(bytes); //read(byte[] b) 從此輸入資料流中將最多 b.length 個位元組的資料讀入一個位元組數組中。

fileinputstream.close();
//templateContent = new String(bytes);
String title;
String content;
String author;
while(Rs.next())
{
templateContent = new String(bytes);//如果不用這句，則替換一次之後，templateContent中就沒有#**#標誌了。所以要重建
title = Rs.getString("Title");
content = Rs.getString("Content");
author = Rs.getString("Author");
out.println(title+"********"+content+"****"+author);
out.print("以下是模板內容：<br>"+templateContent+"<br> 以下是置換以後的html內容<br><hr>");
templateContent=templateContent.replaceAll("#title#",title);
templateContent=templateContent.replaceAll("#author#",author);//替換掉模組中相應的地方
templateContent=templateContent.replaceAll("#content#",content);

// 根據時間得檔案名稱
Calendar calendar = Calendar.getInstance();
String fileame = String.valueOf(calendar.getTimeInMillis()) +".html";
fileame = request.getRealPath("/")+"Html/"+fileame;//產生的html檔案儲存路徑

out.print(templateContent);
FileOutputStream fileoutputstream = new FileOutputStream(fileame);//建立檔案輸出資料流
byte tag_bytes[] = templateContent.getBytes();
fileoutputstream.write(tag_bytes);
fileoutputstream.close();

}

if(conn!=null)
{
conn.close();
}
if(stmt!=null)
{
stmt.close();
}

//資料庫連接檔案

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());

}
*/
}

//　模板檔案

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>

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