Freemarker生成静态HTML页面范例

生成新闻的静态文件时用到的代码.仅供参考.请根据实际情况修改.

模板: 
< html > 
< head > 
   < title > 查看文章: $ {newsitem.title} </ title >
</ head >
< body >
< table width = " 100% " border = " 0 " cellpadding = " 0 " cellspacing = " 0 " bgcolor = " #FFFFFF " >
< tr >
< td >
< table width = " 95% " border = " 0 " align = " center " cellpadding = " 2 " cellspacing = " 6 " >
< tr >
< td height = " 10 " align = " left " colspan = 2 ></ td >
</ tr >
< tr >
< td align = " left " width = " 538 " > 
  < strong > $ {newsitem.title} </ strong > ( $ {newsitem.addtime} )
</ td >
< td align = " right " >
< a href = " index.jsp " > 返回 </ a >
& nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp;
</ td >
</ tr >
< tr >
< td align = " left " valign = top colspan = 2 >
< hr align = " left " width = " 95% " size = " 1 " noshade color = " #cc0000 " >
</ td >
</ tr >
< tr > 
    < td colspan = 2 > $ {newsitem.showContent} </ td >
</ tr >
</ table >
< br >
</ td >
</ tr >
</ table >
</ body >
</ html >

代码:

import java.io. * ;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import freemarker.template. * ;

 

public class FreeMarkerTest
  { 
 
private final Log logger = LogFactory.getLog(getClass()); 
 
private Configuration freemarker_cfg = null ; 
 
 
 
public static void main(String[] args)
  { 
// @todo 自己的一个类 
  NewsItem aItem = null ; 

// @todo 装入新闻 
// NewsItem = loadNewsItem(1); 
 
FreeMarkerTest test = new FreeMarkerTest(); 

Map root = new HashMap();
root.put( " newsitem " , aItem);

String sGeneFilePath = " /tpxw/ " ;

String sFileName = " 1.htm " ;

boolean bOK = test.geneHtmlFile( " /tpxw/view.ftl " ,root, sGeneFilePath,sFileName);

}



protected Configuration getFreeMarkerCFG()
{
if ( null == freemarker_cfg)
{
// Initialize the FreeMarker configuration;
// - Create a configuration instance
freemarker_cfg = new Configuration();

// - FreeMarker支持多种模板装载方式,可以查看API文档,都很简单:路径,根据Servlet上下文,classpath等等

// htmlskin是放在classpath下的一个目录
freemarker_cfg.setClassForTemplateLoading( this .getClass(), " /htmlskin " );
}

return freemarker_cfg;
}


public boolean geneHtmlFile(String templateFileName,Map propMap, String htmlFilePath,String htmlFileName )
{
// @todo 从配置中取得要静态文件存放的根路径:需要改为自己的属性类调用
String sRootDir = " e:/webtest/htmlfile " ;

try
{
Template t = getFreeMarkerCFG().getTemplate(templateFileName);

// 如果根路径存在,则递归创建子目录
creatDirs(sRootDir,htmlFilePath);

File afile = new File(sRootDir + " / " + htmlFilePath + " / " + htmlFileName);

Writer out = new BufferedWriter( new OutputStreamWriter( new FileOutputStream(afile)));

t.process(propMap, out);
}
catch (TemplateException e)
{
logger.error( " Error while processing FreeMarker template " + templateFileName,e);
return false ;
}
catch (IOException e)
{
logger.error( " Error while generate Static Html File " + htmlFileName,e);
return false ;
}

return true ;
}




public static boolean creatDirs(String aParentDir, String aSubDir)
{
File aFile = new File(aParentDir);
if (aFile.exists())
{
File aSubFile = new File(aParentDir + aSubDir);
if ( ! aSubFile.exists())
{
return aSubFile.mkdirs();
}
else
{
return true ;
}
}
else
{
return false ;
}
}
}