一个FreeMarker的简单实例

package com.lch.util; import java.io.BufferedWriter; import java.io.File; import java.io.FileOutputStream; import java.io.FileWriter; import java.io.IOException; import java.io.OutputStreamWriter; import java.io.Writer; import java.util.Locale; import java.util.Map; import javax.servlet.ServletContext; import freemarker.template.Configuration; import freemarker.template.Template; import freemarker.template.TemplateException; public class FreeMarkerFactory { private static FreeMarkerFactory fmf=new FreeMarkerFactory(); private FreeMarkerFactory(){} public static FreeMarkerFactory getIntersten(){ return fmf; } public void init(String ftl,String htmlName,Map map,String fileName,ServletContext sc) throws IOException, TemplateException{ Configuration cf=new Configuration(); cf.setServletContextForTemplateLoading(sc, "/"+fileName); cf.setEncoding(Locale.getDefault(), "utf-8"); //cf.setDefaultEncoding("utf-8"); Template template; template = cf.getTemplate(ftl); template.setEncoding("utf-8"); String path=sc.getRealPath("/"); System.out.println(path);//涔熷氨鏄潤鎬侀〉闈㈢殑鍦板潃D:\apache-tomcat-6.0.16\webapps\test\ BufferedWriter buff= new BufferedWriter(new FileWriter(path+htmlName)); File htmlFile = new File(path+htmlName); Writer out = new BufferedWriter(new OutputStreamWriter( new FileOutputStream(htmlFile),"utf-8")); template.process(map,out); buff.close(); out.flush(); out.close(); }/* private static FreeMarkerFactory fmf=new FreeMarkerFactory(); private FreeMarkerFactory(){} public static FreeMarkerFactory getIntersten(){ return fmf; } private final Log logger = LogFactory.getLog(getClass()); private Configuration freemarker_cfg = null ; 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 ; } } */ }