freemarker Demo 适用于freemarker初学

package com.yuan.action; import java.io.File; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import org.apache.log4j.Logger; import org.apache.struts2.ServletActionContext; import com.opensymphony.xwork2.ActionSupport; import com.yuan.util.FreeMarkerUtil; public class ReleaseNewsAction extends ActionSupport { /** * */ private static final long serialVersionUID = 1L; private static final Logger logger = Logger.getLogger(ReleaseNewsAction.class); private String newsId; private String title; private String author; private String content; private String url; public String getUrl() { return url; } public void setUrl(String url) { this.url = url; } public String getNewsId() { return newsId; } public void setNewsId(String newsId) { this.newsId = newsId; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getAuthor() { return author; } public void setAuthor(String author) { this.author = author; } public String getContent() { return content; } public void setContent(String content) { this.content = content; } public String doRelease() throws Exception { logger.info("Prepare releasing news..."); ReleaseNewsAction news = new ReleaseNewsAction(); news.setNewsId(newsId); news.setTitle(title); news.setAuthor(author); news.setContent(content); Map<String, ReleaseNewsAction> root = new HashMap<String, ReleaseNewsAction>(); root.put("releaseNews", news); String genFilePath = "/news/"; HttpServletRequest request = ServletActionContext.getRequest(); String rootPath = request.getSession().getServletContext().getRealPath( "/"); File file = new File(rootPath + genFilePath); if (file.isDirectory()) { logger.info("存放html文件的文件夹目录是：" + file.getAbsolutePath()); } else { logger.info(rootPath + genFilePath + "不是可用目录"); // file.mkdirs(); } String htmlFileName = news.getNewsId() + ".html"; boolean flag = FreeMarkerUtil.getInstance().genHtmlFile(rootPath, "/news.ftl", root, genFilePath, htmlFileName); news.setUrl(request.getContextPath() + genFilePath + htmlFileName); if (flag == true) { logger.info("生成文件：" + genFilePath + htmlFileName + "成功！"); } else { return ERROR; } request.setAttribute("news", news); return SUCCESS; } }