public class VelocityHelper {
public VelocityEngine parseTemplate(String templateFilePath) throws Exception{
VelocityEngine ve = new VelocityEngine();
Properties properties = new Properties();
properties.setProperty(ve.FILE_RESOURCE_LOADER_PATH,templateFilePath);
properties.setProperty(Velocity.ENCODING_DEFAULT, "utf-8");
properties.setProperty(Velocity.INPUT_ENCODING, "utf-8");
properties.setProperty(Velocity.OUTPUT_ENCODING, "utf-8");
ve.setProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM, new NullLogChute());
ve.init(properties);
return ve;
}
}
/**
* 通过velocity 模板生成静态HTML 文件
* @param htmlName 文件名称
* @param toFilePath 模块文件位置 生成路径为 static /html/news/xxx.html
* @param vmTemPath velocity模板文件路径
* @param map 集合
* @param contextName 模板循环名称
*/
public void createHtmlByVelocity(String htmlName,String toFilePath,String tmpName,
String vmTemPath,Map<String,Object> params,String contextName){
try {
VelocityEngine ve = velocityHelper.parseTemplate(vmTemPath);
fileUploadHelper.createFolder(toFilePath);
String filePath=toFilePath+File.separator+htmlName+".html";
FileOutputStream fos = new FileOutputStream(filePath);
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(
fos, Const.EncodingUTF8));
Template velocity_template =ve.getTemplate(tmpName);
VelocityContext context = new VelocityContext();
context.put(contextName, params);
velocity_template.merge(context,writer );
writer.close();
} catch (Exception e) {
log.error("文件路径失败!",e);
throw new SinotransException("文件路径失败!", e);
}
}
调用处代码
String vmTemPath = request.getSession().getServletContext().getRealPath("/")+ "/WEB-INF/velocity/";
String tmpName="news.vm";
Map<String,Object> params = new HashMap<String,Object>();
params.put("title", title);
params.put("context", context);
params.put("pathList", pathList);
params.put("date", TimeUtil.formatDate(new Date(), "yyyy-MM-dd"));
params.put("newsId", fileId);
exportFileUtil.createHtmlByVelocity(fileId, fileUploadHelper.getHtmlPath()+File.separator+"news", tmpName, vmTemPath, params, "newsMap");
时间长了记不住 留下来当个小笔记。