项目中用到了Velocity，要生成一些XML文件，template文件（*.vm)也打包在Jar里。Velocity如何加载呢？分如下几个步。
设置Velocity Property
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ve = new VelocityEngine(); ve.setProperty(RuntimeConstants.RESOURCE_LOADER, "string"); ve.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName()); ve.init(); |
读template文件到StringBuilder
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private static StringBuilder getTemplateContent(String templateName) { InputStream inStream = A.class.getResourceAsStream(templateName); StringBuilder builder = new StringBuilder(); BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inStream)); String line; try { while ((line = bufferedReader.readLine()) != null) { builder.append(line).append("\n"); } } catch (IOException e) { logger.debug(StackTracePrinter.printToStr(e)); } finally { if (inStream != null){ try { inStream.close(); } catch (IOException e) { logger.debug(StackTracePrinter.printToStr(e)); } } } return builder; } |
加载StringBuilder里的模板
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private static Template getVelocityTemplate(String templateName) { StringBuilder builder = getTemplateContent(templateName); StringResourceRepository repo = StringResourceLoader.getRepository(); repo.putStringResource(templateName, builder.toString()); Template t = ve.getTemplate(templateName); return t; } |
大功造成，用返回的Template对象加Context吧。
