protected void mergeFileTemplate(Template pTemplate, Context pContext, Writer pWriter)
throws MergeTemplateException {
Properties props = WebMacroHelper.getDefaultProperties();
props.putAll(this.properties);
props.setProperty("TemplateEncoding", pTemplate.getInputEncoding());
String path = pTemplate.getResource();
if (log.isDebugEnabled()) {
log.debug("模板文件: \"" + path + "\" 采用WebMacro引擎进行合并.");
log.debug("模板文件: \"" + path + "\" 输入编码方式是：" + pTemplate.getInputEncoding());
}
/**
* @FIXME 由于WebMacro没有提供运行时，设置模板编码方式，所以要求每次实例化Engine,这样性能有些影响，希望以后版本
* WebMacro会提供该方法。不过好在，是单机版本的，性能问题不大.
*/
WM wm = WebMacroHelper.getWMEngine(props);
org.webmacro.Context c = new org.webmacro.Context(wm.getBroker());
Map params = pContext.getParameters();
for (Iterator i = params.keySet().iterator(); i.hasNext(); ) {
String key = (String) i.next();
Object value = params.get(key);
c.put(key, value);
}
org.webmacro.Template t = null;
try {
t = wm.getTemplate(pTemplate.getResource());
} catch (ResourceException e) {
final String MSG = "合并模板文件 \"" + path + "\" 失败!" + e.getMessage();
if (log.isErrorEnabled()) {
log.error(MSG, e);
}
throw new MergeTemplateException(MSG, e);
}
String result = null;
try {
// result = t.evaluateAsString(c);
// } catch (PropertyException e) {
} catch (Exception e) {
final String MSG = "合并模板文件 \"" + path + "\" 失败!" + e.getMessage();
if (log.isErrorEnabled()) {
log.error(MSG, e);
}
throw new MergeTemplateException(MSG, e);
}
try {
pWriter.write(result);
} catch (IOException e) {
final String MSG = "合并模板文件 \"" + path + "\" 失败!" + e.getMessage();
if (log.isErrorEnabled()) {
log.error(MSG, e);
}
throw new MergeTemplateException(MSG, e);
}
}
public static void main(String[] args) {
WebMacroTemplateEngine a = new WebMacroTemplateEngine();
Template t = new DefaultTemplate();
t.setResource("noservlet.wm");
Context c = new DefaultContext();
c.put("msg", "hello中文哦.");
StringWriter writer = new StringWriter();
a.mergeTemplate(t, c, writer);
System.out.println(writer.toString());
}