20154 月24
Velocity:文本模板渲染
public String getTemplateStr(String template, Map<String, String> para) {
StringWriter writer = new StringWriter();
try {
RuntimeServices runtimeServices = RuntimeSingleton.getRuntimeServices();
StringReader reader = new StringReader(template);
SimpleNode node = runtimeServices.parse(reader, "Template name");
Template t = new Template();
t.setRuntimeServices(runtimeServices);
t.setData(node);
t.initDocument();
VelocityContext context = new VelocityContext();
if (para.size() > 0) {
for (String key : para.keySet()) {
context.put(key, para.get(key));
}
}
t.merge(context, writer);
} catch (Exception e) {
throw new RuntimeException("Error commiting transaction! cause:"+ e.getMessage());
}
return writer.toString();
}
@At("/form")
@Ok("vm:template.private.test")
public void form(HttpServletRequest req, HttpServletResponse resp) {
Map<String, Object> formParams = new HashMap<String, Object>();
formParams.put("formKey", "form/waizhibiaodan/01/01.form");
int timeout = 60 * 1000;
String str = Http.post("http://127.0.0.1/test/getFormKey", formParams, timeout);
NutMap map = Json.fromJson(NutMap.class, str);
String formData = map.getString("data");
Map<String, String> params = new HashMap<String, String>();
params.put("startDate", "2015-04-21");
params.put("endDate", "2015-04-25");
req.setAttribute("formData", getTemplateStr(formData, params));
}
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