在加载freemarker模板时,即使该模板实际存在于路径中,我也收到一个找不到异常的文件.
更新：这是作为一个webservice运行.它会根据搜索查询将xml返回给客户端.当我从另一个java程序(从静态主机)调用它时,模板加载成功.但是当客户端请求xml时,发生FileNotFoundException.
操作系统：Windows 7
文件绝对路径：C：/ Users / Jay / workspace / WebService / templates /
这是我的代码：
private String templatizeQuestion(QuestionResponse qr) throws Exception
{
SimpleHash context = new SimpleHash();
Configuration config = new Configuration();
StringWriter out = new StringWriter();
Template _template = null;
if(condition1)
{
_template = config.getTemplate("/templates/fibplain.xml");
}
else if(condition2)
{
_template = config.getTemplate("/templates/mcq.xml");
}
context.put("questionResponse",qr);
_template.process(context,out);
return out.toString();
}
全错误堆栈：
java.io.FileNotFoundException: Template /templates/fibplain.xml not found. at freemarker.template.Configuration.getTemplate(Configuration.java:495) at freemarker.template.Configuration.getTemplate(Configuration.java:458) at com.hm.newAge.services.Curriculum.templatizeQuestion(Curriculum.java:251) at com.hm.newAge.services.Curriculum.processQuestion(Curriculum.java:228) at com.hm.newAge.services.Curriculum.processQuestionList(Curriculum.java:210) at com.hm.newAge.services.Curriculum.getTest(Curriculum.java:122) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(UnkNown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(UnkNown Source) at java.lang.reflect.Method.invoke(UnkNown Source) at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:212) at org.apache.axis2.rpc.receivers.RPcmessageReceiver.invokeBusinessLogic(RPcmessageReceiver.java:117) at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40) at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181) at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172) at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(UnkNown Source)
解决方法
FreeMarker模板路径由TemplateLoader对象解析,该对象应在Configuration对象中指定.您指定为模板路径的路径由TemplateLoader解释,通常相对于某种基本目录(即使以/开头),因此也称为模板根目录.在你的例子中,你没有指定任何TemplateLoader,所以你使用的是默认的TemplateLoader,它只是向后兼容的,几乎没用(也是危险的).所以,做这样的事情：
config.setDirectoryForTemplateLoading(new File(
"C:/Users/Jay/workspace/WebService/templates"));
接着：
config.getTemplate("fibplain.xml");
请注意,模板前缀不存在,因为模板路径相对于C：/ Users / Jay / workspace / WebService / templates. (这也意味着模板不能用../-s退出,这可能对安全性很重要.)
您也可以从SerlvetContext,“类路径”等加载模板,而不是从真实目录加载.这一切都取决于您选择的TemplateLoader.
参见：http://freemarker.org/docs/pgui_config_templateloading.html
更新：如果您获取FileNotFoundException而不是TemplateNotFoundException,那么现在是将FreeMarker升级到至少2.3.22的时候了.它还会提供更好的错误消息,就像您使用默认的TemplateLoader的典型错误一样,它会在错误消息中告诉您.较少浪费开发人员时间.