實現beetl的function，然後使用spring配置注入該bean即可

public class I18nUtil implements Function{

    @Override
    public Object call(Object[] obj, Context context) {
        if(obj.length < 1) {
            try {
                throw new BeetlException("呼叫Beetl方法獲取國際化資訊時 引數列表傳遞錯誤");
            } catch (BeetlException e) {
                e.printStackTrace();
                return
 
 "呼叫Beetl方法獲取國際化資訊時 引數列表傳遞錯誤";
            }
        }
        HttpServletRequest request = (HttpServletRequest) context.getGlobal("request");
        RequestContext requestContext = new RequestContext(request);
        String message = "";
        try {
            message = requestContext.getMessage((String)obj[0
 
]);
            if("".equals(message) && obj.length > 1){
                message = (String)obj[(int)(1+Math.random()*(obj.length-1))];
            }
        } catch (Exception e) {
            e.printStackTrace();
            if(obj.length > 1)
                message = (String)obj[(int
 
)(1+Math.random()*(obj.length-1))];
        }
        return message;
    }

}