Velocity模板缓存配置
velocity开启缓存，主要用于线上环境，在velocity.properties中
file.resource.loader.cache = truefile.resource.loader.modificationCheckInterval = -1
Template t = getTemplate(stack, velocityManager.getVelocityEngine(), invocation, finalLocation, encoding);VelocityResult.java :protected Template getTemplate(ValueStack stack, VelocityEngine velocity, ActionInvocation invocation, String location, String encoding) throws Exception { if (!location.startsWith("/")) { location = invocation.getProxy().getNamespace() + "/" + location; } Template template = velocity.getTemplate(location, encoding); return template; }VelocityEngine.javapublic Template getTemplate(String name, String encoding) throws ResourceNotFoundException, ParseErrorException, Exception { return ri.getTemplate( name, encoding ); }RuntimeInstance.javapublic Template getTemplate(String name, String encoding) throws ResourceNotFoundException, ParseErrorException, Exception { requireInitialization(); return (Template) resourceManager.getResource(name, ResourceManager.RESOURCE_TEMPLATE, encoding); }ResourceManagerImpl.javapublic Resource getResource(final String resourceName, final int resourceType, final String encoding) throws ResourceNotFoundException, ParseErrorException, Exception { String resourceKey = resourceType + resourceName; Resource resource = globalCache.get(resourceKey);ResourceCacheImpl.javapublic Resource get( Object key ) { return (Resource) cache.get( key ); }