如题，由于新项目需要，之前自己也没接触过Velocity，所以尝试整合时遇到几个问题，请大牛指点。

主要配置如下(无关属性已删减)：

1、视图处理器：

<bean id="velocityViewResolver"

class="org.springframework.web.servlet.view.velocity.VelocityLayoutViewResolver">

<property name="viewClass"

value="org.springframework.web.servlet.view.velocity.VelocityLayoutView" />

                                                <property name="prefix" value="screen/" />

                                                <property name="stufix" value=".vm" />

                                                <property name="exposeSpringMacroHelpers" value="true" /><!-- 默认支持，这里为测试，显式配置-->

</bean>

2、模板引擎：

<!-- Velocity引擎 -->

<bean id="velocityConfigurer"

class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">

<property name="resourceLoaderPath" value="/WEB-INF/velocity/" />

<!-- <property name="configLocation" value="classpath:velocity.properties" /> -->

</property>

</bean>

3、属性文件velocity.properties:

resource.loader = class

class.resource.loader.class = org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader

class.resource.loader.cache = false

class.resource.loader.modificationCheckInterval = 2

#自定义宏库

velocimacro.library = velocity-macro.vm

velocimacro.library.autoreload = true

==========================================================================

主要日志显示如下:

2013-12-29 12:18:02,333 [DEBUG]----> Creating shared instance of singleton bean 'velocityConfigurer'

2013-12-29 12:18:02,333 [DEBUG]----> Creating instance of bean 'velocityConfigurer'

2013-12-29 12:18:02,333 [DEBUG]----> Eagerly caching bean 'velocityConfigurer' to allow for resolving potential circular references

2013-12-29 12:18:02,333 [DEBUG]----> Invoking afterPropertiesSet() on bean with name 'velocityConfigurer'

2013-12-29 12:18:02,364 [INFO]----> Loading Velocity config from [class path resource [velocity.properties]]

2013-12-29 12:18:02,364 [DEBUG]----> Resource loader path [/WEB-INF/velocity/] resolved to file [D:SpringMVC\WEB-INF\velocity]

2013-12-29 12:18:02,379 [INFO]----> ClasspathResourceLoader with name 'springMacro' added to configured VelocityEngine

2013-12-29 12:18:02,379 [INFO]----> ************************************************************** 

2013-12-29 12:18:02,395 [INFO]----> Starting Jakarta Velocity v1.4

2013-12-29 12:18:02,395 [INFO]----> RuntimeInstance initializing.

2013-12-29 12:18:02,395 [INFO]----> Default Properties File: org\apache\velocity\runtime\defaults\velocity.properties

2013-12-29 12:18:02,395 [INFO]----> Default ResourceManager initializing. (class org.apache.velocity.runtime.resource.ResourceManagerImpl)

2013-12-29 12:18:02,411 [INFO]----> Resource Loader Instantiated: org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader

2013-12-29 12:18:02,411 [INFO]----> ClasspathResourceLoader : initialization starting.

2013-12-29 12:18:02,411 [INFO]----> ClasspathResourceLoader : initialization complete.

2013-12-29 12:18:02,411 [INFO]----> Resource Loader Instantiated: org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader

2013-12-29 12:18:02,411 [INFO]----> ClasspathResourceLoader : initialization starting.

2013-12-29 12:18:02,411 [INFO]----> ClasspathResourceLoader : initialization complete.

2013-12-29 12:18:02,411 [INFO]----> ResourceCache : initialized. (class org.apache.velocity.runtime.resource.ResourceCacheImpl)

2013-12-29 12:18:02,426 [INFO]----> Default ResourceManager initialization complete.

2013-12-29 12:18:02,426 [INFO]----> Loaded System Directive: org.apache.velocity.runtime.directive.Literal

2013-12-29 12:18:02,426 [INFO]----> Loaded System Directive: org.apache.velocity.runtime.directive.Macro

2013-12-29 12:18:02,426 [INFO]----> Loaded System Directive: org.apache.velocity.runtime.directive.Parse

2013-12-29 12:18:02,426 [INFO]----> Loaded System Directive: org.apache.velocity.runtime.directive.Include

2013-12-29 12:18:02,426 [INFO]----> Loaded System Directive: org.apache.velocity.runtime.directive.Foreach

2013-12-29 12:18:02,474 [INFO]----> Created: 20 parsers.

2013-12-29 12:18:02,474 [INFO]----> Velocimacro : initialization starting.

2013-12-29 12:18:02,474 [INFO]----> Velocimacro : adding VMs from VM library template : velocity-macro.vm

2013-12-29 12:18:02,490 [INFO]----> Velocimacro : added new VM : #test( code ) : source = velocity-macro.vm

2013-12-29 12:18:02,505 [INFO]----> ResourceManager : found config/velocity/velocity-macro.vm with loader org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader

2013-12-29 12:18:02,505 [INFO]----> Velocimacro :  VM library template macro registration complete.

2013-12-29 12:18:02,505 [INFO]----> Velocimacro : adding VMs from VM library template : org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,505 [INFO]----> Velocimacro : added new VM : #springMessage( code ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,505 [INFO]----> Velocimacro : added new VM : #springMessageText( code text ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,505 [INFO]----> Velocimacro : added new VM : #springTheme( code ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,505 [INFO]----> Velocimacro : added new VM : #springThemeText( code text ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,505 [INFO]----> Velocimacro : added new VM : #springUrl( relativeUrl ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springBind( path ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springBindEscaped( path htmlEscape ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormInput( path attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormPasswordInput( path attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormHiddenInput( path attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormTextarea( path attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormSingleSelect( path options attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormMultiSelect( path options attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormRadioButtons( path options separator attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,521 [INFO]----> Velocimacro : added new VM : #springFormCheckboxes( path options separator attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,536 [INFO]----> Velocimacro : added new VM : #springFormCheckbox( path attributes ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,536 [INFO]----> Velocimacro : added new VM : #springShowErrors( separator classOrStyle ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,536 [INFO]----> Velocimacro : added new VM : #springCloseTag( ) : source = org/springframework/web/servlet/view/velocity/spring.vm

2013-12-29 12:18:02,568 [INFO]----> ResourceManager : found org/springframework/web/servlet/view/velocity/spring.vm with loader org.apache.velocity.runtime.resource.loader.ClasspathResourceLoader

2013-12-29 12:18:02,568 [INFO]----> Velocimacro :  VM library template macro registration complete.

2013-12-29 12:18:02,568 [INFO]----> Velocimacro : allowInline = true : VMs can be defined inline in templates

2013-12-29 12:18:02,568 [INFO]----> Velocimacro : allowInlineToOverride = false : VMs defined inline may NOT replace previous VM definitions

2013-12-29 12:18:02,568 [INFO]----> Velocimacro : allowInlineLocal = false : VMs defined inline will be  global in scope if allowed.

2013-12-29 12:18:02,568 [INFO]----> Velocimacro : messages on  : VM system will output logging messages

2013-12-29 12:18:02,568 [INFO]----> Velocimacro : autoload on  : VM system will automatically reload global library macros

2013-12-29 12:18:02,568 [INFO]----> Velocimacro : initialization complete.

2013-12-29 12:18:02,568 [INFO]----> Velocity successfully started.

2013-12-29 12:18:02,568 [DEBUG]----> Finished creating instance of bean 'velocityConfigurer'

=====================================================================================================

测试场景如下：

第一组：

1、不启用引擎中的自定义宏库(注释掉<property name="configLocation" value="classpath:velocity.properties" />，上面的日志就少了蓝色那段)，其他配置不变，可以顺利在/WEB-INF/velocity/screen/下面找到目标vm文件，这里假设是demo.vm(/WEB-INF/velocity/screen/demo.vm).

2、启用引擎中的自定义宏库(去掉<property name="configLocation" value="classpath:velocity.properties" />的注释，上面日志对应的蓝色那段)，其他配置不变，再次执行时，报错，说是找不到screen/demo.vm。日志如下：

2013-12-29 12:30:14,284 [DEBUG]----> Returning cached instance of singleton bean 'velocityConfigurer'

2013-12-29 12:30:14,286 [DEBUG]----> Invoking afterPropertiesSet() on bean with name 'demo.vm'

2013-12-29 12:30:14,287 [ERROR]----> ResourceManager : unable to find resource 'screen/demo.vm' in any resource loader.

2013-12-29 12:30:14,288 [DEBUG]----> No Velocity view found for URL: screen/demo.vm

=====问题一：1和2形成明显对比，怀疑是资源的类加载器不是同一个导致，但不明白原理，请指点。

第二组：

在视图处理器中，无论<property name="exposeSpringMacroHelpers" value="true" />中value是true还是false，debug日志打印中都显示加载spring.vm(上面日志绿色部分日志)和velocity.properties(jar包中自带那个，不是我放在类路径下的，上面日志红色部分日志)。

=====问题二：这是不是我的配置有问题？还是本身运行机制是这样，不影响执行呢？

感激不尽。