我有一个现有的SpringMVC + velocty项目，并尝试将其升级为SpringBoot + Velocity，作为这里的数十种velocty模板。
首先，一切都在我的日食环境中运行，并且我可以访问http://sxu-mvp-p.xxx-qa.com.cn:8888/login页面。
但是，当我使用mvn clean package -Dconf=dev -Dmaven.test.skip=true构建jar并引发以下异常
2018-09-22 14:42:43.652 [http-nio-8888-exec-3] INFO com.xxx.monitor.controller.LoginController.login:58 - Hello world org.springframework.web.servlet.view.velocity.VelocityLayoutViewResolver@35390ee3
2018-09-22 14:42:43.654 [http-nio-8888-exec-3] INFO com.xxx.monitor.controller.LoginController.login:61 - Receiver a login request: /login
2018-09-22 14:42:43.744 [http-nio-8888-exec-3] ERROR org.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/].[dispatcherServlet].log:181 - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is java.lang.NullPointerException] with root cause
java.lang.NullPointerException: null
at org.springframework.web.servlet.view.velocity.VelocityToolboxView.createVelocityContext(VelocityToolboxView.java:113)
at org.springframework.web.servlet.view.velocity.VelocityView.renderMergedTemplateModel(VelocityView.java:290)
at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:167)
at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1286)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.web.filter.ApplicationContextHeaderFilter.doFilterInternal(ApplicationContextHeaderFilter.java:55)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.boot.actuate.trace.WebRequestTraceFilter.doFilterInternal(WebRequestTraceFilter.java:110)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at com.xxx.utils.web.HttpRequestMDCFilter.doFilter(HttpRequestMDCFilter.java:108)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
.......
访问登录页面时。
以下是我的一些配置：
pom.xml
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>1.7</version>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity-tools</artifactId>
<version>2.0</version>
<exclusions>
<exclusion>
<groupId>org.apache.struts</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-velocity -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-velocity</artifactId>
<version>1.4.7.RELEASE</version>
</dependency>
//Spring-velocity.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd"
default-autowire="byName">
<bean id="velocityConfig" class="org.springframework.web.servlet.view.velocity.VelocityConfigurer">
<property name="resourceLoaderPath" value="/WEB-INF/vm"/>
<property name="configLocation" value="classpath:velocity.properties"/>
</bean>
<bean id="handlerMapping" class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping">
</bean>
<bean id="exceptionResolver" class="com.xxx.monitor.ExceptionHandler"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.velocity.VelocityLayoutViewResolver">
<property name="suffix" value=".vm"/>
<property name="layoutUrl" value="/WEB-INF/vm/layout/default.vm"/>
<!-- 使用springMacro、使用servlet的对象 -->
<property name="exposeSpringMacroHelpers" value="true"/>
<property name="exposeRequestAttributes" value="true"/>
<property name="prefix" value="/WEB-INF/vm/" />
<property name="viewClass" value="org.springframework.web.servlet.view.velocity.VelocityLayoutView" />
<property name="exposeSessionAttributes" value="true"/>
<property name="contentType" value="text/html;charset=UTF-8"/>
<!-- spring的日期格式化 -->
<property name="dateToolAttribute" value="dateTool"/>
<property name="toolboxConfigLocation" value="/WEB-INF/velocity-tools.xml"/>
<property name="attributesMap">
<map>
</map>
</property>
</bean>
<!-- <bean id="velocityEngine"
class="org.springframework.ui.velocity.VelocityEngineFactoryBean">
<property name="velocityProperties">
<props>
<prop key="resource.loader">file</prop>
<prop key="file.resource.loader.class">
org.apache.velocity.runtime.resource.loader.FileResourceLoader
</prop>
<prop key="file.resource.loader.path">WEB-INF/vm/</prop>
<prop key="file.resource.loader.cache">false</prop>
</props>
</property>
</bean> -->
</beans>
//velocity-tools.xml
<toolbox>
<tool>
<key>stringUtils</key>
<scope>application</scope>
<class>org.apache.commons.lang.StringUtils</class>
</tool>
<tool>
<key>dateFormatUtils</key>
<scope>application</scope>
<class>org.apache.commons.lang.time.DateFormatUtils</class>
</tool>
<tool>
<key>escapeUtils</key>
<scope>application</scope>
<class>org.apache.commons.lang.StringEscapeUtils</class>
</tool>
<tool>
<key>loginContextHolder</key>
<scope>application</scope>
<class>com.xxx.monitor.vo.LoginContextHolder</class>
</tool>
</toolbox>
显示目录层次结构 BOOT-INFO /课程/ | spring-velocity.xml |速度属性 | WEB-INF / | velocity-tools.xml
当servletContext.getResourceAsStream(toolboxFile)中的ServletToolboxManager::getInstance(ServletContext servletContext, String toolboxFile).时抛出NPE
此外，控制器是：
@Controller
@RequestMapping(value = "/")
public class LoginController extends BaseController{
@RequestMapping(value = "/login", method = RequestMethod.GET)
public ModelAndView login(HttpServletRequest request, HttpServletResponse response) {
logger.info("Hello world {}", resolver.toString());
// 展示login页面
ModelAndView mav = new ModelAndView();
logger.info("Receiver a login request: {} ", request.getRequestURI());
LoginContextHolder.clear();
mav.setViewName("login");
return mav;
}
}
配置似乎有问题，没有使用toolboxConfigLocation，或者路径配置错误。
任何人都可以帮助解决它并解释为什么它可以在日食中工作吗？
谢谢