速度和 log4J 错误

Question

我构建了一个在我的本地主机（tomcat）中运行良好的 web 应用程序。但是当我尝试部署时，velocity 在 init() 中崩溃，在这里留下了这个奇怪的堆栈跟踪（对不起大小）：

ERROR [main] (VelocityConfigurator.java:62) - Error initializing Velocity! org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime configuration. at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:206) at org.apache.velocity.runtime.log.LogManager.updateLog(LogManager.java:255) at org.apache.velocity.runtime.RuntimeInstance.initializeLog(RuntimeInstance.java:795) at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:250) at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:589) at org.apache.velocity.runtime.RuntimeSingleton.init(RuntimeSingleton.java:229) at org.apache.velocity.app.Velocity.init(Velocity.java:107) at com.webcodei.velociraptor.velocity.VelocityConfigurator.initVelocity(VelocityConfigurator.java:57) at com.webcodei.velociraptor.velocity.VelocityConfigurator.configure(VelocityConfigurator.java:42) at com.webcodei.velociraptor.VelociListener.contextInitialized(VelociListener.java:26) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4336) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:761) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:741) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1023) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1015) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:448) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:552) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: java.lang.RuntimeException: Error configuring Log4JLogChute : at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.velocity.util.ExceptionUtils.createWithCause(ExceptionUtils.java:67) at org.apache.velocity.util.ExceptionUtils.createRuntimeException(ExceptionUtils.java:45) at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:133) at org.apache.velocity.runtime.log.Log4JLogChute.init(Log4JLogChute.java:85) at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:157) ... 33 more Caused by: java.io.FileNotFoundException: velocity.log (Permission denied) at java.io.FileOutputStream.openAppend(Native Method) at java.io.FileOutputStream.(FileOutputStream.java:177) at java.io.FileOutputStream.(FileOutputStream.java:102) at org.apache.log4j.FileAppender.setFile(FileAppender.java:290) at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:194) at org.apache.log4j.FileAppender.(FileAppender.java:109) at org.apache.log4j.RollingFileAppender.(RollingFileAppender.java:72) at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:118) ... 35 more ERROR [main] (VelocityConfigurator.java:63) - java.lang.RuntimeException: Error configuring Log4JLogChute : org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime configuration. at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:206) at org.apache.velocity.runtime.log.LogManager.updateLog(LogManager.java:255) at org.apache.velocity.runtime.RuntimeInstance.initializeLog(RuntimeInstance.java:795) at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:250) at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:589) at org.apache.velocity.runtime.RuntimeSingleton.init(RuntimeSingleton.java:229) at org.apache.velocity.app.Velocity.init(Velocity.java:107) at com.webcodei.velociraptor.velocity.VelocityConfigurator.initVelocity(VelocityConfigurator.java:57) at com.webcodei.velociraptor.velocity.VelocityConfigurator.configure(VelocityConfigurator.java:42) at com.webcodei.velociraptor.VelociListener.contextInitialized(VelociListener.java:26) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4336) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:761) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:741) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1023) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1015) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:448) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:552) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: java.lang.RuntimeException: Error configuring Log4JLogChute : at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.velocity.util.ExceptionUtils.createWithCause(ExceptionUtils.java:67) at org.apache.velocity.util.ExceptionUtils.createRuntimeException(ExceptionUtils.java:45) at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:133) at org.apache.velocity.runtime.log.Log4JLogChute.init(Log4JLogChute.java:85) at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:157) ... 33 more Caused by: java.io.FileNotFoundException: velocity.log (Permission denied) at java.io.FileOutputStream.openAppend(Native Method) at java.io.FileOutputStream.(FileOutputStream.java:177) at java.io.FileOutputStream.(FileOutputStream.java:102) at org.apache.log4j.FileAppender.setFile(FileAppender.java:290) at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:194) at org.apache.log4j.FileAppender.(FileAppender.java:109) at org.apache.log4j.RollingFileAppender.(RollingFileAppender.java:72) at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:118) ... 35 more ERROR [main] (VelocityConfigurator.java:64) - Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime configuration. org.apache.velocity.exception.VelocityException: Failed to initialize an instance of org.apache.velocity.runtime.log.Log4JLogChute with the current runtime configuration. at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:206) at org.apache.velocity.runtime.log.LogManager.updateLog(LogManager.java:255) at org.apache.velocity.runtime.RuntimeInstance.initializeLog(RuntimeInstance.java:795) at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:250) at org.apache.velocity.runtime.RuntimeInstance.init(RuntimeInstance.java:589) at org.apache.velocity.runtime.RuntimeSingleton.init(RuntimeSingleton.java:229) at org.apache.velocity.app.Velocity.init(Velocity.java:107) at com.webcodei.velociraptor.velocity.VelocityConfigurator.initVelocity(VelocityConfigurator.java:57) at com.webcodei.velociraptor.velocity.VelocityConfigurator.configure(VelocityConfigurator.java:42) at com.webcodei.velociraptor.VelociListener.contextInitialized(VelociListener.java:26) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3827) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4336) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:761) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:741) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1023) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1015) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.core.StandardService.start(StandardService.java:448) at org.apache.catalina.core.StandardServer.start(StandardServer.java:710) at org.apache.catalina.startup.Catalina.start(Catalina.java:552) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413) Caused by: java.lang.RuntimeException: Error configuring Log4JLogChute : at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at org.apache.velocity.util.ExceptionUtils.createWithCause(ExceptionUtils.java:67) at org.apache.velocity.util.ExceptionUtils.createRuntimeException(ExceptionUtils.java:45) at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:133) at org.apache.velocity.runtime.log.Log4JLogChute.init(Log4JLogChute.java:85) at org.apache.velocity.runtime.log.LogManager.createLogChute(LogManager.java:157) ... 33 more Caused by: java.io.FileNotFoundException: velocity.log (Permission denied) at java.io.FileOutputStream.openAppend(Native Method) at java.io.FileOutputStream.(FileOutputStream.java:177) at java.io.FileOutputStream.(FileOutputStream.java:102) at org.apache.log4j.FileAppender.setFile(FileAppender.java:290) at org.apache.log4j.RollingFileAppender.setFile(RollingFileAppender.java:194) at org.apache.log4j.FileAppender.(FileAppender.java:109) at org.apache.log4j.RollingFileAppender.(RollingFileAppender.java:72) at org.apache.velocity.runtime.log.Log4JLogChute.initAppender(Log4JLogChute.java:118) ... 35 more

有人知道解决方法吗？或者至少理解错误？我做了一些谷歌搜索但没有任何线索..只有这个page面临同样的问题但没有解决方案..

Answer 1

Velocity 尝试将日志文件放在启动 Tomcat 的目录中，我相信它实际上是 /。

您可以通过将这些行添加到您的 velocity.properties 中来强制 Velocity 记录到 Tomcat 的标准日志：

runtime.log.logsystem.class=org.apache.velocity.runtime.log.SimpleLog4JLogSystem
runtime.log.logsystem.log4j.category=velocity
runtime.log.logsystem.log4j.logger=velocity

velocity.properties 应该进入 /WEB-INF/velocity.properties 但您可以在 web.xml 中的 servlet 定义中覆盖它。

如果您通过属性而不是 velocity.properties 来初始化 Velocity：

VelocityEngine engine = new VelocityEngine();

Properties props = new Properties();
props.put("runtime.log.logsystem.class", "org.apache.velocity.runtime.log.SimpleLog4JLogSystem");
props.put("runtime.log.logsystem.log4j.category", "velocity");
props.put("runtime.log.logsystem.log4j.logger", "velocity");

engine.init(props);

在这里阅读更多：

http://velocity.apache.org/engine/devel/developer-guide.html#usinglog4jwithexistinglogger

这里：

http://minaret.biz/tips/tomcatLogging.html#velocity

Answer 2

我认为这条线有答案。看起来创建velocity.log 文件时出现问题。你的配置文件是什么样的？

Caused by: java.io.FileNotFoundException: velocity.log (Permission denied)

Answer 3

尝试打开日志文件的进程似乎没有这样做的权限：

Caused by: java.io.FileNotFoundException: velocity.log (Permission denied)

Answer 4

我的代码也遇到了完全相同的问题，经过数小时的谷歌搜索后，我决定将其他一些 Velocity 库添加到我的项目中。 我的项目只有 apache-velocity jar 文件，然后从here，我还添加了 Velocity-Dep 到我的 Maven 项目和 Yesssssssssss！胜利！

Answer 5

我也有同样的问题，但我能够解决这个问题，将默认日志文件覆盖为自定义日志文件。只需在调用评估函数的方法中添加这 3 行代码即可。

Velocity.setProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS,"org.apache.velocity.runtime.log.Log4JLogChute");

Velocity.setProperty("runtime.log.logsystem.log4j.logger","com.mindtree.igg.website.email.TemplateMergeUtilVelocityImpl");

VelocityContext velocityContext = new VelocityContext(parameters);

这是一种解决方法，即不使用属性文件。

Answer 6

我遇到了同样的问题，并写了一篇描述性博客，其中包含可能的原因和解决方案。这是link