Java 速度和 log4J 误差
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时间：2020-08-11 20:09:34 来源:igfitidea点击:
Error in velocity and log4J
提问by José Leal
I built a webapp that works perfectly fine in my localhost (tomcat). But when I tried to deploy, velocity crashes in init(), leaving me with this strange stack trace here (sorry for the size):
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，速度在 init() 中崩溃，让我在这里留下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
Does anyone knows the workaround? Or at least understood the error? I've done some googling but no clues.. only this pagefacing the same problem but no solution..
有谁知道解决方法？或者至少理解错误？我已经做了一些谷歌搜索但没有线索..只有这个页面面临同样的问题但没有解决方案..
采纳答案by Mike Pone
I think this line has the answer. Looks like there is an issue creating the velocity.log file. What does your configuration file look like?
我认为这条线有答案。创建velocity.log 文件时似乎存在问题。你的配置文件是什么样的？
Caused by: java.io.FileNotFoundException: velocity.log (Permission denied)
回答by Chris Thornhill
It appears the process attempting to open the log file does not have permission to do so:
尝试打开日志文件的进程似乎无权这样做：
Caused by: java.io.FileNotFoundException: velocity.log (Permission denied)
回答by glennsp
Velocity tries to put the logfile in the directory Tomcat was started from, and I believe that is actually /.
Velocity 尝试将日志文件放在 Tomcat 启动的目录中，我相信它实际上是 /.
You can force Velocity to log to Tomcat's standard log by adding these lines to your velocity.properties:
您可以通过将这些行添加到您的velocity.properties 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
The velocity.properties should go into /WEB-INF/velocity.properties but you can override that in you servlet definition in web.xml.
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。
If you're initialising Velocity by properties and not the velocity.properties:
如果您通过属性而不是velocity.properties 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);
Read more here:
在此处阅读更多信息：
http://velocity.apache.org/engine/devel/developer-guide.html#usinglog4jwithexistinglogger
http://velocity.apache.org/engine/devel/developer-guide.html#usinglog4jwithexistinglogger
and here:
和这里：
回答by dharam
回答by Harshavardhan
I too had same Issue but I was able to resolve this overriding the default log file to customized log file. Just add this 3 lines of code in the method where you are calling evaluate Function.
我也有同样的问题，但我能够解决这个覆盖默认日志文件到自定义日志文件的问题。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);
This is one way of solving it ie, without using property file.
这是解决它的一种方法，即不使用属性文件。
回答by Reihan_amn
I have had exactly the same problem with my code and after hours of googling for that , I just decided to add some other Velocity libraries to my project. My project only had the apache-velocity jar file, then from here, I also added Velocity-Dep to my Maven project and Yesssssssssss! VICTORY!
我的代码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，然后从这里开始，我还将 Velocity-Dep 添加到我的 Maven 项目和 Yesssssssssss！胜利！
