eclipse 在 java.library.path: C:\Program Files (x86)\Java 中找不到可在生产环境中实现最佳性能的 Tomcat 本机库

Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files (x86)\Java

提问by Sandeep Roniyaar

'Starting Tomcat v7.0 Server at localhost' has encountered a problem.

Server Tomcat v7.0 Server at localhost failed to start.

This is my error. I searched a lot but I can't able to find a solution for this please help me someone

In the Console tab it has given Info:

'Starting Tomcat v7.0 Server at localhost' 遇到问题。

服务器 Tomcat v7.0 服务器在 localhost 启动失败。

这是我的错误。我搜索了很多，但找不到解决方案，请帮助我

在控制台选项卡中，它提供了信息：

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files (x86)\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files (x86)/Java/jre6/bin/client;C:/Program Files (x86)/Java/jre6/bin;C:/Program Files (x86)/Java/jre6/lib/i386;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ThinkPad\Bluetooth Software\;C:\Program Files\ThinkPad\Bluetooth Software\syswow64;C:\Program Files (x86)\Common Files\Lenovo;C:\Program Files (x86)\Lenovo\Access Connections\;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Java\jdk1.6.0_20\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\TortoiseGit\bin;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Java\jdk1.6.0_20\;C:\Users\Lenovo\Downloads\eclipse-jee-luna-R-win32(1)\eclipse;

All the traces of Console are here. Please help me.

Jul 17, 2014 4:51:36 PM org.apache.catalina.core.AprLifecycleListener init INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files (x86)\Java\jre6\bin;.;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files (x86)/Java/jre6/bin/client;C:/Program Files (x86)/Java/jre6/bin;C:/Program Files (x86)/Java/jre6/lib/i386;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\ThinkPad\Bluetooth Software\;C:\Program Files\ThinkPad\Bluetooth Software\syswow64;C:\Program Files (x86)\Common Files\Lenovo;C:\Program Files (x86)\Lenovo\Access Connections\;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Java\jdk1.6.0_20\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\TortoiseGit\bin;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Java\jdk1.6.0_20\;C:\Users\Lenovo\Downloads\eclipse-jee-luna-R-win32(1)\eclipse; Jul 17, 2014 4:51:36 PM org.apache.tomcat.util.digester.Digester startElement SEVERE: Begin event threw error java.lang.UnsupportedClassVersionError: javax/servlet/http/HttpServletRequest : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Unknown Source) at java.lang.Class.privateGetPublicMethods(Unknown Source) at java.lang.Class.getMethods(Unknown Source) at org.apache.tomcat.util.IntrospectionUtils.findMethods(IntrospectionUtils.java:753) at org.apache.tomcat.util.IntrospectionUtils.setProperty(IntrospectionUtils.java:286) at org.apache.tomcat.util.IntrospectionUtils.setProperty(IntrospectionUtils.java:275) at org.apache.catalina.startup.SetAllPropertiesRule.begin(SetAllPropertiesRule.java:67) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537) at org.apache.catalina.startup.Catalina.load(Catalina.java:555) at org.apache.catalina.startup.Catalina.load(Catalina.java:598) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:281) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:449) java.lang.UnsupportedClassVersionError: javax/servlet/http/HttpServletRequest : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at sun.misc.Launcher$ExtClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.SecureClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.defineClass(Unknown Source) at java.net.URLClassLoader.access$000(Unknown Source) at java.net.URLClassLoader$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Unknown Source) at java.lang.Class.privateGetPublicMethods(Unknown Source) at java.lang.Class.getMethods(Unknown Source) at org.apache.tomcat.util.IntrospectionUtils.findMethods(IntrospectionUtils.java:753) at org.apache.tomcat.util.IntrospectionUtils.setProperty(IntrospectionUtils.java:286) at org.apache.tomcat.util.IntrospectionUtils.setProperty(IntrospectionUtils.java:275) at org.apache.catalina.startup.SetAllPropertiesRule.begin(SetAllPropertiesRule.java:67) at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1276) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1537) at org.apache.catalina.startup.Catalina.load(Catalina.java:555) at org.apache.catalina.startup.Catalina.load(Catalina.java:598) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:281) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:449)

Thanks in advance.

Console的所有痕迹都在这里。请帮我。

\Program Files (x86)\Lenovo\Access Connections\;C:\Program Files (x86)\Windows Live\Shared;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel \WirelessCommon\;C:\Program Files (x86)\Java\jdk1.6.0_20\bin;C:\Program Files\TortoiseSVN\bin;C:\Program Files\TortoiseGit\bin;C:\Program Files\Intel\ WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Java\jdk1.6.0_20\;C:\Users\Lenovo\Downloads\eclipse-jee-luna -R-win32(1)\eclipse; 2014 年 7 月 17 日下午 4:51:36 org.apache.tomcat.util.digester.Digester startElement 严重：开始事件抛出错误 java.lang.UnsupportedClassVersionError：javax/servlet/http/HttpServletRequest：java 不支持 Major.minor 版本 51.0 .lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang。

提前致谢。

回答by prashant thakre

To resolve the issue related to "The APR based Apache Tomcat Native library which allows optimal performance" you have to add a system property to the launch configuration of the tomcat server in eclipse.

要解决与“允许最佳性能的基于 APR 的 Apache Tomcat 本机库”相关的问题，您必须在 eclipse 中向 tomcat 服务器的启动配置添加系统属性。

 -Djava.library.path=[tomcat_home]\bin

as well tcnative-1.dll 64/32 bitdownload and place it in bin folder.

以及tcnative-1.dll 64/32 bit下载并将其放在bin文件夹中。

回答by Cédric Couralet

The message "The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path" is not an error.

消息“在 java.library.path 上找不到允许在生产环境中获得最佳性能的基于 APR 的 Apache Tomcat 本机库”不是错误。

From your logs, the error is :

从您的日志中，错误是：

4:51:36 PM org.apache.tomcat.util.digester.Digester startElement 
SEVERE: Begin event threw error java.lang.UnsupportedClassVersionError: 
        javax/servlet/http/HttpServletRequest : Unsupported major.minor version 51.0

Which means you are using java 6 to launch something compiled with java 7. Are you sure you are using tomcat7 and not tomcat8?

这意味着您正在使用 java 6 来启动用 java 7 编译的东西。您确定您使用的是 tomcat7 而不是 tomcat8？

回答by Sandeep Roniyaar

You can change the eclipse tomcat server configuration. Open the server view, double click on you server to open server configuration. Then click to activate "Publish module contents to separate XML files". Finally, restart your server, the message must disappear.

您可以更改 eclipse tomcat 服务器配置。打开服务器视图，双击您的服务器打开服务器配置。然后单击以激活“将模块内容发布到单独的 XML 文件”。最后，重新启动您的服务器，该消息必须消失。

This time page will come without any issues.

这次页面将没有任何问题。