从 Ant 启动 tomcat 7 时出现 java.lang.NoClassDefFoundError
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java.lang.NoClassDefFoundError while starting tomcat 7 from Ant
提问by ivstas
My goal is to start tomcat using Ant. Here is my script:
我的目标是使用 Ant 启动 tomcat。这是我的脚本：
<target name="tomcat-start">
<java jar="${tomcat.home}/bin/bootstrap.jar" fork="true" dir="${tomcat.home}">
<classpath>
<fileset dir="${tomcat.home}/bin">
<include name="bootstrap.jar"/>
<include name="tomcat-juli.jar"/>
</fileset>
</classpath>
<jvmarg value="-Dcatalina.home=${tomcat.home}"/>
</java>
</target>
After script execution I receive this output:
脚本执行后，我收到此输出：
java.lang.NoClassDefFoundError: org/apache/juli/logging/LogFactory
at org.apache.catalina.startup.Bootstrap.<clinit>(Bootstrap.java:60)
Caused by: java.lang.ClassNotFoundException: org.apache.juli.logging.LogFactory
at java.net.URLClassLoader.run(URLClassLoader.java:366)
at java.net.URLClassLoader.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 1 more
Exception in thread "main"
Java Result: 1
I've checked: org.apache.juli.logging.LogFactoryclass is presented in tomcat-juli.jar!
我已经检查过：org.apache.juli.logging.LogFactory课程出现在tomcat-juli.jar！
What could be wrong?
可能有什么问题？
采纳答案by ivstas
For some unknown weird reasons tomcat doesn't start in my system even when I launch it from command line using java -jarcommand.
由于一些未知的奇怪原因，即使我使用java -jar命令从命令行启动它，tomcat 也不会在我的系统中启动。
However, I managed to startit using java -cp "bin\bootstrap.jar;bin\tomcat-juli.jar" org.apache.catalina.startup.Bootstrapcommand, executed from tomcat.homedirectory.
但是，我设法使用java -cp "bin\bootstrap.jar;bin\tomcat-juli.jar" org.apache.catalina.startup.Bootstrap从tomcat.home目录执行的命令启动它。
The code in ant which does the same:
ant 中执行相同操作的代码：
<exec executable="java" dir="${tomcat.home}">
<arg line="-cp bin\bootstrap.jar;bin\tomcat-juli.jar"/>
<arg value="org.apache.catalina.startup.Bootstrap"/>
</exec>
回答by Santosh
Check out the startup.shbatch file or shell script of tomcat. It has bunch of other files apart from bootstrap.jar. check setclasspath.sh. It has all jars are being set in class path.
查看startup.shtomcat的批处理文件或shell脚本。除了bootstrap.jar. 检查setclasspath.sh。它在类路径中设置了所有 jars。
Other more cleanapproach would be to invoke startup.shscript from ant. This will do everything for what it takes to start Tomcat Server.
其他更干净的方法是startup.sh从 ant调用脚本。这将完成启动 Tomcat 服务器所需的一切工作。
回答by Chip McCormick
If you want to stick with using catalina, the proper method is to add \setenv.bat with contents like:
如果你想坚持使用 catalina，正确的方法是添加 \setenv.bat 的内容如下：
set CLASSPATH=D:\tomcat\apache-tomcat-7.0.42\bin\bootstrap.jar;D:\tomcat\apache-tomcat-7.0.42\bin\tomcat-juli.jar
I discovered that by reading catalina.bat. Someone might want to update this with the proper Tomcat doc
我通过阅读 catalina.bat 发现了这一点。有人可能想用适当的 Tomcat 文档更新它
