Java 使用ant的NoClassDefFoundError

尝试从ant中删除serverresource类时出现以下异常。它正在使用eclipse。异常日志：。类路径似乎已设置，但找不到restlet serverresource类。。。任何帮助都将不胜感激

    run:
     [echo] Running Web Service
     [java] When using 'jar' attribute classpath-settings are ignored. See the manual for more information.
fileset: Setup scanner in dir C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib with patternSet{ includes: [*.jar] excludes: [] }
     [java] Executing 'C:\Program Files\Java\jdk1.7.0_02\jre\bin\java.exe' with arguments:
     [java] '-classpath'
     [java] 'C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\axis.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\commons-discovery-0
2.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\commons-logging.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\gson-2.1-source
.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\gson-2.1.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\javax.ws.rs.jar;C:\User
\Olga\workspace\people\WebContent\WEB-INF\lib\jaxrpc.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\org.restlet.ext.jaxrs.jar;C:\Users\Olg
\workspace\people\WebContent\WEB-INF\lib\org.restlet.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\saaj.jar;C:\Users\Olga\workspace\peopl
\WebContent\WEB-INF\lib\wsdl4j.jar;C:\Users\Olga\workspace\people\build'
     [java] '-jar'
     [java] 'C:\Users\Olga\workspace\people\build\People.jar'
     [java]
     [java] The ' characters around the executable and arguments are
     [java] not part of the command.
Execute:Java13CommandLauncher: Executing 'C:\Program Files\Java\jdk1.7.0_02\jre\bin\java.exe' with arguments:
'-classpath'
'C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\axis.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\commons-discovery-0.2.jar;C:\Us
rs\Olga\workspace\people\WebContent\WEB-INF\lib\commons-logging.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\gson-2.1-sources.jar;C:\Use
s\Olga\workspace\people\WebContent\WEB-INF\lib\gson-2.1.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\javax.ws.rs.jar;C:\Users\Olga\works
ace\people\WebContent\WEB-INF\lib\jaxrpc.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\org.restlet.ext.jaxrs.jar;C:\Users\Olga\workspace\
eople\WebContent\WEB-INF\lib\org.restlet.jar;C:\Users\Olga\workspace\people\WebContent\WEB-INF\lib\saaj.jar;C:\Users\Olga\workspace\people\WebContent
WEB-INF\lib\wsdl4j.jar;C:\Users\Olga\workspace\people\build'
'-jar'
'C:\Users\Olga\workspace\people\build\People.jar'

The ' characters around the executable and arguments are
not part of the command.
     [java] java.lang.NoClassDefFoundError: org/restlet/resource/ServerResource
     [java]     at java.lang.ClassLoader.defineClass1(Native Method)
     [java]     at java.lang.ClassLoader.defineClass(ClassLoader.java:791)
     [java]     at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
     [java]     at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
     [java]     at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
     [java]     at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
     [java]     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
     [java]     at java.security.AccessController.doPrivileged(Native Method)
     [java]     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
     [java]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
     [java]     at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:476)
     [java] Caused by: java.lang.ClassNotFoundException: org.restlet.resource.ServerResource
     [java]     at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
     [java]     at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
     [java]     at java.security.AccessController.doPrivileged(Native Method)
     [java]     at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
     [java]     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
     [java]     at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
     [java]     ... 13 more
     [java] Exception in thread "main"
     [java] Java Result: 1

BUILD SUCCESSFUL
Total time: 1 second

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信息中有线索：

使用“jar”时，将忽略属性类路径设置

您需要在jar文件清单中使用classpath属性，或者将jar文件作为类路径的一部分包括在内，只需指定要执行的类名即可