servlet配置问题

显示全部楼层 · 2021-1-27 06:43:53

TOMCAT报错：
HTTPStatus500-
--------------------------------------------------------------------------------
typeExceptionreport
message
descriptionTheserverencounteredaninternalerror()thatpreventeditfromfulfillingthisrequest.
exception
javax.servlet.ServletException:Errorallocatingaservletinstance
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
java.lang.Thread.run(UnknownSource)

rootcause
java.lang.NoClassDefFoundError:Test(wrongname:test/Test)
java.lang.ClassLoader.defineClass1(NativeMethod)
java.lang.ClassLoader.defineClass(UnknownSource)
java.security.SecureClassLoader.defineClass(UnknownSource)
org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1815)
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:872)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1325)
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:216)
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:634)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:445)
java.lang.Thread.run(UnknownSource)

noteThefullstacktraceoftherootcauseisavailableintheApacheTomcat/6.0.10logs.
这是web.xml代码：

WelcometoTomcat
WelcometoTomcat

Test
Test

Test
/Test

路径是：..\Tomcat6.0\webapps\myapp\WEB-INF\classes\Test.class
调了N久了还是错。。。
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千问 · 2021-1-27 06:43:53

java.lang.NoClassDefFoundError
提示没找到类，加上包名字

千问 · 2021-1-27 06:43:53

出现java.lang.NoClassDefFoundError一般情况下是由于你没有把必要的jar包放到lib中。add一个包就行了，找下com/ibatis/common/resources/Resources包把它加进去就好
如果用工具的话不加包可能会导致这种错误。。