包
com.xzg
下 有个 UploadServlet.java用到的配置文件:
web.xml
<servlet>
<servlet-name>UploadServlet</servlet-name>
<servlet-class>com.xzg.UploadServlet</servlet-class>
</servlet> <servlet-mapping>
<servlet-name>UploadServlet</servlet-name>
<url-pattern>/servlet/UploadServlet</url-pattern>
</servlet-mapping>在jsp文件
uploadFile.jsp中, 有语句
<form action="<%=request.getContextPath()%>/servlet/UploadServlet"
该语句,可以正常调用UploadServlet
我现在需要 ,把包名 改为: java.com.xzg
我就: 1,修改了包名; 2,也相应的修改了 web.xml 中, <servlet-class>java.com.xzg.UploadServlet</servlet-class>
点击提交按钮,调用UploadServlet时报错:
java.lang.ClassNotFoundException: java.com.xzg.UploadServlet
请帮忙给看看,答对,马上送上50分,回答就给分
com.xzg
下 有个 UploadServlet.java用到的配置文件:
web.xml
<servlet>
<servlet-name>UploadServlet</servlet-name>
<servlet-class>com.xzg.UploadServlet</servlet-class>
</servlet> <servlet-mapping>
<servlet-name>UploadServlet</servlet-name>
<url-pattern>/servlet/UploadServlet</url-pattern>
</servlet-mapping>在jsp文件
uploadFile.jsp中, 有语句
<form action="<%=request.getContextPath()%>/servlet/UploadServlet"
该语句,可以正常调用UploadServlet
我现在需要 ,把包名 改为: java.com.xzg
我就: 1,修改了包名; 2,也相应的修改了 web.xml 中, <servlet-class>java.com.xzg.UploadServlet</servlet-class>
点击提交按钮,调用UploadServlet时报错:
java.lang.ClassNotFoundException: java.com.xzg.UploadServlet
请帮忙给看看,答对,马上送上50分,回答就给分
2、最好编译一下,有时候eclipse自动编译没有编译把你的 bug code 全贴出来 看看
不用绝对路径
信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\MyEclipse 6.0\bin;C:\Program Files\MyEclipse 6.0\myeclipse\eclipse\plugins\com.genuitec.eclipse.easie.tomcat.myeclipse_6.0.0.zmyeclipse60020070820\tomcat\bin
2008-12-9 14:39:17 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2008-12-9 14:39:17 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 579 ms
2008-12-9 14:39:17 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2008-12-9 14:39:17 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.13
2008-12-9 14:39:18 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2008-12-9 14:39:18 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2008-12-9 14:39:18 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/32 config=null
2008-12-9 14:39:18 org.apache.catalina.startup.Catalina start
信息: Server startup in 1539 ms
2008-12-9 14:39:27 org.apache.catalina.core.ApplicationContext log
信息: Marking servlet UploadServlet as unavailable
2008-12-9 14:39:27 org.apache.catalina.core.ApplicationContext log
严重: Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
org.apache.catalina.loader.StandardClassLoader@ba6c83
java.com.xzg.UploadServlet
java.lang.ClassNotFoundException: java.com.xzg.UploadServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1083)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
2008-12-9 14:39:27 org.apache.catalina.core.StandardWrapperValve invoke
严重: Allocate exception for servlet UploadServlet
java.lang.ClassNotFoundException: java.com.xzg.UploadServlet
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1083)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
test..xzg.aaa.bb.cc随意测试了好多组 ,都可以
就是 用 java.com.xzg 不行,,,,这是为什么,,,?
包名 为 java.test..xzg.aaa.bb.cc 错误
多次验证,,,以java. 作为包名 就会报错,
报错信息: java.lang.ClassNotFoundException: java.test.xzg.aaa.bb.cc.UploadServlet详细信息,我上面有贴
是不是,,,sun公司的规定呀,,,?太奇怪了,,,这个问题我调试了一天啦 谁能 解释下呀