類未找到異常-Eclipse

我有2個eclipse項目A和B. A是一個web項目。我試圖從項目AI的控制器調用項目B中的類添加了jar的proj B構建路徑項目A. 項目是編譯錯誤free.But我得到如下的運行時異常：類未找到異常-Eclipse

SEVERE: Servlet.service() for servlet [com.tcs.ibm.Controller] in context with path [/TextAnalytics] threw exception [Servlet execution threw an exception] with root cause 
java.lang.ClassNotFoundException: com.tcs.ibm.Hello 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1688) 
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1533) 
    at com.tcs.ibm.Controller.doPost(Controller.java:45) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:641) 
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) 
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539) 
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) 
    at java.lang.Thread.run(Thread.java:662) 
input is fff

來源

2012-08-02 Priya

您是否將項目B jar放在/ WEB-INF/lib下？ – Patton 2012-08-02 13:03:16

看來類com.tcs.ibm.Hello是不存在classpath作爲解決由@Patton把它上面包含你的jar文件在WEB-INF/lib中重新安裝並重新啓動服務器。

來源

2012-08-02 13:04:40 amicngh

類未找到異常-Eclipse

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