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调用Servlet出现这个异常要怎么解决

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0 | 2021-1-27 05:14:21 | 显示全部楼层 |阅读模式

严重:AllocateexceptionforservletsearchProcductServlet
java.lang.InstantiationException
atsun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:30)
atjava.lang.reflect.Constructor.newInstance(Constructor.java:513)
atjava.lang.Class.newInstance0(Class.java:355)
atjava.lang.Class.newInstance(Class.java:308)
atorg.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1116)
atorg.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:809)
atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
atorg.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
atorg.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
atorg.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
atjava.lang.Thread.run(Thread.java:619)

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