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HTTP状态500 - 内部服务器错误
输入例外报告
消息在第[5]行处理JSP页面[/index.jsp]时发生异常
说明服务器遇到意外情况，无法满足请求。
例外
org.apache.jasper.JasperException：在第[5]行处理JSP页面[/index.jsp]时发生异常
2：pageEncoding =“UTF-8”3：
4： 5：<jsp:forward page="/ emps"></jsp:forward>6： 7： 8：堆栈跟踪：
org.apache.jasper.servlet.JspServletWrapper.handleJspException（JspServletWrapper.java:617）org.apache.jasper.servlet.JspServletWrapper.service（JspServletWrapper.java:499）org.apache.jasper.servlet.JspServlet.serviceJspFile（JspServlet.java:386）org.apache.jasper.servlet.JspServlet.service（JspServlet.java:330）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:200）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）
根本原因：
javax.servlet.ServletException：servlet [dispatcherServlet]的Servlet.init（）抛出异常
org.apache.jasper.runtime.PageContextImpl.doForward（PageContextImpl.java:742）org.apache.jasper.runtime.PageContextImpl.forward（PageContextImpl.java:712）org.apache.jsp.index_jsp._jspService（index_jsp.java:113）org.apache.jasper.runtime.HttpJspBase.service（HttpJspBase.java:70）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.jasper.servlet.JspServletWrapper.service（JspServletWrapper.java:476）org.apache.jasper.servlet.JspServlet.serviceJspFile（JspServlet.java:386）org.apache.jasper.servlet.JspServlet.service（JspServlet.java:330）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:200）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）
根本原因：
org.springframework.beans.factory.BeanCreationException：创建名为’org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping’的bean时出错：init方法的调用失败; 嵌套异常是java.lang.IllegalStateException：不明确的映射。无法映射’employeeController’方法
public com.github.pagehelper.PageInfo com.atguigu.crud.controller.EmployeeController.getEmpsWithJson（java.lang.Integer）到 {/ emps}：已有’employeeController’bean方法
public java.lang.String com.atguigu.crud.controller.EmployeeController.getEmps（java.lang.Integer，org.springframework.ui.Model）已映射。
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1804）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1741）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:576）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:498）org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0（AbstractBeanFactory.java:320）org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:222）org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:318）org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:199）org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:846）org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:863）org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:546）org.springframework.web.servlet/FrameworkServlet.configureAndRefreshWebApplicationContext（FrameworkServlet.java:701）org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext（FrameworkServlet.java:667）org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext（FrameworkServlet.java:715）org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext（FrameworkServlet.java:590）org.springframework.web.servlet.FrameworkServlet.initServletBean（FrameworkServlet.java:529）org.springframework.web.servlet.HttpServletBean.init（HttpServletBean.java:169）javax.servlet.GenericServlet.init（GenericServlet.java:158）org.apache.jasper.runtime.PageContextImpl.doForward（PageContextImpl.java:742）org.apache.jasper.runtime.PageContextImpl.forward（PageContextImpl.java:712）org.apache.jsp.index_jsp._jspService（index_jsp.java:113）org.apache.jasper.runtime.HttpJspBase.service（HttpJspBase.java:70）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.jasper.servlet.JspServletWrapper.service（JspServletWrapper.java:476）org.apache.jasper.servlet.JspServlet.serviceJspFile（JspServlet.java:386）org.apache.jasper.servlet.JspServlet.service（JspServlet.java:330）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:200）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）
根本原因：
java.lang.IllegalStateException：不明确的映射。无法映射’employeeController’方法
public com.github.pagehelper.PageInfo com.atguigu.crud.controller.EmployeeController.getEmpsWithJson（java.lang.Integer）到 {/ emps}：已有’employeeController’bean方法
public java.lang.String com.atguigu.crud.controller.EmployeeController.getEmps（java.lang.Integer，org.springframework.ui.Model）已映射。
org.springframework.web.servlet.handler.AbstractHandlerMethodMapping $ MappingRegistry.assertUniqueMethodMapping（AbstractHandlerMethodMapping.java:621）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping $ MappingRegistry.register（AbstractHandlerMethodMapping.java:589）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.registerHandlerMethod（AbstractHandlerMethodMapping.java:315）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.lambda $ detectHandlerMethods $ 1（AbstractHandlerMethodMapping.java:282）java.util.LinkedHashMap.forEach（LinkedHashMap.java:684）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.detectHandlerMethods（AbstractHandlerMethodMapping.java:280）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.processCandidateBean（AbstractHandlerMethodMapping.java:252）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.initHandlerMethods（AbstractHandlerMethodMapping.java:211）org.springframework.web.servlet.handler.AbstractHandlerMethodMapping.afterPropertiesSet（AbstractHandlerMethodMapping.java:199）org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.afterPropertiesSet（RequestMappingHandlerMapping.java:164）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods（AbstractAutowireCapableBeanFactory.java:1804）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean（AbstractAutowireCapableBeanFactory.java:1741）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean（AbstractAutowireCapableBeanFactory.java:576）org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean（AbstractAutowireCapableBeanFactory.java:498）org.springframework.beans.factory.support.AbstractBeanFactory.lambda $ doGetBean $ 0（AbstractBeanFactory.java:320）org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton（DefaultSingletonBeanRegistry.java:222）org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean（AbstractBeanFactory.java:318）org.springframework.beans.factory.support.AbstractBeanFactory.getBean（AbstractBeanFactory.java:199）org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons（DefaultListableBeanFactory.java:846）org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization（AbstractApplicationContext.java:863）org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:546）org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext（FrameworkServlet.java:701）org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext（FrameworkServlet.java:667）org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext（FrameworkServlet.java:715）org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext（FrameworkServlet.java:590）org.springframework.web.servlet.FrameworkServlet.initServletBean（FrameworkServlet.java:529）org.springframework.web.servlet.HttpServletBean.init（HttpServletBean.java:169）javax.servlet.GenericServlet.init（GenericServlet.java:158）org.apache.jasper.runtime.PageContextImpl.doForward（PageContextImpl.java:742）org.apache.jasper.runtime.PageContextImpl.forward（PageContextImpl.java:712）org.apache.jsp.index_jsp._jspService（index_jsp.java:113）org.apache.jasper.runtime.HttpJspBase.service（HttpJspBase.java:70）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.jasper.servlet.JspServletWrapper.service（JspServletWrapper.java:476）org.apache.jasper.servlet.JspServlet.serviceJspFile（JspServlet.java:386）org.apache.jasper.servlet.JspServlet.service（JspServlet.java:330）javax.servlet.http.HttpServlet.service（HttpServlet.java:742）org.apache.tomcat.websocket.server.WsFilter.doFilter（WsFilter.java:52）org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal（HiddenHttpMethodFilter.java:93）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal（CharacterEncodingFilter.java:200）org.springframework.web.filter.OncePerRequestFilter.doFilter（OncePerRequestFilter.java:107）
Apache Tomcat / 8.5.41
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