HTTP Status 500 - Unable to compile class for JSP:

type Exception report

message Unable to compile class for JSP:

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: Unable to compile class for JSP:

An error occurred at line: [14] in the generated java file: [E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\work\Catalina\localhost\yzp5\org\apache\jsp\index_jsp.java]
Only a type can be imported. com.microsoft.sqlserver.jdbc.SQLServerDriver resolves to a package

Stacktrace:
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:366)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:476)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:657)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.54 logs.

Apache Tomcat/7.0.54

type Exception report
message Unable to compile class for JSP:
description The server encountered an internal error that prevented it from fulfilling this request.
exception
org.apache.jasper.......
答案就在这里：HTTP Status 500 - Unable to compile class for JSP
----------------------你好，人类，我是来自CSDN星球的问答机器人小C，以上是依据我对问题的理解给出的答案，如果解决了你的问题，望采纳。

index_jsp第14行有错误

运行的信息显示几个严重，不知道为什么，求解
十月 18, 2015 8:04:52 下午 org.apache.catalina.core.AprLifecycleListener init
信息: Loaded APR based Apache Tomcat Native library 1.1.30 using APR version 1.4.8.
十月 18, 2015 8:04:52 下午 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
十月 18, 2015 8:04:54 下午 org.apache.catalina.core.AprLifecycleListener initializeSSL
信息: OpenSSL successfully initialized (OpenSSL 1.0.1g 7 Apr 2014)
十月 18, 2015 8:04:54 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["http-apr-8080"]
十月 18, 2015 8:04:54 下午 org.apache.coyote.AbstractProtocol init
信息: Initializing ProtocolHandler ["ajp-apr-8009"]
十月 18, 2015 8:04:54 下午 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 3024 ms
十月 18, 2015 8:04:54 下午 org.apache.catalina.core.StandardService startInternal
信息: Starting service Catalina
十月 18, 2015 8:04:54 下午 org.apache.catalina.core.StandardEngine startInternal
信息: Starting Servlet Engine: Apache Tomcat/7.0.54
十月 18, 2015 8:04:54 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\bookstore
十月 18, 2015 8:04:57 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\bookstore has finished in 2,756 ms
十月 18, 2015 8:04:57 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\docs
十月 18, 2015 8:04:57 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\docs has finished in 229 ms
十月 18, 2015 8:04:57 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\examples
十月 18, 2015 8:04:58 下午 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
十月 18, 2015 8:04:58 下午 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
十月 18, 2015 8:04:59 下午 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', 'org.apache.jasper.compiler.TldLocationsCache@439e91fe')
十月 18, 2015 8:04:59 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\examples has finished in 1,055 ms
十月 18, 2015 8:04:59 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\host-manager
十月 18, 2015 8:04:59 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\host-manager has finished in 184 ms
十月 18, 2015 8:04:59 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\jdbc
十月 18, 2015 8:05:02 下午 com.sun.jersey.api.core.WebAppResourceConfig init
信息: Scanning for root resource and provider classes in the Web app resource paths:
/WEB-INF/lib
/WEB-INF/classes
十月 18, 2015 8:05:03 下午 com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
信息: Initiating Jersey application, version 'Jersey: 1.4 09/11/2010 10:30 PM'
十月 18, 2015 8:05:04 下午 com.sun.jersey.server.impl.application.RootResourceUriRules
严重: The ResourceConfig instance does not contain any root resource classes.
十月 18, 2015 8:05:04 下午 org.apache.catalina.core.ApplicationContext log
严重: StandardWrapper.Throwable
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
at com.sun.jersey.server.impl.application.RootResourceUriRules.(RootResourceUriRules.java:103)
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1182)
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$600(WebApplicationImpl.java:161)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:698)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:695)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:197)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:695)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:690)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:438)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:287)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:587)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:213)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:342)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:516)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1247)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1898)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
十月 18, 2015 8:05:04 下午 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet /jdbc threw load() exception
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
at com.sun.jersey.server.impl.application.RootResourceUriRules.(RootResourceUriRules.java:103)
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1182)
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$600(WebApplicationImpl.java:161)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:698)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:695)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:197)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:695)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:690)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:438)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:287)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:587)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:213)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:342)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:516)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1247)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1898)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
十月 18, 2015 8:05:04 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\jdbc has finished in 5,186 ms
十月 18, 2015 8:05:04 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\manager
十月 18, 2015 8:05:04 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\manager has finished in 204 ms
十月 18, 2015 8:05:04 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\ROOT
十月 18, 2015 8:05:04 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\ROOT has finished in 180 ms
十月 18, 2015 8:05:04 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\yzp7
十月 18, 2015 8:05:05 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\yzp7 has finished in 522 ms
十月 18, 2015 8:05:05 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["http-apr-8080"]
十月 18, 2015 8:05:05 下午 org.apache.coyote.AbstractProtocol start
信息: Starting ProtocolHandler ["ajp-apr-8009"]
十月 18, 2015 8:05:05 下午 org.apache.catalina.startup.Catalina start
信息: Server startup in 10485 ms
十月 18, 2015 8:05:09 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [jsp] in context with path [/yzp7] threw exception [Unable to compile class for JSP:

An error occurred at line: [14] in the generated java file: [E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\work\Catalina\localhost\yzp7\org\apache\jsp\index_jsp.java]
Only a type can be imported. com.microsoft.sqlserver.jdbc.SQLServerDriver resolves to a package

Stacktrace:] with root cause
org.apache.jasper.JasperException: Unable to compile class for JSP:

Stacktrace:
at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103)
at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:366)
at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:476)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)
at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:657)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2442)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2431)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:744)
十月 18, 2015 8:09:45 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deploying web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\yzp8
十月 18, 2015 8:09:48 下午 com.sun.jersey.api.core.WebAppResourceConfig init
信息: Scanning for root resource and provider classes in the Web app resource paths:
/WEB-INF/lib
/WEB-INF/classes
十月 18, 2015 8:09:49 下午 com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
信息: Initiating Jersey application, version 'Jersey: 1.4 09/11/2010 10:30 PM'
十月 18, 2015 8:09:50 下午 com.sun.jersey.server.impl.application.RootResourceUriRules
严重: The ResourceConfig instance does not contain any root resource classes.
十月 18, 2015 8:09:50 下午 org.apache.catalina.core.ApplicationContext log
严重: StandardWrapper.Throwable
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
at com.sun.jersey.server.impl.application.RootResourceUriRules.(RootResourceUriRules.java:103)
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1182)
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$600(WebApplicationImpl.java:161)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:698)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:695)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:197)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:695)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:690)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:438)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:287)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:587)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:213)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:342)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:516)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1247)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1898)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)

十月 18, 2015 8:09:50 下午 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet /yzp8 threw load() exception
com.sun.jersey.api.container.ContainerException: The ResourceConfig instance does not contain any root resource classes.
at com.sun.jersey.server.impl.application.RootResourceUriRules.(RootResourceUriRules.java:103)
at com.sun.jersey.server.impl.application.WebApplicationImpl._initiate(WebApplicationImpl.java:1182)
at com.sun.jersey.server.impl.application.WebApplicationImpl.access$600(WebApplicationImpl.java:161)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:698)
at com.sun.jersey.server.impl.application.WebApplicationImpl$12.f(WebApplicationImpl.java:695)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:197)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:695)
at com.sun.jersey.server.impl.application.WebApplicationImpl.initiate(WebApplicationImpl.java:690)
at com.sun.jersey.spi.container.servlet.ServletContainer.initiate(ServletContainer.java:438)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.initiate(ServletContainer.java:287)
at com.sun.jersey.spi.container.servlet.WebComponent.load(WebComponent.java:587)
at com.sun.jersey.spi.container.servlet.WebComponent.init(WebComponent.java:213)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:342)
at com.sun.jersey.spi.container.servlet.ServletContainer.init(ServletContainer.java:516)
at javax.servlet.GenericServlet.init(GenericServlet.java:158)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1247)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1898)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
十月 18, 2015 8:09:50 下午 org.apache.catalina.startup.HostConfig deployDirectory
信息: Deployment of web application directory E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\webapps\yzp8 has finished in 5,168 ms
十月 18, 2015 8:09:53 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [jsp] in context with path [/yzp8] threw exception [Unable to compile class for JSP:

An error occurred at line: [14] in the generated java file: [E:\tomcat7\apache-tomcat-7.0.54-windows-x64\apache-tomcat-7.0.54\work\Catalina\localhost\yzp8\org\apache\jsp\index_jsp.java]
Only a type can be imported. com.microsoft.sqlserver.jdbc.SQLServerDriver resolves to a package

Stacktrace:] with root cause
org.apache.jasper.JasperException: Unable to compile class for JSP:

状态码500错误，服务器发生内部错误，不能服务。不是你代码写错，就是你的服务器部署方面有问题或者其它问题！