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我试图建立与MySQL服务器（本地主机）pentaho连接。但是，此错误“ConnectionServiceImpl.ERROR_0009 - 连接数据库[空]失败”当我尝试测试连接时出现。有关服务器的信息应该是正确的。 资料图片： 
Pentaho错误 - ConnectionServiceImpl.ERROR_0009 - 连接数据库[空]失败
[我在MySQL的root帐号没有密码]在Pentaho服务器lib文件夹已经insered和MySQL连接器文件。
连接器文件夹图片： 
我看了日志文件，我发现这对我的连接测试：
2017-07-08 17:12:02,915 ERROR [org.pentaho.platform.dataaccess.datasource.wizard.service.impl.ConnectionServiceImpl] Error Start: Pentaho pentaho-platform-core 7.1.0.0-12
2017-07-08 17:12:02,915 ERROR [org.pentaho.platform.dataaccess.datasource.wizard.service.impl.ConnectionServiceImpl] ::: Can't get connection from Pool
org.pentaho.platform.api.data.DBDatasourceServiceException: java.lang.RuntimeException: PooledDatasourceHelper.ERROR_0009 - Unable to pool Data Source [ Data_Warehouse_Incidenti ]. Cannot initialize org.gjt.mm.mysql.Driver.
at org.pentaho.platform.engine.services.connection.datasource.dbcp.PooledDatasourceHelper.setupPooledDataSource(PooledDatasourceHelper.java:319)
at org.pentaho.platform.plugin.services.connections.sql.SQLConnection.initDataSource(SQLConnection.java:581)
at org.pentaho.platform.plugin.services.connections.sql.SQLConnection.connect(SQLConnection.java:597)
at org.pentaho.platform.plugin.services.connections.sql.SQLConnection.setProperties(SQLConnection.java:108)
at org.pentaho.platform.engine.services.connection.PentahoConnectionFactory.getConnection(PentahoConnectionFactory.java:124)
at org.pentaho.platform.dataaccess.datasource.wizard.service.impl.ConnectionServiceImpl.testConnection(ConnectionServiceImpl.java:323)
at org.pentaho.platform.dataaccess.datasource.wizard.service.impl.ConnectionService.testConnection(ConnectionService.java:240)
at sun.reflect.GeneratedMethodAccessor367.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$ResponseOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:205)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:409)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:558)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:733)
at org.pentaho.platform.web.servlet.JAXRSPluginServlet.service(JAXRSPluginServlet.java:112)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.pentaho.platform.web.servlet.JAXRSPluginServlet.service(JAXRSPluginServlet.java:117)
at org.pentaho.platform.web.servlet.PluginDispatchServlet.service(PluginDispatchServlet.java:89)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.pentaho.platform.web.http.filters.PentahoWebContextFilter.doFilter(PentahoWebContextFilter.java:195)
at com.pentaho.platform.web.http.filters.PentahoEnterpriseWebContextFilter.doFilter(SourceFile:87)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.pentaho.platform.web.http.filters.PentahoRequestContextFilter.doFilter(PentahoRequestContextFilter.java:87)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.pentaho.platform.web.http.security.RequestParameterAuthenticationFilter.doFilter(RequestParameterAuthenticationFilter.java:191)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:158)
at org.pentaho.platform.web.http.security.PentahoBasicProcessingFilter.doFilterInternal(PentahoBasicProcessingFilter.java:125)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.pentaho.platform.web.http.filters.HttpSessionPentahoSessionIntegrationFilter.doFilter(HttpSessionPentahoSessionIntegrationFilter.java:271)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:169)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at com.pentaho.ui.servlet.SystemStatusFilter.doFilter(SourceFile:87)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.pentaho.platform.web.http.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:114)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.pentaho.platform.web.http.filters.WebappRootForwardingFilter.doFilter(WebappRootForwardingFilter.java:70)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.pentaho.platform.web.http.filters.PentahoPathDecodingFilter.doFilter(PentahoPathDecodingFilter.java:34)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:212)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:94)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:141)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:620)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:502)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1132)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:684)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2521)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2510)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: PooledDatasourceHelper.ERROR_0009 - Unable to pool Data Source [ Data_Warehouse_Incidenti ]. Cannot initialize org.gjt.mm.mysql.Driver.
at org.pentaho.platform.engine.services.connection.datasource.dbcp.PooledDatasourceHelper.setupPooledDataSource(PooledDatasourceHelper.java:167)
... 96 more
2017-07-08 17:12:02,917 ERROR [org.pentaho.platform.dataaccess.datasource.wizard.service.impl.ConnectionServiceImpl] Error end:
我已经看了许多解决方案，但我还没有找到任何东西。它缺少什么？
当你使用Error_0009时，它会成为最受欢迎的问题。 - 你为什么不使用MySQL数据库类型？ - 如果您需要通用数据库连接，请检查您的Driver.class。 mysql-conector-java包含两个驱动程序：com.mysql.jdbc.Driver和org.gjt.mm.mysql.Driver。通过提供提示帮助水壶。 – AlainD
原因MySQL数据库类型没有出现在我的列表中。我已经按照所有程序安装它，没有任何结果。我也试图从提示中做到这一点，但没有发生任何事情。 –