无法加载JDBC驱动程序com.sqlserver.jdbc.Driver

Question

安装和配置Pentaho的蒙德里安下面的异常被抛出（完整的堆栈跟踪）

我使用的是SQL Server驱动程序4.0

COM后。 tonbeller.jpivot.olap.model.OlapException：无法加载JDBC驱动程序com.sqlserver.jdbc.Driver

com.tonbeller.jpivot.olap.model.OlapException: Could not load Jdbc Driver com.sqlserver.jdbc.Driver 
at com.tonbeller.jpivot.mondrian.MondrianModel.initialize(MondrianModel.java:455) 
at com.tonbeller.jpivot.olap.model.OlapModelDecorator.initialize(OlapModelDecorator.java:132) 
at com.tonbeller.jpivot.tags.OlapModelProxy$MyState.initialize(OlapModelProxy.java:77) 
at com.tonbeller.jpivot.tags.StackStateManager.initializeAndShow(StackStateManager.java:76) 
at com.tonbeller.jpivot.tags.OlapModelProxy.initializeAndShow(OlapModelProxy.java:160) 
at com.tonbeller.jpivot.tags.OlapModelTag.doEndTag(OlapModelTag.java:81) 
at org.apache.jsp.WEB_002dINF.queries.colors_jsp._jspx_meth_jp_005fmondrianQuery_005f0(colors_jsp.java:127) 
at org.apache.jsp.WEB_002dINF.queries.colors_jsp._jspService(colors_jsp.java:69) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388) 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646) 
at org.apache.catalina.core.ApplicationDispatcher.doInclude(ApplicationDispatcher.java:551) 
at org.apache.catalina.core.ApplicationDispatcher.include(ApplicationDispatcher.java:488) 
at com.tonbeller.wcf.utils.IncludeTag.doStartTag(IncludeTag.java:59) 
at org.apache.jsp.testpage_jsp._jspx_meth_wcf_005finclude_005f0(testpage_jsp.java:287) 
at org.apache.jsp.testpage_jsp._jspService(testpage_jsp.java:127) 
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388) 
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) 
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at com.tonbeller.wcf.controller.RequestFilter$MyHandler.normalRequest(RequestFilter.java:139) 
at com.tonbeller.wcf.controller.RequestSynchronizer.handleRequest(RequestSynchronizer.java:127) 
at com.tonbeller.wcf.controller.RequestFilter.doFilter(RequestFilter.java:263) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606) 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) 
at java.lang.Thread.run(Thread.java:744) 

下面是我mondrian.properties

mondrian.rolap.aggregates.Use=true 
mondrian.rolap.aggregates.Read=true 
mondrian.native.topcount.enable=true 
mondrian.native.filter.enable=true 
mondrian.result.limit=50000 

Provider=Mondrian:Jdbc=jdbc:sqlserver://localhost:1433;databaseName=foodmart;Catalog=/WEB-INF/queries/FoodMart.xml;JdbcDrivers=com.microsoft.sqlserver.jdbc.SQLServerDriver; 

下面是我的web.xml

<context-param> 
<param-name>connectString</param-name> 
<param-value>Provider=Mondrian;Jdbc=jdbc:sqlserver://localhost/foodmart;JdbcUser=sa;JdbcPassword=adminpassword; Catalog=/WEB-INF/queries/FoodMart.xml;JdbcDrivers=com.microsoft.sqlserver.jdbc.SQLServerDriver;</param-value> 
</context-param> 

下面是我datasources.xml

<DataSourceInfo>Provider=Mondrian:Jdbc=jdbc:sqlserver://localhost:1433;JdbcUser=sa;JdbcPassword=adminpassword;Catalog=/WEB-INF/queries/FoodMart.xml;JdbcDrivers=com.microsoft.sqlserver.jdbc.SQLServerDriver; </DataSourceInfo> 
<ProviderName>Mondrian</ProviderName> 
<ProviderType>MDP</ProviderType> 

我已经在\webapps\mondrian\WEB-INF\lib文件夹

保持JDBC驱动程序（jar文件）

Answer 1

MSSQL驱动程序的正确类名是com.microsoft.sqlserver.jdbc.SQLServerDriver。我建议你在你的项目中搜索文本com.sqlserver.jdbc.Driver，并用正确的类名替换它。

另外，至于我jTDS驱动程序证明比MS自己的驱动程序工作得更好。