我只想尝试在Oracle XE DB上连接到HR模式的简单数据服务。我刚刚用一个操作编写了一个简单的查询，它接受一个输入参数并根据传递的绑定数据相应地得到结果。
我的查询如下所示
SELECT first_name,last_name,email,phone_number,hire_date,salary
FROM employees
WHERE first_name like :Bind_name
我添加了一个输入变量Bind_name，并在我请求服务时传递它。
但是，当我触发服务时，我看到以下错误，无法在网上找到相关帮助。
[2012-06-13 12:42:08,101] ERROR {org.wso2.carbon.dataservices.core.description.query.SQLQuery} - org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.setStringValue(SQLQuery.java:1943)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.setParamInPreparedStatement(SQLQuery.java:1411)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.createProcessedPreparedStatement(SQLQuery.java:1380)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.processNormalQuery(SQLQuery.java:802)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.runQuery(SQLQuery.java:2069)
at org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:252)
at org.wso2.carbon.dataservices.core.engine.CallQuery.execute(CallQuery.java:185)
at org.wso2.carbon.dataservices.core.engine.CallQueryGroup.execute(CallQueryGroup.java:110)
at org.wso2.carbon.dataservices.core.description.operation.Operation.execute(Operation.java:71)
at org.wso2.carbon.dataservices.core.engine.DataService.invoke(DataService.java:592)
at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:99)
at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.serialize(DSOMDataSource.java:110)
at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.internalSerialize(OMSourcedElementImpl.java:691)
at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeChildren(OMSerializerUtil.java:563)
at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:875)
at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.serializeInternally(SOAPEnvelopeImpl.java:283)
at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(SOAPEnvelopeImpl.java:245)
at org.apache.axiom.om.impl.llom.OMSerializableImpl.serializeAndConsume(OMSerializableImpl.java:193)
at org.apache.axis2.transport.http.SOAPMessageFormatter.writeTo(SOAPMessageFormatter.java:74)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.sendUsingOutputStream(CommonsHTTPTransportSender.java:409)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:286)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443)
at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:45)
at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at org.wso2.carbon.core.transports.CarbonServlet.doPost(CarbonServlet.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.wso2.carbon.bridge.BridgeServlet.service(BridgeServlet.java:164)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.wso2.carbon.server.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:154)
at org.wso2.carbon.server.TomcatServer$1.invoke(TomcatServer.java:254)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:396)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:356)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1534)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
[2012-06-13 12:42:08,106] ERROR {org.wso2.carbon.dataservices.core.engine.DataService} - DS Fault Message: Error in 'SQLQuery.processNormalQuery'
DS Code: DATABASE_ERROR
Source Data Service:-
Name: EmployeeService
Location: \EmployeeService.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: findByEmployeeNameLike
Current Params: {Bind_name=S%}
Nested Exception:-
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
DS Fault Message: Error in 'SQLQuery.processNormalQuery'
DS Code: DATABASE_ERROR
Source Data Service:-
Name: EmployeeService
Location: \EmployeeService.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: findByEmployeeNameLike
Current Params: {Bind_name=S%}
Nested Exception:-
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.processNormalQuery(SQLQuery.java:844)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.runQuery(SQLQuery.java:2069)
at org.wso2.carbon.dataservices.core.description.query.Query.execute(Query.java:252)
at org.wso2.carbon.dataservices.core.engine.CallQuery.execute(CallQuery.java:185)
at org.wso2.carbon.dataservices.core.engine.CallQueryGroup.execute(CallQueryGroup.java:110)
at org.wso2.carbon.dataservices.core.description.operation.Operation.execute(Operation.java:71)
at org.wso2.carbon.dataservices.core.engine.DataService.invoke(DataService.java:592)
at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:99)
at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.serialize(DSOMDataSource.java:110)
at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.internalSerialize(OMSourcedElementImpl.java:691)
at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeChildren(OMSerializerUtil.java:563)
at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:875)
at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.serializeInternally(SOAPEnvelopeImpl.java:283)
at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(SOAPEnvelopeImpl.java:245)
at org.apache.axiom.om.impl.llom.OMSerializableImpl.serializeAndConsume(OMSerializableImpl.java:193)
at org.apache.axis2.transport.http.SOAPMessageFormatter.writeTo(SOAPMessageFormatter.java:74)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.sendUsingOutputStream(CommonsHTTPTransportSender.java:409)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:286)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443)
at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:45)
at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at org.wso2.carbon.core.transports.CarbonServlet.doPost(CarbonServlet.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.wso2.carbon.bridge.BridgeServlet.service(BridgeServlet.java:164)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.wso2.carbon.server.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:154)
at org.wso2.carbon.server.TomcatServer$1.invoke(TomcatServer.java:254)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:396)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:356)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1534)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.setStringValue(SQLQuery.java:1943)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.setParamInPreparedStatement(SQLQuery.java:1411)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.createProcessedPreparedStatement(SQLQuery.java:1380)
at org.wso2.carbon.dataservices.core.description.query.SQLQuery.processNormalQuery(SQLQuery.java:802)
... 50 more
[2012-06-13 12:42:08,110] ERROR {org.apache.axis2.transport.http.CommonsHTTPTransportSender} - DS Fault Message: Error in 'SQLQuery.processNormalQuery'
DS Code: DATABASE_ERROR
Source Data Service:-
Name: EmployeeService
Location: \EmployeeService.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: findByEmployeeNameLike
Current Params: {Bind_name=S%}
Nested Exception:-
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
org.apache.axis2.AxisFault: DS Fault Message: Error in 'SQLQuery.processNormalQuery'
DS Code: DATABASE_ERROR
Source Data Service:-
Name: EmployeeService
Location: \EmployeeService.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: findByEmployeeNameLike
Current Params: {Bind_name=S%}
Nested Exception:-
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
at org.apache.axis2.transport.http.SOAPMessageFormatter.writeTo(SOAPMessageFormatter.java:78)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.sendUsingOutputStream(CommonsHTTPTransportSender.java:409)
at org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:286)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443)
at org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:45)
at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:181)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at org.wso2.carbon.core.transports.CarbonServlet.doPost(CarbonServlet.java:199)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:67)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.wso2.carbon.bridge.BridgeServlet.service(BridgeServlet.java:164)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.wso2.carbon.server.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:154)
at org.wso2.carbon.server.TomcatServer$1.invoke(TomcatServer.java:254)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
at org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:396)
at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:356)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1534)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.xml.stream.XMLStreamException: DS Fault Message: Error in 'SQLQuery.processNormalQuery'
DS Code: DATABASE_ERROR
Source Data Service:-
Name: EmployeeService
Location: \EmployeeService.dbs
Description: N/A
Default Namespace: http://ws.wso2.org/dataservice
Current Request Name: findByEmployeeNameLike
Current Params: {Bind_name=S%}
Nested Exception:-
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement cannot be cast to java.sql.CallableStatement
at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.execute(DSOMDataSource.java:105)
at org.wso2.carbon.dataservices.core.engine.DSOMDataSource.serialize(DSOMDataSource.java:110)
at org.apache.axiom.om.impl.llom.OMSourcedElementImpl.internalSerialize(OMSourcedElementImpl.java:691)
at org.apache.axiom.om.impl.util.OMSerializerUtil.serializeChildren(OMSerializerUtil.java:563)
at org.apache.axiom.om.impl.llom.OMElementImpl.internalSerialize(OMElementImpl.java:875)
at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.serializeInternally(SOAPEnvelopeImpl.java:283)
at org.apache.axiom.soap.impl.llom.SOAPEnvelopeImpl.internalSerialize(SOAPEnvelopeImpl.java:245)
at org.apache.axiom.om.impl.llom.OMSerializableImpl.serializeAndConsume(OMSerializableImpl.java:193)
at org.apache.axis2.transport.http.SOAPMessageFormatter.writeTo(SOAPMessageFormatter.java:74)
... 35 more
答案 0 :(得分：0)
在这里找到我使用的.dbs文件，
<data name="DDD">
<config id="ds1">
<property name="org.wso2.ws.dataservice.driver">oracle.jdbc.driver.OracleDriver</property>
<property name="org.wso2.ws.dataservice.protocol">jdbc:oracle:thin:@localhost:1521/xe</property>
<property name="org.wso2.ws.dataservice.user">xxx</property>
<property name="org.wso2.ws.dataservice.password">xxx</property>
</config>
<query id="q1" useConfig="ds1">
<sql>select EMPLOYEENUMBER from employees where LASTNAME like :Bind_name</sql>
<result element="Entries" rowName="Entry">
<element name="EMPLOYEENUMBER" column="EMPLOYEENUMBER" xsdType="xs:string" />
</result>
<param name="Bind_name" sqlType="STRING" />
</query>
<operation name="op1">
<call-query href="q1">
<with-param name="Bind_name" query-param="Bind_name" />
</call-query>
</operation>
</data>
请求是，
<p:op1 xmlns:p="http://ws.wso2.org/dataservice">
<!--Exactly 1 occurrence-->
<p:Bind_name>d%</p:Bind_name>
</p:op1>
按预期正常工作。你也可以发布你的dbs文件吗？