我正在寻找问题的解决方案。
我的JasperReports Server报告。
我想通过parameterMap将图像传递给此报告。
到目前为止我发现的是我必须将java.awt.Image传递给parameterMap。
这样：
java.awt.Image Image = new Image();
parameterMap.put("IMAGE",Image);
我通过WSClient执行报告。
报告中的输入参数为java.lang.Objec t（例如“IMAGE”）。
<parameter name="IMAGE" class="java.lang.Object"/>
报告中的图片应包含表达式类java.awt.Image和图像表达式 $P{IMAGE} 。
<image onErrorType="Blank">
<reportElement key="image-1" x="440" y="0" width="94" height="118"/>
<box>
<topPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
<leftPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
<bottomPen lineWidth="0.0" lineColor="#000000"/>
<rightPen lineWidth="0.0" lineStyle="Solid" lineColor="#000000"/>
</box>
<imageExpression class="java.awt.Image"><![CDATA[$P{IMAGE}]]></imageExpression>
</image>
此解决方案适用于本地计算机上执行的JasperReports ，但不能通过webservice-client将参数映射传递给JasperReports Server。
我得到以下例外：
ERROR EngineServiceImpl,http-80-9:750 - Error while filling report
net.sf.jasperreports.engine.fill.JRExpressionEvalException: Error evaluating expression :
Source text : $P{IMAGE}
at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:195)
at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:589)
at net.sf.jasperreports.engine.fill.JRCalculator.evaluate(JRCalculator.java:557)
at net.sf.jasperreports.engine.fill.JRFillElement.evaluateExpression(JRFillElement.java:929)
at net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:1023)
at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:1004)
at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:258)
at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:499)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillBandNoOverflow(JRVerticalFiller.java:439)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillPageHeader(JRVerticalFiller.java:403)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReportStart(JRVerticalFiller.java:264)
at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillReport(JRVerticalFiller.java:128)
at net.sf.jasperreports.engine.fill.JRBaseFiller.fill(JRBaseFiller.java:946)
at net.sf.jasperreports.engine.fill.JRFiller.fillReport(JRFiller.java:118)
at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:435)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:773)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:731)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.fillReport(EngineServiceImpl.java:389)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.executeReport(EngineServiceImpl.java:890)
at com.jaspersoft.jasperserver.api.engine.jasperreports.domain.impl.ReportUnitRequest.execute(ReportUnitRequest.java:57)
at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.EngineServiceImpl.execute(EngineServiceImpl.java:320)
at com.jaspersoft.jasperserver.ws.axis2.ManagementServiceImpl.runReport(ManagementServiceImpl.java:1167)
at com.jaspersoft.jasperserver.ws.axis2.ManagementService.runReport(ManagementService.java:240)
at sun.reflect.GeneratedMethodAccessor587.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.axis.providers.java.RPCProvider.invokeMethod(RPCProvider.java:397)
at org.apache.axis.providers.java.RPCProvider.processMessage(RPCProvider.java:186)
at org.apache.axis.providers.java.JavaProvider.invoke(JavaProvider.java:323)
at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)
at org.apache.axis.SimpleChain.doVisiting(SimpleChain.java:118)
at org.apache.axis.SimpleChain.invoke(SimpleChain.java:83)
at org.apache.axis.handlers.soap.SOAPService.invoke(SOAPService.java:453)
at org.apache.axis.server.AxisServer.invoke(AxisServer.java:281)
at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:699)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at org.apache.axis.transport.http.AxisServletBase.service(AxisServletBase.java:327)
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.jaspersoft.jasperserver.war.common.UploadMultipartFilter.doFilter(UploadMultipartFilter.java:83)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:394)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109)
at org.springframework.security.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at org.springframework.security.ui.ExceptionTranslationFilter.doFilterHttp(ExceptionTranslationFilter.java:101)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at org.springframework.security.providers.anonymous.AnonymousProcessingFilter.doFilterHttp(AnonymousProcessingFilter.java:105)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at com.jaspersoft.jasperserver.api.metadata.user.service.impl.MetadataAuthenticationProcessingFilter.doFilter(MetadataAuthenticationProcessingFilter.java:139)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at com.jaspersoft.jasperserver.api.metadata.user.service.impl.PasswordExpirationProcessingFilter.doFilter(PasswordExpirationProcessingFilter.java:85)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at org.springframework.security.ui.basicauth.BasicProcessingFilter.doFilterHttp(BasicProcessingFilter.java:174)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at com.jaspersoft.jasperserver.api.metadata.user.service.impl.JIPortletAuthenticationProcessingFilter.doFilter(JIPortletAuthenticationProcessingFilter.java:81)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at com.jaspersoft.jasperserver.api.logging.filter.BasicLoggingFilter.doFilter(BasicLoggingFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:406)
at org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:185)
at org.springframework.security.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.jaspersoft.jasperserver.war.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:67)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:558)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java.awt.Image
at Onlinebewerbung_1328089933967_573349.evaluate(Onlinebewerbung_1328089933967_573349:235)
at net.sf.jasperreports.engine.fill.JREvaluator.evaluate(JREvaluator.java:182)
... 86 more
2012-02-01 10:52:14,091 ERROR ManagementServiceImpl,http-80-9:1259 - caught Throwable exception: Error evaluating expression :
Source text : $P{IMAGE}
这个问题有任何想法或已知解决方案吗？
祝你好运， 约翰