我在一个.w页面的第一个DIV里面放第一个chart图表插件，程序正常运行没有问题。。
但是当我再另建一个后，图表无法加载出来，并且编译器控制台报错。错误如下
java.lang.IllegalArgumentException: Width (0) and height (0) cannot be <= 0
at java.awt.image.DirectColorModel.createCompatibleWritableRaster(DirectColorModel.java:1016)
at java.awt.image.BufferedImage.<init>(BufferedImage.java:333)
at org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1394)
at org.jfree.chart.JFreeChart.createBufferedImage(JFreeChart.java:1376)
at org.jfree.chart.ChartUtilities.writeChartAsPNG(ChartUtilities.java:169)
at org.jfree.chart.ChartUtilities.saveChartAsPNG(ChartUtilities.java:305)
at org.jfree.chart.servlet.ServletUtilities.saveChartAsPNG(ServletUtilities.java:187)
at com.justep.chart.JustepChartHelper.executeChart(Unknown Source)
at com.justep.report.core.XReportChartHelper.executeChart(Unknown Source)
at com.justep.report.core.XReportHelper.a(Unknown Source)
at com.justep.report.core.XReportHelper.executeXReport(Unknown Source)
at com.justep.report.controller.ReportController.execute(Unknown Source)
at com.justep.report.controller.GenericControllerChain.execute(Unknown Source)
at com.justep.report.controller.DataController.execute(Unknown Source)
at com.justep.report.controller.GenericControllerChain.execute(Unknown Source)
at com.justep.report.controller.InitController.execute(Unknown Source)
at com.justep.report.controller.GenericControllerChain.execute(Unknown Source)
at com.justep.report.Servlet.a(Unknown Source)
at com.justep.report.Servlet.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:643)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
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.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:745)
java.lang.UnsupportedOperationException: Method failed: HTTP/1.1 500 Internal Server Error
at com.justep.res.proxy.ResourceProxy.a(Unknown Source)
at com.justep.res.proxy.ResourceProxy.doPost(Unknown Source)
at com.justep.res.proxy.ResourceProxy.doGet(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.justep.portal.filter.RedirectFilter.doFilter(Unknown Source)
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:745)
一月 18, 2018 2:54:48 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet display-chart-servlet threw exception
javax.servlet.ServletException: Chart image not found
at org.jfree.chart.servlet.DisplayChart.service(DisplayChart.java:149)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
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.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:745)
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发表于 2018-1-18 14:56:53
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