折线图怎么做

shanyao

请问一下折线统计图怎么做，有例子吗？

jishuang

/UI2/demo/report/process/chart/lineChart.w

shanyao

jishuang 发表于 2018-1-18 16:10
/UI2/demo/report/process/chart/lineChart.w

我按照demo的例子做了一个，但它报这个错，怎么才能解决

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)
一月 19, 2018 11:31:19 上午 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)

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)

jishuang

页面中发了几个chart？

shanyao

jishuang 发表于 2018-1-19 11:47
页面中发了几个chart？

1个

jishuang

宽和高设置的是100%吗？

shanyao

jishuang 发表于 2018-1-19 13:25
宽和高设置的是100%吗？

设的是固定数值

jishuang

把.w发一下看看

shanyao

jishuang 发表于 2018-1-19 14:53
把.w发一下看看

extension.zip (2.25 KB, 下载次数: 87)

2018-1-19 15:14 上传

点击文件名下载附件

jishuang

把chart的autoLoad设置为false
在tabs组件的onselect判断是切换到图表所在的tab页时调用chart的refresh()看看
http://docs.wex5.com/tabs10005/