youseries / ureport Goto Github PK

您好，开发过程中遇到以下问题：

ureport与基于springboot的业务应用结合，通过nginx访问报表设计器（/ureport/designer）报：Hander [t] not exist，而不通过nginx访问报表设计器则访问正常。

http://host[:port][/context-path]/ureport/excel?_u=报表名称
这个_n加在哪里
预览,导出,这些url在项目中具体是怎么应用的,能不能举个例子.
我们一般会在预览的时候选择导出报表,这个(url)怎么改?我想使用我自己的报表名字

在ureport2中 怎么使用将代码转名称，是使用数据映射吗？如果是，怎么使用呢？

当报表的数据量达到上万条数据后，导出数据到exce时等待了20多分钟还是弹不出下载对话框。

数据在线预览可以预览（速度会比较慢，但是可以预览，导出excel等待了20多分钟还是没有弹出下载对话框）。
   
    服务器内存 32G，tomcat分配内存4G

浏览报表出现 Report cells has cyclic dependency 错误
异常名：CellDependencyException

如图，模板中使用formatnumber函数（格式化数字）,不能进行保存，也不能预览。

如题

如题

如题，

批发经额合计（小写）： | 20 | 批发经额合计（大写）： | 贰拾零

零售经额合计（小写）： | 22.4 | 零售经额合计（大写）： | 贰拾贰点肆

如：_n=name1 而不是 _n=name1.pdf
.pdf通过点击的按钮自动获取。
请问，我自己这边要改的话有接口吗，没接口是不是要改源码。

在报表设计器页面设计好预览时提示 报表预览失败
在于我们框架整合后我们框架后台报错
java.io.NotSerializableException: com.bstek.ureport.definition.ColumnDefinition
观察调用栈我分析原因为
预览时会向httpsession中写东西 我们的框架已经由shiro接管了shiro管理 序列化默认使用jdk序列化对象的方式 由于ureport的ColumnDefinition以及com.bstek.ureport.definition.value.Value接口的几个实现没有实现序列化接口 其中有一个实现间接实现了序列化接口 其他实现均没实现序列化接口比如SimpleValue 导致出错
这是一个很常见的问题 希望对jdk序列化保持友好 都添加一下

看了看源码，已有的分页预览好像不是真正的分页，如果想实现真正的分页，请问有没有接口

生成报表文件后，怎样在view.xml文件里调用报表呢，我随便写了一个路径，报如下错误：
八月 04, 2017 9:13:30 上午 org.apache.jasper.compiler.TldLocationsCache tldScanJar
信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
com.bstek.ureport.exception.ReportComputeException: Report file can not be null.
at com.bstek.ureport.console.html.HtmlPreviewServletAction.loadReport(HtmlPreviewServletAction.java:213)
at com.bstek.ureport.console.html.HtmlPreviewServletAction.execute(HtmlPreviewServletAction.java:74)
at com.bstek.ureport.console.UReportServlet.service(UReportServlet.java:76)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at com.bstek.dorado.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:115)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
八月 04, 2017 9:16:28 上午 com.bstek.ureport.build.ReportBuilder buildReport
信息: Report compute completed:38ms

我想知道生成报表文件后如何正确调用。

在对数据进行计算时，往往要用到avg（D2）函数，而且要对平均值保留两位小数，用round（）。为什么round（avg（D2））用不了。。。而且，avg（D2），即使值是6.25，显示的也是6.25000000，这是我自己写的问题吗？谢谢

ureport2不支持djk1.6版本吗?

小数显示时小数位太多，用格式化后，其他单元格引用有问题

设置了##,###.##，预览界面只有第一行第一列格式化了，导出来的报表只有第一行第一列格式化，但是预览界面跟导出来的还不一致，一个带小数点0一个不带小数点0.

比如编辑数据集的sql时，查询出的列不固定，我想通过参数动态传入一串列名，显示不同的结果。
还有sql语句中的其他部分 比如 from 的表名，group by的字段，也可以通过参数拼装。

例：
select :cols from employee
参数
cols String emp_id,dept_id,emp_name

如题 。无法贴图，我也没办法

ureport2报表设计器如何在表格中使用外部传到报表设计器中时间参数,
比如sql中有时间参数 between :starttime and :endtime,.后台传给报表设计器这两个参数,想在表头上边显示出来这个时间范围.怎么才能把参数取出来,放在表头上边的空格里
能举个 栗子吗?

加载内置数据源时报500错误，打断点，发现访问ureport/datasource/loadBuildinDatasources
在com.bstek.ureport.console.designer.DatasourceServletAction.loadBuildinDatasources方法中执行下面代码报错：
while(var5.hasNext()) { BuildinDatasource datasource = (BuildinDatasource)var5.next(); datasources.add(datasource.name()); }
执行到datasource.name()貌似会去链接数据库，找了半天，并没有发现在哪里连接数据库
错误信息如下：
java.sql.SQLException: Access denied for user 'xueao'@'10.252.0.252' (using password: YES) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:964) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3970) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3906) at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:873) at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1710) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2253) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2284) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2083) at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:806) at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:410) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:328) at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:38) at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:582) at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556) at org.apache.commons.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545) at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388) at org.apache.commons.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044) at org.springframework.jdbc.datasource.DataSourceTransactionManager.doBegin(DataSourceTransactionManager.java:204) at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:373) at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:427) at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:276) at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653) at com.unicom.report.dataSource.MyDataSource$$EnhancerBySpringCGLIB$$c43daec4.name(<generated>) at com.bstek.ureport.console.designer.DatasourceServletAction.loadBuildinDatasources(DatasourceServletAction.java:90) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.bstek.ureport.console.BaseServletAction.invokeMethod(BaseServletAction.java:68) at com.bstek.ureport.console.designer.DatasourceServletAction.execute(DatasourceServletAction.java:74) at com.bstek.ureport.console.UReportServlet.service(UReportServlet.java:76) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.unicom.common.UrlFilter.doFilter(UrlFilter.java:35) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:625) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:498) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1372) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)

当宽度为1000的时候会有变化，但是当宽度为100的时候宽度就不会有变化了

创建模板预约时，用html打印正常，模板创建保存后， http://localhost:8080/jcims/ureport/preview?_u=file:xsd.ureport.xml用这个地址访问，再点击html打印，后台程序报null指针错误

select * from employee where area like :area
此处如果:area参数的默认值为空的时候,将会数据预览失败,无法读取字段. 如果参数传入的值为 上海% 的时候,过滤条件无效
后来此处改为 where area like concat(:area,'%') 之后, area参数默认值%
参数传入值为 上海 时,过滤条件有效
参数传入值为 上海% 时,过滤条件无效

具体的业务需求为 当area为空的时候,显示所有数据,当area为上海的时候,显示所有上海区域的数据.

ureport2 如何和BDF2集成呢

错误信息如下：
2017-08-02 15:03:17,190 ERROR (ContextLoader.java:350) Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dorado.jdbcEngine' defined in class path resource [com/bstek/dorado/jdbc/context.xml]: Initialization of bean failed; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [com.bstek.ureport.export.ExportManagerImpl] for bean with name 'ureport.exportManager' defined in class path resource [ureport-core-context.xml]: problem with class file or dependent class; nested exception is java.lang.IncompatibleClassChangeError: Implementing class
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:564)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:866)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:542)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:443)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:325)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:107)
at com.bstek.dorado.web.servlet.SpringContextLoaderListener.contextInitialized(SpringContextLoaderListener.java:73)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5016)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5528)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.springframework.beans.factory.CannotLoadBeanClassException: Error loading class [com.bstek.ureport.export.ExportManagerImpl] for bean with name 'ureport.exportManager' defined in class path resource [ureport-core-context.xml]: problem with class file or dependent class; nested exception is java.lang.IncompatibleClassChangeError: Implementing class
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1388)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:641)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:609)
at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1484)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:425)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:403)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:389)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1002)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:345)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:340)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1093)
at com.bstek.dorado.jdbc.internal.JdbcEngine.setApplicationContext(JdbcEngine.java:77)
at org.springframework.context.support.ApplicationContextAwareProcessor.invokeAwareInterfaces(ApplicationContextAwareProcessor.java:121)
at org.springframework.context.support.ApplicationContextAwareProcessor.postProcessBeforeInitialization(ApplicationContextAwareProcessor.java:97)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:409)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1620)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555)
... 21 more
Caused by: java.lang.IncompatibleClassChangeError: Implementing class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2957)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1210)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1690)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571)
at org.springframework.util.ClassUtils.forName(ClassUtils.java:250)
at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.java:401)
at org.springframework.beans.factory.support.AbstractBeanFactory.doResolveBeanClass(AbstractBeanFactory.java:1432)
at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.java:1377)
... 37 more
这个项目原先安装过ureport1的jar包，ureport-core-1.1.6.jar，dorado-uploader-1.0.20.jar等都有。
项目没有使用maven

单独求pmax()和max()值显示正常，但是放到判断里就报错了，怎么解决。

com.bstek.ureport.exception.ConvertException: Can not convert 3,3,3,3,3,3,2,2,2,2,2,2,2,2,2,2,2,2 to BigDecimal.

数据源想要只保留内置数据源，其余两个删掉，这种情况是不是需要修改源码

像这种情况，可不可以设置数据全部显示

报表另存为的时候,如果是中文,保存到本地也是中文名称

但是中文名称的报表打开后,再保存,对应的报表名称将变成urlencode 形式的名称.

设计页右上角的名称也是url编码后的文字,有时候又是转码后的文字.

报表中title，来自参数 。并非数据源中。怎样操作。表达式应该怎么写

java.lang.NoClassDefFoundError: org/apache/poi/POIXMLTypeLoader at org.openxmlformats.schemas.spreadsheetml.x2006.main.CTWorkbook$Factory.newInstance(Unknown Source) at org.apache.poi.xssf.usermodel.XSSFWorkbook.onWorkbookCreate(XSSFWorkbook.java:307) at org.apache.poi.xssf.usermodel.XSSFWorkbook.<init>(XSSFWorkbook.java:167) at org.apache.poi.xssf.streaming.SXSSFWorkbook.<init>(SXSSFWorkbook.java:172) at org.apache.poi.xssf.streaming.SXSSFWorkbook.<init>(SXSSFWorkbook.java:143) at org.apache.poi.xssf.streaming.SXSSFWorkbook.<init>(SXSSFWorkbook.java:205) at com.bstek.ureport.export.excel.high.ExcelProducer.doProduce(ExcelProducer.java:77) at com.bstek.ureport.export.excel.high.ExcelProducer.produce(ExcelProducer.java:69) at com.bstek.ureport.console.excel.ExportExcelServletAction.buildExcel(ExportExcelServletAction.java:96) at com.bstek.ureport.console.excel.ExportExcelServletAction.execute(ExportExcelServletAction.java:55) at com.bstek.ureport.console.UReportServlet.service(UReportServlet.java:76) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at com.unicom.common.UrlFilter.doFilter(UrlFilter.java:35) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:625) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:498) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1372) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)

版本是ureport2-console-2.0.7-SNAPSHOT.jar

2.0.8-SNAPSHOT

测试直接写表达式 2/0 预览就报错

2.0.8-SNAPSHOT

现象就是点击在线打印报错“Report preview data has expired,can not do load pages for print”。
UReport都是最新的2.0.9版本。在线打印仍然报数据过期的这个错误。
调试发现，

1. 当打开报表时ExportManagerImpl.exportHtml中的parameters参数经过reportRender.render之后就被清空了，于是在缓存报表的时候，缓存的键就是file+{};
   
   

2. 当点击在线打印时，HtmlPreviewServletAction.loadPrintPages(HttpServletRequest, HttpServletResponse)中parameters不为空，此时从缓存中获取报表的键是file+{xxx}，那么肯定是找不到缓存数据的，于是就报错了。

总结，就是存的时候的键与获取的时候的键不同。