jasper-reports

问题 I want to view the jasper report that i created when i run "PDFLEAD.jsp" page. But it is showing like"getWriter() has already been called for this response." and it is displaying as the image given below.The code i tried is as follows PDFLEAD.jsp <%@page import = "net.sf.jasperreports.engine.design.JRDesignQuery"%> <%@page import = "net.sf.jasperreports.engine.xml.JRXmlLoader"%> <%@page import = "net.sf.jasperreports.engine.design.JasperDesign"%> <%@page import = "net.sf.jasperreports.view

问题 Dynamic row height based on data in table and make it for all the column I am working with Jaspersoft ireport designer 4.7.0. I have a table with 3 columns and dynamically set the table row height as per data using https://community.jaspersoft.com/wiki/dynamically-set-table-row-height-data. The requirement here is,I want to make all the table cell to the same height as the tallest object. Currently it works only for the row which has the tallest object.PFA the .jrxml. I want the second row

问题 I've got xml data like this: <root> <eee>aaa</eee> <eee>bbb</eee> <eee>ccc</eee> <eee>ddd</eee> </root> I want to displays elements eee in my detail band. Therefore I added textField that contains expression $F{My_elem} and I get: aaa bbb ccc ddd It looks pretty good but the problem is when I add "Print when" expression into my textField which is: $V{REPORT_COUNT}%2==1 My report displays: aaa ddd But my aim is to display: aaa ddd "Remove line when blank" set to TextField does't work. How can

问题 I'm looking at using Jasper Reports to handle reporting for a large database (tens of gigabytes of data), but my data uses an EAV format. As far as I can tell, this means I'd need to use a custom data model, as a Java class implementing JRDataSource. The amount of data I'm dealing with, however, means that simply implementing the interface would force the report to fetch and filter far too much data. I'd need to push the filtering duties to the database system to get any practical speed, but

问题 I am using JasperReports and I cannot find the way to create consecutive tables. When the first one is filled in, the next one will cover it instead of being shifted. Did anyone face this problem before? UPDATE I am using the subreport with two detail bands and one table into each of the detail bands. So far I generate the page for the parent report but the subreport area is blank. This is the code where I interact with the reports: try { HashMap param = new HashMap();

问题 I'm new with iReport and trying the following: I want the report to notice in the detail-band when a special field has another value as it has the entry before. I think that could be possible if I use a variable but I have no idea how to do that. Can someone help me out with an example so I can see the right syntax? I tried to create a parameter $P{MyField} and fill it with a statement in the "Print when" like this: ($P{MyField}.put("MyField", $F{MyField}) == null ) ? Boolean.FALSE:Boolean

问题 I'm trying to develop a Gantt chart in iReport , but the time range is displayed in months. I want it to be in date or week. Is this possible in iReport ? 回答1: I'm unfamiliar with ireport, but you may be able to use the approach shown here by specifying DateTickUnitType.DAY and the desired interval. A related example may be found here. 回答2: You can extend page width and the chart width to accommodate shorter ranges. The intervals automatically adjust to available page width. 来源： https:/

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm creating a JasperReports's report using some database connection using iReport. I have added a new field to the report. That field does not exist in the database column. I have put that column in the report and assigning the value to this field using the expression. It compiles fine but when I fill the

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I'm creating a JasperReports's report using some database connection using iReport. I have added a new field to the report. That field does not exist in the database column. I have put that column in the report and assigning the value to this field using the expression. It compiles fine but when I fill the

问题 I am new to JasperReports Server . I am having different campaigns in my DB. And users assigned to these campaigns. I want my JR Server user to provide campaign IDs to run a report. For this, I have create a query and an input control to show the list of campaigns in a list to take input from user. The query I created shows all the campaigns in the DB. I want to show only those campaigns in which the logged in user is assigned. Is there any way to do this in JasperReports Server ? 回答1: It