ireport

问题 I'm creating reports using Java and JasperReports. What I've got is a query that outputs hotel details in order of Hotel Name. My problem is that, a lot of the time the Hotel Name field doesn't change from row to row. I want to find out how to only print each different hotel name once to stop the report printing unnecessary hotel names. Anyone have any idea how to do this? 回答1: Would a group not do what you want? You put the hotel name into a group and it will only be printed once. 回答2: use

问题 I need to display a CLOB field with longer than 4000 characters in a text field using in iReport. I am using iReport version 5.5.0, I tried converting the CLOB to InputStream but it did not work, all I get is: java.io.ByteArrayInputStream@43842a66 I tried getSubString(long,int) but it only works for strings smaller than 4000 chars. stringValue() and toString() also did not work. Thanks for any help. EDIT: Clob.getSubString(long,int) method worked fine in my latter tests, I don't know why it

问题 Is there a way to convert a xls file into a pdf ? I want to make a dynamical report directly to pdf file, but didn't find a way to make dynamic columns on iReport, so I've made a method on Java that exports to xls dynamically. So I was wondering if is there a way to convert this file to pdf , but it need to be on a method from my code. Or if you have a better idea, it can be used too. Maybe there's a way to make this pdf file from my code as I did with xls . Please help me out. Thanks. 回答1:

问题 The summary band is always aligned to the bottom of the page when there is only 1 page. But when the summary band doesn't fit on the first page, it will be shown on the second page. If there is no Detail on the second page, only the summary band will be shown (together with the header and footer bands). Is it possible to align the Summary band to the bottom of the page, just like the footer? This would help me a lot in my current layout design. 来源： https://stackoverflow.com/questions/6938133

问题 I am working on a profit and loss report that should look like this: And my data table looks like this: For this P&L I have query #1 that populates the data for the current month and the 3 months prior. Then I have query #2 to calculate a 6-month rolling average, and then query #3 to calculate a year-to-date total. They're all joined with union statements. I can't figure out the best way to get this to render in iReport. Right now I am using a crosstab, and I was able to finagle the "measures

问题 This question already has answers here : How to show/hide a column at runtime? (8 answers) Closed 2 years ago . I need to create a report where the number of columns changes based on the data being passed to iReport just like with a subreport. Is there a way to do this? 回答1: I agree with Ischin's answer, but I will elaborate. The Crosstab Report will allow you to have dynamic columns because it allows you to pivot your data. You can select one or more fields to group by to create the columns.

问题 This question already has answers here : How to show/hide a column at runtime? (8 answers) Closed 2 years ago . I need to create a report where the number of columns changes based on the data being passed to iReport just like with a subreport. Is there a way to do this? 回答1: I agree with Ischin's answer, but I will elaborate. The Crosstab Report will allow you to have dynamic columns because it allows you to pivot your data. You can select one or more fields to group by to create the columns.

问题 If my report contains too many fields and it is already in landscape mode, few fields like email address or url fields may be too large while displaying url/email data on the report how do we make sure data is not truncated over the report ? 回答1: You should check the 'strech with overflow' checbox on the text-field (if youre editting the xml directly, this would be <textField isStretchWithOverflow="true" ) This would cause fields that are too big to overflow to the next line, instead on being

问题 I am loading an jrxml file in netbeans which is succefully loaded. But when I'm deploying it as a jar file it gives the below error: Error net.sf.jasperreports.engine.JRException: java.io.FileNotFoundException: src \Reports\print.jrxml(The system cannot find the path specified) Code try { jasperdesign=JRXmlLoader.load("src/Reports/print.jrxml"); } catch(Exception error) { Notify.showMessageDialog(null, ""+error+"", "Error Loading Appointment JasperForm", Notify.ERROR_MESSAGE); } 回答1: I doubt

问题 I have a problem with conditionalStyle in iReport . I have the following textFields ( ${nameField} = field value ): ${field1}=30 ${field2}=40 ${field3}=50 ${field4}=23 ${field5}=1 ${field6}=45 ${field7}=34 ${field8}=20 ${field9}=0 I need set difference background in every textField depend of the value of the field. I create a new Style and set the conditions: <style name="ColoredField"> <conditionalStyle> <conditionExpression><![CDATA[$F{field1} == 300]]></conditionExpression> <style mode=