Blank ireports from jasper

Rails
1

hi all

i have successfully integrated jasper with my application but the
problem is that when i m generating reports thru it…its giving me a
blank rtf file…

if i write a xml file its giving me the xml data but the conversion of
xml to text is not taking place…

Is there a way to solve it

pls let me know

thanks

2

Hi,
First, lets say that I am not using ireports from jasper, I am using
BIRT on glassfish and have it integrated through html links.
I would first check out the database statement that you are issuing,
as sometimes if data on joins it may not bring back anything.
If that sql statement gives you a result set, I would try running the
report on a local machine where the repository is, to see if you get
results.
If you are successful with running the report on the db machine, run
it on another machine outside of your program.
If successful there run it on that machine, check to see if your
program can connect to the database.

I know that jasper, like birt , is a java program and it needs to be
run on a java server. Integration is usually done through links, but
can be fully integrated if you use jRuby. If you do it through html
links, take a look at the servers log files, they usually are a gold
mine of information.

WW

3

i think you should check your log info.
if not,check the component size,assure it is proper in the band.

On 3ÔÂ5ÈÕ, ÏÂÎç8ʱ31·Ö, Dhaval P. [email protected]

4

ok i figured it out there was some java installation problem and it
wasnt able to locate the java.io file…So integration is now done

can ne one now tell me if they have generated graph dynamically using
ireport??
if so pls tell me the method for it

thanks

5

Vincent.Z wrote:

i think you should check your log info.
if not,check the component size,assure it is proper in the band.

On 3��5��, ����8ʱ31��, Dhaval P. [email protected]

Compiling to file… ./custrep.jasper →
/opt/jasperserver-2.1/ireport/bin/customer_report.java
Errors compiling ./custrep.jasper.
net.sf.jasperreports.engine.JRException: Error saving expressions class
file :
/opt/jasperserver-2.1/ireport/bin/customer_report_1204782512448_72908.java
at
net.sf.jasperreports.engine.util.JRSaver.saveClassSource(JRSaver.java:171)
at
net.sf.jasperreports.engine.design.JRAbstractCompiler.getSourceFile(JRAbstractCompiler.java:297)
at
net.sf.jasperreports.engine.design.JRAbstractCompiler.createCompileUnit(JRAbstractCompiler.java:271)
at
net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:168)
at
it.businesslogic.ireport.IReportCompiler.run(IReportCompiler.java:587)
at java.lang.Thread.run(Thread.java:675) Caused by:
java.io.FileNotFoundException:
/opt/jasperserver-2.1/ireport/bin/customer_report_1204782512448_72908.java
(Permission denied) at java.io.FileOutputStream.open(Native Method)

this is the error i m getting

can ne one tell me how to sove it

thanks