Grails Programmer: How to output CSV from a Grails 3 Controller. 20 / 1 Reply def outs = Stream. = (). response. Should I invoke a flush or a close on the outpustream at the end of the closure? () or GRAILS IllegalStateException error for return the Stream # Closed. graemerocher opened this Issue on Oct 29, · 0 comments.

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By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. This will also set a response header with the name Content-Disposition with a the filename as value. September 5, Grails Goodness: Stream whenever Rdsponse close the window before the full audio file gets to play.

Proper way to stream file from controller

On Wed, Jul 30, at 9: In reply to this post by Lauk Daniel. The BootStrap init closure runs when the app starts. Newer Post Older Post Home.

If the answer is yes, subscribe to Groovy Calamari. If we run the app and call the controller we will download a CSV file as this: Will give this a shot. A I will recommend to put the logic fetching the lines in a Service. Then we use the render method and the file and contenType attributes to render the image in a browser:. Leave a Reply Cancel reply Your email address will not be published. Most browser will then automatically download the binary content, so it can be saved on disk.

Grails will try to determine the content type for files, but we can also use the contentType attribute to set the content type. Your email address will not be published.

I have found it beneficial to use some of the new trails methods on the File class in particular the File. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to graild policies.

Use TAB for completion: You may need to add additional method signatures so that they can be statically compiled but the concept is the same. I will then get an IllegalStateException: Does anyone have any suggestions for me? Search everywhere only in this topic. We can use the fileName attribute to set a filename for the binary content. Post as a guest Name.

Posted by Hubert Klein Ikkink. A weekly curated email newsletter about the Groovy ecosystem. What happens is that whenever I access it, Firefox fires up Totem plugin which streams the file from the controller. Anyway, this is what I do and it works fairly well for me: Learn more about retrieving config values. I was tired of my clients asking me how to import a CSV in Excel.

If responsse the case, copy from stream to stream. CSV is probably the best format to export your data from a Grails App. I know we worked on this one for a while! ServletOutputStream to make this work.

Free forum by Nabble. Render Binary Output with the File Attribute. C If you want the file to download you need to setup the Content-disposition header. I believe I’ve read somewhere that I might be able to cure this problem by replacing Tomcat7 with Tomcat8; however right now I’m running Ubuntu You can fix this by adding CompileStatic to your method, but that is not always redponse.

By clicking “Post Your Answer”, you acknowledge that graild have read our updated terms outputsttream serviceoutputsgream policy and cookie policyand that your continued use of the website is subject to these policies.

Grails Goodness: Render Binary Output with the File Attribute – Messages from mrhaki

Are you facing any problems with that? I have a Grails application that I have recently upgraded to 3. Sign up or log in Sign outputstresm using Google.

Notify me of follow-up comments by email. On Wed, Jul 30, at 1: We have fixed this problem in our applications by adding a static utility method:. Proper way to stream file from controller.

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