Questions tagged as 'apache-poi'

Tagged questions
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Equivalent of apache poi in javascript, angulgarjs or react

I want to download an xlsx file so that it can be read in google documents. In java you can use apache poi, I want to know what is the equivalent in javascript, angularjs or react. For my part I will look for it and if I find the solution, I wil...
asked by 17.08.2018 / 17:25
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Insert Excel Specific Columns without "CreateRow" in POI

I have the following existential problem. I have an Excel File where I have to extract certain columns in specific (Working) but when I want to pass it to another Excel to save these Columns the system "Replaces" the previous Columns leaving onl...
asked by 25.05.2018 / 21:58
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Update In Excel

Good guys I need your help I want to edit an excel document but I still can not get it to edit in some of the columns what I do is read the URLs directly and then open them from an excel public void read_excel_update() throws Exception, IOExce...
asked by 23.05.2018 / 08:04
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XSSFWorkbook Apache POI Does not free memory

I read an excel *.xls of about 10 megabytes, in the next step the process increases javaw.exe in 1.5 Gb. public void importExcelMedidas(FileBean fBean) throws IOException { InputStream input = new ByteArrayInputStream(fichero...
asked by 26.04.2018 / 17:15
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Doubt when modifying WORD document from Java

I need to modify some templates that are in .doc format from Java , that is, by code I detect certain words of the document which I use as "variables" for later modify them by which I pass. I got through the POI library, access to that docu...
asked by 09.04.2018 / 12:01
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helps read excel file in java

I need to store the information of an xls file, in an arraylist, getting its columns one by one, I currently get all the file information, but I have no idea how to save each row in an arraylist, actually this is what I have xls file format...
asked by 23.11.2017 / 09:18
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Java heap space with apache-poi in tomcat

Good morning, When I read an xlsx file executing my program against the eclipse server, it reads it and executes it without problem, but when generating the war and deploying it on a tomcat server I get a memory error (java.lang.OutOfMemoryEr...
asked by 21.11.2017 / 14:20
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error when downloading any file generated in java

I have a web application which I have deployed to a local server, I have two classes to generate pdf files and excel libraries that I am using are apache poi and itextpdf 5.4.3 when I test in my netbens works perfect generates the files and I ca...
asked by 15.03.2017 / 05:08
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Do Merge of data to EXCEL Documents?

Good day, it happens that I need to make a functionality that modifies some fields that are defined in an excel document in JAVA just as I am doing it at the moment with word documents (.docx), the truth is that there is an API but I have no ide...
asked by 04.11.2016 / 21:30
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Excel POI cell in bold

Good that such They know what is the method to put the text of a cell in black to apply the style from java with the class poi Thanks and a greeting. HSSFWorkbook a = archivoexcel(); HSSFSheet hoja = a.createSheet("LOGS"); int longitud...
asked by 04.06.2018 / 14:06