apache-poi

问题 I'm working on setting up an automated processing system for a (ever growing) unstructured collection of excel documents. The collection consists of both old-school .xls files and new .xlsx files. In my Java-based solution I am already making use of the Apache POI toolkit to analyse the documents. One challenges that I have not been able to tackle yet, is how to identify links between documents so as to chart dependencies. I have not yet been able to figure out how to conveniently extract a

问题 I am new to apache poi, I wanted to split a excel file into multiple files based on row count. E.g data.xlsx has 15k rows, new files should be like data_1.xlsx with 5k rows,data_2.xlsx should be 5-10k and data_3.xlsx should be 10-15k. 回答1: I've got you. package com.industries.seanimus; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.apache.poi.EncryptedDocumentException; import org.apache.poi

问题 I am new to apache poi, I wanted to split a excel file into multiple files based on row count. E.g data.xlsx has 15k rows, new files should be like data_1.xlsx with 5k rows,data_2.xlsx should be 5-10k and data_3.xlsx should be 10-15k. 回答1: I've got you. package com.industries.seanimus; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.ArrayList; import java.util.List; import org.apache.poi.EncryptedDocumentException; import org.apache.poi

问题 Currently i have my code as bean.setREPO_DATE(row.getCell(16).getDateCellValue()); it works fine if cell is formatted as date in excel. However it also converts some integer or long like 1234 or 5699 to date. I know the reason behind this too. However i want to apply a check before executing above line. Something like this if(row.getCell(16).isOfDateFormat){ bean.setREPO_DATE(row.getCell(16).getDateCellValue()); } Please Guide me.. Thanks in Advance ! 回答1: Try this, use import org.apache.poi

问题 I am trying to read an excel sheet of data, I am able to get the data and read it using HSSFWorkbook Everything works well, I am able to get the data. I have set a password for the workbook, manually in the excel sheet Protect Workbook to "ABCXYZ" and while opening the excel file it will ask me the password and only after the password in correct it lets me in to write or read the excel file. My question is how to get this password "ABCXYZ" in the java program. HSSFWorkbook wb = new

问题 I am using selenium and java to scrape data on a specific site, but with the code below I can write only 1 data in the spreadsheet, it is not recording all the data in sequence as it should be. I can't structure the loop correctly. public void gravarDados() throws IOException { int i = 0; File localPlanilha = new File("tools/resultado_da_pesquisa.xlsx"); FileInputStream planilhaExistente = new FileInputStream(localPlanilha); XSSFWorkbook plan = new XSSFWorkbook(planilhaExistente); XSSFSheet

问题 I have managed to merge two documents using Apache POI XWPFDocument and CTBody class. However, when opening the merged documents it gives an unsupported format so I tried to save it as pdf format but the same issue persist. I am using https://mvnrepository.com/artifact/fr.opensagres.xdocreport/fr.opensagres.poi.xwpf.converter.pdf/2.0.2 I have tried this - https://www.programcreek.com/java-api-examples/index.php?api=org.apache.poi.xwpf.converter.pdf.PdfConverter the main goal of the

问题 I used the latest apache poi <dependency> <groupId>org.apache.poi</groupId> <artifactId>poi-ooxml</artifactId> <version>3.17</version> </dependency> but I cannot set bold font, below code does not work font.setBold(true); because the default it true set a boolean value for the boldness to use. If omitted, the default value is true. and does not exist setBoldWeight method either So how can I set bold weight in the latest apache poi? code XSSFWorkbook wb = new XSSFWorkbook() XSSFSheet sheet =

问题 I need to create an Excel checkbox in an XSSFSheet, but I have found no obvious classes/methods for doing so in the Java Apache POI library (4.0.1), nor any examples. Any suggestions? 回答1: There are two types of controls possible in Microsoft Excel . There are the legacy form controls and ActiveX controls. Creating legacy form controls would be possible. ActiveX controls wold be much more complex. The legacy form controls are stored in VML drawings per sheet. Apache poi has a XSSFVMLDrawing

问题 I need to create an Excel checkbox in an XSSFSheet, but I have found no obvious classes/methods for doing so in the Java Apache POI library (4.0.1), nor any examples. Any suggestions? 回答1: There are two types of controls possible in Microsoft Excel . There are the legacy form controls and ActiveX controls. Creating legacy form controls would be possible. ActiveX controls wold be much more complex. The legacy form controls are stored in VML drawings per sheet. Apache poi has a XSSFVMLDrawing