Create excel file with poi

Create a class for creating and writing to the excel file. Step 5. Create a utility class. Step 6. Create a class which holds constants. Step 7. Run the above test class, you will get workbook. Your email address will not be published. Roy Tutorials Technical… Theoretical… Practical…. XSSFCell; import org. XSSFRow; import org. XSSFSheet; import org. XSSFTable; import org. XSSFWorkbook; import org. CTTable; import org.

CTTableColumn; import org. CTTableColumns; import org. In the end I did find out what I have been doing wrong. You appear to be writing the POI workbook into a file. Shouldn't you be writing it to your http response stream so it goes to the browser? Add a comment. Active Oldest Votes. Here is my own sollution, I forgot to add it when I solved the issue: import java.

IOException; import java. The reason is, each character in a column is divided into fractions in excel. So is 10 characters wide. We use the sheet object to create a row and assign it to a new Row object. Then you can create a cell and call setCellValue to actually set values. You can do this for as many cells as you like. Remember to pass the row and cell ID in the respective methods to avoid overriding the earlier rows and cells.

You can also take advantage of the built-in Cell Formats of Excel by setting the type of value you wish to set as follows:. It is a little bit more complicated when showing times which have a specific format. It is not possible to do this with just Cell formatting. I have written a handy helper method just for this scenario:.

As you can probably see, we are using the workbook wb to get hold of some kind of CreationHelper object. We can create a custom style for our new cell with this method. Wow, that formula right? This is again a fraction: 1 day divided by the seconds of that day. Multiply it by the number seconds you want to show. For some reason this value needs to be a double. Sign up or log in Sign up using Google.

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