Upload multiple files using struts

This will be used in saving the file from temp directory to another directory inside web application. The filePath parameter defined for uploadMultipleFiles action, hence we have setFilePath method in the above class.

This method is used by Struts 2 params interceptor to read the params configured in struts. The three variables that are set by file upload and params interceptors are File, file name and content type.

Since your index. Here I have used array for file and fileName because of multiple files will be uploaded. You can also use List instead of array to upload multiple files. Now files are successfully uploaded to the location:. Your email address will not be published.

We are about to create a HTML form that allows user to pick up a file to upload. Copy and paste the following code into the upload. We are going to write code for the action class which is responsible for receiving request from upload.

Under src folder, right click on the package com. In the New Java Class dialog:. Click OK. We have selected a superclass for the FileUploadAction class. Copy and paste the following code to the FileUploadAction. In order for the interceptor fileUpload can transfer information about the uploaded file, the action class must declare three pairs of getter and setter:.

The variable fileUpload refers to the actual uploaded file. The method name doUpload must match the parameter method of the action defined in struts. Since uploading file is really done by the interceptor, mission of the action class is very simple: just copy the uploaded file to another file. Next, we will create the result. Prerequisites Java at least 8, Struts 2.

You can use build. View File The important points to note in index. File; import java. FileInputStream; import java. As mentioned in the previous section one technique for uploading multiple files would be to simply have multiple form input elements of type file all with different names. This would require a number of setter methods that was equal to 3 times the number of files being uploaded.

Another option is to use Arrays or java. You can configure fileUpload interceptor to limit the size of the uploading file. Note, this is not related to the various properties found in struts.

Default to approximately 2MB. This interceptor will add several field errors, assuming that the action implements ValidationAware. These error messages are based on several i18n values stored in struts-messages. You can override the text of these messages by providing text for the following keys:. Multiple files are uploaded by the single request. To control a total size of the request you can use a constant or property struts.

For example the constant sets a limit to 1M per request. Stack Overflow for Teams — Collaborate and share knowledge with a private group.