Having the facility of FormFile and the apache upload package, I thought the task would be easy but I had tough time due the dynamic part of this task. In the end I solved the problem. And here is the solution for you people as you should not reinvent the wheel. :)
Add button problem was solved by a simple java script that created an INPUT tag and inserted to the existing form. The code is given below:
function addFileElement() {
fCount++;
var text = 'File:';
var tag='<input type="file" name="testFile['+fCount+']" value="">';
var brk='<br>';
var o1 = document.createTextNode(text);
var o2 = document.createElement(tag);
var o3 = document.createElement(brk);
fObject.appendChild(o3);
fObject.appendChild(o1);
fObject.appendChild(o2);
fObject.appendChild(o3);
}
As usual the form bean of struts had a FormFile and an ArrayList variable that would hold the entire set of files. Now, I the form bean we tune the setter method of FormFile so that, each time the function is called the new file that is being set is added to the ArrayList. The code is given below:
public void setTestFile(int in,FormFile t) {
try {
this.testFile = t; // testFile is FormFile’s obj
setFormFiles(t); // add the file to array
index++;
}catch(Exception e) {
System.out.println("Exception in setTestFile!" + e);
}
}
The complete source code can be downloaded from here. Enjoy Programming! ;)
