I've seen a few questions about this before but I'm still unclear with what I'm supposed to do. I have a servlet that uploads a file to a folder in my web directory and stores the image directory (img/image.jpg) in a database. When I submit the form and the file is uploaded I redirect to another servlet to display the new information from the form but the image doesn't show until I click ctrl + f5. Is there a way around this? Below is my code for my file upload:
String upDir = "C://Users//Ben//Documents//NetBeansProjects//GigForMe//web//img";
userDAO uDAO = new userDAO();
String userid = null;
String Email = null;
String BIO = null;
String admin = null;
String ban = null;
String password = null;
String password1 = null;
int i = 0;
//process only if its multipart content
if(ServletFileUpload.isMultipartContent(request)){
try {
List<FileItem> multiparts = new ServletFileUpload(
new DiskFileItemFactory()).parseRequest(request);
for(FileItem item : multiparts){
if(item.isFormField()){
if (i ==0) {
userid = item.getString();
System.out.println(userid);
}else if( i== 1){
Email = item.getString();
System.out.println(Email);
}else if(i == 2){
BIO = item.getString();
System.out.println(BIO);
}else if(i == 3){
admin = item.getString();
System.out.println(admin);
}else if(i == 4){
ban = item.getString();
System.out.println(ban);
}else if(i == 5){
password = item.getString();
System.out.println(password);
if(password.isEmpty()){
int UserID = Integer.parseInt(userid);
String userPassword = uDAO.getUserPassword(UserID);
uDAO.updateUser(UserID, Email, BIO, admin, ban, userPassword);
}else if( password.equals("checkboxPassword")){
}
}else if(i==6){
int UserID = Integer.parseInt(userid);
password1 = item.getString();
System.out.println(password1);
if (password.equals("checkboxPassword")) {
uDAO.updateUser(UserID, Email, BIO, admin, ban, password1);
}
}
//uDAO.updateUser(UserID, Email, BIO, admin, ban, userPassword);
i++;
}else if(!item.isFormField()){
String name = new File(item.getName()).getName();
Random rn = new Random();
int answer = rn.nextInt(1000000000);
if (name.length() == 0) {
}else{
String rename = answer + name;
String rename1 = rename.replace(" ","");
int UserID = Integer.parseInt(userid);
item.write( new File(upDir+ File.separator + rename1));
uDAO.updateDirectory(UserID, rename1);
//File uploaded successfully
request.setAttribute("message", "File Uploaded Successfully");
}
}
}
System.out.println("File Uploaded Successfully");
} catch (Exception ex) {
request.setAttribute("message", "File Upload Failed due to " + ex);
}
}else{
request.setAttribute("message",
"Sorry this Servlet only handles file upload request");
}
Random rn = new Random();
int uid = rn.nextInt(1000000000);
response.sendRedirect("UserManagement?id="+uid);
