Example of jspsmart file upload and email sending

1. jspsmart File Upload (common form with common form fields and several file selection fields)

Page:
Copy codeThe Code is as follows:
<Form class = "form-horizontal" id = "estForm" action = "/tools/toolServlet? Type = est "method =" post "enctype =" multipart/form-data ">
<Div class = "control-group">
<Label class = "control-label" for = "email"> Email </label>
<Div class = "controls">
<Input type = "text" id = "email" name = "email" placeholder = "Email" onblur = "checkEmail ()">
<Span class = "help-inline"> </span>
</Div>
</Div>
<Div class = "control-group">
<Label class = "control-label" for = "file"> File </label>
<Div class = "controls">
<Input type = "file" name = "file" id = "file" onchange = "getFileInfo ()"/>
<Span class = "help-inline"> </span>
</Div>
</Div>

<! -- Hide the file domain begin
<Div class = "control-group" id = "hiddenFileDiv" style = "display: none;">
<Label class = "control-label" for = "file"> File </label>
<Div class = "controls">
<Input type = "file" name = "file1" id = "file1"/>
<Span class = "help-inline"> </span>
</Div>
</Div> -->
<! -- Hide the object domain end

<Div class = "control-group">
<Label class = "control-label" for = "file"> crossmatch </label>
<Div class = "controls">
<Select name = "crossmatch" id = "crossmatch">
<Option value = "Y"> Y </option>
<Option value = "N"> N </option>
</Select>
<Span class = "help-inline"> </span>
</Div>
</Div> -->
<Div class = "control-group">
<Div class = "controls">
<! -- <A href = "javascript: void (0);" id = "upload" class = "btn"> submit </a> -->
<Button type = "submit" class = "btn" id = "upload"> submit </button>
<Button type = "reset" class = "btn" id = "reset"> reset </button>
</Div>
</Div>
</Form>

Processing class:
Copy codeThe Code is as follows:
/**
* File Upload
* @ Param req
* @ Param resp
* @ Throws ServletException
* @ Throws IOException
*/
Protected void doUpload (HttpServletRequest req, HttpServletResponse resp)
Throws ServletException, IOException {
Boolean flag = true;
String email = "";
String dataId = String. valueOf (new Date (). getTime ());
// Generate the dataId directory
String newPath = estPath + "/" + dataId;
CreateDir (newPath );
// Generate the data directory
NewPath = estPath + "/" + dataId + "/data ";
CreateDir (newPath );
// Generate the data directory
NewPath = estPath + "/" + dataId + "/result ";
CreateDir (newPath );
Try {
DiskFileItemFactory factory = new DiskFileItemFactory ();
ServletFileUpload upload = new ServletFileUpload (factory );
Upload. setHeaderEncoding ("UTF-8 ");
List <FileItem> list = upload. parseRequest (req );
For (FileItem item: list ){
If (! (Item. isFormField ())){
System. err. println ("item name:" + item. getName ());
If (item! = Null) & (item. getName ()! = Null )&&(! (Item. getName (). equals ("")))){
String uploadFilename = item. getName ();
// Process File Upload
InputStream in = item. getInputStream ();
Int len = 0;
Byte [] B = new byte [1024];
NewPath = estPath + "/" + dataId + "/data /";
FileOutputStream out = new FileOutputStream (newPath + uploadFilename );
While (len = in. read (B)> 0 ){
Out. write (B, 0, len );
}
In. close ();
Out. close ();
Item. delete (); // delete the temporary file corresponding to the item
}
} Else {
String fValue = item. getString ();
If (fValue. indexOf ("@")! =-1 ){
// Email
Email = fValue;
System. err. println ("email:" + email );
}
}
}
} Catch (Exception e ){
Flag = false;
System. err. println ("File Upload Failed! "+ E );
}
}
Req. setAttribute ("flag", flag );
Req. getRequestDispatcher ("/view/est. jsp"). forward (req, resp );
}

2. Email sending:
Copy codeThe Code is as follows:
Public class EmailAttachService {
Private static String host = "smtp.163.com ";
Private static String username = "";
Private static String password = "";
Private static String mailSubject = "";
Public static Vector vfile = new Vector ();
// Add an attachment
Public static void addAttachemnt (String fPath ){
Vfile. add (fPath );
}
// Send an email
Public static void sendMail (String emailTo, String msg ){
// Vfile attachment file set
Try {
Properties props = new Properties (); // obtain the system environment
Authenticator auth = new EmailAuthenticator (username, password); // Authenticator
Props. put ("mail. smtp. host", host );
Props. put ("mail. smtp. auth", "true ");

Session session = Session. getDefaultInstance (props, auth );
// Set the session to communicate with the email server
MimeMessage message = new MimeMessage (session );
// Set the sender's address
Message. setFrom (new InternetAddress (username ));
// Set the email Receiving address
Message. addRecipient (Message. RecipientType. TO, new InternetAddress (emailTo ));
// Set the Email Subject
Message. setSubject (mailSubject );
// Construct Multipart
Multipart mp = new MimeMultipart ();
// Add the body to Multipart
MimeBodyPart content = new MimeBodyPart ();
Content. setContent (msg, "text/html; charset = gb2312 ");
Mp. addBodyPart (content );
// Add an attachment to Multipart
Enumeration efile = vfile. elements ();
While (efile. hasMoreElements ()){
MimeBodyPart fattach = new MimeBodyPart ();
String fName = efile. nextElement (). toString ();
FileDataSource fds = new FileDataSource (fName );
Fattach. setDataHandler (new DataHandler (fds ));
Fattach. setFileName (MimeUtility. encodeWord (fds. getName (), "GB2312", null ));
Mp. addBodyPart (fattach );
}
Vfile. removeAllElements ();
Message. setContent (mp );
// Set the mail sending period
Message. setSentDate (new Date ());
Message. saveChanges ();
// Send an email
Transport. send (message );
} Catch (Exception e ){
E. printStackTrace ();
}
}