How to upload and save a file in a folder

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January 9, 2009 at 5:54 AM

Hi Friends,

I need that code using servlets and jsp.....
Please let me know the code

Thanks in advance

January 9, 2009 at 11:40 PM

Hi friend,

Code to help in solving the problem :

<html>

<head><title>Image Upload</title></head>

<body>
<form action="/example/UploadImage" method="post" enctype="multipart/form-data"
name="productForm" id="productForm"><br><br>
<table width="400px" align="center" border=0 style="background-color:ffeeff;">
<tr>
<td align="center" colspan=2 style="font-weight:bold;font-size:20pt;">
Image Details</td>
</tr>

<tr>
<td align="center" colspan=2> </td>
</tr>

<tr>
<td>Image Link: </td>
<td>
<input type="file" name="file" id="file">
<td>
</tr>

<tr>
<td></td>
<td><input type="submit" name="Submit" value="Submit"></td>
</tr>
<tr>
<td colspan="2"> </td>
</tr>

</table>
</form>
</body>

</html>

January 9, 2009 at 11:47 PM

"UploadImage.java"
import java.io.*;
import java.sql.*;
import java.util.*;
import java.text.*;
import java.util.regex.*;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.*;

import javax.servlet.*;
import javax.servlet.http.*;

public class UploadImage extends HttpServlet{
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
System.out.println("request: "+request);
if (!isMultipart) {
System.out.println("File Not Uploaded");
} else {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
List items = null;

try {
items = upload.parseRequest(request);
System.out.println("items: "+items);
} catch (FileUploadException e) {
e.printStackTrace();
}
Iterator itr = items.iterator();
while (itr.hasNext()) {
FileItem item = (FileItem) itr.next();
if (item.isFormField()){
String name = item.getFieldName();
System.out.println("name: "+name);
String value = item.getString();
System.out.println("value: "+value);
} else {
try {
String itemName = item.getName();
Random generator = new Random();
int r = Math.abs(generator.nextInt());

String reg = "[.*]";
String replacingtext = "";
System.out.println("Text before replacing is:-" + itemName);
Pattern pattern = Pattern.compile(reg);
Matcher matcher = pattern.matcher(itemName);
StringBuffer buffer = new StringBuffer();

while (matcher.find()) {
matcher.appendReplacement(buffer, replacingtext);
}

January 9, 2009 at 11:48 PM

int IndexOf = itemName.indexOf(".");
String domainName = itemName.substring(IndexOf);
System.out.println("domainName: "+domainName);

String finalimage = buffer.toString()+"_"+r+domainName;
System.out.println("Final Image==="+finalimage);

File savedFile = new File("C:/apache-tomcat-6.0.16/
webapps/example/"+"images\\"+finalimage);
item.write(savedFile);
out.println("<html>");
out.println("<body>");
out.println("<table><tr><td>");
out.println("<img src=images/"+finalimage+">");
out.println("</td></tr></table>");

Connection conn = null;
String url = "jdbc:mysql://localhost:3306/";;
String dbName = "test";
String driver = "com.mysql.jdbc.Driver";
String username = "root";
String userPassword = "root";
String strQuery = null;
String strQuery1 = null;
String imgLen="";

try {
System.out.println("itemName::::: "+itemName);
Class.forName(driver).newInstance();
conn = DriverManager.getConnection(url+dbName,username,userPassword);
Statement st = conn.createStatement();
strQuery = "insert into testimage set image='"+finalimage+"'";
int rs = st.executeUpdate(strQuery);
System.out.println("Query Executed Successfully++++++++++++++");
out.println("image inserted successfully");
out.println("</body>");
out.println("</html>");
} catch (Exception e) {
System.out.println(e.getMessage());
} finally {
conn.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
}
}

Thanks

January 10, 2009 at 5:52 AM

Hi friend,

Thanks for your code....
Do i need any jarfiles to be placed in lib?
Java program when i tried to compile is showing some errors..

Thanks in advance

July 11, 2012 at 8:10 PM

you need to add the following jar to lib folder:

commons-io-1.3.1-osgi.jar commons-fileupload-1.2.jar ojdbc14.jar