image problem in jsf

i tried to upload image to database in jsf but nothing is working. i think the problem may be from

the input form eg file.xhtml or from web.xml

below is my input so far

import org.apache.myfaces.custom.fileupload.UploadedFile;

public class UploadBean {
private UploadedFile uploadedFile;
public UploadedFile getUploadedFile() {
return uploadedFile;
}
public void setUploadedFile(UploadedFile uploadedFile) {
this.uploadedFile = uploadedFile;
}
public String getFileName() {
return fileName;
}
public void setFileName(String fileName) {
this.fileName = fileName;
}
public Blob getDbImage() {
return dbImage;
}
public void setDbImage(Blob dbImage) {
this.dbImage = dbImage;
}
private String fileName;
private Blob dbImage;
public String upload()
{

PreparedStatement ps = null;
Connection con = null;
try
{
Class.forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection("jdbc:mysql://localhost:3306/test", "root", "");
File imgfile = new File(uploadedFile.getName());
FileInputStream fin = new FileInputStream(imgfile);

String sql = "INSERT INTO upload_image (IMAGE,Image_name,image_length) VALUES(?,?,?)";
ps= con.prepareStatement(sql);
ps.setBinaryStream(1,fin,(int)imgfile.length());
ps.setString(2, imgfile.getName());
ps.setLong(3, uploadedFile.getSize());

k = ps.executeUpdate();
System.out.println("Record Added Successfully");
}

// exception

in web.xml I added

<filter>
<filter-name>extensionsFilter</filter-name>
 <filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter
  </filter-class>
    <init-param>
      <description>Set the size limit for uploaded files.
            Format: 10 - 10 bytes
            10k - 10 KB
            10m - 10 MB
            1g - 1 GB
        </description>
      <param-name>uploadMaxFileSize</param-name>
      <param-value>100m</param-value>
      </init-param>
      <init-param>
         <description>Set the threshold size - files below this
             limit are stored in memory, files above this limit
             are stored on disk.
                         Format: 10 - 10 bytes
                         10k - 10 KB
                         10m - 10 MB
                         1g - 1 GB
         </description>
         <param-name>uploadThresholdSize</param-name>
         <param-value>100k</param-value>
         </init-param>
</filter>

<filter-mapping>
         <filter-name>extensionsFilter</filter-name>
         <url-pattern>*.jsf</url-pattern>
</filter-mapping>

<filter-mapping>
          <filter-name>extensionsFilter</filter-name>
          <url-pattern>/faces/*</url-pattern>
</filter-mapping>