Download Image (stored As Blob) From Database To Client Machine?
Jul 2, 2014
We have web based application (Oracle DB, Weblogic middle tier) and a applet based application running on the browser.
We have a requirement to Load images from the database (stored as blob) to the client browser and the users can do the lookup on images when needed.
We need this to perform well, so there is no delay for the user experience. We have 2 options:
1. Load the images from the database to the Application Server and keep it. When the client request from the browser comes, download it from the application server.
2. Load the images (asynchronosly) when the user logs into the application and download them to the Client machine? Is this possible? Especially give that it is stored in the database as binary objects?
And then load for the user from the client box itself, upon request.
If 2nd option is possible, which once is recommended?
View Replies
ADVERTISEMENT
Dec 26, 2012
I am using Oracle Database. My images are stored in database in ORD Image format.
ORD Image = > [URL] .....
I am fetching image and displaying in JSP.
I want to resize image stored in database.
I found Java Advanced Imgaing API and Looking for JSP implementation example.
[URL] ....
OrdHttpUploadFile uploadPhoto = null;
OracleResultSet ors=null;
OracleCallableStatement ocstmt = null;
OrdImage ordImage=null;
OrdImage image=null;
[Code] ....
View Replies
View Related
Jan 5, 2015
I stored an image into MySQL database using swings and hibernate but I am struggling to retrieve that image from MySQL database and display same image in the jTable cell and same as on jLabel whatever I retrieve from the database using swings and hibernate .
View Replies
View Related
Mar 2, 2014
I am trying to write a byte array to a blob field in my database.
Below code is not working for me because the object is actually 902 bytes, however, the database tells me that it is 11 bytes once committed.
How to write to the blob field in my database?
Java Code:
protected void addFingerprint(byte[] fingerprintBytes) {
Statement stat;
try
{
updateQuery = "UPDATE " + currentTable + " SET CLERK_FINGERPRINT_DATA_BLOB = '"
[Code] ....
View Replies
View Related
Sep 4, 2014
How can I let Java Web Start download my application from the server every time I run it from the client (without keeping a copy on the client machine) ?
View Replies
View Related
Apr 2, 2014
My application loads some 15 Jars from the server, which slows down the entire process.
I need to Load the Jars from a local machine. I want to store the Jar files in the client machine and not in the server.
So that every time when a client need to run my application by a URL specified, the Jar file stored in his system should load.
View Replies
View Related
Aug 9, 2014
I had some questions about a theoretical java program. Say you had a java program on a linux server/pc that referenced a folder on that server. And say you had a Client PC (Windows) that had a share folder to that java program.
If that windows client PC tried to run the program would it run (with a GUI if it had one) and would the main directory of the java program still be on the linux server or would it be on the windows computer since that is the computer that is running the program?
Basically I have a program I am trying to find the best way to run it remotely on a windows computer but it references files on the linux server it is located at and needs to put files it creates there as well. I am just trying to make sure I understand my theory here on how the program will run if it IS run remotely.
View Replies
View Related
Sep 30, 2014
Does the following code, which gets a class from a remote server, caches the class on the client machine?
URL u = new URL("http://1.2.3.4:80/JavaClasses/MainClass.class");
InputStream input = u.openStream();
DataInputStream data = new DataInputStream(input);
byte classBytes[] = downloadByteCodesFromURL(data);
Class c = defineClass("MainClass", classBytes, 0, classBytes.length);
[Code] .....
View Replies
View Related
Aug 20, 2014
I am working on SpringMVC web application. Is there any way to detect from browser(jsp page) that any (exe) application is installed or not on client machine? And if not installed then show user the Popup to download that Application or Software . And if the user rejects to download that application then not allow him/her to login ....
View Replies
View Related
Apr 2, 2015
How to display pdf file which is stored in mysql database by using jsp and servlet ....
View Replies
View Related
May 20, 2014
I'm using jsf 2 to upload file, first I upload the file in a system directory, then trying to store the path to database with other information, my stuck is that when submitting I upload the file successfully, find it in the right place, find the other information such as description, file name ... in database but don't find the path. this is my managed bean :
package mbeans;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.util.List;
[code]...
View Replies
View Related
Oct 25, 2013
I did an application with jframe which i store member personal info like name, surname etc.But when i save it to Mysql database the values are ??????.I have changed database and table and columns collation to utf8, i checked java encoding it's utf-8 but the problem remains.i have spent hours in google search but nothing that works.
View Replies
View Related
Sep 17, 2014
I am new to Java Stored Procedures. There is a PL/SQL package in our legacy application(Oracle 9i) which pulls data from Oracle 8i source database through a DB link. Now we have upgraded our databas to Oracle 11g R2 from 9i. So the DB lint to Oracle 8i will no longer work in 11g. Hence I have created a Java stored procedure that establishes JDBC thin connection to the source 8i database. I have loaded the java stored procedure in the database using loadjava and have created a call specifaction.
I have called this java stored procedure inside the PL/SQL package. Now while executing the PL/SQL package, it takes the default driver ojdbc6.jar to establish JDBC connection and fails to connect to the 8i database giving ArrayIndexOutOfBounds Exception. While running the code in the linux application server with classes12.jar the code succeeds. But when the same is called in the database it fails.
1. How can I make my PL/SQL call use classes12.jar while calling the Java Stored Procedure?
2. How can I load the jar file(which includes my classes and the classes12.jar) into the datase as one object? (When I tried to load the whole jar, in database the classes and dependent jar loaded separately)
3. Is there a way to use classpath while calling the Java Stored Procedure like how we do from Unix?
View Replies
View Related
Dec 24, 2014
I had string url for image in mysql database and I want show image in mu jsp file bu I can't.
<c:forEach var="urun" items="${listUrun.rows}">
<tr>
<td><c:out value="${urun.kitapresim}" /></td>
<img src="<c:url value="${urun.kitapresim}" /> " width="270" height="190"/>
URL...
View Replies
View Related
Apr 11, 2015
I have a FileChooser:
JFrame parentFrame = new JFrame();
JFileChooser fileChooser = new JFileChooser();
fileChooser.setDialogTitle(txtPushCode.getText());
int userSelection = fileChooser.showSaveDialog(parentFrame);
if (userSelection == JFileChooser.APPROVE_OPTION) {
[Code] ....
But as you can see, it downloads only to "C:android empcoloricon.png". I want to download it to path where I chose in FileChooser with the name and extension I choose. In short, how can I use dynamic file path names in where ever I want in my applications?
View Replies
View Related
Apr 14, 2015
I have written a program in JAVA which fetches an image from MYSql Database. I get a BLOB object then I am trying to convert that BLOB object to string; again I am using that object to write the image to a file. the image file is getting created in E: but it does display any image
stmt = con.createStatement();
File imgfile = new File("E:
ew_red_phone1.jpg");
ResultSet RS=null;
Blob ProductPicture=null;
RS=stmt.executeQuery(Query);
while(RS.next())
[code]....
View Replies
View Related
Jan 25, 2013
I have to show more than one images on a jsp page which are frequently refreshed. I am getting images in stream from client end and i want to show them on jsp. How can show them on jsp and refresh them after getting new image from client side?
View Replies
View Related
Apr 11, 2014
I have developed a code to connecting remote windows M/C from local M/C by using SSH2 (ganymed-ssh2-build209.jar) API. when I run the code its giving below error. Is there any other way to connect remote windows system using java code.
Exception.
java.io.IOException: There was a problem while talking to <host name>:22
at ch.ethz.ssh2.Connection.connect(Connection.java:642)
at ch.ethz.ssh2.Connection.connect(Connection.java:460)
at Connect.RemoteServer.ConnectWindowsServer.runCommand(ConnectWindowsServer.java:55)
at Connect.RemoteServer.ConnectWindowsServer.main(ConnectWindowsServer.java:27)
Caused by: java.net.ConnectException: Connection refused: connect
[Code] ....
JAVA Code
import ch.ethz.ssh2.Connection;
import ch.ethz.ssh2.Session;
public void setAuthenticationInfo(String hostname, String username,String password) {
this.host = hostname;
this.userid = username;
this.password = password;
this.recentCommand = "";
System.out.println("setting authentication info completed for host=" + host );
[Code] .....
View Replies
View Related
Feb 28, 2014
I have a requirement where I have to send a file from a local system to unix box(present on client side) using java code.I have developed a code that is successfully sending the file from local system to client side unix box (I am connecting to client side unix box using VPN) provided I run the code in my eclipse IDE present in local system. But when I am running the same code in the unix box it is throwing null pointer exception.Might be the unix system is not recognising the local system. Please find the code.
package abc;
import java.io.File;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.Properties;
import com.jcraft.jsch.Channel;
[Code] ....
Error on unix box which I am getting is :-
Inside sftpConnection method
llllllll
fffffffffffff
Connection Successfull
Channel Connection Succesfull
aaaaa
Inside findFile method
Exception in thread "main" java.lang.NullPointerException
at abc.TranferFile.sftpConnection(TranferFile.java:58)
at abc.TranferFile.main(TranferFile.java:21)
View Replies
View Related
Mar 17, 2014
I want to add this image to database how can i do.
View Replies
View Related
Jan 28, 2014
I have a image package consisting of images and they are displayed in a jlabel.I used the code below for that
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
Image im=new ImageIcon(this.getClass()
.getResource("/images/" + imageNames[index])).getImage();
ImageIcon iconLogo = new ImageIcon(im);
jLabel5.setIcon(iconLogo);
}
Now I want to store the image displayed in the jlabel into the database(oracle).From the above code I dont know how to get the absolute path of the images.
View Replies
View Related
Oct 30, 2012
I am developing image gallery from images stored in oracle database.
I am using JQuery ColorBox plugin [URL] ..... and I need to specify image in href for plugin.
My JSP page [URL] .... fetch image from database and show.
I can see image in browser when I run [URL] ......
But following not working when JSP page specify in href.
<h2>No Transition + fixed width and height (75% of screen size)</h2>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=1">Grouped Photo 1</ a>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=2">Grouped Photo 2</ a>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=3">Grouped Photo 3</ a>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=4">Grouped Photo 1</ a>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=5">Grouped Photo 2</ a>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=6">Grouped Photo 3</ a>
class="group3" href="http://localhost:8080/gallery/show_image.jsp?id=7">Grouped Photo 3</ a>
View Replies
View Related
Jan 29, 2015
I want to write the image file from a database to disk by using a queue. I can write these images on disk from the result set. I am wrong in the following code? I get: "trying to write to disk: Closed Connection"
{code}
public class ExtractPicture implements Runnable{
private BlockingQueue<InputStreamMessage> queue;
public ExtractPicture(BlockingQueue<InputStreamMessage> queue){
[Code].....
View Replies
View Related
Nov 2, 2014
I want to store an image/file into oracle database using jsp.
I have written code to store data when am running in my machine it is working fine, but not working in server throwing an error saying that "The system cannot find the file specified."
I am attaching the code what am written.
View Replies
View Related
May 31, 2014
I've an image memorized into a databas in tinyblob form.
I call it in java in this mode:
Product p = new Product();
...
p.setImgByte(rs.getByte("ImmagineByte"));
(p is a javabean, and imgByte is a byte format variable)
Once done that, what i've to do for show it into a swing label?
I've already setted an image retrieving it from an url in this mode
PHP Code: Image img = ImageIO.read(new URL(a.getImmagine()));
Image resizedImage = img.getScaledInstance(imgContainer.getWidth(), imgContainer.getHeight(), Image.SCALE_SMOOTH);
imgContainer.setIcon(new ImageIcon(resizedImage)); mh_sh_highlight_all('php');
But i don't know how to do the same thing with a byte format image inteasd of the url...
View Replies
View Related
Jan 9, 2015
I need to retrieve an image from the MySQL DB and display it in my JSP. The code below retrieves and displays the image with success. But, an exception is thrown:
SEVERE: Servlet.service() for servlet [jsp] in context with path [/FileFinalText] threw exception
[java.lang.IllegalStateException: getOutputStream() has already been called for this response] with root cause
java.lang.IllegalStateException: getOutputStream() has already been called for this response
[code]...
how can I resolve the cause with the getOutputStream() and prevent this exception to occur?
View Replies
View Related
