First sorry if my question is basic, but really I have no idea how to handle it:)
I have an upload button that when I click on it I can upload image to the server my html code is as follow:
<html>
<head>
<title>File Uploading Form</title>
</head>
<body>
<h3>File Upload:</h3>
Select a file to upload: <br />
<form action="fileupload.jsp" method="post"
enctype="multipart/form-data">
<input type="file" name="file" size="50" />
<br />
<input type="submit" value="Upload File" />
</form>
</body>
</html>
And a jsp file that shows the result is as follow:
<%@ page import="java.io.*,java.util.*, javax.servlet.*" %>
<%@ page import="javax.servlet.http.*" %>
<%@ page import="org.apache.commons.fileupload.*" %>
<%@ page import="org.apache.commons.fileupload.disk.*" %>
<%@ page import="org.apache.commons.fileupload.servlet.*" %>
<%@ page import="org.apache.commons.io.output.*" %>
<html>
<head>
<title>File Uploading Form</title>
</head>
<body>
<%
String str="service_twitter_on2.png";
File file ;
String fileName="";
int maxFileSize = 5000 * 1024;
int maxMemSize = 5000 * 1024;
ServletContext context = pageContext.getServletContext();
String filePath = context.getInitParameter("file-upload");
/* filePath="C:\\Users\\Hamed\\Desktop\\temp\\"; */
filePath="E://ws//rrr//WebContent//images//";
// Verify the content type
String contentType = request.getContentType();
if ((contentType.indexOf("multipart/form-data") >= 0)) {
DiskFileItemFactory factory = new DiskFileItemFactory();
// maximum size that will be stored in memory
factory.setSizeThreshold(maxMemSize);
// Location to save data that is larger than maxMemSize.
factory.setRepository(new File("c:\\temp"));
// Create a new file upload handler
ServletFileUpload upload = new ServletFileUpload(factory);
// maximum file size to be uploaded.
upload.setSizeMax( maxFileSize );
try{
// Parse the request to get file items.
List fileItems = upload.parseRequest(request);
// Process the uploaded file items
Iterator i = fileItems.iterator();
out.println("<html>");
out.println("<head>");
out.println("<title>JSP File upload</title>");
out.println("</head>");
out.println("<body>");
while ( i.hasNext () )
{
FileItem fi = (FileItem)i.next();
if ( !fi.isFormField () )
{
// Get the uploaded file parameters
String fieldName = fi.getFieldName();
fileName = fi.getName();
boolean isInMemory = fi.isInMemory();
long sizeInBytes = fi.getSize();
// Write the file
if( fileName.lastIndexOf("\\") >= 0 ){
file = new File( filePath + fileName.substring(fileName.lastIndexOf("\\"))) ;
str=fileName.substring(fileName.lastIndexOf("\\"));
}else{
file = new File( filePath +
fileName.substring(fileName.lastIndexOf("\\")+1)) ;
str=fileName.substring(fileName.lastIndexOf("\\")+1);
}
fi.write( file ) ;
/* out.println("Uploaded Filename: " + filePath + fileName + "<br>"); */
out.println("Uploaded Filename: " + filePath + fileName + "<br><br>");
}
}
out.println("</body>");
out.println("</html>");
}catch(Exception ex) {
System.out.println(ex);
}
}else{
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet upload</title>");
out.println("</head>");
out.println("<body>");
out.println("<p>No file uploaded</p>");
out.println("</body>");
out.println("</html>");
}
%>
<img src="images/<%=str%>"/>
</body>
</html>
and it works but I want to send the image that user uploads through ajax (and recieve it in a servlet) rather than using form. I searched lot but I could not find any good example!
Can anyone help me?
